Gree GMV5 Compact Series - Page 19

0 1700 CONTROL
GMV5 COMPACT MULTI VRF UNIT
SERVICE MANUAL
◆Heating Operation
No
B
Is startup being initialized?
4-way valve: open
Outdoor fan：heating control
mode
Compressor：capacity control
Electronic expansion valve of
outdoor unit：capacity control
Yes
Yes
No
4-way valve: open
Outdoor fan：protection
control mode
Compressor：protection
control
Electronic expansion valve of
outdoor unit：capacity control
4-way valve: reverse
Outdoor fan：defrost control
Compressor：initial defrost
control
Electronic expansion valve
of outdoor unit：fully open
Heating running
Is defrost running?
Is compressor being
protected?
4-way valve: open
Outdoor fan：heating control
mode
Compressor：initialized
Electronic expansion valve of
outdoor unit：capacity control
Yes
No