Electronic controls Catalogue

Transcripción

Refrigeration and Air Conditioning Controls
Catalogue
Electronic controls
ADAP-KOOL®
Refrigeration control systems
R E F R I G E R AT I O N A N D A I R C O N D I T I O N I N G
ADAP-KOOL® Refrigeration control systems
Introduction
ADAP-KOOL® refrigeration controls is a complete electronic
system for monitoring and controlling refrigerating plant.
The products cover all needs within modern control,
monitoring and alarm handling of commercial and industrial
refrigerating plant.
ADAP-KOOL® refrigeration controls consists of the following
components:
• Controllers – EK series
• Controllers – AK series
• Monitoring units
• Electronically operated expansion valves
• Temperature sensors
• Pressure sensors
• Data communication
• PC software
• The electronically operated expansion valves can be used
in refrigerating plant with capacities from 0.5 kW per
evaporator.
• The AKC controllers can be used with all refrigerants, and
with a simple setting of the software they can be adapted
to new refrigerants.
• Remote monitoring makes it possible to assess whether
alarms received, e.g. alarms during the night, require a
prompt service call or may be postponed.
• Suction pressure optimisation can be achieved with the
AKC controllers. Here the suction pressure is kept precisely so low that the most heavily loaded refrigeration
appliance can accurately keep the required temperature.
Contents
EK - series
Introduction ........................................................................... 3
Temperature control .............. EKC 101 ............................... 4
EKC 201 / 301 ...................... 6
Media temperature control
EKC 361 ............................ 12
EKC 367 ............................ 16
Control unit for refrigeration
appliances ............................. EKC 414A ......................... 20
Evaporator control ................. EKC 315A ......................... 24
Capacity control ..................... EKC 331 ............................ 28
Liquid level control ................ EKC 347 ............................ 30
Display ................................... EKA 161, EKA 162 ............ 34
EKA 151 ............................ 35
Monitoring
Data collection etc.
Micromon .......................... 36
m2 ..................................... 38
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AK - series
Introduction ........................................................................ 40
Refrigeration appliance control ......................................... 41
AKC 114-116 .................... 41
AKC 121A ......................... 43
Cold room control .................. AKC 121B ......................... 43
AKC 72A ........................... 44
AKC 151R ......................... 45
"-" with hot gas defrost
AKC 114G ......................... 46
Subcooling in the liquid line AKC 114G ......................... 47
Water chiller control ............... AKC 24W2 ........................ 48
AKC 25H7 ......................... 49
Compressor and condenser controls ................................ 50
AKC 25H1 ......................... 51
AKC 25H3 ......................... 52
AKC 25H5 ......................... 53
Monitoring .............................. AKL 111A .......................... 54
AKL 25 .............................. 54
Display ................................... AKA 14 .............................. 55
AKA 15 .............................. 55
Operation ............................... AKA 21, AK Monitor .......... 56
MIMIC, AKM 4, AKM 5 ....... 56
Gateways ............................... AKA 244, 243, 241 ............ 57
Override ............................................................................. 58
Ordering survey ..................... AK series ........................... 60
Valves and sensors
Expansion valves .................. AKV 10,15,20 .................... 62
AKVA 10, 15, 20 ................ 65
Evaporating pressure valve
TQ, PHTQ .......................... 68
KVQ ................................... 72
Pilot valve
CVQ ................................... 74
Coils for solenoid valves ................................................... 75
Temperature sensors ............. AKS 11, 12, 21, ................. 76
EKS 111 ............................ 76
Pressure transmitters ............. AKS 32, 32R, 33 ............... 78
Components for liquid level control .................................. 80
AKS 41 .............................. 81
SMV / SMVE ...................... 81
AKS 45 .............................. 81
38E .................................... 82
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EK series - Introduction
This series is based on easy and simple operation of the
independent controllers.
By means of two control knobs and a display the individual
functions can be set for the relevant application.
Extras
In most controllers it is possible to insert a module for data
communication. With this module the controller can be
connected to a system with central operation, data
collection and alarm monitoring.
(There is no possibility of data communication in controllers
of the type EKC 100).
Data communication takes place via an RS 485
communication unit based on LON.
Most of the controllers are prepared for data communication.
A module is pushed into the controller, the wires are drawn,
and the connection to the general operation is ready.
The link between EKC controllers and the general operation must be a gateway type AKA 243.
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Up to 60 EKC controillers may be connected to one AKA
243.
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Temperature control
EKC 101
EKC 101 for panel mounting has been specially developed
for control duties in refrigeration plant and heat plant so that
operation, setting and programming are optimised and
simplified as much as possible.
The controller is designed for defrost and room temperature
control via pump down or compressor start/stop in
refrigeration plant.
EKC 101 is used for
• temperature control for heating or cooling mode
• control of natural defrost in refrigeration plant
With only two keys, all functions can be set and programmed.
Features
• One electronic controller is able to replace one traditional
thermostat and defrost clock.
• The controller can be programmed very quickly using
serial interface equipment (OEM programming).
• Can control heat plant as well as refrigeration plant
The display shows the actual room temperature.
• An LED indicate whether the plant is operating
Technical data
Application example
Supply voltage
230 V a.c. +10/-15 %, 50/60 Hz
Power consumption
2.5 VA
Sensor type
EKS 111
PTC (R25 = 1000 ohm)
Controller-sensor
system
Display
Room temperature control by
pump down.
Natural defrost
on pump down.
Cable length
max. 10 m
Measuring range
-60 to +50°C
0 to +99°C
Accuracy
±1°
for sensor temperature
0 to +10°C;
±2°C
-60 to 0°C og
+10 to +50°C
LED-three digits (with decimal): 0.1°C
read-off accuracy in measuring range
max.1.5 mm2 multi-core cable
Relays
Controller relay, SPDT, 250 V a.c., 16 A
Imax. = 10 A ohmic/6 A AC-8 inductive
Operation
-5 to +55°C
Transpor t
-40 to +70°C
Enclosure
IP 54
Approvals
EU low-voltage directive and EMC
stipulations on CE marking are complied
with.
LVD-tested to EN 60730-1 and EN 60730-29 EMC-tested to EN 50081-1 and EN 500821
4
Room temperature
control by compressor start/stop.
Natural defrost on
compressor stop.
LED-two digits (no decimal): 1°C read-off
accuracy in measuring range
Electrical connection
cable
Ambient temperature
• Temperatures, times, parameter codes and alarm and
fault codes can be read from the display.
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EKC 101
Menu survey
Setting and read-off parameters
Parameter codes
Temperatur controller, temperature
Min. value
Max. value
Factory setting
-60(0)°C
50(99)°C
0°C
Actual setting
Thermostat
Differential 1)
r1
1K
20 K
2K
Max. limitation of set temperature
r2
-59(1)°C
50(99)°C
50°C
Min. limitation of set temperature
r3
-60(0)°C
49(99)°C
-60°C
Adjustment of temperature indication
r4
-20 K
20 K
0.0 K
Min. ON-time
c1
0 min
15 min
0 min
Min. OFF-time
c2
0 min
15 min
0 min
c3
0%
99 %
0%
Compressor
2
Cut-in frequency on sensor fault )
Defrost
Defrost stop temperature
d2
0°C
25°C/OFF
OFF
Inter val between defrost star ts
d3
OFF
48 hour
8 hour
Max. defrost duration
d4
0 min
99 min
45 min
Delay of display view after defrost stop
d5
0 min
15 min
0 min
Defrost after strar t-up
d6
OFF
ON
OFF
Delay of outputsignal after star t-up
o1
0 min
15 min
0 min
Access code
o5
OFF
99
OFF
Refrigeration or heat (rE=refrigeration, HE = heat)
o7
rE
HE
rE
Miscellaneous
Fault code display
Fault in controller
Er
Disconnected room sensor
Er
Shor t-circuited room sensor
Er
( ) Values stated in parenthesis, are only possible if the setting o7 = HE.
1) Refrigeration (o7 = rE):
The relay closes when the room temperature exceeds the setting value and differential.
Heat (o7 = HE):
The relay closes when the room temperature drops to the setting value less the differential
2
) After start-up and throughout three days and nights this value is used by the controller.
Afterwards the controller is capable by itself to calculate the average value of previous cut-in
times.
PTC
For panel mounting
Weight: 150 g
Ordering
Type
Number
of digits
2
EKC 101
3
EKC 101
Application
Enclosed
Refrigeration /
heat
PTC sensor
type EKS 111
with
1.5 m cable
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Code no.
084B7620
084B7621
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EKC 201 and EKC 301
Application
The controller is a simple thermostat regulator in which some
refrigeration-technical functions have been integrated so that
it can replace a link-up of a group of thermostats and timers.
The controller has been specially designed for refrigeration
applications, but may of course also be used for other forms
of regulation where this is expedient.
The controller comes in several versions with a growing
number of functions - from the simple one with just one relay
to more advanced versions with three relays. All versions are
furthermore available with an alarm function. The number of
relays will then be increased by one.
The relays are used for controlling:
- compressor
- fan
- defrost
- alarm
One of the connections to the controller is a digital input. This
input will register the position of a connected switch and
depending on the functions you want to use, it will work, as
follows:
- activate a door alarm if the door remains open for longer
than allowed
- start a defrost
- or transmit the signal to the data communication
Advantages
• One electronic controller is able to replace several traditional controllers and defrost clocks
• Can be supplied for panel as well as DIN-rail mounting
• Temperatures, times, operating conditions, parameter
codes and alarm and fault codes can be read from the
display
• Three LEDs indicate the actual condition of the system:
- refrigeration
- defrost
- fan running
• Easy to re-establish factory setting
• In the event of error function, the actual parameter code can
be displayed
• All alarms are indicated bya the three LEDs fashing at once
Accessories
The controller can be extended by one insertion module if
the application warrants it.
The controller comes prepared with plug and terminals, so
all you have to do is to push the module into place.
If you want to change the
periodical defrost, so that it can
be performed at specific times of
the day, a clock module may be
fitted.
Up to six defrost cycles per day
can now be set. The module is
provided with battery backup.
(Type = EKA 172)
For
EKC 201
For
EKC 301
For
EKC 201
For
EKC 301
• Easy to install data communication at a later date
If it is required that operation is to
take place from a PC, a data
communication module must be
placed in the controller.
Two types of insertion modules
for data communication can be
had - they are LON modules with
FFT10 interface or RS485
interface.
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EKC 201/EKC 301
Controller application overview
Function
Application no.
1
2
3
4
Example:
Controller for application number 3 satisfies
requirement for
• room temperature control (thermostat) by pump down or
Room temperature control by pump
down or compressor star t/stop
compressor start/stop.
Natural defrost
• time controlled defrost using hot gas or electricity
Temperature controlled defrost with
electricity or hot gas
• fan motor control
Time-controlled defrost with
electricity or hot gas
Fan motor control
Application no. 1
Room temperature control by pump down.
Natural defrost on pump down.
Room temperature control by compressor start/stop.
Natural defrost on compressor stop.
Application no. 2
Temperature-controlled electric defrost.
Temperature-controlled hot gas defrost.
Room temperature control by compressor start/stop.
Application no. 3
Time-controlled electric defrost.
Time-controlled hot gas defrost.
Room temperature control by compressor
start/stop.
Time-controlled electric defrost.
Application no. 4
EKC 201/EKC 301
Temperature-controlled hot gas defrost.
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Room temperature control by compressor
start/stop.
7
Data
Supply
voltage
Power
consumption
Panel version
12 V a.c./d.c. +15/-15%
230 V +10/-15%, 50/60 Hz
(cer tain versions)
DIN version
230 V +10/-15%, 50/60 Hz
Panel version
2.5 VA
DIN version
5.0 VA
Transformer
12 V controllers must be connected to separate
transformer of min. 3 VA
Sensors
Pt 1000 ohm or
PTC (R25 = 1000 ohm)
Controller
sensor
system
Measuring range
-60 to +50°C
Accuracy
±0,5°C
-35 to +25°C;
±1°C
-60 to -35°C
+25 to +50°C
Display
LED, three digits (0.1°C read-off accuracy in
measuring range)
External
alarm
contact
Standard SPST contact (door alarm)
Electrical
connection
cable
Panel version
max. 1.5 mm2 multi-core
cable
DIN version
max. 2.5 mm2 multi-core
cable
Controller relay
SPST NO, Imax. = 6 A ohmic/
3 A AC 15* inductive
Defrost relay
SPST NO, Imax. = 6 A ohmic /
Fan motor relay
Alarm relay
SPST NC, Imax. = 4 A ohmic /
Imin. = 1 mA on 100 mV**
Relays
Ambient
Operation
temperature Transpor t
EKC 201 for panel mounting
EKC 301 for DIN-rail mounting
Weight: 150 g
Weight: 300 g
0 to +55°C
-40 to +70°C
Panel version
IP 5 4
DIN version
IP 20
Enclosure
Approvals
*
**
EU low-voltage directive and EMC stipulations on
CE marking are complied with.
LVD-tested to EN 60730-1 and EN 60730-2-9
EMC-tested to EN 50081-1 and EN 50082-1
AC 15 load to EN 60947-5-1
Gold plating ensures make function with small contact loads
Transformer
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EKC 201/EKC 301
Electrical connection
Panel version
Application 1
with alarm relay
DIN version
230 V
12 V
230 V
Application 2
with alarm relay
12 V
230 V
Application 3 and 4
with alarm relay
12 V
230 V
EKC 201/EKC 301
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Menu survey
Parameter
codes
Setting and read-off parameters
Controller
application no.
1
2
3
4
Min.
value
Max.
value
-60oC
50oC
Factory
setting 5)
Actual
setting
Normal operation
Temperature controller, Temperature
3 oC
Thermostat
Differential1)
r01
0.1 K
20 K
2K
Max. limitation of set temperature
r02
-59oC
50oC
50 oC
Min. limitation of set temperature
r03
-60oC
49oC
-60oC
Adjustment of temperature indication
r04
-20 K
20 K
0.0 K
Temperature unit (°C/°F)
r05
o
C
Alarm
Upper deviation (above temp. setting + differential 2)
A01
0K
50 K
10 K
Lower deviation (below temp. setting 2)
A02
-50 K
0K
-10 K
Temperature alarm delay
A03
0 min
90 min
30 min
Door alarm delay
A04
0 min
90 min
60 min
Compressor
Min. ON-time
c01
0 min
15 min
0 min
Min. OFF-time
c02
0 min
15 min
0 min
Cut-in frequency on sensor fault 3)
c03
0%
100 %
0%
Compressor stop at open door (yes/no)
c04
no
Defrost
Defrost method (EL/GAS)
d01
d02
EL
Interval between defrost starts
d03
OFF
48 hour
8 hour
d04
0 min
180 min
45 min
Defrost time delay (after power up)
d05
0 min
60 min
0 min
Drip-off time
d06
0 min
20 min
0 min
Fan start delay after defrost
d07
0 min
20 min
1 min
Fan start temperature
d08
-15oC
0 oC
-5 oC
Fan cut-in during defrost (yes/no)
d09
no
Defrost sensor (yes/no)
d10
yes
0 oC
25oC
6 oC
Temperature alarm delay after defrost
d11
0 min
199 min
90 min
Delay of display view after defrost stop
d12
0 min
15 min
1 min
Defrost at start-up
d13
no
yes
no
0 min
30 min
0 min
Fan
Fan stop on compressor cut-out (yes/no)
F01
Fan stop delay
F02
Fan stop at open door (yes/no)
F03
no
yes
Miscellaneous
Delay of output signal after start-up
o01
Digital input signals 4) (0 = not used, 1 = door alarm,
2 = defrost, 3 = bus, 4 = Main Switch)
o02
Access code
o05
Used sensor type (Pt / PTC)
o06
0s
600 s
5s
OFF
100
OFF
0
Pt
Real time clock (if fitted)
Six start times for defrost
t01- t06
All can be cut out by setting on OFF
0
23
OFF
Hour setting
t07
0 hour
23 hour
0 hour
Minute setting
t08
0 min
59 min
0 min
Fault code display
Alarm code display
Status code display
E1
Fault in controller
A1
High temperature alarm
S2
ON-time
E2
Disconnected room sensor
A2
Low temperature alarm
S3
OFF-time
E3
Short-circuited room sensor
A4
Door alarm
S4
Drip-off time
E4
Disconnected defrost sensor
S10
Refrigeration stopped
E5
Short-circuited defrost sensor
E6
Change battery + Check clock
1
) The compressor relay closes when the room temperature exceeds
the setting value and differential.
) Alarm is released and sensor failure is indicated, if the room
temperature reaches 5°C or more outside the setting range
–60° to +50°C.
3)
After start-up and throughout three days and nights this value is
used by the controller. Afterwards the controller is capable by itself to
calculate the average value of previous cut-in times.
4
) Function possibilities with SPST contact, connected to the
terminals 3 and 4 are the following:
Door alarm: If SPST is cut out, alarm signalling starts and the fan is
stopped, cf. A04 or F03.
Defrost: If SPST is cut in, defrost starts. (However, if d03 is not OFF,
defrost will during contact break down start with the programmed time
intervalles).
Bus: With installed communication card, the position of the SPST
contacts will be registered in the BUS system.
Main Switch: Start/stop control
5
) Factory settings are indicated for standard units. Other code
numbers have customized settings.
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Factory setting
If you need to return to the factory-set values, it can be done in this way:
- Cut out the supply voltage to the controller
- Keep both buttons depressed at the same time as you reconnect the supply
voltage
EKC 201/EKC 301
Ordering
EKC 201, Controllers for panel mounting
Code no.
Controller + Pt 1000 ohmsensor(s)
Controller + PTC sensor(s)
type EKS 111 with 1.5 m cable
type AKS 12 with 1.5 m cable
Application no.
12 V a.c./d.c.
230 V a.c.
12 V a.c. / d.c.
230 V a.c.
without
alarm relay
With alarm
relay
without
alarm relay
wiht alarm
relay
without
alarm relay
with
alarm relay
without
alarm relay
with alarm
relay
1
084B7025
084B7028
084B7031
084B7032
2
084B7026
084B7029
084B7605
084B7608
084B7611
084B7612
084B7606
084B7609
3
084B7027
084B7030
084B7607
084B7610
4
084B7027
084B7030
084B7607
084B7610
EKC 301, controllers for DIN-rail mounting
Code no.
