Trane Koolman R410A Installation and operating instructions

April 2020 PKGP-SVX03D-EN
Confidential and proprietaryTrane information
Installation, Operation and Maintenance
Koolman
Air-Cooled Chiller and Heat pump
R410A
CGAR/CGAK030~200
SAFETY WARNING
Only qualified personnel should install and service the equipment.The installation, starting up, and servicing of
heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.
Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury.
When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are
attached to the equipment.
500002250200

2PKGP-SVX03D-EN
Warnings, Cautions and Notices
Important tips:
This manual belongs to the client and shall be used with the water chiller. After the completion,
please put it back into the technical information kit.
WARNING
Before the installation or maintenance, the power supply and disconnecting switch of the
water chiller shall be kept in de-energized status to avoid injury or death due to the electric
shock or touch of a moving part.
All installation procedures of the air conditioner must conform to the national, provincial and
local regulations.
Before the installation of the air conditioner, please carefully read this manual. Please install
and maintain the water chiller according to this manual to ensure the air conditioner can
operate properly and reliably.The installation of the air conditioner must be completed by the
professional personnel appointed byTrane.
This manual does not aim to summarize the differences of all the water chillers or any possible
problem in the installation. If the buyer needs further information or has any special problem,
please contact the local sales offices ofTrane.
CAUTION
This machine works on R410 refrigerant. Charging of non-qualified refrigerant would damage
the compressor & will be very DANGEROUS. So please charge machine with correct
refrigerant. Or call customer care for help about purchasing the correct refrigerant.
NOTICE:
There may be warnings and cautions in this manual if applicable. In order to ensure personal
safety and proper operation of the water chiller, please adhere to this manual carefully.
The manufacturer will not be liable for the installation or maintenance performed by the
unqualified personnel.

3
PKGP-SVX03D-EN
Contents
Model Number Descriptions ....................................................................................................................5
Dimensions .................................................................................................................................................6
Mini casing............................................................................................................................................6
Standard casing ...................................................................................................................................7
Installation...................................................................................................................................................9
Rigging and placement .......................................................................................................................9
Pre-Installation....................................................................................................................................10
General installation checks ..............................................................................................................10
Installation position ..........................................................................................................................10
Water supply pipe .............................................................................................................................12
Installation example ..........................................................................................................................15
Electrical ...................................................................................................................................................16
Electrical wiring ..................................................................................................................................16
Power supply .....................................................................................................................................16
Electrical data -50Hz...........................................................................................................................17
A: Mini type.........................................................................................................................................17
B: Standard type.................................................................................................................................17
Wiring Diagram ........................................................................................................................................18
Pre-Start-up...............................................................................................................................................23
Voltage range .....................................................................................................................................23
Voltage unbalance .............................................................................................................................23
Water flow...........................................................................................................................................23
Water pressure drop..........................................................................................................................23
Check the following items before start ..........................................................................................24
Unit settings........................................................................................................................................26
Jumper settings .................................................................................................................................26
Dial switch settings............................................................................................................................26
System position setup ......................................................................................................................27
Operating parameter setting ...........................................................................................................27
Start-up and Operation ...........................................................................................................................28
Starting procedures...........................................................................................................................28
Long-term shutdown.........................................................................................................................29
Restarting the system after long-term shutdown ........................................................................29
System protection .............................................................................................................................29
Low voltage protection (LP1, LP2) ..................................................................................................29
High voltage protection (HP1, HP2) ................................................................................................30

4PKGP-SVX03D-EN
Table of Contents
Antifreezing function in winter.........................................................................................................30
Antifreezing of plate type heat exchanger ....................................................................................30
High voltage protection of plate type heat exchanger ................................................................30
Overload protection of motor ..........................................................................................................30
Flow protection ..................................................................................................................................30
Running operation.............................................................................................................................30
Thermo probe (TH1) .........................................................................................................................30
Cooling mode: ...................................................................................................................................31
Heating mode: ...................................................................................................................................31
Ambient temperature operation limit.............................................................................................31
Controller...................................................................................................................................................32
Wired controller..................................................................................................................................32
Operation and display panel ............................................................................................................33
Control panel .....................................................................................................................................33
Display panel ......................................................................................................................................33
Operation instructions ......................................................................................................................33
Troubleshooting and Diagnostics..........................................................................................................34
Troubleshooting checklist ................................................................................................................34

