AUX-DC inverter ARV outdoor unit individual series technical manual
116
1. Preparatory work
1.1 Inspection and confirmation before commissioning
Confirm that refrigeration piping and communication wire of indoor and outdoor units have been
connectedto the same refrigeration system in order avoid unnecessary malfunctions.
Confirm power voltage is within ±10% rated voltage.
Confirm that the power wire and control wire are correctly connected,the power phase sequence of
outdoor unit is correct,the outdoor unit can detect each indoor unit.
Confirm wired controller is properly connected.
Confirm all units have passed nitrogen pressure-keeping test for 24 hours.
Confirm the system has been carried out vacuum drying and charged with refrigeration as required.
1.2Preparation before start up
Turn on power switches of outdoor unit in advance, and keep connected for a minimum of 8 hours
toensure refrigerant oil is sufficiently heated.
Turn on all valves. If valves are not fully open unit may be damaged.
All dial switches of indoor / outdoor units have been set according to the technical requirements.
1.3Commissioning of Trial Run
Inspection list of trial run:
1) Confirm the fan impeller is rotating according to its intended route and turns smoothly.
2) Check for abnormal noise during operation of refrigerant system and compressor.
3) Confirm drainage is smooth and its lift pump is operational.
4) Confirm operating current is within the allowed range.
5) Confirm each operating parameter is within the range permitted by the equipment.
Note:
Separately test cooling mode and heating mode to judge the stability andreliability of the system.
1.4 Refrigerant leakage caution
This air conditioner adopts R410A as refrigerant, which is safe and noncombustible.
R410A critical thickness: 0.3kg/m
3
(Critical thickness: the max thickness of Freon without anyharm to
person).
Содержание ANB66FVAMT
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