WURM ANI-1F3 is a rack and gas cooler control module for CO2 refrigeration plants. It features a standard rack controller with 2 or 3 compressors controlled by evaporation temperature, high and medium pressure control, and gas cooler fan control. Additional control circuits are available for LT single machine, LT single machine 2, LT desuperheater, liquid injection, refrigerant monitoring, 6-step heat recovery, air conditioning, bypass valve for the inner heat exchanger, and control cabinet monitoring.
WURM ANI-1F3 is a rack and gas cooler control module for CO2 refrigeration plants. It features a standard rack controller with 2 or 3 compressors controlled by evaporation temperature, high and medium pressure control, and gas cooler fan control. Additional control circuits are available for LT single machine, LT single machine 2, LT desuperheater, liquid injection, refrigerant monitoring, 6-step heat recovery, air conditioning, bypass valve for the inner heat exchanger, and control cabinet monitoring.
Module for process control in CO2 refrigeration plants with rack and gas cooler control
ANI-1F3-A_V2.1.6_PI_2023-04_EN 1
Subject to technical changes
ANI-1F3-A
1 ANI-1F3-A
Module for process control in CO2 refrigeration plants with rack and gas cooler control
1.1 Front view
Fig. 1: Front view with ANI-C control panel
1.2 Features
• Standard rack controller with 2 or 3 compressors controlled by evaporation temperature
- Compressor 1 modulated (FC), compressors 2 and 3 controlled directly or stepped (CR
50 / 100%)
- Frigotakt+ and Frigotakt-G4
- Base load change
- Monitoring of suction gas temperature and hot gas temperature
- Oscillation protection function
- Blocking time after compressor fault
- 3-step load shedding including Fastreturn
- Operating hours counter and cycle counter for each compressor
- Proactive oil return
• High pressure and medium pressure control
• Gas cooler fan control also via Modbus
• Additional control circuits for:
- LT single machine and LT single machine 2
- LT desuperheater
- Liquid injection
- Refrigerant monitoring
- 6-step heat recovery
- Air conditioning
- Bypass valve for the inner heat exchanger
- Control cabinet monitoring
• Integrated relay outputs
• CAN bus connection via patch cable and screw terminals
• Fastening by top-hat rail
• Can be locked to prevent unwanted parameter adjustment (SAC – Security Access Control)
• Connection to the Wurm system via Wurm CAN communication bus (C-BUS) and
FRIGODATA XP
Accessories
• Control panel (ANI-C)
Module for process control in CO2 refrigeration plants with rack and gas cooler control
2 ANI-1F3-A_V2.1.6_PI_2023-04_EN
Subject to technical changes
ANI-1F3-A
Contents
1 ANI-1F3-A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.1 Front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.3 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.4 Circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Functional earth (FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4.1 Input circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Digital inputs DI 1 - DI 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Analogue inputs Uin 1, 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Analogue inputs Iin 1 - Iin 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Analogue inputs S 1 - S 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.4.2 Output circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Digital outputs (relays) K 1 - K 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Digital outputs (SSR) V 1 - V 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Analogue outputs Uout 1 - Uout 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.4.3 Communication circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.4.4 FIO001B/FIO-PAT circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . 12
Address 0 - extended HR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.4.5 FKV003 circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Address 1 - heat pump operation, air conditioning. . . . . . . . . . . . . . . . . . . . . . . . . 13
Address 2 - modulated gas cooler bypass, modulated IHE bypass . . . . . . . . . . . . 14
Address 3 - modulated hot gas bypass, modulated MT liquid injection . . . . . . . . . 14
1.5 Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Top-hat rail installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Dismantling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1.6 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Module for process control in CO2 refrigeration plants with rack and gas cooler control
ANI-1F3-A_V2.1.6_PI_2023-04_EN 3
Subject to technical changes
ANI-1F3-A
1.3 Safety instructions
Writing conventions
CAUTION
• Avoid the described hazard: Otherwise minor or medium bodily injury or property damage will
result.
WARNING
• Avoid the described hazard: Otherwise there is danger from electric voltage that can lead to
death or serious bodily injury.
For your safety
For safe operation and to avoid personal injury and equipment damage through operator error, always
read these instructions, become familiar with the device, and follow all safety instructions on the prod-
uct and in this document, as well as the safety guidelines of Wurm GmbH & Co. KG Elektronische
Systeme. Keep these instructions ready to hand for quick reference and pass them on with the device
if the product is sold. Wurm GmbH & Co. KG Elektronische Systeme accepts no liability in the case
of improper use or use for purposes other than the intended purpose.
