![background image](/i/gree/159317/gree-home-gmv/h/gree-home-gmv-004.png)
3
14.4
D
IAL
-
UP OF
U
NIT
........................................................................................................................ 208
15
DEBUGGING
OF
THE
UNIT
..................................................................................................... 214
15.1
P
REPARATION FOR THE
D
EBUGGING
........................................................................................ 214
15.2
D
EBUGGING OF
C
OOLING
M
ODE
............................................................................................... 215
15.3
D
EBUGGING OF
H
EATING
M
ODE
............................................................................................... 215
15.4
D
EBUGGING OF
W
ATER
H
EATING
.............................................................................................. 216
MAINTENANCE
............................................................................................................................... 218
1
PURPOSE
...................................................................................................................................... 218
2
ROUTINE
WORK
.......................................................................................................................... 218
2.1
C
LEANOUT OF THE
W
ATER
S
YSTEM
............................................................................................ 218
2.2T
HE
C
LEANOUT OF
F
INNED
H
EAT
E
XCHANGER
.......................................................................... 218
2.3
D
AILY
M
AINTENANCE
................................................................................................................... 218
3
ANTI-FREEZING
PROJECT
IN
WINTER
.................................................................................. 220
3.1
C
AUTIONS OF
W
ATER
S
YSTEM
.................................................................................................... 220
3.2
C
AUTIONS OF
O
UTDOOR
U
NIT
.................................................................................................... 220
SERVICING
....................................................................................................................................... 223
1
LIST
OF
UNIT
ERRORS
.............................................................................................................. 223
1.1
L
IST OF
E
RROR
D
ISPLAY ON
W
IRED
C
ONTROLLER
.................................................................... 223
1.2
D
ISPLAY
C
ODE ON
D
IGITAL
T
UBE OF
O
UTDOOR
M
AINBOARD
................................................... 226
1.3
D
ISPLAY OF THE NUMBER OF INDOOR UNITS
.............................................................................. 226
2
FLOW
CHART
OF
TROUBLESHOOTING
............................................................................... 227
2.1
H
IGH
-
PRESSURE PROTECTION
.................................................................................................... 227
2.2
L
OW
-
PRESSURE PROTECTION
..................................................................................................... 228
2.3
E
XHAUST
T
EMPERATURE
P
ROTECTION
...................................................................................... 229
2.4
C
OMPRESSOR OVERCURRENT PROTECTION
.............................................................................. 229
2.4
C
OMPRESSOR OVERCURRENT PROTECTION
.............................................................................. 230
2.6
W
ATER
-
FULL PROTECTION
........................................................................................................... 233
2.7
E
RROR WITH ROOM SENSOR
,
TUBE
-
INLET
,
TUBE MIDDLE AND TUBE
-
EXIT SENSOR
;
ERROR WITH
ROOM SENSOR
,
TUBE
-
INLET
,
TUBE MIDDLE AND TUBE
-
EXIT SENSOR AND EXHAUST
/
CASING TOP
SENSOR
;
ERROR WITH THE COMPRESSOR BOTTOM SENSOR
........................................................... 233
2.8
N
O ENERGIZATION TO THE UNIT AND MAINBOARD
...................................................................... 234
2.9
PFC
PROTECTION
........................................................................................................................ 235
2.10
IPM
PROTECTION
....................................................................................................................... 236
2.11
T
RIPPING
..................................................................................................................................... 237
2.12
R
ADIATOR OVERHEAT PROTECTION
.......................................................................................... 238
2.13
O
VERVOLTAGE PROTECTION OF
DC
VOLTAGE
......................................................................... 239
3
CIRCUIT
DIAGRAM
...................................................................................................................... 240
3.1
I
NTRODUCTION OF
M
AJOR
E
LECTRICAL
E
LEMENTS
.................................................................. 240
3.2
WIRING
DIADRAM
.................................................................................................................... 241
4
DISASSEMBLY
AND
ASSEMBLY
PROCEDURE
OF
MAIN
PARTS
................................... 254
4.1
I
NTRODUCTION OF
M
AIN
P
ARTS
.................................................................................................. 254
4.2
O
UTDOOR
U
NIT
............................................................................................................................ 258
4.3
D
ISASSEMBLY AND
A
SSEMBLY OF
I
NDOOR
U
NIT
........................................................................ 277
5
EXPLODED
VIEWS
AND
PART
LIST
........................................................................................ 288
5.1
O
UTDOOR
U
NIT
............................................................................................................................ 288
5.2
H
YDRO UNIT
.................................................................................................................................. 294
5.3
I
NDOOR
U
NIT
_E
XPLODED VIEW AND
P
ARTS
L
IST
....................................................................... 304