5
PKGP-SVX03D-EN
Digits 1,2,3 CGA = Air-Cooled Chiller and Heat Pump
Digit 4 Model
K = Cooling Only
R = Heat Pump
Digits 5,6,7 Model
030 100
050 120
060 150
075 200
Digit 8 Power Supply
5 = 380V/50Hz/3ph (For Model 030,050,060,07 5,100,120,150,200)
6 = 220V/50Hz/1ph (for 030 with single compressor and 060 with double compressors)
Digit 9 Manufacturing Code (defaulted by factory)
R = R410A
Digit 10 Control
B = Microprocessor- based adjustable water temperature controller
Digit 11 Water Side Electric Heater
N=None
Digit 12 Service Sequence
A =The first time (For Model 1505,2005)
B = The second time (For Model 0305,0306,0505,0605,0755,CGAK1205)
C = The third time (For Model 0606,1005,CGAR1205)
Digit 13 Water Pump for Unit
R = With Pump inside (standard)
N = Without Pump
Digit 14 Applicable AmbientTemperature
R = Standard ambinent temperature/Blue-fin
Digit 15 Fitting Options
N = None (Standard Unit)
Digit 16 Other option
B = Export
N
15
A
16
R
14
R
13
A
12
N
11
B
10
R
9
5
8
0
7
5
6
0
5
R
4
A
3
G
2
C
1
Model Number Descriptions

6PKGP-SVX03D-EN
Dimensions
Mini casing
CGAK/R-0305R/0306R/0505R/0605R (Unit: mm)
CGAK/R-0705 R (Unit: mm)
90
74 0
950
660
1285 402
393
203
690
Ø1"Water outle
t
Ø1"Water inlet
86
402 393
1590
660
950
824
856
183
Inlet: PT RP 1¼"
Outlet: PT RP 1¼"

7
PKGP-SVX03D-EN
Dimensions
Standard casing
CGAK/R-0606R/1005R (Unit: mm)
CGAK-1205R (Unit: mm)
500
1900
850
580
245
335
490
Ø40 connect wire hole
Inlet RC 1¼"
385
Drain Hole
Outlet RC 1¼"
1290
50
500
1990 580
1000 900
1900
490
120
15599
75
Outlet PT RC 1-1/4"
Drain Hole 1/2"
Ø40
connect wire hole
Inlet PT RC 1-1/4"
TM TM

8PKGP-SVX03D-EN
Dimensions
CGAR/K-1505R/2005R (Unit: mm)
500
580
1900
Ø40 connect wire hole
Inlet
Outlet
Drain hole 1/2”
1990
335
245
490
1550
75
TM TM
CGAR-1205R (Unit: mm)
1990 580
1900
500
1736
1550
30
85
245
370 490
50
Drain Hole 1/2"
Ø40 connect wire hole
Ø40 connect wire hole
Inlet RC 1¼" Outlet RC 1¼"

9
PKGP-SVX03D-EN
Rigging and placement
Please use the forklift with proper capacity tonnage to transport and handle, for weight of each
model please refer to reference table 1.
Table 1.
Please install the water chiller at a place with well drainage facilities to facilitate massive drainage
during shutdown or repair.
Please use the forklift with proper capacity tonnage to move this water chiller to its installation
position. During lifting work, please use canvas sling, which shall be wrapped across the water
chiller pedestal and tied tightly, as shown in Figure 1.
Installation
Model The maximum net weight (kg)≈
0305R 130
0306R 131
0505R 141
0605R 149
0606R 320
0755R 202
1005R 449
1205R 530
1505R 530
2005R 540
Protection
Cliver
Protection
Tape
Tape
sling
sling
Protection
Protection
Base
Figure 1. Rigging

10 PKGP-SVX03D-EN
Installation
Pre-Installation
General installation checks
If the content of the machine's name plate is the same as that of the order.
• If there is any damage or material shortage during transportation of the unit; if yes, please notify the
deliverer timely.
Installation position
• If there is adequate ventilation available at the installation position.
• If drainage facilities are installed for handling the seeper at the pedestal.
• Unpack the water chill er and dispose the packing materials (such as paperboard, prospective lm
and etc.).
• If there are enough repair passages available.
• Fit springs or rubber shockproof gaskets.
• Fix the unit in its installation position.
• Adjust the levelness of the water chiller.
Adoption of the following water chiller xing methods can minimize the noise of the water chiller:
• Install the unit on an independent concrete foundation.
• Fit spring or rubber shockproof gasket at each xing foot.
For overall dimension of the water chiller and the dimension of the foundation, please refer to
Figure 2. For recommended minimum maintenance space, please refer to Figure 3.
4030
640
740
450
496
2330
640
150
640
4030
1630
450 730
1630
850
496
640
740
4030
640
740
450
496
2330
640
150
640
4030
1630
450 730
1630
850
496
640
740
640
950
402 393
CGAR(K)0606R/1005R
CGAR(K)0305R/0306R/0505R/0605R/0755R
CGAR(K)1205R/1505R/2005R
Figure 2. Installation dimensions

