Photovoltaic Multi VRF
28
Description of each stage of debugging progress
——
Debugging
code
Progress code
Status code
Code meaning and operation
method
Progress
LED1
LED2
LED3
Code
Display
status
Code
Display
status
Code
Display
status
16_ Heating
debugging
db
On
16
On
AH
On
Debugging for heating mode. If
no malfunction occurs for
20min when compressor is
running, then system will start
progress 17;
db
On
16
On
Error
code
On
Malfunction
occurs
when
debugging for heating mode.
After all malfunctions are
eliminated,
system will start
next step.
17_
Debugging
finished
00
On
AC/AH
On
OF
On
The entire unit has finished
debugging
and
under
standby-by condition.
5.2.3 Appendix: Reference of normal operation parameters
No
Debug item
Parameter name
Unit
Reference
1
System p
ara
m
ete
rs
ODU
parameters
Outdoor temperature
℃
——
2
Compressor
discharge temp
℃
●When compressor starts, discharge temp in cool
mode is within 70~105
℃
and at least 10
℃
higher
than the high pressure saturation temp;
●As for temp in heat mode, it is within 65~90
℃
and at least 10
℃
higher than the high pressure
saturation temp.
3
Defrosting temp
℃
●In cool mode, defrosting temp is 4~10
℃
lower
than system’s high pressure value;
●In heat mode, defrosting temp is about 2
℃
different from system’s low pressure value.
4
System high pressure
℃
●In cool mode, the normal high pressure value is
within 20
℃
~55
℃
. According to the change of
ambient temp and system’s operating capacity, the
high pressure value will be 10
℃
~30
℃
higher than
ambient temp. The higher ambient temp is, the
smaller temp difference is. If ambient temp is
25~35
℃
in cool mode, system’s high pressure
value will be within 44~53
℃
.
●In heat mode, if ambient temp is above -5
℃
,
system’s high pressure value is within 40~52
℃
. 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
℃
, the
low pressure value is 0~8
℃
.
●When ambient temp in heat mode is above -5
℃
,
the low pressure value is -15~8
℃
.
6
Opening angle of
thermal EXV
PL
S
●In cool mode, the thermal electronic expansion
valve remains 480PLS.
●In heat mode, the adjustable opening angle of
EXV is 40~480PLS.
7
Compressor’s
operating freq
HZ
Changes in 10Hz~80Hz.
8
Compressor’s
operating current
A
When compressor works normally, the current is
no more than 18.4A.
Содержание GMV-Y120WL/A-T
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