Gree R410A Manual page 60

Photovoltaic Direct-driven VRF
for North America
1) Before test operation
 The appearance of the unit and the refrigerant pipes cannot be damaged during the installation.
 Do not switch on power before installation is finished completely.
 Electrical wiring must be connected correctly and securely.
 The stop valves of the outdoor unit should be opened fully.
 All the impurities such as scraps and thrums must be cleared from the unit.
2) Test operation method
① The test operation should be carried out by the professionally skilled personnel on the premise that all items
listed above are in normal conditions.
Set the status of the power supply switch as "ON" eight hours before the start of operation
②
③ Press mode button, to select the COOL, or HEAT. Whether the air conditioner is work normally or not.
The fan motor of the indoor unit will run automatically in one minute.

 The fan motor and compressor of the outdoor unit will run automatically in one minute.
④ Make sure that every combination of indoor units can work well.
Caution！
If the unit cannot work nor has any abnormal noise after the compressor is started, turn off the unit for an
immediate check.
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