ICP HMC030KD1, Руководство по обслуживанию

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6. When Heating does not operate
Operate “Heating Mode( )” by setting the desired temperature of the
remote controller is higher than one of the indoor temperature by
2°C(4°F) at least.
In heating Mode, the indoor fan operates in case the pipe temperature
is higher than 28°C(50°F).
Turn ON Main Power
• Confirm that the Vertical Louver is normally geared with the shaft of
Stepping Motor.
• If the regular torque is detected when rotating the Vertical Louver with
hands Normal
• Check the connecting condition of CN-U/D Connector
• Check the soldering condition(on PWB) of STEP(U/D) Connector
If there are no problems after above checks
• Confirm the assembly conditions that are catching and interfering parts
in the rotation radial of the Vertical Louver
5. When Vertical Louver does not operate.
Check the operating circuit of the Vertical Louver
• Confirm that there is DC +12V between pin (RED) of CN-U/D and
GND.
• Confirm that there is a soldering short at following terminals.
- Between , , and of MICOM
- Between , , and of IC01M
- Between , , and of IC01M
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