Application no.
Controller + Pt 1000 ohm
sensor(s) type AKS 12
with 1.5 m cable
Controller + PTC
sensor(s) type EKS 111
with 1.5 m cable
230 V a.c.
230 V a.c.
Without
alarm relay
With alarm
relay
Without
alarm relay
With alarm
relay
1
084B7033
084B7036
084B7613
084B7616
2
084B7034
084B7037
084B7614
084B7617
3
084B7035
084B7038
084B7615
084B7618
4
084B7035
084B7038
084B7615
084B7618
Accessories
Plug-in modules
Code no.
Description
Type
EKC 201
EKC 301
12 V
230 V
084B7070
Real time clock
EKA 172
084B7070
Bus communication card FTT *)
EKA 173
084B7125
Bus communication card RS 485 *)
EKA 175
084B7126
*)
084B7071
084B7092
084B7126
084B7093
See installation guide for data communication, RC.8A.C
Transformer, 230/12 V
Code no. 084B7090
Further information!
Manual: RS.8A.V
EKC 201/EKC 301
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Media temperature control
EKC 361
Application
The controller and valve can be used where there are
stringent requirements to accurate temperature control in
connection with refrigeration.
E.g.:
• Cold room for fruits and food products
• Refrigerating systems
• Work premises in the food industry
• Process cooling of liquids
Advantages
• The temperature is kept within an accuracy of ±0.25°C or
better after a transient phenomenon
• The evaporator's temperature is kept as high as possible,
so that the air humidity is kept high and waste is limited
• A transient phenomenon can be controlled with the adaptive function. Select either:
- Fast building-up where underswings are allowed
- Not quite so fast building-up where underswings are less
pronounced
- Building-up without underswings
• PID regulation
• p0 limitation
Functions
• Modulating temperature control
• ON/OFF input for start/stop of regulation
• Alarm if the set alarm limits are exceeded
• Relay output for fan
• Relay output for solenoid valves
• Input signal that can displace the temperature reference
• Output signal that follows the temperature showing on the
display
System
Used as main valve is a PM3 unit, and the capacity determines the size. The valve is fitted with a pilot valve type CVQ
which is operated by the controller.
When refrigeration is stopped or when there is a power
failure the valve will be completely open, but if it is a requirement that the valve must be closed, a solenoid valve type
EVM-NC must also be mounted.
In the liquid line a solenoid valve is also mounted which
closes when the controller stops the refrigeration. The
controller operates the solenoid valves in the suction line
and liquid line with the same signal.
The example illustrates a flooded evaporator with a control
valve type REG, but when it is a dry evaporator, a TEV is
used.
Sensor Sair must be placed in the cold air current after the
evaporator.
Start/
stop
Extra options
• Temperature sensor input for monitoring
• PC operation
The controller can be provided with data communication,
so that it may be hooked up with other products in the
ADAP-KOOL® range of refrigeration controls. Operation,
monitoring and data collection can then be performed from
a PC - either in situ or at a service company.
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EKC 361
Function
Very accurate temperature control
With this system where controller, pilot valve and main valve
have been adapted for optimum use in the refrigerating
plant, the refrigerated products may be stored with temperature fluctuations of less than ±0.25°C.
High air humidity
As the evaporating temperature is constantly adapted to the
refrigeration needs and will always be as high as possible
with a very small temperature fluctuation, the relative air
humidity in the room will be kept at a maximum.
Drying-out of the products will in this way be reduced to a
minimum.
Temperature is quickly attained
With the built-in PID control and the possibility of choosing
between three transient phenomena, the controller can be
adapted to a kind of temperature performance that is optimum for this particular refrigerating plant.
• Fastest possible cooling
• Cooling with less underswing
• Cooling where underswing is unwanted.
Regulation
The controller receives signals from room sensor Sair. This
room sensor must be placed at the air outlet from the evaporator to obtain the best possible regulation. The controller
sees to it that the required room temperature is maintained.
Built-in between the controller and the actuator is a so-called
inner control loop which constantly checks the temperature
(pressure) in the actuator’s pressure vessel. In this way a
very stable control system is obtained.
If there is a deviation between the required and the registered temperature the controller will immediately send more
or fewer pulses to the actuator to counteract the error. A
change of the number of pulses will act on the temperature
and hence the pressure in the pressure vessel. As the
charging pressure and the evaporating pressure po follow
each other, a changed charging pressure will produce the
effect that the valve’s opening degree is also changed. The
PM/CVQ system maintains the pressure in the evaporator
whatever pressure changes there may be on the suction side
(on the PM valve’s outlet).
Evaporating pressure limitation (p0 limitation)
The inner control loop mentioned above also causes the
evaporating pressure to stay within a fixed limit. In this way
the system is safeguarded against a too low supply air
temperature.
It offers the following advantages:
- High-temperature systems can be connected to lowtemperature compressor units
- Protection against icing on evaporator
- Frost protection of liquid coolers
EKC 361
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©
Danfoss
The allowed temperature in the actuator determines the evaporating pressure
Actuator temperature
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Menu survey
Data
Function
Para- Min.
meter
Supply voltage
24 V a.c. +/-15% 50/60 Hz, 80 VA
(the supply voltage is galvanically separated
from the input and output signals)
Power consumption
Controller
Actuator
5 VA
75 VA
Current signal
4-20 mA or 0-20 mA
Max.
Normal display
Shows the temperature at the selected sensor
-
°C
Reference
Set the required room temperature
-
-70°C
160°C
Temperature unit
r05
°C
°F
Input signal’s temperature influence
r06
-50 K
50 K
Correction of the signal from Sair
r09
-10,0 K 10,0 K
Correction of the signal from Saux
r10
Star t/stop of refrigeration
r12
Input signal
Digital input from external contact function
Sensor input
2 pcs. Pt 1000 ohm
-10,0 K 10,0 K
Output signal
Current signal
OFF
Relay output
2 pcs. SPST
Alarm relay
1 pcs. SPST
On
Alarm
Upper deviation (above the temperature setting)
A01
0
50 K
Lower deviation (below the temperature setting)
A02
0
50 K
Alarm’s time delay
A03
0
180 min
Actuator max. temperature
n01
41°C
140°C
Actuator min. temperature
n02
4-20 mA or 0-20 mA
Max. load: 200 ohm
AC-1: 4 A (ohmic)
AC-15: 3 A (inductive)
Input
Temperature signal
from sensor in the
actuator
Output
Pulsating 24 V a.c. to
actuator
Actuator
Regulating parameters
40°C
139°C
Actuator type (1=CVQ-1 to 5 bar, 2=CVQ 0 to 6 bar,
n03
3=CVQ 1.7 to 8 bar, 4= CVMQ, 5=KVQ)
1
5
Data
communication
Possible to connect a data communication
module
P: Amplification factor Kp
n04
0,5
20
Ambient
temperature
During operation
During transpor t
I: Integration time Tn (600 = off)
n05
60 s
600 s
Enclosure
IP 20
D: Differentiation time Td (0 = off)
n06
0s
60 s
Weight
300 g
Mounting
DIN rail
Display
LED, 3 digits
Transient phenomenon
0: Ordinary control
1: Underswing minimised
2: No underswing
n07
0
2
Terminals
max. 2.5 mm2 multicore
Approvals
EU Low Voltage Directive and EMC
demands re CE-marking complied with.
LVD-tested acc. to EN 60730-1 and EN
60730-2-9
EMC-tested acc. to EN50081-1 and EN
50082-2
Miscellaneous
Controller's address
o03*
1
60
ON/OFF switch (service-pin message)
o04*
-
-
Define output signal of analog output:
0: no signal, 1: 4 - 20 mA, 2: 0 - 20 mA
o09
0
2
Define input signal of analog input
0: no signal, 1: 4 - 20 mA, 2: 0 - 20 mA
o10
0
2
Language (0=english, 1=German, 2=French,
3=Danish, 4=Spanish and 6=Swedish.)When you
change the setting to an other language you must
activate o04 before "the new language" can be
visible from the AKM program.
011*
0
6
Set supply voltage frequency
o12
50 Hz
60 Hz
Select sensor signal for display showing
o17
Au
Air
(Setting for the function o09)
Set the temperature value where the output signal
must be minimum (0 or 4 mA)
o27
-70°C
160°C
must be maximum (20 mA)
o28
-70°C
160°C
-10 - 55°C
-40 - 70°C
Service
Read temperature at the Sair sensor
u01
°C
Read regulation reference
u02
°C
Read temperature at the Saux sensor
u03
°C
Read valve's actuator temperature
u04
°C
Type
Function
Code No.
Read reference of the valve's actuator temperature
u05
°C
EKC 361
Evaporating pressure controller
084B7060
Read value of external current signal
u06
mA
Read value of transmitted current signal
u08
mA
EKA 173
Data communication module
(accessories), (FTT 10 module)
084B7092
Read status of input DI
u1 0
on/off
EKA 174
(accessories), (RS 485 module)
with galvanic separation
084B7124
*) This setting will only be possible if a data communication module has been
installed in the controller.
14
RK.0Y.G2.02
© Danfoss
Ordering
12/2002
EKC 361
Connections
Data communication
CVQ
Manual: RS.8A.E
EKC 361
RK.0Y.G2.02
©
Danfoss
12/2002
15
EKC 367
Application
Controller and valve are used where there are high requirements to refrigeration of unpacked food products, e.g.:
• Delicatessen appliances
• Cold rooms for meat products
• Cold rooms for fruits and vegetables
• Containers
• Air conditioning plant
System
A KVQ valve is used. The capacity determines the size of it.
When refrigeration is stopped or there is power failure, the
valve will be completely open.
A solenoid valve is mounted in the liquid line which is to
close when the controller stops refrigeration.
Sensor Sair must be placed in the cold air current after the
evaporator.
Advantages
• Wastage is reduced because the air humidity around the
products is kept as high as possible.
• The temperature is kept within an accuracy of ±0.25°C or
better after a transient phenomenon
• A transient phenomenon can be controlled with the adaptive function so that temperature variations is kept on a
minimum.
• Defrost sensor, so that the defrost time will be as short as
possible.
• Frost protection
• PID regulation
Functions
• Modulating temperature control
• Defrost function: electricity, hotgas or natural
LED's on front panel
• Relay outputs for defrost function, solenoid valve, fan and
alarmgiver
KVQ - signal
• Input signal that can displace the temperature reference
Refrigeration
Fan
Defrost
16
RK.0Y.G2.02
© Danfoss
12/2002
EKC 367
Function
Very accurate temperature control
With this system where controller and valve have been
adapted for optimum use in the refrigerating plant, the
refrigerated products may be stored with temperature
fluctuations of less than ±0.5°C.
High air humidity
As the evaporating temperature is constantly adapted to the
refrigeration needs and will always be as high as possible
with very small temperature fluctuations, the relative air
humidity in the room will be kept at a maximum.
Drying-out of products will therefore be reduced to a minimum.
Temperature is quickly attained
With the built-in PID control and the possibility of choosing
between three transient phenomena, the controller can be
adapted to a kind of temperature performance that is optimum for this particular refrigerating plant.
• Fastest possible cooling
• Cooling with less underswing
• Cooling where underswing is unwanted
Regulation
The controller receives signals from room sensor Sair. This
room sensor must be placed at the air outlet from the evaporator to obtain the best possible regulation. The controller
sees to it that the required room temperature is maintained.
Built-in between the controller and the actuator is a so-called
inner control loop which constantly checks the temperature
(pressure) in the actuator’s pressure vessel. In this way a
very stable control system is obtained.
If there is a deviation between the required and the registered temperature the controller will immediately send more
or fewer pulses to the actuator to counteract the error. A
change of the number of pulses will act on the temperature
and hence the pressure in the pressure vessel. The charging
pressure and evaporating pressure p0 go hand in hand. A
changed charging pressure will produce the effect that the
valve’s opening degree will change.
The pressure in the evaporator is maintained whatever
pressure changes there may be on the suction side (at the
KVQ valve’s outlet).
Actuator temperature
Evaporating pressure limitation (p0 limitation)
The inner control loop mentioned above also causes the
evaporating pressure to be limited in the downward direction.
In this way the system is safeguarded against a too low
supply air temperature (frost protection).
It offers the following advantages:
- High-temperature systems can be connected to lowtemperature compressor units
- Protection against icing on evaporator
EKC 367
RK.0Y.G2.02
©
Danfoss
12/2002
17
Menu survey
Data
Function
Para- Min.
meter
Max.
24 V a.c. +/-15% 50/60 Hz, 80 VA
Supply voltage
Normal display
Shows the temperature at the room sensor
-
°C
Give the lower button a brief push to see the
temperature at the defrost sensor
-
°C
Power consumption
Reference
Set the required room temperature
-
-70°C
160°C
Input signal
Temperature unit
r05
°C
°F
External contribution to the reference
r06
-50 K
50 K
Correction of the signal from Sair
r09
-10,0 K 10,0 K
Correction of the signal from Sdef
r11
-10,0 K 10,0 K
Star t/stop of refrigeration
r12
OFF
Controller
Actuator
5 VA
35 VA (KVQ)
75 VA (CVQ)
Voltage signal
0-10 V or 2-10 V
Shor t-circuit (pulse signal) of 21-22 will star t a
defrost
On
Alarm
A01
0
50 K
A02
0
50 K
A03
0
180 min
Sensor input
2 pcs. Pt 1000 ohm
Relay output
3 pcs. SPST
Alarm relay
1 pcs. SPST
Input
Temperature signal from
sensor in the actuator
Output
actuator
Actuator
Defrost
Defrost method (ELECTRICITY/GAS)
d01
off
GAS
d02
0
25°C
AC-1: 4 A (ohmic)
Data
communication
module
d04
0
180 min
Drip-off time
d06
0
20 min
Ambient
temperature
During operation
During transpor t
IP 20
-10 - 55°C
-40 - 70°C
Delay for fan star t or defrost
d07
0
20 min
Enclosure
Fan star t temperature
d08
-15
0°C
Weight
300 g
Fan cut in during defrost (yes/no)
d09
no
yes
Mounting
DIN rail
Delay for temperature alarm after defrost
d11
0
199 min
Display
LED, 3-digits
Terminals
Approvals
EU Low Voltage Directive and EMC demands
re CE-marking complied with.
60730-2-9
50082-2
Actuator max. temperature
n01
41°C
140°C
Actuator min. temperature
n02
40°C
139°C
Actuator type (1=CVQ-1 to 5 bar, 2=CVQ 0 to 6 bar,
n03
3=CVQ 1.7 to 8 bar, 4= CVMQ, 5=KVQ)
1
5
n04
0,5
20
I: Integration time Tn (600 = off)
n05
60 s
600 s
n06
0s
60 s
Transient phenomenon
0: Fast cooling
1: Cooling with less underswing
2: Cooling where underswing is unwanted
n07
0
2
Star t-up time after hotgas defrost
n08
5 min
20 min
o03*
1
60
o04*
-
-
Define input signal of analog input
0: no signal
1: 0 - 10 V
2: 2 - 10 V
o10
0
2
Language (0=english, 1=German, 2=French,
3=Danish, 4=Spanish, 5=Italian, 6=Swedish)
When you change the setting to an other language
you must activate o04 before "the new language"
can be visible from the AKM program.
011*
0
6
o12
50 Hz
60 Hz
Miscellaneous
Ordering
Service
Read temperature at the Sair sensor
u01
°C
Read regulation reference
u0 2
°C
Read valve's actuator temperature
u04
°C
Read reference of the valve's actuator temperature
u05
°C
Read value of external voltagt signal
u07
V
Read temperature at the Sdef sensor
u09
°C
u10
on/off
Read duration of defrost
u11
m
Type
Function
Code No.
EKC 367
Evaporating pressure controller
084B7083
EKA 173
084B7092
EKA 175
084B7093
EKA 174
084B7124
18
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© Danfoss
12/2002
EKC 367
Connections
Data communication
KVQ/
CVQ/
CVMQ
Manual: RS.8A.F
EKC 367
RK.0Y.G2.02
©
Danfoss
12/2002
19
Control unit for refrigeration appliances
EKC 414A
Application
The controller is a complete control unit for refrigeration
appliances with integrated refrigeration-technical functions
capable of replacing a setup of thermostats and timers.
The relays are used for operating:
- Compressor
- Fan
- defrost
- Alarm
- Light
The controller can operate one evaporator.
The intended placing of the controller is “on/near the
refrigeration appliance” and the controller is therefore
provided with plugs at the sensor connection points. All
sensors used must therefore be fitted with a belonging
plug.
Operation
The controller comes without operating buttons on the front
panel, and it will require no operation once it has been set
and started up.
When the controller is operated, it can be done in one of the
following ways:
• Connection of an external display with operating buttons
- The display will currently show measurements and
settings in the menu system
- In case of malfunction the relevant error code will be
shown on the display
- Four light-emitting diodes will show the system’s actual
function:
› refrigeration
› power for the AKV valve
› defrost
› fan operating
› when there is an alarm the three LED’s will flash
• Data communication
The controller can be hooked up with other products in the
series of ADAP-KOOL® refrigeration controls. The
operation, monitoring and data collection can then be
performed from a PC – either on site or at a service
company.
Digital input
A digital input can be defined for one of the following applications:
Door alarm
Defrost start
Night operation
Start/stop of regulation
Joint defrost start/stop with a master/slave function
Customer display
If the temperature in the appliance is to be visible to, say,
customers, a display can be mounted.
ON function
The expansion valve closes when the signal at the 230V
input is removed. In this way it is ensured that the expansion
valve will not charge the evaporator when the compressor
has stopped.
20
RK.0Y.G2.02
©
Danfoss
12/2002
EKC 414A
Function
Liquid supply
The supply of liquid is controlled on the basis of signals from
the pressure transmitter, temperature sensor S2 and the air
temperature. The sensors create a signal so that the
superheat is continuously kept at a minimum whatever the
operating conditions.
The AKV valve functions both as expansion valve and
solenoid valve. The valve opens and closes based on
signals from the controller.
