Panasonic WH-ADC0916G9E8, Service Manual, Page: 81 / 205

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12.11 Tank Pre-thermo OFF control

Purpose:
o
To achieve higher tank temperature by heat pump before thermo off.

Control content:
o
Indoor activate tank pre-thermo control and send ON bit to outdoor after fulfilled all the control starting
condition.
 Starting condition:

This control activates after fulfilled all below conditions for continuously 10 seconds.
o
Tank operation AND
o
Outdoor ambient ≥ 10°C AND
o
Water inlet temperature ≥ 50°C OR water outlet temperature ≥ 56°C
 End condition:

This control will be disabled when,
o
Tank operation OFF OR
o
Outdoor ambient < 10°C OR
o
Tank thermo OFF OR
o
Water inlet OFF temperature OR
o
Water temperature thermo OFF OR
o
Water inlet temperature < 50°C AND Water outlet temperature < 56°C
* Compressor frequency and fan speed will be controlled.
12.12 Sterilization Mode

Purpose:
o
Increase tank temperature to boiling set temperature to operate sterilization.

Sterilization control can only be star when:
o
Tank Connection Select “YES”
o
Backup heater for tank side Select “YES” or “NO”
o
Sterilization function select “YES”
(Sterilization temperature, timer starts and continues time can be set by remote controller)

Control details:
Sterilization Control Start Condition:
o
When sterilization timer is reach, remote control will send the sterilization ON to indoor.
o
Sterilization will start if current operation is ON (With any mode)
o
Indoor will memorize the running mode when sterilization is start (start sterilization timer) and switch to tank
side.
o
Tank mode running internally but no feedback to remote control. Remote control will remain display the
previous mode.
o
Operate as tank mode which heat pump will operate till heat pump thermo OFF and backup heater will ON
after heat pump thermo OFF to achieve tank sterilization set temperature.
Sterilization Control End Condition:
o
After achieve tank sterilization temperature, unit will start to count the continue time and remain as tank
sterilization mode operation. After continue timer reach remote control set continue time, sterilization function
will end and resume back to previous memorized mode. OR
o
After sterilization function start for maximum 4 hours but still not achieve the sterilization temperature or not
fulfill the continue time. Sterilization function ends and resume back to previous memorized running mode.
OR
o
Power reset OR
o
Timer ON/OFF signal, or Mode Change or Operation OFF is request. OR
o
Holiday timer End and start heat pump operation.