Panasonic WH-MDC012H6E5 Service Manual page 27

1) P-Q graph for different pump HEX duty
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
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.
Min duty 50
0 10
P-Q
16kw rated duty 97
12kw rated duty 81
20 30
Water Flow Rate, Q (L/min)
92
Max duty C5
40 50