Temperature control
The temperature is controlled on the basis of signals from
one or two temperature sensors. If there is only one sensor it
may optionally be placed in the air before or after the evaporator. If there are two sensors, one must be placed before
and one after the evaporator. With a setting it is subsequently
defined how large an influence the individual sensor is to
have on the control. The actual temperature control can take
place in two ways: as an ordinary ON/OFF regulation with a
belonging differential, or as a modulating control there the
temperature variation will not be nearly as great as in ON/
OFF control. There is however a limit to the use of them as a
modulating control can only be used in central plant. In a
decentralised plant the thermostat function with ON/OFF
control should be selected.
In a central plant the thermostat function may either be
selected for ON/OFF control or modulating control.
On / Off control
Defrost
With a simple function defrost can be started x times per day
and night. But the controller may also receive a signal from a
defrost clock or from another unit via the data communication, so that defrost will take place at defined times of the day
or night.
An on-going defrost can be stopped based on temperature,
normally the one measured with the S5 sensor, or it may be
stopped based on time. A combination with stop based on
temperature and with the time factor as a precautionary
measure is also a possibility.
Modulating control
EKC 414A
RK.0Y.G2.02
©
Danfoss
12/2002
21
Menu survey
Function
Para- Min.
meter
Max.
Fan
Normal display
Shows the temperature at the selected sensor
Define view in O17
-
°C
If you wish to see the temperature at the defrost
sensor, give the lower button a brief push (1 sec.)
-
°C
Thermostat
Fan stop on compressor cut out
F01
no
yes
Delayed fan stop when compressor is cut out
F02
0 min
30 min
Safety function. The fan stops if the S5 temperature
F04
reaches this value
-50.0
50.0/off
Miscellaneous
Delay of output signal after star t-up
o01
0 sec.
600 sec
o02
OFF
5
990
Differential
r01
0.1 K
10.0 K
Max. limitation of thermostat’s setting temperature
r02
-49°C
50°C
Min. limitation of thermostat’s setting temperature
r03
-50°C
49°C
Define digital input signal (DI:
OFF=not used, 1=Door alarm, 2=defrost star t,
3=Night operation, 4=External star t/stop, 5 =
Coordinated defrost with cable connections
°F
Network address (range = 0-60)
o03
0
o04
OFF
ON
Access code
o05
OFF
100
Used sensor type for S3, S4 and S5 (Pt / PTC)
o06
Pt
Ptc
Language: 0=English, 1=German, 2=French,
3=Danish, 4=Spanish and 5=Italian.
011
0
5
Temperature unit (°C/°F)
r05
°C
Correction of signal from S4 (Sout)
r09
-10.0 K 10.0 K
Correction of signal from S3 (Sin)
r10
-10.0 K 10.0 K
Star t/Stop of refrigeration
r12
OFF
Reference displacement during night operation
r13
-20.0 K 20.0 K
ON
Define thermostat function
1=ON/OFF, 2=Modulating
r14
1
2
Definition and weighting, if applicable, of thermostat
sensors
r15
100%=S4 (Sout), 0%=S3 (Sin).
The thermostat temperature can be seen in U17
0%
100%
Time between melt periods
r16
0h
10 h
Duration of melt periods
r17
0 min.
10 min.
Alarm time delay
A03
0 min.
120 min
Door alarm time delay
A04
0 min.
90 min.
Time delay during cooling
A12
0 min.
240 min
High alarm limit
A13
-50°C
50°C
Low alarm limit
A14
-50°C
50°C
Min. ON-time
c01
0 min
50 min
Min. OFF-time
c02
0 min
50 min
25°C
Alarm
o12
50 Hz
60 Hz
Define digitalt output signal (DO:
0=not used
Coordinated defrost with cable connections:
1=Master, 2= Slave
o13
0
2
Max. standby time after coordinated defrost
o16
1 min
30 min
Display S4 % (Sout)
0%=S3 (Sin)
100%=S4 (Sout)
o17
0%
100%
OFF
7
d02
0
Interval between defrost star ts
d03
OFF
48 h
Manual control of outputs:
OFF=No override
1: Compressor reay is ON
2: Defrost relay is ON
3: Fan relay is ON
o18
4: Alarm relay is OFF
5: DO output is ON
6: AKV output is ON
7: Light relay is ON
When manual control is terminated, the setting must
be changed to OFF
d04
0
180 min
Pressure transmitter working range – min. value
020
-1 bar
5 bar
Time displacement of defrost cut-ins during star t-up d05
0
240 min
Pressure transmitter working range – max. value
021
6 bar
36 bar
AKV-ON definition
When the ON input is cut out refrigeration is
stopped.
Here you define how the fan relay and the alarm
function are to act:
1 = Fan relay = ON, alarm monitoring active
2 = Fan relay = OFF, alarm monitoring active
3 = Fan relay = OFF, no alarm monitoring
4 = Fan relay = ON, no alarm monitoring
o29
1
4
Refrigerant setting
1=R12. 2=R22. 3=R134a. 4=R502. 5=R717.
6=R13. 7=R13b1. 8=R23. 9=R500. 10=R503.
11=R114. 12=R142b. 13=User defined. 14=R32.
15=R227. 16=R401A. 17=R507. 18=R402A.
19=R404A. 20=R407C. 21=R407A. 22=R407B.
23=R410A. 24=R170. 25=R290. 26=R600.
27=R600a. 28=R744. 29=R1270. 30=R417A
o30
0
30
Compressor
Defrost
Drip-off time
d06
0
60 min
Fan star t delay after defrost
d07
0
60 min
Fan star t temperature
d08
-15
0°C
Fan cut-in during defrost (yes/no)
d09
no
yes
Defrost sensor
0=S4 (Sout) , 1=S5 (Sdef), 2=non. Stop on time
d10
0
2
Defrost at power up
d13
no
yes
Max. value of superheat reference
n09
3.0 K
15.0 K
Min. value of superheat reference
n10
3.0 K
10.0 K
MOP temperature
n11
-50.0°C 15°C/off
AKV valve’s time period
Should only be changed to OFF by trained staff
n13
3 sec.
6 sec.
Stability factor for superheat control.
Changes should only be made by trained staff
n18
0
10
Forced closing.. AKV valve shut in pos. ON
n36
OFF
ON
Injection control function
22
RK.0Y.G2.02
© Danfoss
12/2002
EKC 414A
Data
Supply
voltage
230 V +10/-15%, 50/60 Hz, 5 VA
Sensors
Pt 1000 ohm for refrigerant temperatures
Pt 1000 ohm or PTC (R25 = 1000 ohm) for air
temperatures
Controller
sensor
system
Display/
operation
1 digital
input
Measuring range
-60 to +50°C
Accuracy
±0.5°C
for sensor temperature =
-35 to +50°C
The controller has no display or operating buttons
on front panel.
Operation takes place via a separate, connected
display or via data communication
It is possible to connect two displays with 0.1%
reading accuracy in the measuring range:
EKA 161, LED, three digits
EKA 162, LED, three digits, two operating buttons
If a contact function is connected, it can be used
for door alarm, defrost star t, night operation or
star t/stop of the regulation
If other EKC 414 units are connected, coordinated
defrost can be performed via cable connections
1 digital
output
May in conjunction with the digital input be used for
coordinated defrost via cable connections
230 V input
0 V: regulation stopped. The compressor relay, the
defrost relay, the fan relay and the light relay are
cut out.
230 V a.c.: regulation
Sensor
connection
Sensors with AMP plug
AKV
connection
Max. 1
Relays
Compressor relay
Defrost relay
Fan motor relay
Light relay
Alarm relay
SPDT, Imax. = 4 A ohmic / 3 A
AC 15* inductive
Ambient
During operation
temperature During transpor t
Description
Refrigeration control controller with
plug connections and data
communication
Type
EKC 414A
Code no.
084B8002
Manual: RS.8C.K
0 to +55°C
-40 to +70°C
Mounting
On DIN rail or on wall
Density
IP 20
Weight
0.4 kg
Approvals
EU Low Voltage Directive and EMC demands re
CE-marking complied with.
LVD-tested acc. to EN 60730-1 and EN 60730-2-9
EMC-tested acc. to EN 50081-1 and EN 50082-2
EKC 414A
Ordering
RK.0Y.G2.02
©
Danfoss
12/2002
23
Control of industrial evaporator
EKC 315A
Application
The controller and valve can be used where there are
requirements to accurate control fo superheat and temperature in connection with refrigeration.
E.g.:
• Cold store (air coolers)
• Processing plant (water chillers)
• A/C plant
Advantages
• The evaporator is charged optimally – even when there are
great variations of load and suction pressure
• Energy savings – the adaptive regulation of the refrigerant
injection ensures optimum utilisation of the evaporator and
hence a high suction pressure
• Exact temperature control – the combination of adaptive
evaporator and temperature control ensures great temperature accuracy for the media
• The superheating is regulated to the lowest possible value
at the same time as the media temperature is controlled by
the thermostat function
Functions
• Regulation of superheat
• Temperature control
• MOP function
• ON/OFF input for start/stop of regulation
• Input signal that can displace the superheat reference or
the temperature reference
• Relay output for solenoid valve
• PID regulation
• Output signal following the temperature showing in the
display
System
The superheat in the evaporator is controlled by one pressure transmitter P and one temperature sensor S2.
The valve can be one of the following types:
• TQ (PHTQ, TEAQ)
• AKV (AKVA)
TQ is a modulating valve, and when these is used a solenoid
valve must also be used in the liquid line.
AKV is a pulsating valve.
Where the AKV valve is used it also functions as solenoid
valve.
Temperature control is performed based on a signal from
temperature sensor S3 which is placed in the air current
before the evaporator. Temperature control is in the shape of
an ON/OFF thermostat that shuts off the liquid flow in the
liquid line, either via the solenoid valve in TQ applications or
directly when AKV is used.
24
RK.0Y.G2.02
©
Danfoss
Water chiller application
12/2002
Air cooler applicaiton
EKC 315A
Function
Superheat function
You may choose between two kinds of superheat, either:
• Adaptive superheat or
• Load-defined superheat
MOP
The MOP function limits the valve’s opening degree as long
as the evaporating pressure is higher than the set MOP
value.
Override function
Via the analog input a displacement can be made of the
temperature reference or of the superheat reference. The
signal can either be a 0-20 mA signal or a 4-20 mA signal.
The reference can be dsplaced in positive or negative
direction.
External start/stop of regulation
The controller can be started and stopped externally via a
contact function connected to input terminals 1 and 2.
Regulation is stopped when the connection is interrupted.
The function must be used when the compressor is stopped.
The controller then closes the solenoid valve so that the
evaporator is not charged with refrigerant.
Relays
The relay for the solenoid valve will operate when refrigeration is required. The relay for the alarm function works in
such a way thatr the contact is cut in in alarm situations and
when the controller is de-energised.
Modulating/pulsating expansion valve
In 1:1 systems (one evaporator, one compressor and one
condenser) with small refrigerant charge TQ is recommended.
In a system with an AKV valve the capacity can be distributed
by up to three valves if slave modules are mounted. The
controller will displace the opening time of the AKV valves,
so that they will not pulsate at the same time.
Used as slave module is a controller of the type EKC 347.
Analog output
The controller is provided with an analog current output
which can be set to either 0-20 mA or 4-20 mA. The signal
will either follow the superheat, the valves opening degree
or the air temperature.
EKC 315A
RK.0Y.G2.02
©
Danfoss
12/2002
25
Menu survey
Function
Para- Min.
meter
Max.
Normal display
Shows the actual superheat/opening degree/temp.
Define view in O17
-
K
If you wish to see the expansion valve’s actual
opening degree, give the lower button a brief push
(1s). Define view in O17.
-
%
Reference
Define input signal on the analoge input AIA:
0: no signal,
1: Temperature setpoint. 0-20 mA
2: Temperature setpoint. 4-20 mA
3: Displacement of superheat reference. 0-20 mA
4: Displacement of superheat reference. 4-20 mA
o10
0
4
o12
50 Hz
60 Hz
Select display for ”normal picture”
1: Superheat
2: Valve’s opening degree
3: Air temperature
o17
1
3
o18
off
3
Set the requirede set point
-
-60°C
50°C
Differential
r01
0.1 K
10.0 K
Units (0=°C+bar /1=°F+psig)
r05
0
1
External contribution to the reference
r06
-50 K
50 K
Correction of signal from S2
r09
-1.0 K
1.0 K
Correction of signal from S3
r10
-10.0 K 10.0 K
OFF: no manual control
1: Relay for solenoid valve: select ON
2: AKV/A output: select ON
3: Alarm relay activated (cut out)
Star t / stop of refrigeration
r12
OFF
Working range for pressure transmitter – min. value
Define thermostat function
(0= no thermostat function, 1=On/off thermostat)
On
r14
0
1
A01
0K
50 K
A02
0K
50 K
A03
0 min.
90 min.
n04
0,5
20
I: Integration time T
n05
30 s
600 s
n06
0s
90 s
Max. value of superheat reference
n09
2K
15 K
12 K
Alarm
Min. value of superheat reference
n10
1K
MOP
n11
0.0 bar 20 bar
Period time (only when AKV/A valve is used)
n13
3s
10 s
Stability factor for superheat control.
n18
0
10
Damping of amplification around reference value
Amplification factor for superheat
Definition of superheat control
1=MSS, 2=LOADAP
n19
n20
n21
0.2
0.0
1
1.0
10.0
2
Value of min. superheat reference for loads under
10%
n22
1
15
Standby temperature when valve closed (TQ valve
only)
n26
-15 K
20 K
Standby temperature when valve open (TQ valve
only)
n27
5K
30 K
Max. opening degree
n32
0
10
Controller’s address
o03*
1
60
o04*
-
-
Define valve and output signal:
0: Off
1: TQ. AO: 0-20 mA
2: TQ. AO: 4-20 mA
3: AKV, AO: 0-20 m
4: AKV, AO: 4-20 mA
5: AKV, AO: EKC 347-SLAVE
o09
0
5
o20
-1 bar
18 bar
Working range for pressure transmitter – max. value o21
-1 bar
18 bar
Set the temperature value or opening degree where o27
the output signal must be minimum (0 or 4 mA)
-70°C
160°C
must be maximum (20 mA)
o28
-70°C
160°C
Refrigerant setting
1=R12. 2=R22. 3=R134a. 4=R502. 5=R717.
6=R13. 7=R13b1. 8=R23. 9=R500. 10=R503.
11=R114. 12=R142b. 13=User defined. 14=R32.
15=R227. 16=R401A. 17=R507. 18=R402A.
19=R404A. 20=R407C. 21=R407A. 22=R407B.
23=R410A. 24=R170. 25=R290. 26=R600.
27=R600a. 28=R744. 29=R1270.
o30
0
29
Service
TQ valve's actuator temperature
u04
Reference of the valve's actuator temperature
u05
°C
°C
Analog input AIB (18-19)
u06
mA
Analog output AO (2-5)
u08
mA
u10
on/off
Thermostat cut-in time
u18
min.
Temperature at S2 sensor
u20
°C
Superheat
u21
K
Superheat reference
u22
K
Read AKV valve’s opening degree
u24
%
Read evaporating pressure
u25
bar
Read evaporating temperature
u26
°C
Temperature at S3 sensor
u27
°C
Temperature reference
u28
°C
Read signal at pressure transmitter input
u29
mA
Miscellaneous
26
RK.0Y.G2.02
© Danfoss
12/2002
EKC 315A
Data
Supply voltage
24 V a.c. +/-15% 50/60 Hz, 80 VA
(the supply voltage is galvanically separated from
the input and output signals)
Power
consumption
Controller
TQ actuator
AK coil
5 VA
75 VA
55 VA
Current signal
4-20 mA or 0-20 mA
Input signal
Pressure
transmitter
4-20 mA from AKS 33
Sensor input
Output signal
2 pcs. Pt 1000 ohm
Current signal
4-20 mA or 0-20 mA
Load
Max. 200 ohm
Relay output
1 pcs. SPST
Alarm relay
1 pcs. SPST
AC-1: 4 A (ohmic)
Input
Temperature signal from
sensor in the TQ actuator
Output
actuator
Actuator
Data
communication
module
Ambient
temperature
During operation
During transpor t
Enclosure
IP 20
-10 - 55°C
-40 - 70°C
Weight
300 g
Mounting
DIN rail
Display
LED, 3 digits
Terminals
Approvals
EU Low Voltage Directive and EMC demands re
CE-marking complied with.
LVD-tested acc. to EN 60730-1 and EN 60730-2-9
EMC-tested acc. to EN50081-1 and EN 50082-2
Ordering
Type
Function
Code no.
EKC 315A
Superheat controller
084B7086
EKA 173
084B7092
EKA 175
(accessories), (RS 485 modul)
084B7093
EKA 174
084B7124
Data communication
Manual: RS.8C.S
EKC 315A
RK.0Y.G2.02
©
Danfoss
12/2002
27
Capacity control
EKC 331
Application
The controller is used for capacity regulation of compressors
or condensers in small refrigerating systems.
Advantages
• Patented neutral zone regulation
• Sequential or cyclic operation
Functions
• Regulation
Regulation with up to four relay outputs can be carried out.
Regulation takes place with a set reference which is
compared to a signal from a pressure transmitter.
• Relay module
It is possible to use the controller as relay module, so that
the relays are cut in or out by means of an external voltage
signal.
• Alarmfunction
A relay becomes activated when the set alarm limits are
exceeded.
• Digital input
The digital input can be used for:
- night operation where the suction pressure is raised
- heat recovery where the condensing pressure is raised
- external start/stop of the regulation.
Function
Capacity regulation
The cut-in capacity is controlled by signals from the connected pressure transmitter and the set reference.
Outside the reference a neutral zone is set where the
capacity will neither be cut in nor out.
Outside the neutral zone (in the hatched areas named +zone
and -zone) the capacity will be cut in or out if the regulation
registers a change of pressure “away” from the neutral zone.
Cutin and cutout will take place with the set time delays.
If the pressure however “approaches” the neutral zone, the
controller will make no changes of the cut-in capacity.
The size of the +zone and -zone is identical and defined to
be constantly 0.7 times the set value of the neutral zone.
If regulation takes place outside the hatched area (named
++zone and --zone), changes of the cut-in capacity will occur
somewhat faster than if it were in the hatched area. The set
time delays will here be reduced by factor 0.3.
Cutin of steps can be defined for either sequential or cyclic
operation.
28
RK.0Y.G2.02
©
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12/2002
EKC 331
Menu survey
Data
Function
Para- Min.
meter
Max.
