Gree A Series Service Manual page 110

A Series Modular-type Air-cooled (Heat Pump) Chiller
Protection Logic
Error Name Error Source
When it is detected that the
entering water temperature
is 4℃ higher than the leaving
water temperature and the
Entering and leaving water
Protection for the four-way
latter continuously goes
temperature sensor
valve
down, the compressor will be
stopped immediately and the
control panel will display this
error.
When it is detected that the
compressor IPM current or
temperature is higher than
Protection for the Drive board of the
the set point, the compressor
compressor IPM module compressor
will be stopped immediately
and the control panel will
display this error.
When it is detected that the
fan IPM current or
temperature is higher than
Protection for the fan IPM
the set point, the compressor
Drive board of the fan
module
will be stopped immediately
and the control panel will
display this error.
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