Gree NRQD16G/A-S - Page 68

GMV5 Home DC Inverter Multi VRF Units
62
 Heating 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?
Malfunction is
eliminated.
NO
YES
NO
Heating and
water
heating
standby
Heating and
water heating
start up?
YES
NO
YES
In defrosting?
Defrosting?