Gree GMV-24WL/C-T, Service Manual

Page: 96 / 150

GREE DC Inverter Side Discharge VRF
Ⅱ
for North America
93
8.3 Parameters reference value for the normal operation of unit
No. Debug item
Parameter
name
Unit Reference
1
System
paramet
ers
ODU
paramet
ers
Outdoor
temperature
℃
(
℉
)
-
2
Compressor
discharge
temp
℃
(
℉
)
When compressor starts, discharge temp in cool mode is
within 70~105
℃
(158~221
℉
) and at least 10
℃
(50
℉
) higher
than the high pressure saturation temp;
As for temp in heat mode, it is within 65~90
℃
(149~194
℉
)
and at least 10
℃
(50
℉
) higher than the high pressure
saturation temp.
3
Defrosting
temp
℃
(
℉
)
In cool mode, defrosting temp is 4~10
℃
(39~50
℉
) lower
than system’s high pressure value;
In heat mode, defrosting temp is about 2
℃
(36
℉
) different
from system’s low pressure value.
4
System high
pressure
℃
(
℉
)
In cool mode, the normal high pressure value is within 20
℃
~55
℃
(68~131
℉
). According to the change of ambient temp
and system’s operating capacity, the high pressure value will
be 10
℃
~30
℃
(50~86
℉
) higher than ambient temp. The
higher ambient temp is, the smaller temp difference is. If
ambient temp is 25~35
℃
(77~95
℉
) in cool mode, system’s
high pressure value will be within 44~53
℃
(111~127
℉
).
In heat mode, if ambient temp is above -5
℃
(23
℉
), system’s
high pressure value is within 40~52
℃
(104~126
℉
). If
ambient temp is low and many IDUs are turned on, the high
pressure will be lower.
5
System low
pressure
℃
(
℉
)
When ambient temp in cool mode is 25~35
℃
(77~95
℉
), the
low pressure value is 0~8
℃
(32~46
℉
).
When ambient temp in heat mode is above -5
℃
(23
℉
), the
low pressure value is -15~8
℃
(5~46
℉
).
6
Opening angle
of thermal EXV
PLS
In cool mode, the thermal electronic expansion valve
remains 480PLS.
In heat mode, the adjustable opening angle of EXV is
60~480PLS.
7
System
paramet
ers
ODU
paramet
ers
Compressor’s
operating freq
HZ
GMV-24WL/C-T(U)
GMV-28WL/C-T(U) Changes in
16Hz~74Hz.
GMV-36WL/A-T(U)
GMV-48WL/A-T(U)
GMV-36WL/C-T(U)
GMV-48WL/C-T(U)
Changes in
10Hz~80Hz.
GMV-60WL/A-T(U)
GMV-60WL/C-T(U) Changes in
16Hz~80Hz
8
Compressor’s
operating
current
A
When compressor works normally, the current is no more
than22.6A.
9
Compressor’s
IPM temp
℃
(
℉
)
When ambient temp is below 35
℃
(95
℉
), IPM temp is lower
than 80
℃
(176
℉
) and the highest temp won’t be above 95
℃
(203
℉
).
10
Fan motor’s
operating freq
HZ
GMV-24WL/C-T(U)
GMV-28WL/C-T(U)
Changes in
0~37Hz according
to system’s
pressure.
11
GMV-36WL/A-T(U)
GMV-48WL/A-T(U)
GMV-36WL/C-T(U)
GMV-48WL/C-T(U) Changes in
0~49Hz according
to system’s
pressure.