WARNING
DANGER TO LIFE FROM ELECTRIC SHOCK AND/OR FIRE!
• Switch off the power to the entire plant when carrying out installation, wiring or disassembly work!
Otherwise, mains voltage and/or external voltage may still be present, even if the control voltage
is switched off!
• The wiring of the device must be carried out only by qualified electricians!
• Use the correct tools for any work!
• Check the entire wiring after connection!
• Observe the maximum loads for all connections!
• Never expose the device to moisture, for example due to condensation or cleaning agents.
• Stop operating the device if it is faulty or damaged and its safe operation is compromised!
• Do not open the device.
• Do not repair the device yourself! If the device requires repairs, send it in with an exact descrip-
tion of the fault!
CAUTION
ELECTROMAGNETIC INTERFERENCE MAY CAUSE FAULTS!
• Always use shielded data cables and place them far away from power lines.
Target group This manual is intended for "service technician" personnel.
Intended use The ANI-1F3-A is a process control module for CO2 refrigeration plants
with rack and gas cooler control.
Wurm Infocenter paperless info
Module for process control in CO2 refrigeration plants with rack and gas cooler control
4 ANI-1F3-A_V2.1.6_PI_2023-04_EN
Subject to technical changes
ANI-1F3-A
Version and validity of the documentation
Any versions not listed are special solutions for individual projects and are not described in detail in this document.
This document will automatically cease to be valid if a new technical description is issued.
Manufacturer: Wurm GmbH & Co. KG Elektronische Systeme, Morsbachtalstraße 30, D-42857 Remscheid
You can find more information on our website at www.wurm.de.
Version Date
V2.1.6 and
higher
2023-04 Documentation status
Module for process control in CO2 refrigeration plants with rack and gas cooler control
ANI-1F3-A_V2.1.6_PI_2023-04_EN 5
Subject to technical changes
ANI-1F3-A
1.4 Circuit diagram
Fig. 2: Circuit diagram
Power supply
Functional earth (FE)
NOTICE
• To ensure failure-free operation and reliable data communication, connect the functional earth.
Connect the functional earth connection via the enclosed earthing terminal and the pre-assem-
bled cable directly to the device with the earthed installation plate.
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Terminal Power supply Potential
98 Neutral N
99 230V~ L
Terminal Assignment
NShield
Module for process control in CO2 refrigeration plants with rack and gas cooler control
6 ANI-1F3-A_V2.1.6_PI_2023-04_EN
Subject to technical changes
ANI-1F3-A
1.4.1 Input circuit diagram
Fig. 3: Input circuit diagram
Digital inputs DI 1 - DI 20
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Terminal Digital input Potential Assignment
101 DI 1 230V~ Not available
111 N
102 DI 2 230V~ Night signal
112 N
103 DI 3 230V~ Load shedding 1
113 N
104 DI 4 230V~ HR request
114 N
105 DI 5 230V~ Pressure increase
request
115 N
106 DI 6 230V~ MT compressor 1
operating feedback
116 N
107 DI 7 230V~ MT compressor 2
operating feedback
117 N
108 DI 8 230V~ MT compressor 3
operating feedback
118 N
109 DI 9 230V~ LT compressor 1
operating feedback
119 N
110 DI 10 230V~ MT compressor 1
fault
120 N
121 DI 11 230V~ MT compressor 2
fault
131 N
122 DI 12 230V~ MT compressor 3
fault
132 N
123 DI 13 230V~ LT compressor 1 fault
133 N
124 DI 14 230V~ Min. refrigerant fault
134 N
Module for process control in CO2 refrigeration plants with rack and gas cooler control
ANI-1F3-A_V2.1.6_PI_2023-04_EN 7
Subject to technical changes
ANI-1F3-A
Analogue inputs Uin 1, 2
Analogue inputs Iin 1 - Iin 5
125 DI 15 230V~ Max. refrigerant fault
135 N
126 DI 16 230V~ LP rack fault
136 N
127 DI 17 230V~ HP rack fault
137 N
128 DI 18 230V~ GC fan fault
138 N
129 DI 19 230V~ Alarm input 1 (NC)
139 N
130 DI 20 230V~ Alarm input 2 (NC)
140 N
Terminal Analogue input Potential Assignment
41 Uin 1 GND Not available
42 0...10V
43 Uin 2 GND Not available
44 0...10V
Terminal Analogue input Potential Assignment
151 Iin 1 4...20mA p0 - MT 1
152 23V=
153 Iin 2 4...20mA p.mp
154 23V=
155 Iin 3 4...20mA p.gc
156 23V=
157 Iin 4 4...20mA p0 - LT
158 23V=
159 Iin 5 4...20mA p0 - MT 2 / heat pump
160 23V=
Terminal Digital input Potential Assignment
Module for process control in CO2 refrigeration plants with rack and gas cooler control
8 ANI-1F3-A_V2.1.6_PI_2023-04_EN
Subject to technical changes
ANI-1F3-A
Analogue inputs S 1 - S 16
* The outside temperature is sent over the CAN bus system.
