139
2) When pump flowrate setting is Max. Duty
Indoor water pump speed will operate at the maximum pump speed setting at room side operation. The
maximum pump speed setting can be adjusted by the installer according to water circuit pressure drop condition.
However, the following sequences do not follow maximum pump duty setting by remote control.
Pump down mode
Air purge mode
Normal deice
1) P-Q graph for different pump HEX duty
P-Q (WH-ADC0309J3E5)
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
Pressure, P (kpa)
01020304050
Water Flow Rate, Q (L/min)
Min Duty: 50
Duty: 6E
Max Duty: C5
14.2.2 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.
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