11
PKGP-SVX03D-EN
Installation
Figure 3. Service and Maintenance Space Requirement
≥500
≥300
≥300
≥500
≥300
≥300
≥500
≥500
Mini-Koolman
Air Flow
Air Flow
Air Flow
Air Flow
Air Flow
Air Flow
no obstacle
in front of unit
no obstacle
in front of unit

12 PKGP-SVX03D-EN
Installation
Water supply pipe
Evaporator piping:
• Clean out all cold water piping.
• Connect the evaporator piping.
• Exhaust the air in the cold water system at the highest point of this system piping.
• Install pressure meters, temperature meters and valves at the inlet piping and outlet piping.
• Install strainer at the inlet piping of evaporator, mesh number of the strainer screen shall be
equal to or more than 40 meshes.
• Install balance valve and ow switch at the outlet.
For installation positions of each typical accessory on water supply piping of the water chiller, please
refer to Figure 4. Piping assembly may be changed depending on positions of joint and water supply. For
installation diagram of typical system piping, please refer to Figure 5.
CAUTION
• Water the pressure of the evaporator shall not be more than 0.5MPa (i.e. maximum operation
pressure) to avoid damage of the parts at the cold water side of the water chiller.
• The return water temperature of heating shall not be set more than 40℃; otherwise, the
compressor will not be exchanged as per the Three Guarantees.
• Before the final piping connection of the water chiller, all external water supply piping
systems shall be washed thoroughly. Any impurity mixed in the piping system is strictly
forbidden; otherwise, we will assume no liability for any consequence so incurred.
NOTICE:
If commercial acidic cleaning agent is used, a temporary bypass tube shall be set at the side
of the water chiller for prevention of damage to evaporator. Please do not use untreated or
improperly treated system water supply to avoid damage to machine.
CAUTION
• To avoid damaging the water chiller, the piping for system water shall not be fitted reversely.
The water inlet tube must be connected to the inlet connector indicated by "water inlet".The
water outlet tube must be connected to the outlet connector indicated by "water outlet".
• Exhaust valve shall be set at the highest point of the piping, in order to exhaust the air in the
cold water system.

13
PKGP-SVX03D-EN
Installation
Figure 4. Installation diagram for typical piping accessories (the model of this diagram is CGAR100)
Make-up water
Water intake
Oil-return inlet
Automatic air vent
Manual gate valve
Balancing valve ball valve
Thermometer
Flow switch
Shockproof hose
Filter
Expansion tank
Manual gate valve
Manometer
Water intake
Water outlet
Shockproof gasket

14 PKGP-SVX03D-EN
Installation
Figure 5. Installation diagram for typical system piping (the model of this diagram is CGAR100)
c ` r ZN
c ` r ZO
c ` r ZP
c ` r ZQ
c ` r ZR
c ` r ZS
Make-up water
Water drainage
Direct return
Manual gate valve
Thermometer
Flow switch
Shockproof hose
Manometer
Reversed return
Tee valve

15
PKGP-SVX03D-EN
Installation
Principle description
1.A pressure water tank shall be added in the piping system to avoid pipe rupture resulting
from overpressure of piping due to ambient temperature fluctuation and to prevent air
hammer generated in the pipe.
2.To avoid overpressure or underpressure in the pipe, a makeup water valve and a drainage
valve shall be added; when the pressure is lower than 0.6bar, the makeup water valve
will open to make up water automatically; and the drainage valve will open to drain water
automatically while the pressure is more than 5bar.
P
P
Makeup water valve
Drain Valve
Shut-offElectric heater
Fan coil X4
Tap
water
Water drainage
Direct
return Reversed
return
Shockpro
of hose Thermometer
Automatic
air vent
Primary Unit pressurised
water tank
water strainer
flow
switch
Note: the automatic exhaust valve shall be set at the highest point of the piping
Installation example
Figure 6. detailed installation mode.

