Panasonic WH-SDC09H3E8 Service Manual page 36

Maximum pump speed setting on remote control

Standard pump speed is automatically controlled to get the designed water temperature different between water
inlet and outlet (ΔT). Instead of setting the standard pump speed, maximum pump speed is manually adjusted by
the installer according to water circuit pressure drop.
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
WH-SDC09H3E8 & WH-SDC12H9E8
WH-SDC16H9E8
150
140
130
120
110
100
90
80
70
60
50
40
30
20
Min Duty 50
10
0
0 10 20
Water Flow Rate, Q (L/min)
150
140
130
120
110
100
90
80
70
60
50
40
30
20
Min Duty 50
10
0
0 10 20
Water Flow Rate, Q (L/min)
(P - Q)
Max Duty C5
12kW Rated Duty 8B
9kW Rated Duty 7A
30 40 50
(P - Q)
Max Duty C5
Rated Duty 9C
30 40 50
60
60