Ambient temperature is
too low
Suction pressure is low
Adjust overheat temperature, examine
whether there is flourine leakage from the
expansion valve
The evaporator liquid
i n l e t o r c o m p r e s s o r
suction pipe is blocked
Clear blocked inlet/ suction pipe
T h e w a t e r i n l e t
temperature is too high
Compressor stopped
b e c a u s e o f h i g h
pressure protection
Examine water flow and temperature
Examine and rectify the high pressure
setting
Fluorine filling is too
much
Examine the fluorine filling volume and
drain part of refrigerant
The voltage is too high or
too low
Compressor stopped
because of motor
overloading
The voltage should be controlled within
more or less 20V than rated voltage and
phase difference within± 30%
Discharge pressure is
abnormal
Examine the compressor current, compare
with the full loading current indicated in the
nameplate
Ambient temperature is
too high
Improve air ventilation
Device loading failure
Motor or connecting
terminal is in short circuit
Examine flourine leakage
Expansion valve faulty
Repair expansion joint
The refrigerant is not
enough in the system
Examine the installation condition
Circulation water is not
enough
The high pressure stop
setting is not correct
The air suction overheat
greatly
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