16 PKGP-SVX03D-EN
Electrical wiring
• Connect the power wiring to the terminal block (TB) of the water chiller distribution cabinet.
• Connect the control panel (installed indoor) and the master control board of the primary water
chiller with connecting line of control panel.
• If the model is the one without water pump, please connect the power wiring of the cold water
pump to the corresponding terminal of the pump.
• Earth the water chiller, cold water pump's motor (the model without water pump) and all devices
needing to be grounded.
• If the electric heater is equipped, connect the power wiring and the control wiring on Terminal
TB2 of the electric heater.
• If the fan coil two-way valve will be used for interlocking, jumper JP6 on the control panel shall
be disconnected on site, and connect the interlocking point (dry contact) to the point between
the control terminals 12 and U.
• Connect the flow switch to the point between connecting terminals U (or L) and 15 of the water
chiller control box.
Power supply
Please refer to the wiring diagram on the cover plate of the water chiller control box; the
installation unit shall supply power with proper voltage and provide a suitable breaker to the
water chiller. For typical installation wiring diagram of the water chiller, please refer to Page
20~24. For the actual wiring diagram, please refer to the diagram on the cover plate of the
control box.
Electrical
WARNING
Before completion of electric wiring, please do not supply power to avoid possible injury or
death.
NOTICE:
• The voltage of the power supply shall change within ±10% of the standard value.
CAUTION
• Only copper conductor can be used for connection to the terminals, to avoid corrosion or
overheat.
For minimum current, fuse specification and electrical specifications of motor, please refer to
Table 2.

17
PKGP-SVX03D-EN
Electrical
NOTICE:
Scroll compressor is adopted in 380V water chiller and power reverse-phase & open phase
protection controllers are installed in the water chiller, so the water chiller shall be energized
for inspection before starting. If the green light of the phase sequence control in the electric
control box brightens, the phase sequence is correct. If the red light brightens, it means reverse
phase, and any two phases of the power line shall be exchanged with each other. If the yellow
light brightens, it means open phase and it is necessary to cut off the electricity for inspection.
If the reverse phase or open phase appears, the water chiller will automatically stop running
or starting.
A: Mini type
Model Power supply
(V/Hz/Ph)
Full load
current of the
water pump
FLA(A)
Rated
current of the
compressor
RLA(A)
Rated
current
of the fan
FLA(A)
Minimum
current of the
water unit
circuit
MCA(A)
Recommended
fuse
specification
REC(A)
Recommended
circuit breaker
specification
(A)
Minimum
specification
of the power
supply copper
core wire
diameter
(mm2)
0305R 380-415/50/3 1.45 6.01 0.4*2 12.85 16 16 2.5
0306R 220/50/1 3.65 18.78 0.4*2 35.4 50 50 6
0505R 380-415/50/3 1.45 7.97 0.7*2 14.1 20 20 2.5
0605R 380-415/50/3 1.45 10.02 0.7*2 18.85 25 25 4
0755R 380-415/50/3 1.45 13.77 0.7*3 20.4 25 25 4
B: Standard type
Model Power supply
(V/Hz/Ph)
Full load
current of the
water pump
FLA(A)
Rated
current of the
compressor
RLA(A)
Rated
current
of the fan
FLA(A)
Minimum
current of the
water unit
circuit
MCA(A)
Recommended
fuse
specification
REC(A)
Recommended
circuit breaker
specification
(A)
Minimum
specification
of the power
supply copper
core wire
diameter
(mm2)
0606R 220/50/1 3.65 20*2 4.8 60 80 80 16
1005R 380-415/50/3 1.45 8.2*2 1. 6 23.5 32 32 6
1205R 380-415/50/3 2.6 11.2*2 1.6*2 34.36 50 50 10
1505R 380-415/50/3 2.6 14.9*2 4.2*2 36.6 50 50 10
2005R 380-415/50/3 3.7 17*2 4.2*2 42.1 63 63 16
• The difference between the power voltage and the standard voltage shall not exceed 10 percent of the
standard value.
• Rated current(RLA)=the current of the machine under the ARI or UL standard conditions
• Minimum circuit current(MCA)=maximum loadx1.25+sum of the extra load (to decide the diameter of
the wire)
Electrical data -50Hz

