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Final Checks and Trial Operation
Turn the circuit breaker on 6 hours before initial operation so the crank
case heater can be heated enough to start the system.
If the heater is not heated, the air conditioner does not operate for 2
hours and 30 minutes to protect the compressor.
(‘CH’ is displayed on the PCB display of the outdoor unit)
CAUTION
Inspection before test operation
1
Check the power cable and communication cable of the indoor and
outdoor unit.
2
Turn the circuit breaker(3 phases and 1 phase) on 6 hours before initial
operation so that the crank case heater can be heated.
3
Check the power supply between the outdoor unit and the cabinet panel.
Check the 3 phase power of the compressor {L1(Red), L2(White), L3(Black)}
by the 3 phase tester.
Check the 220V power with the voltage meter.
4
Once the outdoor unit is turned on, it performs the tracking to check the
connected indoor unit and options.
Test operation
1
Run the unit by KEY MODE or controller.
1st- Running all indoor units by KEY MODE
2nd- Each indoor unit run separately by controller
Inspect the compressor sound during the initial operation.
If roaring sound is heard, stop operation.
If roaring sound is heard and the pressure does not change,
the back-lashing of the compressor may occur.
Check the power supply of the compressor. If the problem occurs
continuously, check the compressor power cable.
{3 phase:T1(L1)(R)-Red, T2(L2)(S)-White, T3(L3)(T)-Black,
single phase: (R)-Red, (S)-White, (C)-Black}
2
Check the indoor and outdoor units’ running status.
- Check indoor unit cooling and heating air flow
- Each indoor unit controls: air flow direction, air velocity
- Indoor and outdoor unit’s abnormal running noise
- Proper drainage from indoor unit in cooling mode
- Check detail running status using S-NET program.
3
Finish test.
4
Explain to the customer how to use the air conditioner following the user’s
manual.
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Summary of Contents for RVXMHF040ESeries
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