DC INVERTER MULTI VRF CONTROL
45
frequency-reducing.
★ Initial Sequence Chart of Heating Mode:
Before the first starting of compressor, you should keep it running for 3min at 60Hz, and then
switch to the target frequency. The dwell time is separately 5min and 5 min when the frequency
passes 75 Hz and 90 Hz. If high-pressure frequency-reducing and exhausting frequency-reducing
happens during the process, you should quit the initial action, and deal with according to their
separate frequency-reducing.
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