Normal display
Shows the signal from the pressure transmitter
-
bar
Supply voltage
230 V a.c. +/-15% 50/60 Hz, 5 VA
Input signal
Pressure transmitter*) with 4-20 mA or
voltage signal (0 - 5 V, 0 - 10 V
or 5 - 10 V)
Digital input to external contact function
Reference
Set the regulation’s pressure reference
-
-1 bar 40 bar
Neutral zone
r01
0.1 bar 5 bar
Max. limitation of pressure setting
r02
-1 bar 40 bar
Min. limitation of pressure setting
r03
-1 bar 40 bar
Select unit (0=bar / 1=psig)
r05
0
Reference displacement by signal at DI input
r13
Upper alarm limit (absolute value)
A10
Lower alarm limit (absolute value)
A11
-1 bar 40 bar
Alarm's time delay
A03
1s
Relay output
4 pcs. SPST
AC-1: 4 A (ohmic)
Alarmrelay
1 pcs. SPST
AC-1: 4 A (ohmic)
-5 bar 5 bar
Data
communication
module
-1 bar 40 bar
Ambient
temperature
During operation
During transpor t
Enclosure
IP 20
1
Alarm
300 s
Capacity
Min. ON time for relays
c01
0s
900 s
Time delay for cutin of relays
c05
5s
900 s
Time delay for cutout of relays
c06
5s
900 s
Min. time period between cutins of same relay
c07
0s
900 s
Definition of regulation mode
1: Sequential
2: Cyclic
3: Cyclic with unloaders
c08
1
3
If the regulation mode 3 has been selected, the relays
for the unloaders can be defined to:
c09
0: Cut in when more capacity is required
1: Cut out when more capacity is required
0
1
-10 - 55°C
-40 - 70°C
Weight
300 g
Mounting
DIN rail
Display
LED, 3 digits
Terminals
max. 2,5 mm2 multicore
Approvals
EU Low voltage Directive and EMC
demands re CE-marking complied with.
60730-2-9
50082-2
Miscellaneous
Controllers address
o03*
1
60
On/off switch (ser vice-pin message)
o04*
-
-
Access code
o05
off(-1) 100
Define input signal and application:
0: no signal / regulation stopped
1: 4-20 mA pressure transmitter - compressor reg.
2: 4-20 mA pressure transmitter - condenser reg.
3: AKS 32R pressure transmitter - compressor reg.
4: AKS 32R pressure transmitter - condenser reg.
5: 0 - 10 V relay module
o10
0
7
Language (0=english, 3=danish). When you change
this setting you must also activate O04.
011*
0
3
o12
50 Hz 60 Hz
Manual operation with “x” relays
o18
0
4
Define number of relay outputs
o19
1
4
Pressure transmitter’s working range - min. value
o20
-1 bar 0 bar
Pressure transmitter’s working range - max. value
o21
1 bar
40 bar
Define DI input:
0: not used
1: Contact displaces reference
2: Contact star ts and stops regulation
o22
0
2
Operating hours of relay 1 (value times 10)
o23
0h
999 h
o24
0h
999 h
o25
0h
999 h
o26
0h
999 h
*) This setting will only be possible if a data communication moduel has been
Ordering
Type
Data communication
Function
Code No.
EKC 331
Capacity controller
084B7104
EKA 173
084B7092
EKA 175
084B7093
EKC 331
RK.0Y.G2.02
©
Danfoss
Manual: RS.8A.G
12/2002
29
Liquid level control
EKC 347
Application
The controller is used for regulation of the refrigerant level in:
• Pump reservoirs
• Separators
• Intermediate coolers
• Economisers
• Condensers
• Receivers
Principle
A signal transmitter will constantly register the refrigerant
level in the reservoir - the controller will receive the signal
and subsequently open and close the valve, so that the
refrigerant level will be kept within the given limits.
Signaltransmitter
It is possible to choose between two signal transmitters –
either a capacitive rod or a level float.
With the capacitive rod it is possible to set the refrigerant
level in a wide range. The level float, on the other hand,
provides a limitation due to the stroke which is only a few
centimeters long.
EKC 347
The controller can receive a signal which can displace the
reference. If a motor-operated valve is used, the controller
can receive a resetting signal from a position transmitter.
Expansionsvalve
On the valve side it will be the required capacity and
application which will determine the type of expansion
valve that will be needed.
AKV and AKVA are pulse-width modulating expansion
valves where AKVA is for ammonia. MEV is a motoroperated modulating valve where the motor is of type
SMVE.
Functions
• Liquid level control
• Relay outputs for upper and lower level limits and for alarm
level
LED's on front panel
• Analog input signal which can displace the reference
Opening signal to valve
Indication of upper level limit
Indication of lower level limit
30
RK.0Y.G2.02
©
Danfoss
12/2002
EKC 347
Application examples
Pump reservoir
Modulating control of injection makes for a more stable liquid
level and suction pressure.
Separator on flooded evaporator
Modulating control and the valve’s large capacity range
ensure a stable level - even under conditions of quickly
changing loads.
Intermediate cooler
The level transmitter’s wide measuring range enables it to
monitor the liquid at all levels of the reservoir - and hence to
use the signal for safety functions in connection with the max.
permissible level
Receiver / condenser
The control system’s short reaction time makes it very suited
for high-pressure float systems with small refrigerant charges.
EKC 347
RK.0Y.G2.02
©
Danfoss
12/2002
31
Menu survey
Function
Para- Min.
meter
Continued
Max.
Normal display
Read the measured liquid level
-
%
If you wish to see the actual opening degree, give
the lower button a brief push
-
%
If you wish to set the required setpoint you obtain
access by pushing both buttons simultaneously
-
0%
100%
External contribution to the reference. Cf. also o10.
Value is set in %-points.
r06
-100
100
Star t / stop of level control
r12
OFF
ON/on
Upper level limit
A01
0%
100%
Lower level limit
A02
0%
100%
Time delay for upper level limit
A03
0s
999 s
Level control
Alarm
Time delay for lower level limit
A15
0s
999 s
Level alarm limit
A16
0%
100%
Delay for level alarm
A17
0s
999 s
The level alarm must star t at:
0: Rising level (higher level than A16)
1: Falling level (lower level than A16)
A18
0/ris
1/fal
o12
0/50 Hz 1/60 Hz
Select the showing of the ”normal display”
If o34 = 0:
0: Liquid level is shown
1: Valve’s opening degree is shown
If o34 = 1 or 2:
0: Liquid level is shown
1: Position signal from AKS 45 is shown
o17
0
1
OFF: No manual control
1: Upper level relay put in pos. ON
2: Lower level relay put in pos. ON
3: AKV/A output put in pos. ON
4: Alarm relay activated (cut out)
o18
OFF
4
0
2
Define input signal (level signal) on terminals 14, 15,
16
0: OFF
1: 4-20 mA
o31
2: 0-10 V (also set the voltage values in the next two
menus)
Read functional description if the connection used is a
master/slave function.
Alarm (optional) for upper and lower level limit
0: If the upper or lower level limit is exceeded, alarm
A19
must also be given
1: If the upper or lower level limit is exceeded, alarm
must not be given
0
1
P - band
n04
0%/Off
200%
I: Integration time Tn
n05
60
600/Off
Period time (only if AKV/A valve is used)
n13
3s
10 s
Max. opening degree
n32
0%
100%
Min. opening degree
n33
0%
100%
Neutral zone (only for MEV valve)
n34
2%
25%
Definition of regulating principle
Low: On the low-pressure side (valve closes when
liquid level is rising)
High: On the high-pressure side (valve opens when
liquid level is rising)
n35
Low/0
Hig/1
Miscellaneous
o03*
0
60
ON/OFF switch (ser vice-pin message)
o04*
OFF
ON
Define valve and output signal:
1: MEV. AO: 4-20 mA
2: MEV. AO: 0-20 mA
3: AKV/A, AO: 4-20 mA
4: AKV/A, AO: 0-20 mA
Or if a master/slave function is used:
5: AKV/A, MASTER
6: AKV/A, SLAVE 1/1. AO:4-20 mA
o09
1
11
Define the input signal on terminals 10, 20, 21
(external reference displacement)
0: OFF
1: 4-20 mA
2: 0-20 mA
3: 2-10 V
4: 0-10 V
o10
0
4
Language
0=English, 1=German, 2=Frensh, 3=Danish,
o11*
4=Spanish, 5=Italian, 6=Swedish. When you change
the setting you must also activate O04.
0
6
32
© Danfoss
RK.0Y.G2.02
Define input signal’s lower value for terminal 14, if
required
o32
0.0 V
4.9 V
Define input signal’s upper value for terminal 14, if
required
o33
5.0 V
10 V
Define input signal on terminals 17-18
0: Not used
1: 4-20 mA from AKS 45. The signal is used for
information only
2: 4-20 mA from AKS 45, The signal is used in the
regulation as an ”inner regulating loop”
o34
0
2
Service
Read liquid level
u01
Read liquid level reference
u02
%
Read external contribution to the reference
u06
mA
Read external contribution to the reference
u07
V
Read current signal on the analog output
u08
mA
u10
Read valve’s opening degree
u24
%
Read level signal
u30
mA
Read level signal
u31
V
Read signal from AKS 45
u32
mA
Read signal from AKS 45 conver ted into %
u33
%
12/2002
%
EKC 347
Data
Supply voltage
24 V a.c. +/-15% 50/60 Hz, 60 VA
Power consumption
Controller
20 W coil for AKV
5 VA
55 VA
Level signal
4-20 mA or 0-10 V
Reference
displacement
4-20 mA, 0-20 mA,
2-10 V or 0-10 V
MEV feedback
signal
From AKS 45
Input signal
Contact function star t/stop of regulation
Relay output
2 pcs. SPST
Alarm relay
1 pcs. SPST
Current output
0-20 mA or 4-20 mA
Max. load: 500 ohm
Valve connection
Either AKV/A valve or MEV motor valve.
If an AKV/A valve is used, the controller must
supply the power to the coil.
Data
communication
module
Ambient
temperature
During operation
During transpor t
Enclosure
IP 20
AC-1: 4 A (ohmic)
Data communication
-10 - +55°C
-40 - +70°C
Weight
300 g
Mounting
DIN rail
Display
LED, 3-digits
Terminals
Approvals
EU Low Voltage Directive and EMC demands
re CE-marking complied with.
60730-2-9
50082-2
Ordering
Type
Function
Code No.
EKC 347
Liquid level controller
084B7067
EKA 173
084B7092
EKA 174
084B7124
Manual: RS.8A.X
See also section at the end of the catalogue "Components
for liquid level control".
EKC 347
RK.0Y.G2.02
©
Danfoss
12/2002
33
Display
EKA 161 and EKA 162
These displays may be used in conjunction with some of the
controllers in the EKC series, e.g. EKC 414.
EKA 161 has no control knobs and can be mounted on the
refrigeration appliance in such a way that the customer can
see the temperature at the goods.
EKA 162 has control knobs so that settings can be made in
the controller’s menu system.
84b2247
EKA 162
EKA 161
Display for mounting
on refrigeration
appliance.
Display with operating buttons and LED
indication of relay
functions.
EKC 414A
Data
Supply voltage From EKC controller
Display/
operation
Reading accuracy in the measuring range :0 .1%
EKA 161, LED, three digits
EKA 162, LED, three digits, two operating buttons
Electric
connection
Via plug
Ambient
temperature
During operation
During transpor t
0 to +55°C
-40 to +70°C
Mounting
Front mounting (IP 40)
Density
IP 20
Ordering
Description
Type
Code no.
Display unit
EKA 161
084B7019
Display unit with operation buttons
and symbols at LEDs
084B7039
EKA 162
Display unit with operation buttons but
without symbols at LEDs
Cable for display unit
(2 m with plug)
Cable for display unit
(6 m with plug)
34
1 pcs
084B7062
084B7298
24 pcs
084B7179
1 pcs
084B7299
24 pcs
084B7097
RK.0Y.G2.02
©
Danfoss
12/2002
EKA 161/162
Thermometer
EKA 151
The thermometer is an independent unit for showing the
temperature at a refrigerating point. Design and mounting
same as the other controllers in the Danfoss EKC 200
series.
The thermometer operates in conjunction with a PTC
temperature sensor which must be 1000 ohm at 25°C.
The sensor can be supplied with the thermometer.
Data
Supply voltage
230 V +10/-15%, 50/60 Hz, 2.5 VA
Sensor connection
PTC 1000 ohm at 25°C
fx. type EKS 111
Cable length = max. 10 m
Display
LED-three digits with 1 decimal
Measurement range
-60 to +50°C
Degree of accuracy
+/-1 K in range 0 to +10°C
+/-2 K in range below 0°C
+/-2 K in range above 10°C
Enclosure
IP 54
Ambient
Operation:
temperature Transpor t:
-5 to 55°C
-40 to +70°C
Approvals
EN 60730-1 and EN 60730-2-9
EN 50081-1 and EN 50082-1
Sensor type
EKS 111
Accuracy
+/-1.3 K at 25°C
+/-3.0 K at -55°C
+/-3.5 K at +100°C
Measurement
range
-55 to +100°C
Temperature
range for cable
-30 to +80°C
Density
IP 67
Fur ther technical data for EKS 111: Please see
technical brochure RD.5F.L.
Ordering
Type
EKA 151
EKA 151
Description
Code no.
Thermometer
084B7023
Thermometer and
EKS 111 with 1.5 m cable
084B7623
RK.0Y.G2.02
©
Danfoss
12/2002
35
Monitoring
Micromon
Application
Micromon is a combined data collection unit and monitoring
unit for small and medium.sized refrigeration installations.
• Local convenience stores
• Small supermarkets
• Restaurants
• Food producers
Advantages
• Compact unit for registration of temperatures
• Collects temperature data to be used by the authorities
• Alarm function
- Local alarm or via modem
- Alarm for temperature deviations
- Alarm for open doors to cold rooms and freeze departments
• Texts describing the measuring point may be added to
these points.
Functions
• 16 inputs for conneciton of sensors and on/off signals
• Display of temperatures
• Alarm function
• Data collection
Examples of menu displays
The individual measuring points are symbolised by a point.
This point will be hatched if the measurement is in an alarm
situation.
With the arrow keys a measuring point can be selected –
following which the values of the point can be seen on the
right hand side of the display.
There is another way of showing a measuring point. The
value is shown with large figures at the centre of the
display, and shown to the right are the alarm limits and the
time delay for the alarm.
If you want to see the earlier recorded temperatures for this
measuring point, it can also be done from this display. The
temperature performance during the past 24 hours is shown
here.
36
RK.0Y.G2.02
©
Danfoss
12/2002
Micromon
Data
Supply voltage
230 V +10/-15%, 50/60 Hz, 5 VA
Connection
PT 1000 ohm at 0°C or
PTC 1000 ohm at 25°C or
Digital On/Off signal
Display
Graphic LCD, 240 x 64
Measuring range
-60 to +50°C
Measuring accuracy
+/-0.5 K in the range -35 to +25°C
+/-1 K in the range below -35°C
+/-1 K in the range above 25°C
Data capacity
2 Mb
Printer connection
Parallel (Epson compatible)
Data communication
RS 232
Alarm relay
Number
2
Max. load
24 V a.c. 1 A
Enclosure
IP 20
Ambient
Operation
0 to 50°C
-20 to +70°C
Humidity
20 - 80% RH
Approvals
EN 60730-1 and EN 60730-2-9
EN 50081-1 and EN 50082-1
Weight
1.6 kg
Ordering
Type
Measuring
points
8
Description
Micromon
Number
Code no.
Monitoring unit
080Z8171
Printer cable 3 m (parallel)
1
080Z8401
Monitoring unit +
8 pcs. AKS 12 sensors
080Z8164
Cable for PC or Modem
3 m (with 9 pole plug)
1
080Z8400
Monitoring unit
080Z8172
Monitoring unit +
16 pcs. AKS 12 sensors
080Z8165
Micromon
16
Description
Code no.
RK.0Y.G2.02
©
Danfoss
Technical leaflet: RC.8A.U
Manual: RS.8A.Y
12/2002
37
m2
Application
M2 is a combined data collection unit and monitoring unit
for small and medium-sized refrigera-tion installations.
• Local convenience stores
• Small supermarkets
• Restaurants
• Food producers
Advantages
• Compact unit for registration of temperatures
• Collects temperature data to be used by the authorities
• Alarm function
- Local alarm or via modem
- Alarm for temperature deviations
- Alarm for open doors to cold room and freeze department
• Texts describing the measuring point may be added to
these points.
Functions
m2 also contains the functions applying to “Micromon”, but
beyond that m2 furthermore has data communication and
connections for up to max. 99 measuring points that are
distributed on direct link-up to temperature sensors and
connection to controllers via data communication.
• Eight or 16 inputs for connection of sensors and ON/OFF
signals
• Additional measuring points from controllers via data
communication
• View of temperatures
• Alarm function
• Data collection
Up to 99 measuring points
If the 16 connections of one monitoring unit are not enough,
external measuring units can be connected via the data
communication.
• Controllers
EKC 201, EKC 301 and EKC 414
These are temperature controllers at the refrigeration
points. The temperature signal can be received via data
communication.
EKC 331
This is a capacity controller for compressor or condenser
control.
• Extension modules
m2+
This is a unit like m2. but without display and without
operation.
It has 16 inputs.
m2-BBM
This is a slightly smaller unit for DIN-rail mounting. It has
eight inputs.
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m2
Data
Supply voltage
230 V +10/-15%, 50/60 Hz, 5 VA
Connection
PT 1000 ohm at 0°C or
PTC 1000 ohm at 25°C or
Digitalt On/Off signal
Display
Graphic LCD, 240 x 64
Measuring range
-60 to +50°C
Measuring accuracy
+/-0.5 K in the range -35 to +25°C
+/-1 K in the range below -35°C
+/-1 K in the range above 25°C
Data capacity
2 Mb / 6Mb
Printer connection
Parallel (Epson compatible)
Data communication
RS232, RS485
Alarmrelay
Number
2
Max. load
24 V a.c. 1 A
Enclosure
IP 20
Ambient
Operation
0 to 50°C
-20 to +70°C
Ambient humidity
20 - 80% RH
Approvals
EN 60730-1 and EN 60730-2-9
EN 50081-1 and EN 50082-1
Weight
1.6 Kg
Ordering
Type
m2
Measuring
points/
capacity
Description
Description
Number
Code no.
