Gree GMV-S280W/A-X

GMV5 Home DC Inverter Multi VRF Units
61
 Cooling and Water Heating Operation
Open and
close 4-way
valve.
Compressor
starts up.
There is
malfunction
or not?
Unit stops
because of
malfunction.
Malfunction is
eliminated.
YES
In the
operation of
oil return?
Oil return is in
operation.
NO
YES
NO
Cooling and
water
heating
standby
Cooling and
water heating
start up?？
YES
NO
YES
In defrosting?
Defrosting
Heat
exchanger
used as
evaporator/
condenser.
Evaporator
Compressor
starts up
Open and
close 4-way
valve.
Condenser
NO
YES
There is
malfunction
or not?
Unit stops
because of
malfunction.
Malfunction is
eliminated.
YES
In the
operation of
oil return?
Oil return is in
operation
NO
YES