Daikin D-Series User Manual

Si18-525B Troubleshooting for BP Unit
Troubleshooting 365
6.6 Check
6.6.1 Power Supply Waveforms Check
Check No.14 Measure the power supply waveform between pins 1 and 3 on the terminal board, and check
the waveform disturbance.
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Check to see if the power supply waveform is a sine wave (Fig.1).
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Check to see if there is waveform disturbance near the zero cross (sections circled in Fig.2)
[Fig.1] [Fig.2]

Daikin D-Series Specifications

General

HSPF Rating	Up to 10.0
Cooling Capacity	9, 000 - 36, 000 BTU/h
Heating Capacity	9, 000 - 36, 000 BTU/h
Energy Efficiency Ratio (EER)	Up to 12.5
Sound Level	19 - 50 dB (Indoor), 49 - 60 dB (Outdoor)
Noise Level	19 - 50 dB (Indoor), 49 - 60 dB (Outdoor)
Power Supply	208/230V, 1-phase, 60Hz