GREE Photovoltaic Direct-driven Inverter Multi VRF Units
232
2.3.4.96 “J8” System high pressure ratio protection
Error display:
ODU mainboard, IDU wired controller and IDU receive light board will
display
Error judgment condit
ion and method:
Check the system high pressure and low pressure through pressure sensor. When the ratio
between system high pressure and low pressure is bigger than 8 after starting operation, the unit will
stop for protection.
Possible reason
:
■Pressure s
ensor is abnormal;
■Ambient temperature exceeds the requirement;
Troubleshooting:
2.3.4.97 “J9” System low pressure ratio protection
Error display:
ODU mainboard, IDU wired controller and IDU receive light board will display
Error judgment condition an
d method:
Check the system high pressure and low pressure through pressure sensor. When the ratio
between system high pressure and low pressure is smaller than 1.8 after starting operation, the unit will
stop for protection.
Possible reason
:
■Pressure sens
or is abnormal;
■Ambient temperature exceeds the requirement;
Summary of Contents for GMV5 Series
Page 202: ...GREE Photovoltaic Direct driven Inverter Multi VRF Units 198 Troubleshooting ...
Page 253: ...GREE Photovoltaic Direct driven Inverter Multi VRF Units 249 Troubleshooting ...
Page 256: ...GREE Photovoltaic Direct driven Inverter Multi VRF Units 252 Troubleshooting ...
Page 262: ...GREE Photovoltaic Direct driven Inverter Multi VRF Units 258 Troubleshooting ...
Page 274: ...GREE Photovoltaic Direct driven Inverter Multi VRF Units 270 2 Check oil balancer ...
Page 287: ...GREE Photovoltaic Direct driven Inverter Multi VRF Units 283 ...
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