Panasonic WH-ADC1216H6E5 Service Manual page 37

1) P-Q graph for different pump HEX duty
12.2.2 Zone Water Pump Control
Purpose:

Water pump install at each zone to circulate the water inside each zone during buffer tank connection selected
"YES" or 2 zone systems.
Content:

AC type water pump install for this zone water pump control. When optional PCB connected, 230V output will
drive this zone pump.

There are three pump can be connected through Optional PCB. (Zone 1 Pump, Zone 2 Pump, & Pool Pump)
* Zone 1 pump [P1] use to circulate zone 1 water circuit & Zone 1 mixing valve [M1] adjust to control the Zone 1
target water temperature.
* Zone 2 pump [P2] use to circulate zone 2 water circuit & Zone 2 mixing valve [M2] adjust to control the Zone 2
target water temperature.
* When Pool Function select as Zone 2 circuit, [P2] use to circulate water to heat exchanger which use to transfer
heat to pool water.
* Pool pump [P3] circulates the pool water through the heat exchanger to get warm water.

Zone 1 and Zone 2 water pump start condition:
Zone room request ON
o
(eg. Zone 1 thermo ON, only zone 1 pump will turn ON)

Zone 1 and Zone 2 water pump stop condition:
Zone room request OFF
o
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