HEAT RECOVERY D.C INVERTER MULTI VRF SERVICE MANUAL ...

GREE COMMERCIAL AIR CONDITION HEAT RECOVERY D.C INVERTER MULTI VRF
F max ——the maximal frequency of the inverter compressor;
F min ——the minimal frequency of the inverter compressor;
q i ——the rated capacity of indoor unit;
q iON ——the rated capacity of indoor unit which is running;
q iOFF ——the rated capacity of indoor unit which is stopping;
A i ——the correction of the outdoor and indoor temperature.
B i ——the correction of the stopping indoor unit.
2) Compressor Start Control
Except the system receiving the stop signal,if the system start,it must run for 6min at least.Once the
compressor stops,it starts after 3min later at least.
The starting scheduling of cooling or dry code of indoor unit:
During the starting, the inverter compressor must run at 45Hz for 40s, 55Hz for 80s, 70Hz for 80s,
and 80Hz for 40s. In this course, if the high pressure lowers frequency, lowering frequency by discharge
will quit initialization and they will run in their own ways respectively.
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