DC Inverter Multi VRF System
24
5.2.3 Appendix: Reference of Normal Operation Parameters
No.
Debug item
Parameter name
Unit
Reference
1
S
yst
em p
ara
me
te
rs
O
D
U
p
ar
am
et
er
s
Outdoor
temperature
°C(°F) —
2
Compressor
discharge temp
°C(°F)
When compressor starts, discharge temp in cool mode is
within 70~105°C (158~221°F) and at least 10°C (50°F)
higher than the high pressure saturation temp.
As for temp in heat mode, it is within 65~90°C (149~194°F)
and at least 10°C (50°F) higher than the high pressure
saturation temp.
3
Defrosting temp °C(°F)
In cool mode, defrosting temp is 4~10°C (39~50°F) lower
than system’s high pressure value.
In heat mode, defrosting temp is about 3°C (37°F) different
from system’s low pressure value.
4
condensing temp °C(°F)
In cool mode, the normal condensing temp is within
20~58°C (68~136°F). According to the change of ambient
temp and system’s operating capacity, the condensing temp
will be 10~30°C(50~86°F) higher than ambient temp. The
higher ambient temp is, the smaller temp difference is. If
ambient temp is 25~35°C (77~95°F) in cool mode, system’s
condensing temp will be within 44~58°C (111~136°F).
In heat mode, if ambient temp is above -5°C(23°F),
system’s condensing temp is within 40~52°C(104~126°F).
If ambient temp is low and many IDUs are turned on, the
condensing temp will be lower.
5
evaporating temp °C(°F)
When ambient temp in cool mode is 25~35°C (77~95°F),
the evaporating temp is 0~10°C (32~50°F).
When ambient temp in heat mode is above -5°C(23°F), the
evaporating temp is -15~10°C(5~50°F).
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
55~480PLS.
7
Compressor’s
operating freq
Hz
Changes in 10~75Hz.
8
Compressor’s
operating current
A
When compressor works normally, the current is no more than
13.3A.
9
Compressor’s
IPM temp
°C(°F)
When ambient temp is below 35°C (95°F), IPM temp is lower
than 80°C (176°F) and the highest temp won’t be above 95°C
(203°F).
10
Fan motor’s
operating freq
Hz
Changes in 0~70Hz according to system’s pressure.
11
ID
U
p
ar
am
et
er
s
IDU ambient
temp
°C(°F) —
12
Indoor heat
exchanger’s inlet
temp
°C(°F)
According to ambient temp, for a same IDU in cool mode,
the inlet temp will be 1~7°C (34~45°F) lower than the outlet
temp, and 4~9°C (39~48°F) higher than the condensing
temp.
For a same IDU in heat mode, the inlet temp will be
10~20°C (50~68°F) lower than the outlet temp.
13
14
Opening angle of
indoor EXV
PLS
In cool mode, the opening angle of indoor EXV varies within
64~480PLS.
In heat mode, the opening angle of indoor EXV varies within
64~480PLS.
15
Communication
parameters
Communication
data
—
Number of IDUs detected by software is the same with the
actual number. No communication error.
Содержание GMV-12WP/A-T
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