Panasonic WH-MHF09G3E5 Service Manual page 58

12.2.2 A-class Pump Specification
Feedback Speed
(pulse signal)
4 pulse/rotation
Control signal is analog voltage (DC0V-6V) generated by microcomputer PWM port.
Microcomputer can change analog voltage by changing PWM duty.
12.2.3 Water Flow Rate Setting

Set water pump speed to adjust the water flow rate.
Depend on the hydraulic system pressure loss and type, the water flow rate can be adjusted by control panel.
1 Press SERVICE button for 5 seconds.
▲
2 Press button to enter menu S02 and press SET button.
3 Press SELECT button then press
4 Press OFF/ON button to quit setting.
Note:
* Before adjust the water flow rate, make sure that the total water volume in the installation is minimum 50 litres for
heating side.
* Please ensure the minimum flow rate is not less than 13l/min and not more than 50l/min.
+
Power for drive
DC280-373V
-
+
Power for control
DC15±10%
-
Control Signal
DC0V-DC6V
▲ ▼
/
110
100
90
80
70
60
50
40
30
20
10
0
0 10
VDD
GND
VCC
VSP
FG
button to change SPEED and press SET to confirm.
7
6
5
4
3
2
1
20 30 40
13
WATER FLOW RATE (L/min)
58
6 7
6
5
4
Pump
3
2
1
50 60