8 / 2Mb
080Z8167
16 / 2 Mb
080Z8152
Code no.
Printer cable 3 m (parallel)
1
080Z8401
Cable for PC or Modem
3 m (with 9 pole plug)
1
080Z8400
PT 1000 inputs
16 / 6 Mb
080Z8118
m2+
16 / -
080Z8005
m2-BBM
8/-
PT 1000 / On/Off
080Z8060
4-20 mA / On/Off
080Z8061
Technical leaflet: RB.8B.A
Manual: RS.8A.N
Technical leaflet, m2-BBM: RC.8A.T
Data colleting unit can also be delivered with thermistor
inputs. Please contact Danfoss.
m2
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AK series - Introduction
The AKC controllers are based on data communication and
systems solutions for the entire refrigerating plant.
Operation of the controllers can only be performed
externally – and not directly on the controller.
The series provides optimised solutions both at the
individual refrigeration points and for compressor and
condenser controls.
Energy optimisation
Through an interaction between controllers and compressor
regulation optimisation can be arranged, so that the
compressor will not work harder than what is accurately
needed for meeting the refrigeration requirement at the
most heavily loaded refrigeration point
Data communication is carried out vis DANBUSS Data
Communication.
The link between AKC controllers and the general
operation must be gateway type AKA 244. This gateway
can control the communication from 120 controllers.
If the system also contains controllers from the EKC
series, the gateway must however be type AKA 243. This
gateway can control the communication from 60 EKC
controllers plus 60 AKC controllers.
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AKC controllers
Refrigeration appliance controls
Refrigeration appliance controls regulate all important
functions in refrigeration appliances and cold rooms.
An extensive range of dedicated controllers ensures that a
unit precisely suitable for your application is available.
Depending on the type, a controller will serve one, two or
three evaporators.
Appliance and cold room control with AKV or thermostatic
expansion valves
Refrigeration appliance and cold room monitoring.
Refrigeration plants with hot gas defrosting.
Brine chillers.
Stand-alone deep-freeze and cold rooms.
General functions
Thermostats with alarm function
ON/OFF or modulating temperature regulation
Night thermostats with built-in clock
Connection of LCD display for indication of media temperature
Defrost function, internal defrost program
Defrost stop according to temperature or time
Fan and/or rail heating control
Compressor signal
Sensor calibration
Service mode
Energy savings from
Adaptive superheat adjustment with AKV
Fan/rail heater pulsation
Defrost stop according to temperature
Modulating temperature regulation
Night set back
AKC 114-116
AKC controllers for up to three evaporators in refrigeration
appliances and cold rooms with hot gas defrosting.
Special functions
Timers for hot gas defrosting
Possibility of operation with thermostatic
expansion valve or AKV valve
AKC 114 - 116
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AKC 114A-116A
appliances and cold rooms.
The controller uses pressure and temperature to control the
AKV valve.
Special functions
Individual thermostats with alarm function
Analogue input for overriding thermostat
DI for external alarms
Energy savings from
Defrost on demand (DOD)
AKC 114D-116D
The controller uses two temperature sensors to control the
AKV valve.
Special functions
Door switch signal
Possibility of operation with thermostatic expansion valve
or AKV valve
Energy savings from
AKC 114F-116F
The controller uses two temperature sensors to control the
AKV valve.
Special functions
Door switch signal at AKC 114F
• Light control
• Sequentiel defrost of sections
Possibility of operation with thermostatic expansion valve
or AKV valve
Energy savings from
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AKC 114 - 116
AKC 121A
AKC controllers for two cooling coils in refrigeration appliances with brine cooling or with thermostatic expansion
valves.
Functions
Two separate thermostats with alarm function
Connection of two LCD displays for indication of media
temperature
Fan and/or rail heater control
Sensor calibration
Service mode
Load equalisation
Energy savings from
Fan/rail heater pulsation/light control
Night set back
Technical brochure: RC.1H.C
Function description: A, D and "_" versions: RC.1H.U
Function description: F version: RC.1M.F
Function description: AKC 121: RC.1M.D
Cold room control
AKC 121B
AKC controllers for two cooling coils in cold rooms with brine
cooling or with thermostatic expansion valves.
Functions
Two separate thermostats with alarm function
Connection of two LCD displays for indication of media
temperature
Light control or defrost
on/off input from door switch
Sensor calibration
Service mode
Load equalisation
Energy savings from
Fan/rail heater pulsation/light control
Night set back
Technical brochure: RC.1H.C
Function description: RC.1M.D
AKC 121
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AKC 72A
AKC 72A controller primarily for cold room and cold store
control.
AKC 72A has a built-in log memory and alarm log.
The controller is available in two different versions:
AKC 72A with communication
AKC 72A without communication
Functions
Quick programming
Thermostat with alarm function
Night thermostat with built-in clock
Defrost function
Clear defrost clock
Stop according to temperature or time
Fan control
Door alarm
Sensor calibration
Service mode
Encoding of access code
Compressor or lighting control
Energy savings from
Adaptive superheating adjustment with AKV
fan pulsation
Night set back
Application example
Example of display
Technical brochure: RC.8A.B
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AKC 72A
AKC 151R
AKC controller for cold room and cold store control where
flooded evaporator are used.
Application
• Cold store
• Brewerie
• Slaughterhouse
• Dairy
Functions
Thermostat set back allows the reduction of the room
temperature, when the electricity tariff is low
Fan operation during cutout
Normally hot gas or electric defrost
Weekly defrost programme
Liquid drain function
Complete compressor functionality during operation with
hot gas defrost
Injection delay
Fan delay
Supply valve bypasses delay
Quick-start function (requires AKVA valve)
Data collection via AKM: temperature, alarms etc.
Modem communication facility
• Separate display can be connected
Energy savings from
Fan pulsation
Night set back
Technical brochure: RC.4J.D
AKC 151R
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Refrigeration appliance and cold room with hot gas defrost.
AKC 114G
The liquid supply is controlled by signals from temperature
sensors and a pressure transmitter
The temperature in the evaporator section is controlled by a
thermostat function which can be defined in various ways,
depending on application.
Defrost is accomplished according to a fixed sequence
where the controller opens and closes for the gas valves.
The controller can only be used in central installations.
Functions
Thermostat with alarm function
ON/OFF or modulating temperature regulation
Connection of LCD display for indication of media temperature
Stop according to temperature or time
Timer for hot gas defrost
Fan control
Operation with AKV valve
Service mode
Function description: RC.8A.R
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AKC 114G
Subcooling in the liquid line
AKC 114G
The control is primarily used in installations where the
condensing pressure varies with the ambient temperature.
The control must provide subcooled liquid for the expansion
valves.
The cooling is primarily controlled on the basis of signals
from three temperature sensors and two pressure transmitters. The temperature in the subcooler is controlled in such a
way that flashgas will not be created in the liquid line.
Functions
PI control
Monitoring of superheat
Service mode
Function description: RC.8A.R
AKC 114G
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Water chiller control
AKC 24W2
AKC 24W2 is a complete control unit for regulating water
chillers.
The controller incorporates both compressor capacity
regulation and electonic expansion valve regulation.
AKC 24W2 is able to control the capacity stages on one or
two, piston compressors in order to maintain constant
temperature. In addition, it regulates the supply of refrigerant
to industrial evaporators.
AKC 24W2 is able to regulate two separate AKVA or AKV
electronic expansion valves.
The superheat signal is measured via an AKS
Pt 1000 sensor and an AKS 32 pressure transmitter.
Principle
Capacity regulation
The main function is that of an electronic stage coupler
which, by monitoring the temperature of the medium ensures
that the compressor capacity is always adapted to the actual
load.
Using the actual temperature of the medium, the stage
coupler calculates the capacity required and whether the
temperature is falling or rising so that the number of stage
changeovers can be kept to a minimum.
In addition to the stage coupler function, the controller
contains a frost protection thermostat and sensor fault
monitoring.
Evaporator control
The controller incorporates two types of adaptive regulation
of the refrigerant supply to a shell and tube evaporator. The
controller is able to control one or two, AKV/AKVA electronic
expansion valves to ensure optimum refrigerant injection.
Superheat is measured using one temperature sensor (S2)
and one pressure transmitter for each evaporator.
Functions
• Energy saving
Adaptive setting of expansion valve.
• Compressor optimisation
The controller adapts compressor capacity to actual load.
Technical brochure: RC.1J.E
Function description: RC.1J.6
• Accurate temperature regulation
The combination of adaptive evaporator and compressor
control gives minimum energy comsumption and high
media temperature accuracy.
AKC 24W3
AKC 24W3 has additional control functions compared to
AKC 24W2.
The most important functions are the following:
• Regulation of screw compressors
• Regulation of condensing pressure
Function description: RC.8A.J
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AKC 24W2
AKC 25H7
AKC 25H7 is a complete brine cooler control unit that has
been developed for indirect refrigerating systems in
supermarkets.
The controller’s main function is to control compressors and
condensers in such a way that the required brine
temperature is maintained on the cold and warm side of the
compressor system.
The controller contains all the functions required for the
control of a brine cooler:
• The cold brine temperature can be controlled according to
the shop temperature or the enthalpy
• Day/night programmes for the temperature reference
(economy control)
• Alarm limits and delays on forward and return flow temperatures
• Capacity control and monitoring of compressors distributed
on one or two groups
• Sequential control or time equalisation of compressors
• Frost cutout for monitoring of suction pressure P0
• Peak load limitation via external signal
• Central defrost control or weekly programme (stop based
on temperature or time)
• Signal given when injection is permitted
• Control and monitoring of single pump or twin pump on
cold and warm brine
• Built-in rotation between twin pumps
• Automatic pump change when pump is defective
• Control and monitoring of air-cooled or brine-cooled
condenser
• Condenser can be controlled based on pressure (Pc) or
warm brine temperature (S7)
• Monitoring of max. condensing pressure
• Step regulation or speed regulation of fans
• Condensing pressure can be controlled according to
outdoor temperature and an external voltage signal
• Control of heat recovery temperature with built-in safeguard
against too low condensing pressure
• Heat recovery temperature can be controlled according to
outdoor temperature and an external voltage signal
• Monitoring of the compressors’ safety circuit can be supplemented with alarm module type AKC 22H
Application example
Function description: RC.1N.P
AKC 25H7
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Compressor and condenser controls
Compressor controls ensure precise and stable refrigeration
plant suction and condensing pressure regulation.
Being a part of ADAP-KOOL® Refrigeration control systems,
the compressor control ensures optimum monitoring and
alarm procedures and the possibility of different monitoring
functions to optimise refrigeration plant operation.
General functions
Setting of suction and condensing pressure
Monitoring of min. and max. pressure
Preventive regulation to avoid alarm in connection with
short-lived excessive pressure rise or fall
Sequential or operating hour compensated coupling of
compressor stages
Sequential coupling of condenser stages
External override of suction pressure reference
Night suction pressure increase
Connection of external alarm module AKC 22H with
detailed registration and redirection of alarms
Service mode
• Full monitoring of compressor unit safety functions.
• Suction pressure optimisation via the override function
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AKC 25H
AKC 25H1
AKC 25H1 is a capacity controller for compressors and
condensors.
AKC 25H1 controls up to nine stages distributed between the
compressor and/or condensing stage.
Description
• Possibility of connection to both main and relief stages of
identical sizes.
• Neutral zone adjustment of suction pressure and condensing pressure.
Application example
Technical brochure: RC.1J.4
Function description: RC.1J.Z
AKC 25H1
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AKC 25H3
The controller has the same functions as the AKC 25H1 but
is furthermore able to control two independent refrigerating
circuits.
Description
• Neutral zone adjustment of suction pressure and condensing pressure.
PI regulation of condensing pressure.
Regulation of condensing pressure as a function of
outdoor temperature
• Possibility of variable speed regulation of condenser fan or
connection of a relay module for further step-by-step
coupling of condenser steps
Internal day/night clock
• Connection of display to show selected operating parameters
Application example
Function description: RC.8A.H
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AKC 25H3
AKC 25H5
The controller has the same functions as the AKC 25H1 but
also offers the possibility of controlling the different stage
intervals and speed adjustment. This ensures even better
capacity adaptation to the actual load.
Description
Possibility of connection to both main and relief stages of
different sizes.
PI regulation of suction and condensing pressure.
Possibility of connection to VLT frequency converter for the
speed regulation of a compressor stage or condensing
stage.
Further functions
Regulation of condensing pressure as a function of
outdoor temperature
Internal day/night clock
Possibility of heat recovery or liquid injection in suction line
Connection of display to show selected operating parameters
• Possibility of connecting external energy monitoring
equipment so that the maximum coupled compressor
capacity can be limited
Application example
Function description: RC.1J.5
AKC 25H5
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Monitoring
AKL 111A
AKL 111A is a monitoring and alarm unit for refrigeration
appliances and cold rooms. When used together with AKM
system software it is possible to log up to eight temperatures
at different points in the refrigeration plant.
Functions
Eight ports for configuration as either temperature or digital
alarm ports
LCD display or selector connection
Hour counters
Pulse counters
• Energy registration via pulse counters
Alarm delays
Application example
Technical brochure: RC.0X.K
AKL 25
AKL 25 is a slightly larger unit than AKL 111A. It contains,
among other things:
• 14 inputs for temperature measuring
• 9 pressure transmitter inputs
• 3 voltage inputs
• 4 ON/OFF inputs
Technical brochure: RC.0X.K
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AKL
Display
Most of the refrigeration controls have one or more outputs
for showing the appliance temperature.The signal is
adapted to the following displays:
AKA 14
LCD displays
External fitting
Supplied with 3 m cable
AKA 15
LED displays
Installed in front panel
Supplied with 3 m cable
(The design follows the controller in the EKC series).
AKA 14, 15
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Operation
General
All controllers in the AK series are provided with data
communication. Operation of the individual controllers can
be accomplished by connecting them to the data
communication. This can be done directly in the system or
from a distance, e.g. via a modem. A combination is also
possible.
AKA 21
This unit is only recommended for small systems and for
use in service situations,
The unit is provided with plugs that can connect it to the
data communication.
Settings are made in the individual controllers via a menu
system.
AK-Monitor
Is a PC programme with a few well arranged functions
selected from the more comprehensive AKM 4 programme.
In AK Monitor importance has been attached to simple
operation, monitoring and log collection of temperatures
Settings and function surveys are obtained from specially
designed general layout displays.
MIMIC
(AK Monitor with extended graphic user interface).
A picture is drawn of the placing of the refrigeration points
This drawing is subsequently used as background on the
PC screen, and temperatures and functions can now be
seen in connection with the refrigeration point. An on-going
defrost, for example, will be shown together with a “drop”
symbol.
-
AKM 4
Systems software type AKM 4 is used for service and for
setup of a system.
The programme can also be used for larger systems where
there are employees with refrigeration-technical
knowledge.
A central service company can use the programme for
downloading data from various systems.
AKM 5
Is AKM 4 with an extended graphic user interface.
If alarms have to be transmitted to a mobile phone, it can be
done via AKM 4 or AKM 5.
-
Technical brochure: RC.0X.L
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AKC
Gateways
AKA 241, AKA 243 and AKA 244 gateways are system
components for use together with controllers in ADAPKOOL® Refrigeration control systems.
Gateways make it possible to construct complex control
systems with alarm monitoring and data logging in connection with decentralised refrigeration plants.
All controllers in the ADAP-KOOL®
Refrigeration control systems are connected to a 2-wire data
communication system
registered under the name DANBUSS data communication
system.
An AKA gateway is connected to the data communication
system and linked up with a modem or printer or a controller
type EKC.
AKA 244
Is used where data communication takes place with
DANBUSS. 120 controllers can be connected.
AKA 243
Is used where data communication takes place fully or
partly with LON.
Up to 60 controllers can be connected to the DANBUSS
unit.
Up to 60 controllers can be connected to the LON unit.
AKA 243 comes in two versions:
AKA 243 A where LON communication takes place with FTT
10.
AKA 243 B where LON communication takes place with RS
485.
AKA 241
PC gateway
Is used where an AKA 243 or an AKA 244 is to be
connected to a PC. For example on a centrally placed PC
receiving data from several refrigeration installations.
.
Technical brochure: RC.0X.L
Manual: RS.8A.A-
AKA 243, 244
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Override
Introduction
The master gateway of an ADAP-KOOL® refrigerating system
contains an override function that can transmit signals
between selected controllers via the data communication.
Setup takes place via system software type AKM where the
individual functions are established. During the subsequent
operation it is not necessary for the AKM programme to be
operative - the master gateway itself will control the
functions.
Based on the selected function the controllers are gathered
in groups. So when there is override, all controllers in the
group will receive the same override signal.
AKC ON
All controllers controlling an expansion valve have an AKC
ON connection. By cutting out this connection the controller
will close the valve, so that there will be no liquid flow in the
evaporator. In this way it is certain that the valve will close
when the compressor has stopped due to an operational
breakdown.
Change of alarm limit
This function changes the set alarm limit in the different
controllers.
The alarm limit is changed as a function of a room
temperature measurement, and the change may be up to 10
K from the starting value. The override may also be made
dependent on the outdoor temperature, so that it only starts
operating when the outdoor temperature exceeds a set
value.
The function is primarily used in refrigerating systems where
it is difficult to maintain the required temperature on
extremely hot summer days.
Defrost control
The override function enables you to define and start a
number of defrost cycles.
When the defrost has been started, it is up to the individual
controllers to determine how it is to be terminated again. In
some it may stop based on time, in others based on
temperature.
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AKA 243, 244
Day/night control
This function transmits a signal to selected controllers. The
signal can be used for raising the temperature reference and
for raising the suction pressure reference.
When the individual controllers receive the signal, the
reference will be changed by the value set in the individual
controllers.
Time schedule
The override function enables you to define a number of time
schedules.
Example of use:
Input signal for day/night control.
Override
P0- / suction pressure optimisation
The override function makes it possible for you to optimise
the suction pressure so that it will be adapted to the system’s
actual load. During the optimisation data are collected that
tell you which refrigeration points are most heavily loaded.
