19
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
FA
N
M 1
～
FA
N
M 1
～
RD
YL
BU
BU
BK
BK
BU
BU
YL
RD
WH
Cr
1
Cfr1
Cfr2
YL
1
＃
２
＃
OL
Option
LF
F1
F2
30
N
L
L
3
N
AC
220V
～
47
81
1
L
1N
6
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
+1
2V
GN
D
CN
1
AB
G
CN
1
CN
2
CN6
R
SW
1
SW
2
CN4
CGAR/K0306R*
Wiring Diagram
HEAT
FAN
PUMP
4WV
A-HT
HF
AL
COMP
MC
MP
TH2
TH1
TH3
TH4
EG-S
AV
E
LP1
FL
OW
OV
-F
AN
OV
-PUMP
LP1
FL
OW
OV
-COMP
N-COM EN-
SA
VE
OV
-HEA
T
AL_IN
AL_OUT
HP1
C/
H
OL
4MV
3
LF
PS1
TRANE P/N 690
14050
00
02
Description
MP
MC
MF
CCH
COM
P
AL
-OUT/IN
FL
OW
LP
4WV
Description
Pu
mp Contactor
Compressor Contactor
Fa
n Contactor
Crankcase Heater
Compressor
Alarm Output/Input
Low pressure switc
h
Re
ve
rs
ing
Va
lve
Flow Switc
h
N-COM
Common Neutral Line
Fa
ctory wiring
On-site wiring
EN-
SA
VE
Energy S
aving/2-W
ay
FA
N
Fa
n Motor
Cfr
TB
HEA
T
A-HT
Fa
n capacitance
Terminal Bloc
ks
W
ater Circuit Based
Plate Heat Exc
hanger Heater
PUM
P
W
ater P
ump
OV
-PUM
P
Pu
mp Overload
C/
H
Outer Cool/Heat
Pu
mp
Se
tting
OV
-COM
P
Compressor Overload
HP
High pressure switc
h
PS
Medium-pressure switc
h
HF
Fa
n high speed
LF
Fa
n low speed
Nam
e
Nam
e
Electrical Heating Control
Va
lve Interloc
k
Alarm indicator
Auxiliary electric heating
To
controller
Control panel
(Indoor installation)
Communication with other units
power supply of the main controller
Main controller
（
optio
n
）
3
3
Te
chnical requirement
1
、
Fo
r all fault inputs.the unit is normal when power on and gi
ves an alarm when power of
f.
2
、
The flow switc
h is installed on site and connected between terminals U and
15
.
3
、
Single unit the pump is optional,if customer pro
vide pump,eac
h unit can use digital output
7 to control it ,while remo
ve the wire jumper between terminal U and 22,connection to th
e
pump protection signal.
4
、
If use 2-valve interloc
k,please dial SW2-7 to "ON".
5
、
Control panel and main controller are optional.