18 PKGP-SVX03D-EN
Wiring Diagram
The following wiring diagrams are only for reference, and the supplied wiring diagram Included in the
unit shall prevail.
CGAR/K0305R*/0505R*/0605R*
N
U
(Single compressor)
3
Transformer
RD
WH
water inlet sensor
water outlet sensor
Discharge sensor
Defrost sensor
AC 220V～
N
47811
Controller
12 16
RD
WH YL
MC
MC
380V～/50Hz/3φ～N
N
C0MP
M
3～
CCH
N
V
RFS
C
A
B
(11)
(14)
L
RD WH
MP
PUMP
M
3～
(L1) R
(L2)
(L3)
S
T1N
U
15
20 21
YL
OVP
NU
UVW
30
6
HF
FAN
M
1～FAN
M
1～
RD YL
BU
BU
BK BK
1
＃
２
＃
ADC_OD_C02
25
Option
22
Only for heat pump
Heat pump only
HP1
LF
BU BU
LF
F1 F2
HF
BA
+12VGND
CN1
ABG
CN1
CN2
CN6
R
SW1
SW2
CN4
TH2
TH1 TH3TH4
HEAT
FAN
PUMP
4WV
A-HT
L
4MV
HF
OV-FAN OV-PUMP
LP1
FLOW
OV-COMP N-COM EN-SAVE OV-HEAT
N
AL
Alarm indicator
EG-SAVE
Wiring Diagram
TRANE P/N 690140500001
TB1
To controller
RFS
COMP
MC
AL_IN
AL_OUT
LP1
FLOW
MP
HP1
OVP
CGAR/K0605R* CGAR/K0505R* CGAR/K0305R*
Description
MP
MC
MF
CCH
COMP
AL-OUT/IN
FLOW
LP
4WV
Description
Pump Contactor
Compressor Contactor
Fan Contactor
Crankcase Heater
Compressor
Alarm Output/Input
Low pressure switch
Reversing Valve
Flow Switch
N-COM Common Neutral Line
Factory wiring
On-site wiring
EN-SAVE
Energy Saving/2-Way
FANFan Motor
Cfr
TB
HEAT
A-HT
Fan capacitance
Terminal Blocks
Water Circuit Based
Plate Heat Exchanger Heater
PUMP Water Pump
OV-PUMP Pump Overload Control panel
(Indoor installation)
C/H
C/H
Outer Cool/Heat Pump Setting
Communication with other units
power supply of the main controller
Main controller
OV-COMP Compressor Overload
HP High pressure switch
Auxiliary electric heating
3
LF
PS1
PS
Medium-pressure switch
HF Fan high speed
LF Fan low speed
Name （option）
Name
Electrical Heating Control
Valve Interlock
3
3
3
Technical requirement
1、For all fault inputs.the unit is normal when power on and gives an alarm when power off.
2、The flow switch is installed on site and connected between terminals U and 15.
3、Single unit the pump is optional,if customer provide pump,each unit can use digital output
7 to control it ,while remove the wire jumper between terminal U and 22,connection to the pump protection signal.
4、If use 2-valve interlock,please dial SW2-7 to "ON".
5、Control panel and main controller are optional.

19
PKGP-SVX03D-EN
Wiring Diagram
CGAR/K0306*
YL RD
TB1
MP
MC
220V～/50Hz
N
PUMP
M
1～
CCH
N
L
MC
COMP
M
1～
NL
L
HF
FAN
M
1～FAN
M
1～
RD YL
BU BU
BK BK
BU BU
YL RD
WH
Cr1
Cfr1 Cfr2
YL
1
＃
２
＃
OL
Option
LF
F1
F2
30
N
L
L
3
N
AC 220V～
47811
L
1N6
N
12 15
20 21
ADC_OD_C02
25
16 22
HP1
LF
HF
18
Transformer
RD
WH
Heat pump only
(Single compressor)
Controller
water inlet sensor
water outlet sensor
Discharge sensor
Defrost sensor
Only for heat pump
BA
+12VGND
CN1
ABG
CN1
CN2
CN6
R
SW1
SW2
CN4
CGAR/K0306R*
Wiring Diagram
HEAT
FAN
PUMP
4WV
A-HT
HF AL
COMP
MC
MP
TH2
TH1 TH3TH4
EG-SAVE
LP1
FLOW
OV-FAN OV-PUMP
LP1
FLOW
OV-COMP N-COM EN-SAVE OV-HEAT
AL_IN
AL_OUT
HP1
C/H
OL
4MV
3
LF
PS1
TRANE P/N 690140500002
Description
MP
MC
MF
CCH
COMP
AL-OUT/IN
FLOW
LP
4WV
Description
Pump Contactor
Compressor Contactor
Fan Contactor
Crankcase Heater
Compressor
Alarm Output/Input
Low pressure switch
Reversing Valve
Flow Switch
N-COM Common Neutral Line
Factory wiring
On-site wiring
EN-SAVE
Energy Saving/2-Way
FANFan Motor
Cfr
TB
HEAT
A-HT
Fan capacitance
Terminal Blocks
Water Circuit Based
Plate Heat Exchanger Heater
PUMP Water Pump
OV-PUMP Pump Overload
C/H
Outer Cool/Heat Pump Setting
OV-COMP Compressor Overload
HP High pressure switch
PS
Medium-pressure switch
HF Fan high speed
LF Fan low speed
Name Name
Electrical Heating Control
Valve Interlock
Alarm indicator
Auxiliary electric heating
To controller
Control panel
(Indoor installation)
Communication with other units
power supply of the main controller
Main controller
（option）
3
3
Technical requirement
1、For all fault inputs.the unit is normal when power on and gives an alarm when power off.
2、The flow switch is installed on site and connected between terminals U and 15.
3、Single unit the pump is optional,if customer provide pump,each unit can use digital output
7 to control it ,while remove the wire jumper between terminal U and 22,connection to the pump protection signal.
4、If use 2-valve interlock,please dial SW2-7 to "ON".
5、Control panel and main controller are optional.