The individual controllers handle the temperature control in
the refrigeration appliances. Some controllers control two,
others three refrigeration points in the same appliance. The
load and operating condition of each refrigeration point are
continuously uploaded to the gateway via the data communication. The collected data are accumulated here and the
”most heavily loaded” refrigeration point identified. An
adaptation will now be made of the suction pressure so that
the air temperature at the refrigeration point is maintained.
Only after a period of, say, 20 minutes, or if the operating
condition of the refrigeration point is changed (defrost,
cutout, etc.) can another refrigeration point be designated as
the ”most heavily loaded one”.
It is the gateway that collects data from the refrigeration
points and it is the gateway that transmits an offset signal to
the compressor control so that the suction pressure reference is changed to suit the needs at the ”most heavily
loaded” refrigeration point.
The set min./max. limits for the suction pressure will of course
be observed.
The time during which a refrigeration point has been designated ”the most heavily loaded one” will be summed up in a
log (history) in the shape of minutes. These data can be
presented in a display containing ”the last 24 hours” and ”the
last 168 hours (one week)”. The oldest values will continuously be overwritten.
It will typically be the same pattern that is formed on the two
charts, but if ”new ones” emerge and differ from the rest this
should be examined more closely.
Setup guide: RI.8A.L
AKA 243, 244
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Ordering survey AK series
Type
Description
Language
Code no.
AKC 114
Refrigeration appliance controls for 1 evaporator
GB, DE, FR
084B6027
AKC 114
GB, DK, ES
084B6028
AKC 115
Refrigeration appliance controls for 2 evaporators
GB, DE, FR
084B6042
AKC 115
GB, DK, ES
084B6046
AKC 116
GB, DE, FR
084B6043
AKC 116
GB, DK, ES
084B6047
AKC 114D
GB, DE, FR
084B6029
AKC 114D
GB, DK, ES
084B6032
AKC 115D
GB, DE, FR
084B6044
AKC 115D
GB, DK, ES
084B6048
AKC 116D
GB, DE, FR
084B6045
AKC 116D
GB, DK, ES
084B6049
AKC 114A
GB, DE, FR
084B6171
AKC 114A
GB, DK, ES
084B6172
AKC 115A
GB, DE, FR
084B6173
AKC 115A
GB, DK, ES
084B6174
AKC 116A
GB, DE, FR
084B6175
AKC 116A
GB, DK, ES
084B6176
AKC 114F
GB, DE, FR
084B6178
AKC 115F
GB, DE, FR
084B6179
AKC 116F
GB, DE, FR
084B6180
AKC 121A
GB, DE, FR, DK, ES, SE
084B2051
AKC 121B
Cold room controls for 2 evaporators
GB, DE, FR, DK, ES, SE
084B2904
AKC 72A
Cold room controls for 1 evaporator, without data communication
GB, DE, FR
084B1202
AKC 72A
DK, SE, FI
084B1206
AKC 72A
ES, IT, PT
084B1208
AKC 72A
GB, PL, NL
084B1210
AKC 72A
GB, DE, FR
084B1203
AKC 72A
DK, SE, FI
084B1207
AKC 72A
ES, IT, PT
084B1209
AKC 72A
GB, PL, NL
084B1211
Base for AKC 72A for wall mounting
084B1241
Base for AKC 72A for mounting in front panel or DIN rail
084B1240
AKC 151R
Cold room control for one flooded evaporator
GB
084B6195
AKC 114G
Refrigeration appliance and cold room with hot gas defrost
Subcooling in the liquid line
GB, DE, FR
084B6184
AKC 24W2
Water chiller control
GB
084B2027
AKC 24W3
Water chiller control, extended
GB
084B2043
AKC 25H7
Capacity control of brine cooler units
GB, DE, FR
084B2022
AKC 25H7
Capacity control of brine cooler units
GB, DK, SE
84B2023
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Type
Description
Language
Code no.
AKC 25H1
Compressor control
GB, DE, FR
084B2017
AKC 25H1
Compressor control
GB, ES, DK
084B2018
AKC 25H3
Compressor control, double
GB, DE, FR, ES, DK
084B2039
AKC 25H5
Compressor control, extended
GB, DE, FR
084B2020
GB, ES, DK
AKC 25H5
Compressor control, extended
AKC 22H
Alarm module
084B2021
AKL 111A
Monitoring and alarm units
GB, DE, FR, DK, ES, IT, SE
084B6039
AKL 25
Monitoring and alarm units, extended
GB
084B2012
AKA 14
Display
084B6040
AKA 15
Display
084B6130
3 m cable for AKA 15 (24 pcs.)
084B6145
AKA 21
Setting module
084B2002
Terminal box for AKA 21
084B2071
AK-Monitor
System software for end users (1 user version)
084B4100
AK-MIMIC
AK-Monitor with graphic user interface (1 user version)
084B4101
084B2050
AKM 4
System software for refrigeration technicians (1 user version)
084B4012
AKM 5
AKM 4 with graphic user interface (1 user version)
084B4015
AKA 22
Signal amplifier, DANBUSS
084B2042
AKA 241
PC gateway
084B2262
AKA 243A
Gateway, DANBUSS + LON (FTT10)
084B2265
AKA 243B
Gateway, DANBUSS + LON (RS485)
084B2266
AKA 244
Gateway, DANBUSS
084B2260
Cable, PC gateway, 9-9 pole
084B2094
Cable, PC gateway, 9-25 pole
084B2096
Cable, PC-MSS ser ver, MSS ser ver-gateway
084B2098
RK.0Y.G2.02
©
Danfoss
12/2002
61
Valves and sensors
In conjunction with the earlier mentioned controllers, valves
and sensors must be used. Below there is a brief
description of the main data for the most used products.
Further data can be obtained from the relevant technical
brochures. For the dimensioning of valves, in particular,
further information should be obtained.
Expansion valves
AKV 10, AKV 15, AKV 20
AKV are electrically operated expansion valves designed for
refrigerating plant.
The AKV valves can be used for CFC, HCFC and HFC
refrigerants.
The AKV valves are normally controlled by a controller from
Danfoss’ range of ADAP- KOOL® controllers.
The AKV valves are supplied as a component programme,
as follows:
• Separate valve
• Separate coil with terminal box or cable
• Spare parts in the form upper part, orifice and filter
The individual capacities are indicated with a number
forming part of the type designation. The number represents
the size of the orifice of the valve in question. A valve with
orifice 3 will for example be designated AKV 10-3.
The orifice assembly is replaceable.
Features
• For CFC, HCFC, HFC refrigerants
• The valve requires no adjustment
• Wide regulation range
• Replaceable orifice assembly
• Both expansion valve and solenoid valve.
Approvals
DEMKO, Denmark
SETI, Finland
Technical data
Valve type
AKV 10
AKV 15
AKV 20
Tolerance of coil
voltage
+10 / –15%
Enclosure acc. to
IEC 529
Max. IP 67
Working principle
(Pulse-width
modulation)
PBM
Recommend period
of time
6 seconds
Capacity (R22)
1 to 16 kW
25 to 100 kW
100 to 630
kW
Regulation range
(Capacity range)
10 - 100%
Connection
Flare or
solder
Solder
Solder or weld
Evaporating
temperature
– 60 to 60°C
– 50 to 60°C
– 40 to 60°C
Ambient
temperature
– 50 to 50 °C
– 40 to 50 °C
– 40 to 50 °C
Leak of valve seat
< 0.02% of kv-value
MOPD
18 bar
22 bar
18 bar
Filter, replaceable
100 µm
No
No
Max. working
pressure
PB = 28 bar
PB = 28 bar
PB = 28 bar
Test pressure
p´= 36 bar
p´= 36 bar
p´= 31 bar
SEV, Switzerland
S UL listed (separate code. nos.)
A CSA certified (separate code. nos.)
AKV 20: CE-marked according to PED
62
RK.0Y.G2.02
©
Danfoss
12/2002
AKV 10, 15, 20
Rated capacity and Ordering
Rated capacity in kW 1)
Valve type
kv-value
Connections
Flare
Solder ODF
Inlet x outlet
AKV 10-1
AKV 10-2
AKV 10-3
AKV 10-4
AKV 10-5
AKV 10-6
AKV 10-7
AKV 15-1
AKV 15-2
AKV 15-3
AKV 15-4
Valve type
R 22 R 134a R 404A
R 507
1.0
0.9
0.8
1.6
1.4
1.3
2.6
2.1
2.0
4.1
3.4
3.1
6.4
5.3
4.9
10.2
8.5
7.8
16.3
13.5
12.5
25.5
21.2
19.6
40.8
33.8
31.4
64.3
53.3
49.4
102
84.6
78.3
R 407C
m3/h
Inlet x outlet
Code no.
in.
1.1
1.7
2.5
4.0
6.4
10.1
17.0
25.2
40.4
63.7
101
Rated capacity in kW 1)
0.010
0.017
0.025
0.046
0.064
0.114
0.209
0.25
0.40
0.63
1.0
Inlet x outlet
Code no.
in.
/8 × 1/2
/8 × 1/2
3
/8 × 1/2
3
/8 × 1/2
3
/8 × 1/2
3
/8 × 1/2
1
/2 × 5/8
3
3
068F1160
068F1163
068F1166
068F1169
068F1172
068F1175
068F1178
/8 × 1/2
/8 × 1/2
3
/8 × 1/2
3
/8 × 1/2
3
/8 × 1/2
3
/8 × 1/2
1
/2 × 5/8
3
/4 × 3/4
3
/4 × 3/4
7
/8 × 7/8
11/8 × 11/8
3
3
kv-value
Code no.
mm
068F1161
068F1164
068F1167
068F1170
068F1173
068F1176
068F1179
068F5000
068F5005
068F5010
068F5015
10 × 12
10 × 12
10 × 12
10 × 12
10 × 12
10 × 12
12 × 16
18 × 18
18 × 18
22 × 22
28 × 28
Connections
Solder ODF
Inlet x outlet
AKV 20-1
AKV 20-2
AKV 20-3
AKV 20-4
AKV 20-5
R 22 R 134a R 404A
R 507
102
84.6
78.3
163
135
125
255
212
196
408
338
314
643
533
494
R 407C
101
170
252
404
637
m3/h
in.
13/8 ×
13/8 ×
15/8 ×
21/8 ×
21/8 ×
1.0
1.6
2.5
4.0
6.3
068F1162
068F1165
068F1168
068F1171
068F1174
068F1177
068F1180
068F5001
068F5006
068F5010
068F5016
13/8
13/8
15/8
21/8
21/8
Weld
Inlet x outlet
Inlet x outlet
Code no.
mm
Code no.
in.
Code no.
042H2020
042H2022
042H2024
042H2027
042H2029
35 × 35
35 × 35
42 × 42
54 × 54
54 × 54
042H2020
042H2022
042H2025
042H2027
042H2029
11/4 × 11/4
11/4 × 11/4
11/4 × 11/4
11/2 × 11/2
2×2
042H2021
042H2023
042H2026
042H2028
042H2030
1
) Rated capacities are based on
Condensing temperature tc = 32°C
Liquid temperature
tl = 28°C
Evaporating temperature te = 5°C
Dimensioning
To obtain an expansion valve that will function correctly
under different load conditions it is necessary to consider the
following points when the valve has to be dimensioned:
These points must be dealt with in the following sequence:
1)
2)
3)
4)
5)
6)
Evaporator capacity
Pressure drop across the valve
Correction for subcooling
Correction for evaporating temperature
Determination of valve size
Correctly dimensioned liquid line
Technical brochure RD.8A.B
AKV 10, 15, 20
RK.0Y.G2.02
©
Danfoss
12/2002
63
Spare parts
AKV 10
Orifice
Orifice no.
1
2
3
4
5
6
7
Code no.
068F0506
068F0507
068F0508
068F0509
068F0510
068F0511
068F0512
Filter:
Contents:
Contents
1 pc. orifice
1 pc. Al. gasket
1 pc. cap for coil
Code no. 068F0540
10 pcs. filters
10 pcs. Al. gaskets
Upper part: Code no. 068F0541
Contents: 1pc. armature ass.
1pc. armature tube
1pc. Al. gasket
12345
12345
Gasket for upper part: Code no. 068F0549
Contents:
25 pcs. Cu/Tn gaskets
AKV 15
Piston
Type
AKV 15-1
AKV 15-2
AKV 15-3
AKV 15-4
Code no.
068F5265
068F5266
068F5267
068F5268
Filter:
Code no. 068F0540
Contents: 10 pcs. filters
10 pcs. Al. gaskets
Contents
1
1
1
2
pc. piston assembly
pc. gasket
pc. O-ring
pcs. labels
Gasket set: Code no. 068F5263
Contents: 30 pcs. O-rings
10 pcs.Cu-gaskets
10 pcs. gaskets
1pc. armature tube
1pc. Al. gasket
12345
12345
Contents:
AKV 20
Piston
Type
AKV 20-0.6
AKV 20-1
AKV 20-2
AKV 20-3
AKV 20-4
AKV 20-5
Code no.
042H2039
042H2040
042H2041
042H2042
042H2043
042H2044
Contents
Gasket set:
Contents:
1 pc.piston assembly
3 pcs.O-rings
1pc. armature tube
1pc. Al. gasket
Orifice set
Type
AKV 20-0.6
AKV 20-1
AKV 20-2
AKV 20-3
AKV 20-4
AKV 20-5
64
Code no.
068F5270
068F5270
068F5270
068F5270
068F5271
068F5271
Code no. 042H0160
Complete gasket set
for new and old
valves
Contents
12345
Main orifice, dia. 8 mm
Pilot orifice, dia. 1.2 mm
2 pcs. Al. gaskets
O-ring
Contents:
2 pcs. Al. gaskets
O-ring
RK.0Y.G2.02
© Danfoss
12/2002
AKV 10, 15, 20
AKVA 10 AKVA 15, AKVA 20
AKVA are electrically operated expansion valves designed
for ammonia refrigerating plant. The AKVA valves are
normally controlled by a controller from Danfoss’ range of
ADAP-KOOL® controllers.
The AKVA valves are supplied as a component programme,
as follows:
• Separate valve
• Separate coil with terminal box or cable
• Spare parts in the form upper part, orifice and filter
the size of the orifice of the valve in question.
A valve with orifice 3 will for example be designated AKVA
10-3.
Technical data
Features
• For ammonia (R 717)
• The valve requires no adjustment
• Wide regulation range
• Replaceable orifice assembly
• In some applications AKVA can be used both as expansion valve and solenoid valve
• Wide range of coils for d.c. and a.c.
Approvals
DEMKO, Denmark
SETI, Finland
SEV, Switzerland
UL listed to U8.S. and Canadian standards
(separate code. nos.)
Valve type
Tolerance of coil
voltage
AKVA 10
AKVA 15
AKVA 20
+10 / –15%
Enclosure to IEC
Max. IP 67
529
Working principle
(Pulse-width
modulation)
PBM
Recommend
period of time
6 seconds
Capacity (R717)
4 to 100 kW
Regulation range
(Capacity range)
10 - 100%
125 to 500 kW
500 to 3150
kW
Connection
Weld
Media
temperature
– 50 to 60°C
– 40 to 60°C
– 40 to 60°C
Ambient
temperature
– 50 to 50 °C
– 40 to 50 °C
– 40 to 50 °C
Leak of valve seat < 0.02% of kv-value
MOPD
AKVA 10, 15, 20
RK.0Y.G2.02
©
Danfoss
18 bar
22 bar
18 bar
Filter, replaceable 100 µm
No
No
Filter, in front of
valve
100/150 µm
100 µm
-
Max. working
pressure
PB = 28 bar
PB = 28 bar
PB = 28 bar
Test pressure
p´= 36 bar
p´= 36 bar
p´= 31 bar
12/2002
65
Rated capacity and Ordering
Symbol
Nominal capacity1)
Valve type
kv-value
kW
tons
m3/h
AKVA 10-1
AKVA 10-2
AKVA 10-3
AKVA 10-4
AKVA 10-5
AKVA 10-6
AKVA 10-7
AKVA 10-8
AKVA 15-1
AKVA 15-2
AKVA 15-3
AKVA 15-4
AKVA 20-1
AKVA 20-2
AKVA 20-3
AKVA 20-4
AKVA 20-5
4
6.3
10
16
25
40
63
100
125
200
300
500
500
800
1250
2000
3150
1.1
1.8
2.8
4.5
7.1
11.4
17.9
28.4
35
60
90
140
140
240
350
600
900
0.010
0.015
0.022
0.038
0.055
0.103
0.162
0.251
0.25
0.40
0.63
1.0
1.0
1.6
2.5
4.0
6.3
Connection
in.
Code no.
Connection
inlet x outlet
in.
Code no.
/8 × 1/2
/8 × 1/2
3
/8 × 1/2
3
/8 × 1/2
3
/8 × 1/2
3
/8 × 1/2
068F3261
068F3262
068F3263
068F3264
068F3265
068F3266
Flange
Flange
Flange
Flange
1 1/4 × 1 1/4
1 1/4 × 1 1/4
1 1/4 × 1 1/4
1 1/2 × 1 1/2
2×2
068F50202)
068F50232)
068F50262)
068F50292)
042H2101
042H2102
042H2103
042H2104
042H2105
3
3
Connection
inlet x outlet
in.
Code no.
/2 × 3/4
/2 × 3/4
1
/2 × 3/4
1
/2 × 3/4
1
/2 × 3/4
1
/2 × 3/4
1
/2 × 3/4
1
/2 × 3/4
068F3281
068F3282
068F3283
068F3284
068F3285
068F3286
068F3267
068F3268
1
1
1
) Rated capacities are based on
Liquid temperature
tl = 28°C
Evaporating temperature te = 5°C
2
) Incl. bolts and gaskets but without flanges
Flange set for AKVA 15
Symbol
Recommended filter for AKVA 15
Valve type
AKVA 15-1
3
027N1220
AKVA 15-2
3
/4
027N1220
AKVA 15-3
AKVA 15-4
1
1
027N1225
027N1225
/4
Symbol
1
Type
Code no.
FA 20
006-10131)
) Including stay bolts, nuts and gaskets
Recommended filters for AKVA 20
Filter type
Symbol
FIL
1
STA
FIL 20 D220
FIL 25 D220
FIL 32 D220
FIL 40 D220
STA 50 D220
Connection
Inlet Outlet
in.
in.
