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Trial operation
• Before trial operation:
Before being electried, measure the resistor between power terminal block (live wire and neutral wire) and the
earthed point with a multimeter, and check if it is over 1MΩ. If not, the unit can not operate.
To protect compressor, electrify the outdoor unit for at least 12 hours before the unit runs. If the crankcase heater
is not electried for 6 hours, the compressor will not work.
Conrm the compressor bottom getting hot.
Except for the condition that there is only one master unit connected (no slave unit), under the other conditions,
open fully the outdoor operating valves (gas side, liquid side). If operating the unit without opening the valves,
compressor failure will occur.
Conrm all indoor units being electried. If not, water leakage will occur.
Measure the system pressure with pressure gauge, at the same time, operate the unit.
• Trial operation
In trial operation, refer to the information of performance section. When the unit can not start up at the room
temperature, make trial operation for outdoor.
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