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Trial operation and the performance
Heating capacity
Trial operation
• The heating mode adopts the heat pump type that absorbs outdoor heat energy and releases
into indoor. So if outdoor temperature goes down, the heating capacity will decrease.
• Before trial operation:
Before being energized, measure the resistor between power terminal block (live wire and
neutral wire) and the grounded point with a multimeter, and check if it is over 1M * . If not, the
unit can not operate.
To protect compressor, energize the outdoor unit for at least 12 hours before the unit runs.If
the crankcase heater is not energized for 6 hours, the compressor will not work.
Con
fi
rm 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, oil equalization
pipe). If operating the unit without opening the valves, compressor failure will occur.
Con
fi
rm all indoor units being electri
fi
ed. 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.