3
3
/4
/4
1
1
11/4
11/4
1
1 /2
11/2
2
2
Filtrationgrad
µm
100
100
100
100
100
Mesh/in. 1)
150
150
150
150
150
Material
stainless
stainless
stainless
stainless
stainless
steel
steel
steel
steel
steel
Code no.
2464+632
2464+633
2464+627
2464+628
2464+629
) According to DIN 4189
Dimensioning
To obtain an expansion valve that will function correctly
under different load conditions it is necessary to consider the
following points when the valve has to be dimensioned:
These points must be dealt with in the following sequence:
1)
2)
3)
4)
5)
6)
Evaporator capacity
Pressure drop across the valve
Correction for subcooling
Correction for evaporating temperature
Determination of valve size
Correctly dimensioned liquid line
Technical Brochure RD.8A.C
66
RK.0Y.G2.02
© Danfoss
12/2002
AKVA 10, 15, 20
Spare parts
AKVA 10
Filter:
Contents:
Orifice
Type
AKVA 10-1
AKVA 10-2
AKVA 10-3
AKVA 10-4
AKVA 10-5
AKVA 10-6
AKVA 10-7
AKVA 10-8
Code no.
068F0526
068F0527
068F0528
068F0529
068F0530
068F0531
068F0532
068F0533
Contents
1 pc. orifice
1 pc. Al. gasket
1 pc. cap for coil
Upper part:
Contents:
Code no. 068F0540
10 pcs. filters
10 pcs. Al. gaskets
Code no. 068F5045
1pc. armature
1pc. armature tube
1pc. Al. gasket
Contents:
25 pcs. Al gaskets
AKVA 15
Piston
Type
AKVA 15-1
AKVA 15-2
AKVA 15-3
AKVA 15-4
Code no.
068F5265
068F5266
068F5267
068F5268
Orifice set: Code no. 068F5261
Contents: Main orifice
Pilot orifice
Al gaskets
O-rings
Gasket
Contents
1
1
1
2
pc.piston assembly
pc. gasket
pc. O-ring
pcs. labels
Contents: 1pc. armature
1pc. armature tube
1pc. Al. gasket
Gasket set: Code no. 068F5264
Contents: Complete gasket set
Contents:
25 pcs. Al gaskets
Filter:
Code no. 068F0540
Contents: 10 pcs. filters
10 pcs. Al. gaskets
AKVA 20
Piston
Type
AKVA 20-0.6
AKVA 20-1
AKVA 20-2
AKVA 20-3
AKVA 20-4
AKVA 20-5
Code no.
042H2039
042H2040
042H2041
042H2042
042H2043
042H2044
Gasket set:
Contents:
Contents
1 pc. piston assembly
3 pcs. O-rings
Content:
1pc. armature
1pc. armature tube
1pc. Al. gasket
Orifice set
Type
AKVA 20-0.6
AKVA 20-1
AKVA 20-2
AKVA 20-3
AKVA 20-4
AKVA 20-5
AKVA 10, 15, 20
Code no.
068F5270
068F5270
068F5270
068F5270
068F5271
068F5271
Code no. 042H0160
Complete gasket set for
new and old valves
Contents
2 pcs. Al. gaskets
O-ring
Contents:
25 pcs. Al. gaskets
2 pcs. Al. gaskets
O-ring
RK.0Y.G2.02
©
Danfoss
12/2002
67
TQ / PHTQ
TQ and PHTQ is electronically operated expansion valves
designed for refrigerating systems. The TQ/PHTQ valves are
normally controlled by a controller from the Danfoss’ range
of ADAP-KOOL®- Refrigeration control system.
The TQ/PHTQ valves consists of 4 main components:
• Orifice assembly
• Valve body
• Actuator
• Flanges
the size of the orifice of the valve in question. A valve with
orifice 3 will for example be designated TQ 5-3.
The TQ/PHTQ valves covers a capacity range from 15 kW to
2200 kW (R 22) for each evaporator.
TQ/PHTQ can be used with advantage for finned
evaporators and liquid coolers designed for dry evaporation.
The main function is to control the liquid supply to
evaporators with dry evaporation, in for example:
• Air coolers
• Liquid coolers
• Heat pump plant
• Air conditioning plant
• Marine refrigeration plant
Features
• The system is not affected by changes in condensing
pressure
• The system compensates for changes in subcooling
ahead of the expansion valve
• The system adjusts itself quickly and precisely even to
large load changes
• Low superheat gives maximum utilization of the evaporator
68
RK.0Y.G2.02
© Danfoss
Technical data
Expansion valve type TQ/PHTQ
Refrigerant
R22, R134a, R404A/ R507 1)
Range
-40 to +10°C 2)
Test pressure
Max. 26.5 bar
Operating pressure
PB = 22 bar
Ambient temperature
Operation:
Transpor t:
1)
For other refrigerants, please contact Danfoss
2)
For other ranges, please contact Danfoss
max. 50°C
max. 70°C
Actuator
Ambient temperature
Operation:
Transpor t:
-30 to +60°C
-30 to +70°C
Voltage supply
24 V pulsating a.c.
Consumption
- operation
- star t
50 VA
75 VA
Enclosure
IP 55 to IEC 529 with cap fitted
Screwed cable entry
Pg 13.5
12/2002
TQ/PHTQ
Example, sizing and ordering
Correction factor k
When sizing, the evaporator capacity must be multiplied by
a correction factor k, depending on refrigerant subcooling
∆ts ahead of the expansion valve.
Refrigerant: R 22
Valve connection: solder straightway
Evaporator capacity: Qe = 50 kW
Evaporating temperature: te = −10°C
(pe = 3.6 bar gauge pressure)
(pc = 14.1 bar gauge pressure)
Subcooling = 10 K
Evaporator placed 6 m higher than receiver
Evaporating pressure pe to be subtracted from condensing
pressure pc
pc − pe = 14.1 − 3.6 = 10.5 bar
To determine the actual pressure drop across the expansion
valve, a series of other pressure drops must be considered
in addition to pc − pe:
1. Pressure drop ∆p1 in liquid line: ∆p1 ≈ 0.1 bar
2. Assumed pressure drop ∆p2 in filter drier, sight glass, manual shut-off valve and pipe bends, ∆p2 ≈ 0.2 bar
3. Pressure drop ∆p3 in vertical liquid line (because of
height difference h = 6 m), see table below,
∆p3 = 0.7 bar
Refrigerant
6m
12 m
18 m
24 m
30 m
0.7
1.4
2.1
2.8
3.5
R 134a
0.7
1.4
2.1
2.8
3.6
R 404A
0.6
1.3
1.9
2.5
3.2
R 507
0.6
1.3
1.9
2.5
3.2
0
4
10
20
30
40
k
1.11
1.00
0.91
0.80
0.74
0.69
Correction factor for 10 K subcooling = 0.91.
Corrected evaporator capacity = 50 × 0.91 =
45.5 kW.
The capacity table shows that a TQ 20-2 is suitable.
Ordering
Orifice assembly
Valve body
Actuator
=
=
=
068F2034
068B4021
068F3207
TQ 20-3, 7⁄8 × 11⁄8 in. solder connection
Actuator
Static pressure drop, ∆p3 bar
at height difference h
between evaporator and receiver
R 22
∆tsK
Orifice assy.
+
068F3207
table 3
4. Pressure drop ∆p4 in liquid distributor,
∆p4 ≈ 0.5 bar
Valve house
+
068F2034
table 1
068B4021
table 2
5. Pressure drop ∆p5 in distributor tubes,
∆p5 ≈ 0.5 bar
Total pressure drop across expansion valve
∆p = (pc − pe) − (∆p1 + ∆p2 + ∆p3 + ∆p4 + ∆p5)
∆p ≈ 10.5 − (0.1 + 0.2 + 0.7 + 0.5 + 0.5)
∆p ≈ 10.5 − 2.0
∆p ≈ 8.5 bar
TQ/PHTQ
RK.0Y.G2.02
©
Danfoss
12/2002
69
Ordering
The valve consists of four main components that must be
ordered separately
1. Orifice assembly
2. Valve body
3. Actuator
4. Flanges if applicable (TQ 20 available
fitted with flanges, see code no.)
TQ 5
TQ 20
TQ 55
PHTQ
1
1. Orifice assembly )
Capacity 2)
Symbol
Valve type
Tons (TR)
Orifice Orifice assembly
no.
Code no.
kW
R 22
R 134a
R 404A/
R 507
R 22
R 134a
R 404A/
R 507
TQ 5-1
4.1
3.1
3.1
14.5
10.8
11
1
068F2041
TQ 5-2
6.8
5.1
4.9
24
18.0
17.6
2
068F2042
TQ 5-3
8.5
7.4
7.4
30
26.4
26.4
3
068F2043
TQ 20-1
10.8
7.9
8.3
38
27.6
29.7
1
068F2033
TQ 20-2
17.3
12.6
13.3
61
44.4
47.3
2
068F2034
TQ 20-3
25.3
18.3
19.6
89
64.8
68.2
3
068F2035
TQ 20-4
33.9
23.8
25.4
119
84.0
89.1
4
068F2036
TQ 20-5
37.9
27.2
29.1
133
96.0
102
5
068F2037
TQ 55-0.3
23.4
15.1
18.0
82
63.0
63.6
0.3
068F2045
TQ 55-0.5
39.0
25.3
30.1
137
106
106
0.5
068F2046
TQ 55-0.7
54.6
35.4
42.1
192
149
148
0.7
068F2047
TQ 55-1
78.1
60.7
60.2
275
213
212
1
068F2048
TQ 55-2
114.7
87.9
87.8
404
309
310
2
068F2049
Capacity 2)
Symbol
Valve type
Tons (TR)
R 22
R 134a
Pilot orifice
Code no.
kW
R 404A/
R 507
R 22
R 134a
R 404A/
R 507
PHTQ 85-1
41.1
32
31.5
145
112
111
068F2041
PHTQ 85-2
61.3
47.7
47.3
216
168
167
068F2041
PHTQ 85-3
100.8
76.6
77.6
355
270
273
068F2041
PHTQ 85-4
173.8
132
133
612
465
469
068F2041
PHTQ 125-1
243.4
185
186
857
654
657
068F2041
PHTQ 300-1
399.3
304
306
1406
1071
1079
068F2041
PHTQ 300-2
618.7
468
474
2179
1650
1669
068F2041
1)
To ensure a correct supply of refrigerant there must be external pressure equalization from the actuator to
the valve outlet
2) Capacities are based on an evaporating temperature t = +5°C, a condensing temperature t = +32°C and a liquid
e
c
temperature ahead of valve tl = +28°C
70
RK.0Y.G2.02
© Danfoss
12/2002
TQ/PHTQ
Ordering, expansion valve type TQ / PHTQ
2. Valve body
Valve type
Connection
Orifice
assembly
no.
in.
1⁄
1-2
1⁄
TQ 5
1-3
1⁄
2×
2×
2×
5⁄
5⁄
7⁄
Code no.
mm
Angleway
flare × flare
068B4013
068B4009
068B4007
12 × 16
068B4013
068B4004
068B4002
12 × 16
068B4013
8
8
7⁄
1-2
7⁄
8
068B4010
068B4008
068B4005
068B4003
068B4022
8
16 × 22
TQ 20
068B4020
068B4025 3)
068B4027 3)
×1
TQ 55
0.3-2
PHTQ 85
PHTQ 125
PHTQ 300
ODF x ODM
ODM x ODM
Valve body with flanges
Flanges
PHT
068B4026 3)
22 × 28
7⁄
Flange
ODF × ODF
068B4018
22 × 25
1-5
1)
2)
3)
4)
8×
Straightway
ODF × ODF
068B4013
8
12 × 22
5⁄
Angleway
ODF × ODF
1
8 × 1 ⁄8
068B4015 3)
068B4017 1) 068B4016 1)
068B4023 1) 068B4021 1)
11⁄8 × 13⁄8
068G4004 2) 068G4003 2)
28 × 35
068G4002 2) 068G4001 2)
1
4)
026H0160
2
4)
026H0161
3
4)
026H0162
4
4)
026H0163
1
4)
026H0164
1
4)
026H0165
2
4)
026H0166
ODF = internal diameter
ODM = external diameter
3. Actuator
Valve type
Code no.
TQ 5 Solder
068F3211
TQ 5 flare
068F3209
TQ 20 flare 1)
068F3207
TQ 55 flare 1)
068F3208
PHTQ solder
068F3212
PHTQ flare
068F3205
Adapter for solder connection1)
068B0170
Adapter for solder connection of 1⁄4 in. Cu-tube
1) Actuator with solder connection, please order an adaptor for solder
connection, code no. 068B0170
4. Flanges
Valve type
Connection
in.
PHTQ 85
1
PHTQ 85
11⁄8
PHTQ 85
mm
Code no.
Weld
Solder
027N1025
027L1029
28
027L1028
PHTQ 85
13⁄8
PHTQ 125
11⁄4
PHTQ 300-1
11⁄2
027N1040
PHTQ 300-2
2
027N1050
35
027L1035
027N1032
Technical brochure: RD.8A.L
The valve is also available in a version for NH3 (type =
TEAQ).
Data sheet RD.8A.R
TQ/PHTQ
RK.0Y.G2.02
©
Danfoss
12/2002
71
Evaporating pressure valve
KVQ
KVQ is an electronically operated evaporating pressure
valve designed for small refrigerating systems. The KVQ
valve is normally controlled by a controller from the Danfoss’
range of ADAP-KOOL®- Refrigeration control system.
The KVQ valve consists of 2 main components:
• Actuator
• Valve
The valve can be used in small refrigerating systems, e.g.
supermarket installations and cold rooms for fruit, vegetables
and meat products.
The valve functions as an evaporating pressure valve. A
modulating voltage signal is transmitted to the actuator from
the controller. The signal is supplied in pulse sequences of
up to 10 sec. duration.
The evaporating pressure rises when the valve closes. By
varying the amount of power applied the controller ensures
correct positioning of the valve plate. The evaporating
pressure will therefore maintain the value resulting in the
correct media temperature. Changes of the suction pressure
are of no consequence, as the area of the bellows equals the
orifice area. If the supply voltage is cut out, the valve opens.
Features
• Accurate pressure control
• Capacity: 8 to 19 kW (R22)
• All fluorinated refrigerants
• Regulating range: 0 - 7 bar
Technical data
Regulating range
Refrigerent temperature
in regulating range
Refrigerants
P0 = 0 to 7 bar
Refrigerant
po = 0 bar
(pe)
po = 7 bar
(pe)
R 22
- 41°C
15°C
R 134a
- 30°C
32.5°C
R 404A
- 47°C
10°C
R 407C
– 35°C
17°C
R 507
– 47°C
8°C
CFC, HCFC and HFC
During operation:
-45 to 40°C
During transpor t:
-50 to
+70°C
Ambient temperature
Max. working pressure
PB
Approvals
CSUS listed, fil SA7200
21.5 bar
Max. test pressure p'
28 bar
Power supply
24 V pulsating a.c. from regulator
Max. consumption
35 VA / 24 V a.c.
Enclosure
IP 54 according to IEC 529
Cable entry
Pg 13.5
During forced closing by hot-gas defrosting
72
RK.0Y.G2.02
©
Danfoss
Max. closing pressure
17.5 bar
Max. hot gas
temperature
120°C
12/2002
KVQ
Capacity
Capacity in kW
Refrigerant
R 22
R 134a
R 404A/
R 507
R 407C
KVQ 15-22
te
KVQ 28-35
Pressure drop ∆p bar
°C
0.05
0.1
−40
2.1
2.9
0.2
0.3
3.9
4.6
0.5
0.7
5.3
5.6
0.05
0.1
4.9
0.3
0.5
0.7
6.8
0.2
9.3
10.8
12.5
12.9
−30
2.7
3.7
5.1
6.1
7.5
8.2
6.3
8.8
12.1
14.4
17.5
19.3
−20
3.3
4.7
6.5
7.8
9.7
11.1
7.9
11.0
15.3
18.4
22.9
26.0
−10
4.1
5.7
8.0
9.7
12.2
14.1
9.6
13.5
18.9
22.9
28.8
33.2
0
4.9
6.9
9.7
11.8
14.9
17.4
11.6
16.3
22.9
27.8
35.3
41.0
49.5
+10
5.8
8.2
11.6
14.1
17.9
21.0
13.8
19.4
27.3
33.2
42.3
−30
1.8
2.6
3.5
4.1
4.7
4.9
4.4
6.1
8.2
9.6
11.0
11.2
−20
2.4
3.3
4.6
5.5
6.6
7.2
5.7
7.9
10.9
12.8
15.5
17.0
−10
3.1
4.3
6.0
7.2
8.9
10.0
7.3
10.2
14.1
17.0
21.0
23.6
0
3.8
5.4
7.5
9.0
11.3
13.0
9.0
12.7
17.7
21.5
27.0
30.7
38.8
+10
4.7
6.6
9.3
11.2
14.1
16.4
11.1
15.7
22.0
26.5
33.5
−40
1.8
2.4
3.3
3.9
4.7
5.0
4.1
5.8
7.9
9.2
11.0
11.9
−30
2.2
3.2
4.5
5.3
6.5
7.3
5.4
7.5
10.4
12.4
15.3
17.2
22.9
−20
2.9
4.0
5.6
6.8
8.5
9.7
6.8
9.4
13.2
15.9
20.0
−10
3.6
5.1
7.2
8.7
10.9
12.7
8.6
12.1
16.9
20.5
26.0
30.0
0
4.5
6.2
8.8
10.8
13.6
16.0
10.5
14.8
20.8
25.3
32.2
37.5
+10
5.4
7.6
10.7
13.1
16.7
19.5
12.7
18.0
25.3
30.7
39.3
46.0
−40
1.7
2.3
3.1
3.6
4.2
4.4
3.9
5.4
7.3
8.5
9.9
10.2
−30
2.3
3.1
4.3
5.2
6.4
7.0
5.4
7.5
10.3
12.2
14.9
16.4
−20
2.9
4.1
5.7
6.9
8.5
9.8
7.0
9.7
13.5
16.2
20.2
22.9
−10
3.7
5.2
7.3
8.8
11.1
12.8
8.7
12.3
17.2
20.8
26.2
30.2
0
4.6
6.5
9.1
11.1
14.0
16.4
10.9
15.3
21.5
26.1
33.2
38.5
+10
5.6
8.0
11.3
13.7
17.4
20.4
13.4
18.8
26.5
32.2
41.0
48.0
1 kW = 0.284 ton (TR)
The values in the capacity table refer to the
evaporator capacity and are based on liquid
temperature tl = +25°C ahead of the thermostatic
expansion valve.