20 PKGP-SVX03D-EN
Wiring Diagram
CGAR/K0606R*
COMP2
M/FAN2
H/FAN1
A-HAT
4WV2
HE/EV1
4WV1
PUMP
COMP1
RUN_OUT
RUN_IN
AL_OUT
AL_IN
TH2
TH1 TH3 TH4 TH5 TH6
R
CON1
CON2 SW2
CN6
SW1
CN4
Technical requirement
1 For all fault inputs.the unit is normal when power on and gives an alarm when power off。
2The flow switch is installed on site and connected between terminals U and 15.
3 Single unit the pump is optional,if customer provide pump,each unit can use digital output
7 to control it ,while remove the wire jumper between terminal U and 22,connection to the pump protection signal.
4 If use 2-valve interlock,please dial SW2-7 to "ON".
5 Control panel and main controller are optional.
Only for
heat pump
CCH2
N
L
MC2
CCH1
MC1
MOTOR
COMP1
COMP2
M
C
RD
RD
MF
MC2
RD
BK BK
WH
Cfr
RD
BKBK FAN
M
1～
Cr2 BU
YEYE 1～
SM
R
MC1
RD
BK BK
MP
RD
Cr1 BU
YEYE 1～
SM
R
YE 1～PUMP
C
TB1
RD RD Cpr
L
N
OL1
OL2
220VAC
L
N
36
21 8
7
6N10 N11
345
L
N
Auxiliary
electrical
heater
Plate heat
exchange electric
heater
ACD_OD_CO1
(Double compressor)
Controller
water inlet sensor
water outlet sensor
Discharge sensor 1
Defrost sensor 1
Defrost sensor 2
Discharge sensor 2
Heat pump only
21
19
20
18
LP1
OVF1
17
14 13 15
N
25
LP2
FS
4WV1
MC2
MP AL
RUN
4WV2
MF
MC
1
EG-SAVE
12
C/H
16
OL2
OL1
22
HP1
HP2
0V-PUMP
FL0W
0V-C0MP1
FREZ/LP2
VHT/HP2
N-COM
EN-SAVE
C/H
HP1
LP1
0V-C0MP2
0V-FAN
YE YE
YE
YE
3
PS1
PS2
TO Controller
Alarm indicator
Running indicator
Wiring Diagram
power supply of the main controller
Main controller
（option）
Communication with other units
Control panel
(Indoor installation)
option
Factory wiring
EN-SAVE
RUN-OUT/IN
CCH
PUMP
AL-OUT/IN
N-COM
H/FAN
HT/EV1
A-HAT
COMP
MC
MF
MP
Fan Overload
OVF
Reversing Valve
4WV
OL Compressor Overheat
LP
TB
HP
Low pressure switch Terminal Blocks High pressure switch
FS
OVP
Flow Switch Pump Overload
C/H On-site wiring
OV-COMP Compressor Overload
PS Medium-pressure switch
Description Description
Name Name
Pump Contactor
Compressor Contactor
Fan Contactor
Crankcase Heater
Compressor
Water Circuit Based
Electrical Heating Control
Plate Heat Exchanger Heater
Water Pump
Fan Motor
Alarm Output/Input
Common Neutral Line
Run Output/Input
Energy Saving/2-Way Valve
Interlock
Outer Cool/Heat Setting
CGAR/K0606R*
220V～/50Hz
L
N
BA
+12VGND
CN1
ABG
3
3
Transformer
RD
WH