Gree HLR35SM/NaA-M, Руководство по обслуживанию

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MODULAR MINI CHILLER MAINTENANCE
35
UNITS MAINTENANCE
1 TROUBLE TABLE
Name of Error
Source of
Error Signal
Description
high pressure
of compressor
1 (compressor
2)
high
pressure
switch of
system 1
(system 2)
If the high pressure switch of compressor 1
(compressor 2) disconnects, the corresponding
compressor will stop. If both compressors stop, the two
fans will stop later.
The error LED of the display board lights and the
corresponding alarm mark will be shown in “malfunction
view”. The error must be removed manually before the unit
resume normal running.
low pressure of
compressor 1
(compressor 2)
low
pressure
switch of
system 1
(system 2)
If the low pressure switch of compressor 1
(compressor 2) disconnects, the corresponding
compressor will stop. If both compressors stop, the two
fans will stop later. The error can be removed automatically
for 5 times while it can not resume automatically for the 6
th
time. If it is detected for 3 times in one hour, it can not
resume automatically. The corresponding marks will be
shown in “error view”. It is required to remove the error
manually.
When the display board is off, the low pressure will not
be detected. In automatic anti-freezing and defrosting
mode, after startup of the water pump, the low pressure will
be detected by pressing heating low pressure button.
When the display board is on, if the low pressure is lower
than heating low pressure protection value, the controller
will send “low pressure protection” signal. The error can not
be removed unless repaired by service man. When the
compressor stops running, if the low pressure is lower than
heating low pressure, the controller will send “low pressure
protection” signal. The error can not be removed unless
repaired by service man.
discharge high
temperature
protection of
compressor 1
(compressor 2)
discharge
temperature
sensor
system 1
(system 2)
If the discharge high temperature protection
( ≥ 130 start protection; the resume value is 85 ) of
℃ ℃
compressor 1 (compressor 2) is detected, the
corresponding compressor will stop. If both compressors
stop, the two fans will stop later.
The error LED of the display board lights and the
corresponding alarm symbol will be shown in “malfunction
view”. The error must be removed manually before the unit
resume normal running.
overcurrent of
compressor
overcurrent
protector of
compressor
If the overcurrent of compressor 1 (compressor 2) is
detected, the corresponding compressor will stop. If both
compressors stop, the two fans will stop later.
The error LED of the display board lights and the
corresponding alarm symbol will be shown in “malfunction
view”. The error must be removed manually before the unit
resume normal running.