Heater Control For Tank Side; Base Pan Heater Control (Optional) - Panasonic WH-ADC0916G9E8 WH-UX09FE8 Service Manual

12.9

Heater Control for Tank Side


Backup heater turn ON at tank side after fulfill below condition:
1 Tank Temperature < Tank Set Temperature + [0°C]
2 Heat Pump Thermo OFF.
3 20 minutes from previous heater OFF.
4 Remote controller Select USE for Backup Heater for Tank.

Backup Heater Turn OFF condition:
1 Tank Temperature > Tank Set Temperature + [0°C] for continuously 15 seconds. OR
2 Heat Pump Thermo ON.
3 Mode Change or Operation OFF by remote controller.
* Backup Heater Turn ON/OFF all together according to the selected heater capacity.

12.10 Base Pan Heater Control (Optional)


To enable the base pan heater function, control panel initial setting has to be manually adjusted by activating
Base Pan Heater menu.

There are 2 optional start condition can be selected, Type A or Type B.

Control details:
1 Type A: (Default Auto Mode)
Start conditions:
When outdoor air temperature ≤ 3°C during heating and deice operation is ON.
o
Control contents:
Base pan heater is ON during deice operation and continues ON for 10 minutes after deice operation
o
ends.
Cancel condition:
When outdoor temperature > 6°C after deice end or
o
When operation is not at heating mode or
o
Base pan heater ON timer count is completed.
o
2 Type B: (ON Mode)
Start conditions:
When outdoor air temperature is ≤ 5°C and operates in heating mode, base pan heater is ON.
o
Cancel conditions:
When outdoor air temperature is > 7°C or
o
When operation is not at heating mode.
o
Note:
* Base pan heater cannot be ON during test mode and standby mode.
AND
AND
OR
Tank
Temp.
65°C
Tank Water Set Temp
AND
Backup
Heater
Operation
Heat Pump
Operation
80
Time