Trane CXAJ series - Page 18

18
Wiring Diagram
BA
+12VGND
CN1
ABG
B
A
C
Energy Saving/
2- Way Valve Interlock
Outer Cool/Heat Pump Setting
Compressor Overload/Overheat
Flow Switch
Water Pump Overload
Low Pressure Switch
High Pressure Switch
4 Way Valve
Chiller's Water Pump Contactor
Fan Motor Contactor
Compressor
Crankcase Heater
Compressor Start Contactor
Water Pump
Fan Motor
Water Circuit Based
Electrical Heating Control
Terminal Board
Alarm single
Description
Name
Description
Name
Field Wiring
Factory Wiring
CN1
CN2
CN6
R
SW2
SW1
CN4
OVCA-1
OVCA-2
Mian Controller(Option)
connect with other units(correspond)
TH2
TH1
TH3
TH4
HEAT
FAN
PUMP
4WV
L
4MV
MF
OV-FAN
OV-PUMP
LP1
FLOW
OV-COMP
N-COM
EN-SAVE
OV-HEAT
N
EG-SAVE
RFS
COMP
MC1
AL_IN
AL_OUT
LP
FLOW
MP
HP1
OVP
Control panel
(Option)
C/H
MF
C/H EN-SAVE
AL
FAN
PUMP
HT/EV
COMP
CCH
MF
MC
4WV
TB
HP OVP
MP
FS OVC
Compressor Location
HP
HT/EV
MC2
AL
U
N
LP
Power
Water Inlet Sensor
Water Outlet Sensor
Defrost Sensor1
Defrost Sensor2
Pump Overload Switch(close) Connect 11 and U
Flow Switch Connect 10 and U.
Code Switch Seting reference IOM.
Reserved control signal for controlling water pump and heating
No valve and Deforst sensor at cooling only.
Note:
COMP
Transformer
RD
WH
N
35613
7
11
(11)
(14)
L
1
14
10
4
8
TO CONTROL WIRING
CCH2
CCH1
32
31
MC2 MC1
(L2) (L3)
MC2
(L1)
COMP A-2
3 ~
M
(L2) (L3)
MC1
COMP A-1
3 ~
M
TB
380Vac 3N50Hz
N
U
M
FAN MOTOR A-2
3 ~
(L2)
(L3)
(L1)
M
FAN MOTOR A-1
3 ~
(L2)
OVC1
OVC2
(L1)
(L3)
(L1)
2
BK
YL
9
12
Control Board
RFS
WH
BK
RD
WH
BK
RD
WH
BK
RD
WH
BK
RD
WH
BK
RD
WH
BK
RD
WH
BK
RD
WH
BK
RD
W
NUV
1 2
3 4 5
1
2
3
5
5
A-1 A-2
Control Box
CX(G)AJ 045/065 (N Type)
Wiring Diagram
690128970002
SW2˖ 5ǃ6˖ 00 Heatpumpˈ11 Refrigeration
7˖ 0 Normalˈ1 2-Way Valve Interlock 8˖ 0 Singleˈ1 Modul
220V