Gree MULTI VRF SYSTEM II GMV-120WL/A-T User Manual

56
DC Inverter Multi VRF System II
Service Manual
5
Low pressure of
system
℃
●The unit will operate under cooling mode when the
ambient temperature is 25~35
℃
, the low pressure
value for the system is 0~8
℃
.
●The unit will operate under heating mode when the
ambient temperature is above -5
℃
, the low pressure
value for the system is -15~8
℃
.
6
Opening angle
of electrocnic
expansion valve
for heating
PLS
●During cooling operation, the electronica expansion
valve for heating will always be kept at 480PLS;
●During heating operation, the opening angle for the
adjusted electronic expansion valve is 60~480PLS.
7
Operation
frequency for
compressor
HZ ●Change among 10HZ~80HZ
8
Operation current
of compressor
A
●Current should be no more than 18.4A during normal
operation for compressor
9
IPM module
temperature for
compressor
℃
●When ambient temperature is lower than 35
℃
,
temperature for IPM module is lower than 80
℃
. The
maximum temperature won’t exceed 95
℃
.
10
Operation frequenc
for fan
HZ
●It will adjust the frequency among 0~49HZ for
operation according to the system pressure
11
Parameters of
indoor unit
Ambient
temperature for
indoor unit
℃
——
12
Entry tube
temperature
for indoor heat
exchanger
℃
●According to the difference of ambient temperature,
the entry tube temperature is 1
℃
~7
℃
lower than the
exit tube temperature for the same indoor unit under
cooling mode; 4~9
℃
higher than low pressure.
●~20
℃。
Under heating mode, entry temperature is
10
℃
~20
℃
lower than exit tube temperature for the sae
indoor unit.
13
Entry tube
temperature
for indoor heat
exchange
℃
14
Opening angle of
indoor electrocnic
expansion valve
PLS
●Under cooling mode, the opening angle for indoor
electronic expansion valve is adjusted among
70~480PLS.
●Under heating mode, the opening angle for indoor unit
is adjusted among 40~480PLS.
15 Communication paraters
Communication
data
—
●Through debugging software, it detected that the
quantity of indoor unit is same with the enginerring
actural quantity. There’s no communication malfunction.
16 Drainage syste —— —
●Water can be drained smoothly for indoor unit;
Outdoor unit can drain water fromo drainage pipe
completely.
17 Other —— —
●Compressor, indoor unit and outdoor fan operate
normally, no abnormal sound.
2 Malfunction List
2.1 Malfunction list for the wired controller
Display
code
Content Display
code
Content
Display
code
Content
L0
Malfunction of
indoor unit
L9
Wrong number of
indoor unit for one-to-
more indoor unit
d8 Malfunction of water temperature sensor

Gree MULTI VRF SYSTEM II GMV-120WL/A-T Specifications

General

Brand	Gree
Model	MULTI VRF SYSTEM II GMV-120WL/A-T
Category	Inverter
Language	English