Gree GMV-ND224PH/A-T Manuel D'utilisateur page 31

(2) Before the trial running, make sure the needed amount of refrigerant has been added to the pipe or at least 70%
of the needed refrigerant has been added.
(3) During the trial running, system will operate according to the ambient temperature.
1) When outdoor temperature is above 20℃, debugging shall be in cooling mode.
2) When outdoor temperature is below 20℃, debugging shall be in heating mode.
5.2.2.2 Trial Run
(1) The trial run should be carried out by the professionally skilled personnel on the premise that all items listed
above are in normal conditions.
(2) Let the unit energized and switch the wired controller or the remoter controller to "ON".
(3) The fan motor and compressor of the outdoor unit will run automatically in three minutes.
(4) If there is some unusual so started, turn off the unit for an immediate check.
Caution!
Before restarting the unit, make sure the compressor has been preheated for more than N (see Table 5.2) hours.
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GMV5 Compact Series VRF Outdoor Unit
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