Dry, saturated vapour ahead of the KVQ valve
is assumed.
Correction factors for liquid tremperature tl
tl °C
R 134a
R 22
R 404A/ R 507
R 407C
10
0.88
0.90
0.84
0.88
15
0.92
0.93
0.89
0.91
20
0.96
0.96
0.94
0.95
25
1.0
1.0
1.0
1.0
30
1.05
1.05
1.07
1.05
35
1.10
1.10
1.16
1.11
40
1.16
1.13
1.26
1.18
45
1.23
1.18
1.40
1.26
50
1.31
1.24
1.57
1.35
Ordering
Nominal capacity 1)
kW
Type
R 22
1)
R 134a
R 404A/R 507
Valve
Connection
R 407C
mm
in.
Actuator
Code no.
KVQ 15
8.0
6.0
7.2
7.3
16
5/8
034L0117
KVQ 22
8.0
6.0
7.2
7.3
22
7/8
034L0114
KVQ 28
18.9
14.1
16.9
17.2
11/8
034L0115
KVQ 35
18.9
14.1
16.9
17.2
13/8
034L0120
28
35
Code no.
034L0105
034L0119
034L0106
Rated capacity is the valve capacity at
evaporating temperature te = −10°C,
condensing temperature tc = +25°C and
pressure drop across valve ∆p = 0.2 bar.
1 kW = 0.284 ton (TR).
Technical brochure: RD.8A.U
KVQ
RK.0Y.G2.02
©
Danfoss
12/2002
73
Pilot valve
CVQ
Electronically operated constant-pressure pilot valve, type
CVQ (pressure-dependent)
CVQ is an electronically operated constant-pressure pilot
valve that functions together with electronic controllers in the
EKC 360 series..
CVQ enables the electronic (and thus the remote) control of
a PM main valve.
The CVQ valve is used to maintain a constant pressure at the
PM main valve inlet side and can, via suction pressure
regulation, very accurately control the temperature of a
medium from an air or liquid cooler, etc.
Ordering
Valve
type
MWP
kv-value
Pressure range
Code no.
CVQ
17 bar
0.45 m3/h
CVQ
17 bar
CVQ
17 bar
-1 bar g - 5 bar
027B1139
3
0 bar g - 6 bar
027B1140
3
1.7 bar g . 8 bar
027B1141
0.45 m /h
0.45 m /h
The P-band for a valve system regulated by CVQ and PM
depends on the control parameters of the EKC 360
controllers.
Electrical data
The valve is also available in a version for high pressure.
Type = CVMQ
Supply voltage
24V a.c. ±10%
Frequency
50 - 60 Hz
Power consumption
operation
star t
Enclosure
NEMA 3 / IP 55
Cable entr y
Pg 13.5
Ambient temperature
operation
transpor t
-marking
50 VA
75 VA
–30 - 50°C (–22 - 122°F)
–50 - 70°C (–58 - 158°F)
EMC-Directive 89/336/EEC,
EMC-Directive 89/336/
EN 50081-1 and EN 50082-1
Main valve and capacities!
Please refer literature for the PM valve.
74
RK.0Y.G2.02
©
Danfoss
12/2002
CVQ
Coils for solenoid valves
The coils are used together with expansion valves types
AKV and AKVA.
Data
3-core cable
The external thread in the screwed cable entry suits flexible
steel hose or corresponding cable protection.
Terminal box
Leads are connected to terminal screws in the terminal box.
The box is fitted with a Pg 13.5 screwed entry for 6 → 14
mm cable.
Max. lead cross section: 2.5 mm2.
Enclosure
IP 67
Coils for AKV and AKVA valves
Type
Voltage
Cable / terminal box / DIN plug
230 V d.c.
With 4 m cable
Power consumption
Code no.
18 W
018F6278
With 2.5 m cable
018F6288
With 8 m cable
018F6279
With terminal box
230 V d.c.
018F6781
18 W
Without terminal box
24 V a.c.
Spoler til ekspansionsventiler
RK.0Y.G2.02
018F6991
12 W, 50 Hz
018F6807
12 W, 60 Hz
018F6815
With terminal box
©
Danfoss
12/2002
20 W, 50 Hz
018F6901
20 W, 60 Hz
018F6902
75
Temperature sensors
AKS 11, AKS 12, AKS 21
The sensor unit consists of a platinum element the
resistance value of which changes proportionally with the
temperature. Pt 1000 ohm sensor (1000 ohm at 0°C).
The sensors are adjusted and meet the tolerance
requirements of DIN IEC 751 class B.
EKS 111
The sensor is based on a PTC element with a resistance of
1000 ohm at 25°C.
This sensor is primarily used in combination with
controllers types EKC 101, EKC 201 and EKC 301.
Type
AKS 11 *)
Description
Surface and duct
sensor
Temperature Sensor/
range
sensor body
°C
Toppar t: PPO
(Noryl)
-50 to +100
Bottom: Stainless
Steel
EnConnection/closure
cable
PVC cable,
2 x 0.2 mm2
IP 67
Time
constant
in
seconds
3 1)
10 2)
35 3)
Cable
length
m
AKS 21A
** )
AKS 21M
Air temperature
sensor
*)
**)
***)
18/8 Stainless steel
-70 to +180
Surface sensor with
screened cable and
clip
Fire-resistive
silicone
1
8
/
8
S
t
a
i
n
l
e
s
s
s
t
e
e
l
-70 to +180
rubber cable
2 x 0.2 mm2
Multipurpose
sensor
-70 to +180
Air temperature
sensor
(PTC element)
Immersion sensor:
18/8 stainless steel
Fire-resistive
tube
silicone
-70 to +180 Weld nipple:Free
rubber cable
cutting steel
2 x 0.2 mm2
Thread nipple:Free
cutting steel
-55 to 100
Stainless steel AISI PVC cable
304
1) Agitated liquid.
2) Clamped to pipe.
3) Air 4 m/s.
Recommended for measuring superheat
Recommended for hotgas systems
not for measuring superheat/
not for safety log
76
PVC cable
2 x 0.22 mm2
Surface sensor with
clip
Immersion sensor
with cable and
AKS 21W
senor pocket, Weld
version
EKS 111
*** )
-40 to 80
RK.0Y.G2.02
©
Danfoss
12/2002
IP 67
IP 67
IP 56
IP 67
15
1)
6 1)
14 2)
35 3)
18
30
1)
Code no.
3.5 m
1
084N0003
3.5 m with
AMP plug
128
084N0050
5.5 m
1
084N0005
5.5 m with
AMP plug
92
084N0051
8.5 m
1
084N0008
8.5 m with
AMP plug
70
084N0052
1
084N0036
1.5 m
AKS 12
Number
30
084N0035
3.5 m
30
084N0039
5.5 m
30
084N0038
5.5 m with
AMP plug
30
084N0037
13.5 m
20
084N0034
2.5 m
1
084N2007
5.0 m
1
084N2008
2.0 m
1
084N2024
2.5 m
1
084N2003
2.5 m
1
084N2017
084N1175
1.5 m
10
1.5 m
330
084N1161
3.5 m
150
084N1163
6m
90
084N1173
8.5 m
60
084N1168
1.5 m with
AMP plug
330
084N1174
3.5 m with
AMP plug
150
084N1170
6 m with
AMP plug
80
084N1171
1)
We have a wider range of
sensors than the ones shown
here. Cf. also data sheet
RD.5F.K.
Temperature sensors
AKS 11, AKS 12, AKS 21
°C
ohm
°C
0
1
2
3
4
5
1000.0
1003.9
1007.8
1011.7
1015.6
1019.5
−1
−2
−3
−4
−5
1000.0
996.1
992.2
988.3
984.4
980.4
6
7
8
9
10
1023.4
1027.3
1031.2
1035.1
1039.0
−6
−7
−8
−9
−10
976.5
972.6
968.7
964.8
960.9
11
12
13
14
15
1042.9
1046.8
1050.7
1054.6
1058.5
−11
−12
−13
−14
−15
956.9
953.0
949.1
945.2
941.2
16
17
18
19
20
1062.4
1066.3
1070.2
1074.0
1077.9
−16
−17
−18
−19
−20
937.3
933.4
929.5
925.5
921.6
21
22
23
24
25
1081.8
1085.7
1089.6
1093.5
1097.3
−21
−22
−23
−24
−25
917.7
913.7
909.8
905.9
901.9
26
27
28
29
30
1101.2
1105.1
1109.0
1112.8
1167.7
−26
−27
−28
−29
−30
898.0
894.0
890.1
886.2
882.2
31
32
33
34
35
1120.6
1124.5
1128.3
1132.2
1136.1
−31
−32
−33
−34
−35
878.3
874.3
870.4
866.4
862.5
36
37
38
39
40
1139.9
1143.8
1147.7
1151.5
1155.4
−36
−37
−38
−39
−40
858.5
854.6
850.6
846.7
842.7
41
42
43
44
45
1159.3
1163.1
1167.0
1170.8
1174.7
−41
−42
−43
−44
−45
838.8
835.0
830.8
826.9
822.9
46
47
48
49
50
1178.5
1182.4
1186.3
1190.1
1194.0
−46
−47
−48
−49
−50
818.9
815.0
811.0
807.0
803.1
AKS 11
ohm
AKS 12
AKS 21A,
AKS 21M
AKS 21W
AKS 21W
in welded version
Pocket in welded version
for AKS 21W
~ 3.9 ohm/K
R (Typ.)
Ohm
Temp.
°C
Error
K
Temp.
°F
+/-3.5
212
1679
100
1575
90
194
1475
80
176
1378
70
158
1286
60
140
1196
50
122
1111
40
104
1029
30
990
25
951
20
68
877
10
50
807
0
32
740
-10
14
677
-20
-4
617
-30
-22
-40
562
-40
510
-50
485
-55
Temperature sensor
86
+/-1.3
77
-58
+/-3.0
-67
RK.0Y.G2.02
The sensor has a relatively big tolerance on the resistance.
This means that the sensor cannot be employed for measuring
values used for food safety logs or regulation of superheat.
EKS 111
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Pressure transmitters
AKS 32, AKS 33 and AKS 32R
Introduction
AKS 32 and AKS 33 are pressure transmitters that measure
a pressure and convert the measured value to a standard
signal:
• 1 → 5 V d.c. for AKS 32
• 4 → 20 mA for AKS 33
AKS 32R is a ratiometric pressure transmitter that converts
the measured pressure to a linear output signal. The min.
value of the output signal is 10% of the actual supply
voltage. The max. value is 90% of the actual supply voltage.
At a supply voltage of 5 V, a linear output signal is thus
obtained, i.e.
0.5 V at min. pressure of the pressure transmitter
4.5 V at max. pressure of the pressure transmitter
Application:
• A/C systems
• Refrigeration plant
• Process control
• Laboratories
Features
Highly developed sensor technology means high pressure
regulation accuracy, a very important factor in the precise
and energy-economic capacity regulation of refrigeration
plant.
• Temperature compensation for LP and HP
pressure transmitters, developed specially for
refrigeration plant:
LP: −30 → +40°C (≤16 bar)
HP: 0 → +80°C (>16 bar)
• Compatibility with all refrigerants incl. ammonia means
less stock and greater application flexibility.
• Effective protection against moisture means that the
sensor can be mounted in very harsh environments, e.g.
in the suction line encapsulated in an ice block.
• Robust construction gives protection against mechanical
influences such as shock, vibration and pressure surge.
AKS sensors can be mounted direct on to the plant.
• No adjustment necessary. With the highly developed
sensor technology and sealed gauge principle, the
accuracy of the factory setting is maintained independent
of variations in ambient temperature and atmospheric
pressure. This is very important when ensuring
evaporating pressure control in air conditioning and
refrigeration applications.
• Built-in voltage stabiliser
• EMC protection according to EU
EMC-directive (CE-marked)
• UL approved
Output signal
AKS 32R
AKS 32, AKS 33
The diagram indicates the relationship between output signal
from AKS 32 R, supply voltage and pressure.
Upper working
range
78
RK.0Y.G2.02
Vsupply = Voltage supply
©
Danfoss
12/2002
AKS 32, 33, 32R
Ordering
AKS 32, version 1 → 5 V
Operating range
bar
Max. Working
pressure PB
bar
Compensated
temperature
range
°C
-1 to 6
33
-30 to +40
Code no.
DIN 43650 plug
Cable
1/4 NPT 1)
G 3/8 A 2)
1/4 flare 3)
060G2000
060G2004
060G2068
-1 to 12
33
-30 to +40
060G2001
060G2005
060G2069
-1 to 20
40
0 to +80
060G2002
060G2006
060G2070
-1 to 34
55
0 to +80
060G2003
060G2007
060G2071
Max. working
pressure PB
bar
Compensated
temperature
range
°C
1/4 NPT 1)
1/4 flare 3)
060G2017
060G2073
AKS 33, version 4 → 20 mA
Operating range
bar
Code no.
DIN 43650 plug
Cable
1/4 NPT 1)
G 3/8 A 2)
1/4 flare 3)
060G2047
1/4 NPT 1)
G 3/8 A 2)
060G2116
060G2120
-1 to 5
33
-30 to +40
060G2112
060G2108
-1 to 6
33
-30 to +40
060G2100
060G2104
060G2048
-1 to 9
33
-30 to +40
060G2113
060G2111
060G2044
-1 to 12
33
-30 to +40
060G2101
060G2105
060G2049
060G2117
1/4 flare 3)
060G2062
-1 to 20
40
0 to +80
060G2102
060G2106
060G2050
060G2118
-1 to 34
55
0 to +80
060G2103
060G2107
060G2051
060G2119
0 to 16
40
0 to +80
060G2114
060G2109
0 to 25
40
0 to +80
060G2115
060G2110
Operating range
bar
Max. working
pressure PB
bar
Compensated
temperature
range
°C
1/4 NPT 1)
G 3/8 A 2)
1/4 flare 3)
3/8 solder
-1 to 12
33
-30 to +40
060G1037
060G1038
060G1036
060G3551
-1 to 34
55
0 to +80
060G0090
060G3552
060G2045
060G2065
060G2127
060G2067
AKS 32R
Code no.
Connecting plug with 5 m cable
(mounted on pressure transmitter obtains IP67)
060G1034
1) 1/4-18 NPT.
2) Thread ISO 228/1 - G 3/8 A (BSP).
3) 7/16-20 UNF.
AKS 32, 33, 32R
RK.0Y.G2.02
©
Danfoss
12/2002
79
Dimensions and weights
AKS 32, AKS 33
AKS 32R
Cable version
Version with DIN 43650 plug
Pressure
Connection
1⁄ -18 NPT
4
G 3⁄8 A
1⁄
4
in. flare
ISO 228/1
7⁄ -20 UNF
16
L1 [mm]
122
127
122.5
L [mm]
16
18
16,5
Weight approx. 0.3 kg
AKS 32 and AKS 33
Technical leaflet: RD.5G.H
AKS 32R
Technical leaflet: RD.5G.J
80
RK.0Y.G2.02
© Danfoss
12/2002
Components for liquid level control
AKS 41
Introduction
AKS 41 is a liquid level transmitter used to measure the
liquid level in refrigerant vessels.
Application
• Together with controller type EKC 347
• Supports the following refrigerants:
- R 717
- R 22
- R 404A
- R 134a
Further information
Technical brochure: RD.8A.A
SMV / SMVE
Introduction
SMV and SMVE are motors for valves types MEV and MRV,
The SMV motor operates the valve with a three-point control
unit (open – neutral – closed), whereas the SMVE motor
operates the valve by means of an analog signal.
Application
• SMV: In conjunction with a three-point controller
• SMVE: In conjunction with controller type EKC 347
Further information
SMV / SMVE
Technical brochure: RD.4M.A
Valves type MEV / MRV
Technicial brochure: RD.4A.J
AKS 45
Introduction
AKS 45 is a transmitter capable of giving a 4-20 mA signal
on the valve’s opening degree.
Application
• In conjunction with valve type MEV, MRV or PM
• In conjunction with controller type EKC 347
• In conjunction with a PLC
Further information
Technical brochure: RD.3E.A
RK.0Y.G2.02
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81
38E
Introduction
38E is a liquid level transmitter used to measure the liquid
level in refrigerant vessels.
Application
• In conjunction with amplifier 38E
• In conjunction with amplifier type EKA 38E and controller
type EKC 347.
• Supports the following refrigerants:
- R 717
- R 22
- R 404A
- R 134a
Further information
Technical brochure: RD.2E.A
82
RK.0Y.G2.02
© Danfoss
12/2002
RK.0Y.G2.02
©
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12/2002
83
84
RK.0Y.G2.02
© Danfoss
12/2002
The Danfoss product range for the refrigeration
and air conditioning industry:
Compressors for refrigeration and air conditioning
These products include hermetic reciprocating compressors, scroll compressors and fan-cooled condensing units. Typical applications are air conditioning
units, water chillers and commercial refrigeration systems.
Compressors and Condensing Units
This part of the range includes hermetic compressors and fan-cooled condensing units for household refrigerators and freezers, and for commercial units such
as bottle coolers and drinks dispensers . We also offer compressors for heat
pumps, and 12 and 24 V compressors for refrigerators and freezers in
commercial vehicles and boats.
Appliance controls
For the regulation of refrigeration appliances and freezers Danfoss supplies a
product range of electromechanical thermostats produced according to customer specifications; electronic temperature controls comprising models with
and without displays; service thermostats – for servicing on all refrigerating and
freezing appliances.
Refrigeration and air conditioning controls
Our full product range covers all control, safety, system protection and
monitoring requirements in mechanically and electronically controlled refrigeration and air conditioning systems. The products are used in countless applications within the commercial and industrial refrigeration and air conditioning
sectors.
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
already on order provided that such alternations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respecitve companies. Danfoss and Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
RK0YG202
© Danfoss A/S (RC-ET), 12 - 2002

Electronic controls Catalogue

Transcripción

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