Quiet Operation (Heating); Powerful Operation - Panasonic CS-HE9JKE Service Manual

C. Control contents
1. Auto fan speed is changed from normal setting to quiet setting of respective fan speed.
This is to reduce sound of Hi, Me, Lo for 3dB.
2. Manual fan speed for quiet operation is -1 step from setting fan speed.

12.6. Quiet operation (Heating)

A. Purpose
To provide quiet heating operation compare to normal operation.
B. Control condition
a. Quiet operation start condition
• When "quiet" button at remote control is pressed.
Quiet LED illuminates.
b. Quiet operation stop condition
1. When one of the following conditions is satisfied, quiet operation stops:
a. Powerful button is pressed.
b. Stop by OFF/ON switch.
c. Timer "off" activates.
d. Quiet button is pressed again.
2. When quiet operation is stopped, operation is shifted to normal operation with previous setting.
3. When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed.
4. When operation mode is changed, quiet operation is shifted to quiet operation of the new mode, expected fan only mode.
5. During quiet operation, if timer "on" activates, quiet operation maintains.
6. After off, when on back, quiet operation is not memorised.
C. Control contents
a. Fan speed auto
1. Indoor FM RPM depends on pipe temp sensor of indoor heat exchanger. Auto fan speed is changed from normal setting to
quiet setting of respective fan speed. This is to reduce sound of Hi, Me, Lo for 3dB.
b. Fan speed manual
1. Manual fan speed for quiet operation is -1 step from setting fan speed.

12.7. Powerful Operation

When the Powerful Mode is selected, the unit always forced to operate in Powerful Initial Mode for 5 minutes. Thereafter, the
temperature different (intake air temperature — remote control setting temperature) is detected periodically to judge the operation
zone and suitable control.
After powerful operation activated, it could be turned off when:
• Powerful button is pressed again
• Fan speed button is pressed
• Quiet button is pressed
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