NOTICE • Terminals 193/194 cannot be wired, they are empty.
Terminal Sensor input Sensor type Assignment
161/162 S 1 TRK MT rack suction gas
temperature
163/164 S 2 DGF MT rack hot gas tem-
perature
165/166 S 3 DGF LT compressor desu-
perheating tempera-
ture
167/168 S 4 TRK Outside temperature
*
169/170 S 5 DGF Gas cooler outlet
temperature / T.gc 1
171/172 S 6 DGF Gas cooler outlet
temperature / T.gc 2
173/174 S 7 DGF HR CO2 outlet tem-
perature
175/176 S 8 DGF HR medium outlet
temperature
177/178 S 9 DGF HR medium inlet tem-
perature
179/180 S 10 TRK Subcooler suction
gas temperature
181/182 S 11 TRK Subcooler liquid tem-
perature
183/184 S 12 TRK LT suction gas tem-
perature
185/186 S 13 DGF Gas cooler outlet
temperature
upstream of HPV
187/188 S 14 TRK HP suction gas tem-
perature
189/190 S 15 TRK HP defrost tempera-
ture
191/192 S 16 TRK Control cabinet sen-
sor
Module for process control in CO2 refrigeration plants with rack and gas cooler control
ANI-1F3-A_V2.1.6_PI_2023-04_EN 9
Subject to technical changes
ANI-1F3-A
1.4.2 Output circuit diagram
Fig. 4: Output circuit diagram
Digital outputs (relays) K 1 - K 14
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Terminal Digital output Contact arrange-
ment Assignment
201 Change-over con-
tacts K 1 /
4(2)A / 230V~
COM Alarm output prio 1
(NC)
202 NC
203 NO
204 Change-over contact
K 2/
4(2)A / 230V~
COM Alarm output prio 2
(NC)
205 NC
206 NO
207 NO contact K 3 /
3(1)A / 230V~
COM MT compressor 1
operation
208 NO
209 NO contact K 4 /
3(1)A / 230V~
COM MT compressor 2
operation
210 NO
211 NO contact K 5 /
3(1)A / 230V~
COM MT compressor 3
operation
212 NO
213 NO contact K 6 /
3(1)A / 230V~
COM Operation / LT com-
pressor 1 enable
214 NO
215 NO contact K 7 /
3(1)A / 230V~
COM Medium pressure too
low
216 NO
217 NO contact K 8 /
3(1)A / 230V~
COM HR valve operation
218 NO
219 NO contact K 9 /
3(1)A / 230V~
COM HR pump operation
220 NO
221 NO contact K 10/
3(1)A / 230V~
COM Valve CR CP 2
222 NO
223 NO contact K 11 /
3(1)A / 230V~
COM Desuperheater fan
operation
224 NO
225 NO contact K 12 /
3(1)A / 230V~
COM Gas cooler bypass
(bypassed)
226 NO
Module for process control in CO2 refrigeration plants with rack and gas cooler control
10 ANI-1F3-A_V2.1.6_PI_2023-04_EN
Subject to technical changes
ANI-1F3-A
Digital outputs (SSR) V 1 - V 4
Analogue outputs Uout 1 - Uout 5
227 NO contact K 13 /
3(1)A / 230V~
COM Gas cooler bypass (to
gas cooler)
228 NO
229 NO contact K 14 /
3(1)A / 230V~
COM Control cabinet fan
230 NO
Terminal Digital output (SSR) Contact arrange-
ment Assignment
231 Semiconductor V 1
4...60VA / 230V~
NO Hot gas bypass
232 COM
233 Semiconductor V 2
4...60VA / 230V~
NO Liquid injection PWM
234 COM
235 Semiconductor V 3
4...60VA / 230V~
NO HP evaporator EEV
PWM
236 COM
237 Semiconductor V 4
4...60VA / 230V~
NO Valve CR CP 3
238 COM
Terminal Analogue output Potential Assignment
241 Uout 1 0...10V Frequency converter
compressor 1
242 GND
243 Uout 2 0...10V Gas cooler fan
244 GND
245 Uout 3 0...10V MP valve 1
246 GND
247 Uout 4 0...10V HP valve
248 GND
249 Uout 5 0...10V Medium pressure
valve 2 / LT frequency
converter 1
250 GND
Terminal Digital output Contact arrange-
ment Assignment
Module for process control in CO2 refrigeration plants with rack and gas cooler control
ANI-1F3-A_V2.1.6_PI_2023-04_EN 11
Subject to technical changes
ANI-1F3-A
1.4.3 Communication circuit diagram
Fig. 5: Communication circuit diagram
Communication
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Terminal Potential Assignment
81 0V C-BUS
82 L
83 S
84 H
71 0V F-BUS
72 L
73 S
74 H
11 0V RS485 (Modbus)
12 B/+
13 A/-
14 5V
Module for process control in CO2 refrigeration plants with rack and gas cooler control
12 ANI-1F3-A_V2.1.6_PI_2023-04_EN
Subject to technical changes
ANI-1F3-A
1.4.4 FIO001B/FIO-PAT circuit diagram
Fig. 6: FIO-PAT circuit diagram
Address 0 - extended HR
NOTICE • Always select address 0 for FIO001B/FIO-PAT.
