Gree GWH18TC-S3DNA1D

12
Technical Information
Service Manual
● Outdoor Unit
GWH18TC-S3DNA1D/O
Please don't touch any
terminal when the voltage
of terminal P(DC+) and
N(DC-) at AP1 is higher
than 30V to prevent the
risk of electric shock !
WARNING
COM_INNER
N1
AC_L
RD
BAND
HEATER
BOTTOM
RD
EH
HEAT_B
NL
YEGN
BU
PE
N
L
N(1)
2
3
BN
BK
BU
XT
INDOOR UNIT
L1
RING
BK
BN
BU
BN
BU
YEGN
BLOCK
TERMINAL
PE
MAGNETIC
L1
L1
POWER
6361000021801
BN
L3
PRINTED CIRCUIT BOARD
PE
YEGN
FAN MOTOR
4WAY OFANFA
VTVT
VALVE
4YV
4-WAY
M1
PE
EKV
Electronic
Expansion
Valve
PE
YEGN
PE
AP1
T_SENSOR
W(RD)V(YE)U(BU)
OVC_COMP
15K 50K20K
θ
θ
θ
COMP.
W
V
U
L2 L2
RING
MAGNETIC
L2
OVERLOAD PROTECTOR
YEGN
YEBU
RD
PE
PE
RT1 RT2 RT3
RD
WHWH
SAT
COMP
X1
YEBU
WH BK
TEMP.SENSOR OUTTUBE OUTROOM TEMP.SENSOR EXHAUST TEMP.SENSOR
GWH24TD-S3DNA1D/I
UP-DOWNUP-DOWN
M4
M3
SWING-UD2SWING-UD1
AP2
CAP
JUMP
CONNECTOR
CLEAN
ELECTROSTATIC
DEDUSTING
YEGN
BN
BK
BU
GENERATOR 6361000023208
COLD PLASMA
WH
BK
CONNECTOR
PE
BLOCK
TERMINAL
RD BU
HEALTH-L HEALTH-N
PRINTED CIRCUIT BOARD
X10
SWITCH
SA
C.
X2
NO.
3
2
N(1)
CONNECTING
CABLE
X1
BU
BK
BN
EVAPORATOR
AC-L
N
COM-OUT
XT1
YEGN
YEGN
PE
OUTDOOR UNIT
Please don't touch any electronic component or terminal
when the machine is running,stopping or has been powered
off for less than 3 minutes to prevent electric shock !
STEPPING
MOTOR
STEPPING
MOTOR
CONNECTOR
COM-INNER1
DC-MOTOR
θθ
DISPLAY BOARD
RECEIVER AND
RT1
RT2
TEMP.SENSOR
ROOM TUBE
TEMP.SENSOR
FAN MOTOR
TUBEROOM
M1
DISP1DISP2
AP1
SWING-LR
M2
LEFT-RIGHT
STEPPING MOTOR
Wired Controller
AP3
WIFI MODULE
WIFI
AP4
CONNECTOR
L1
L1
L1
L1
WARNING