MegaLife ARV Series, Руководство по обслуживанию, Страница: 51 / 172

MegaLife ARV OUTDOOR UNIT
–
ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual
51
1. Preparatory work
1.1 Inspection and confirmation

Confirm that refrigeration piping and communication wire of indoor and outdoor units
have been connected to the same refrigeration system in order avoid unnecessary
malfunctions.

Confirm power voltage is within ±15% rated voltage.

Confirm that the power wire and control wire are correctly connected

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.
1.2 Preparation before start up

Turn on power switches of outdoor unit in advance, and keep connected for a minimum
of 6 hours to ensure 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.