Terminal Sensor input Sensor type Assignment
16/17 S 1 Not available
14/15 S 2 TRK Shop temperature
11/12/13 S 3 -0.5...7bar Water pressure
Terminal Input Assignment
21/22 DI 1 Gas cooler bypass valve open
21/23 DI 2 Gas cooler bypass valve closed
21/24 DI 3 HR valve open
21/25 DI 4 HR valve closed
21/26 DI 5 HR pump fault
21/27 DI 6 Heat pump block
21/28 DI 7 LT compressor 2 operating feedback
21/29 DI 8 LT compressor 2 fault
Terminal Output Assignment
18/19 Aout 0...10V HR/air con. pump
32/33 K 1 Defrost HP
34/35 K 2 External heater enable
36/37 K 3 Water pipe heating
38/39 K 4 LT compressor 2 enable
Module for process control in CO2 refrigeration plants with rack and gas cooler control
ANI-1F3-A_V2.1.6_PI_2023-04_EN 13
Subject to technical changes
ANI-1F3-A
1.4.5 FKV003 circuit diagram
Fig. 7: FKV003 circuit diagram
Address 1 - heat pump operation, air conditioning
Terminal Sensor input Sensor type Assignment
21/22 S 1 TRK Suction gas tempera-
ture MT cold locations
22/23 S 2 TRK Suction gas tempera-
ture downstream of
the medium pressure
valve
24/25 S 3 TRK Air con. medium inlet
temperature
25/26 S 4 TRK Air con. medium out-
let temperature
44/45/46/47 4...20mA / 0...10V Not available
Terminal Input Assignment
36/39 DI 1 Flow switch
37/39 DI 2 Frost protection
38/39 DI 3 Air conditioning request
Terminal Output Assignment
41/42 Aout 1 0...10V HP evaporator EEV
42/43 Aout 2 0...10V suction / HP fans
18/19 K 1 Gas cooler blocking
16/17 K 2 Air con. CO2 valve
14/15 K 3 HP fan
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Module for process control in CO2 refrigeration plants with rack and gas cooler control
14 ANI-1F3-A_V2.1.6_PI_2023-04_EN
Subject to technical changes
ANI-1F3-A
Address 2 - modulated gas cooler bypass, modulated IHE bypass
Address 3 - modulated hot gas bypass, modulated MT liquid injection
Terminal Sensor input Sensor type Assignment
21/22 S 1 TRK Inlet HP T.ihe
22/23 S 2 TRK Inlet MP T.ihe
24/25 S 3 Not available
25/26 S 4 Not available
44/45/46/47 4...20mA / 0...10V Not available
Terminal Input Assignment
36/39 DI 1 Not available
37/39 DI 2 Not available
38/39 DI 3 Not available
Terminal Output Assignment
41/42 Aout 1 0...10V GC bypass
42/43 Aout 2 0...10V IHE valve
18/19 K 1 IHE oil valve
16/17 K 2 Not available
14/15 K 3 Not available
Terminal Sensor input Sensor type Assignment
21/22 S 1 Not available
22/23 S 2 Not available
24/25 S 3 Not available
25/26 S 4 Not available
44/45/46/47 4...20mA / 0...10V Not available
Terminal Input Assignment
36/39 DI 1 Not available
37/39 DI 2 Not available
38/39 DI 3 Not available
Terminal Output Assignment
41/42 Aout 1 0...10V HG bypass
42/43 Aout 2 0...10V liquid injection
18/19 K 1 Not available
16/17 K 2 Not available
14/15 K 3 Not available
Module for process control in CO2 refrigeration plants with rack and gas cooler control
ANI-1F3-A_V2.1.6_PI_2023-04_EN 15
Subject to technical changes
ANI-1F3-A
1.5 Installing
The module is designed for top-hat rail installation. The housing is also suitable for installation in fuse
boxes or distribution switch cabinets. Modules can be positioned side by side without gaps.
