Gree GWHD(18)NK6OO(LC)

38
Technical Information
Service Manual
GWHD(28)NK6OO(LC)(LH) GWHD(28)NK6OO(LC)
GWHD(36)NK6OO(LC)(LH) GWHD(36)NK6OO(LC)
5. Electrical Part
BLOCK
θ
COM-INNER
AP1: PRINTED CIRCUIT BOARD
OFAN
FAN MOTOR
YDQD
RT10 RT11
RDBK
YE
TUBE-A
RT5RT4 RT6RT7 RT9RT8
YA QB YB QC YCQA
WH
BK RD RDBK
BK RD
BK RD
θ θ θ θ θ θ θ
YEGN
BU
BN(BK)
RD
XT1
N
L
XTA
PE
BK
BU
BN
YEGN
BU
BU BN
BN
BU
BK
GY
WH
INDOOR UNIT AINDOOR UNIT B
POWER
PE
BNBU
TERMINAL BLOCK
N(1)
3
2
XTD
BU
INDOOR UNIT D
YEGN
BN
BK
PE
XTC
PE
PE
XTB
YEGN
BN
BK
BU
BK
BN
YEGN
INDOOR UNIT C
2
3
N(1)
2
3
N(1)
2
3
N(1)
TERMINAL BLOCK
TERMINAL BLOCK
TERMINAL BLOCK
TERMINAL
Valve
Gas
VALVE
4-WAY
CN2
L
N
YEGN
BU BN
EH
RD
BOTTOM
HEATER
BAND
HEAT-B
RD
BU BN
PE
TUBE-B TUBE-C TUBE-D
L3
L3
L3
L3
L2
L2
OPTIONAL
PROTECTOR
OVERLOAD
WH
WH
SAT
OVC-COMP
OPTIONAL
Please don't touch any electronic
component or terminal when the machine
is running , stopping or has been
powered off for less than 30 minutes to
prevent the risk of electric shock!
VALVE C
EXPANSION
ELECTRONIC ELECTRONIC
EXPANSION
VALVE B
EXPANSION
ELECTRONIC
EKV
EKVEKV
FCFB
FA
AC-L
N
FD
EKV
ELECTRONIC
EXPANSION
VALVE D
T-SENSOR
θ
RT2
COMP
U
L1
V
W
X1
RT3
RT1
BU
YE
RD
BU
YE
RD
COMP.
OUTTUBE
OUTROOM
EXHAUST
TEMP. SENSOR
TEMP. SENSOR
TEMP. SENSOR
L1
L1
θ
θ
M1
Temp.
Sensor
Valve
LiquidLiquidGas
Sensor
Temp.
Sensor
ValveValve
Temp.
Liquid
Valve
Sensor
Temp.
Liquid
Valve
Sensor
Temp.
Temp.
Sensor
Valve
Temp.
Sensor
Gas
Valve
Temp.
Sensor
Gas
VALVE A
20K
15K
50K
4WAY
VT
VT
4YV
WARNING
E
WH BK RD YE
MAGNETIC
RING
MAGNETIC
RING
MAGNETIC
RING
L
N
TERMINAL
BLOCK
INDOOR UNIT A
N(1)
3
2
XTA
N(1)
3
2
N(1)
3
2
XTB
XTC
XTD
2
3
N(1)
TERMINAL BLOCK
TERMINAL BLOCK
TERMINAL BLOCK
TERMINAL BLOCK
L2
L2
L6
L6
L6
L6
L6
L5
L5
L4
L4
L3
L3
INDOOR UNIT DINDOOR UNIT CINDOOR UNIT B
EH
BOTTOM
HEATER
BAND
FAN MOTOR
OPTIONAL
OPTIONAL
OPTIONAL
N
AC-L
T-SEN
AP1: Main Board
FD
FC
FB
FA
COM-IN
(yellow)
(red)
(black)
(white)
N2
M
HPP
4WAY
WARNING
Please don't touch any electronic
component or terminal when the
machine is running , stopping or
has been powered off for less than
30 minutes to prevent the risk of
electric shock!
POWER
20K
50K
CN803
RT3
θ
θ
θ
θ
θ
θ
θ
θ
RT2A
RT2B
RT2C
RT2D
CN802
20K
20K
RT3A
RT3B RT3C
RT3D
20K
20K
20K
20K
20K
RT2RT1
θ
θ
15K
θ
PE
XT
20K
BU
BN
L
N
OUTTUBE
TEMP.
SENSOR
OUTROOM
TEMP.
SENSOR
EXHAUST
TEMP.
SENSOR
LIQUID PIPE
TEMP.
SENSOR
N
E1
GAS PIPE
TEMP.
SENSOR
N-OUT
AC-L
AP2
L-OUT
BN
Main Board
BU
PE
YEGN
RD
WH
GY
BK
EKV
BU
BK
BN
YEGN
YEGN
BN
BK
BU
YEGN
BN
BK
BU
YEGN
BN
BK
BU
BNBU
BNBU
BNBU
MAGNETIC
RING
BN(BK)
BU
YEGN
MAGNETIC
RING
MAGNETIC
RING
EKV
EKV
EKV
BU
HPS
P
PE
PE
PE
PE
BN
BU
ELECTRONIC
EXPANSION
VALVE A
ELECTRONIC
EXPANSION
VALVE B
ELECTRONIC
EXPANSION
VALVE C
ELECTRONIC
EXPANSION
VALVE D
SWITCH
HIGH PRESSURE
L1
L1
COMP.
RD
YE
BU
W
V
L1
U
COMP
4YV
4-WAY VALVE
VT
VT
RD
RD
WH
WH
X1
PROTECTOR
OVERLOAD
SAT
WH
WH
W(RD)
U(BU)
V(YE)
OFAN
HEAT-B
COMP-OVC
MAGNETIC
RING
MAGNETIC
RING
600007064933
600007066392