WARNING
DANGER TO LIFE FROM ELECTRIC SHOCK AND/OR FIRE!
• Switch off the power to the entire plant before installing. Otherwise, mains voltage and/or exter-
nal voltage may still be present, even if the control voltage is switched off.
Top-hat rail installation
1. There are 2 fastening safety catches located on the back of the module. (A) Press both fastening
safety catches (a) downward until they engage with a click.
2. There are 4 retaining lugs located on the back of the module. (B) Set the module with retaining
lugs (b) on the top-hat rail (c). Make sure that you position the module parallel to the top-hat rail
with both hands and that all retaining lugs are located behind the edge of the top-hat rail.
3. Push the module down onto the top-hat rail.
4. (C) Swivel the bottom of the module towards the top-hat rail.
5. (D) Press the fastening safety catches (a) towards the module until they engage in the top-hat
rail.
Fig. 8: Top-hat rail installation
A
B
CD
Module for process control in CO2 refrigeration plants with rack and gas cooler control
16 ANI-1F3-A_V2.1.6_PI_2023-04_EN
Subject to technical changes
ANI-1F3-A
Dismantling
1. Insert a flat-tip screwdriver in the openings in the fastening safety catches.
2. Pull the two fastening safety catches away from the housing until they are heard to click.
3. Swivel the bottom of the module gently away from the top-hat rail and towards yourself.
4. Lift the module upwards away from the top-hat rail.
1.6 Technical data
For details of input assignments, see: chapter 1.4.1 "Input circuit diagram" on page 6.
For details of output assignments, see: chapter 1.4.2 "Output circuit diagram" on page 9.
For details of sensor assignments, see: chapter "Analogue inputs S 1 - S 16" on page 8.
NOTICE • For information about the ANI-1F3-A functions, please see the product manual for the ANI-1F3.
Power supply 230V~, +10% / -15%, 50Hz, max. 13VA
Display Optional control panel with graphic display
1 x green/red LED, operating voltage: green, fault: red
4 x green LED, CAN bus data traffic (CAN Tx, CAN Rx)
Sensors 16 x DGF/TRK
C-BUS communication 3-conductor CAN bus interface, shielded, galvanically isolated,
screw terminals 2.5mm2 and RJ45 socket for communicating with
system devices
F-BUS communication 3-conductor CAN bus interface, shielded, galvanically isolated,
screw terminals 2.5mm2 and RJ45 socket for communication with
field modules
Modbus communication 3-conductor Modbus interface RS485, shielded, galvanically iso-
lated, master, complete termination, screw terminals 2.5mm2
Analogue inputs 5 x 4...20mA, 23V= power supply
2 x 0...10V=
Digital inputs 20 x floating for 230V~ (neutral conductor per input)
Analogue outputs 5 x 0...10V=, non-floating, max. load 10mA
Digital outputs 2 x electromechanical relays 4(2)A / 230V~ (change-over contact)
12 x electromechanical relays 3(1)A / 230V~
(normally open contact)
4 x semiconductor relay, 4...60VA / 230V~, note the minimum
power!
Residual voltage is measurable! Integrated semiconductor
protection (no isolator)
Dimensions (W x H x D) 270 x 80 x 165mm
Housing Plastic
Fastening Top-hat rail TH 35-15 or TH 35-7.5 (DIN EN 60715)
Ambient temperature Operation: -20...+55°C, storage: -25...+70°C
Weight About 1125g
CE conformity - 2014/30/EU (EMC Directive)
- 2014/35/EU (Low Voltage Directive)
RoHS II
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WURM ANI-1F3 is a rack and gas cooler control module for CO2 refrigeration plants. It features a standard rack controller with 2 or 3 compressors controlled by evaporation temperature, high and medium pressure control, and gas cooler fan control. Additional control circuits are available for LT single machine, LT single machine 2, LT desuperheater, liquid injection, refrigerant monitoring, 6-step heat recovery, air conditioning, bypass valve for the inner heat exchanger, and control cabinet monitoring.
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