76
12.2.2 A-class Pump Specification
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
▲
/
▼
button to change SPEED and press SET to confirm.
4 Press OFF/ON button to quit setting.
Note:
* Before adjust the water flow rate, make sure the total water volume in the installation is minimum 30 litres for
heating side.
* Please ensure the minimum flow rate is not less than 8l/min and not more than 50l/min.
Power for drive
DC280-373V
VDD
GND
VCC
VSP
Pump
FG
Control Signal
DC0V-DC6V
Feedback Speed
(pulse signal)
4pulse/rotation
Power for control
DC15±10%
+
1
4
5
6
7
+
-
-
0
10
20
30
40
50
70
60
13
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
7
6
5
4
3
2
1
EX
TER
NA
L
ST
AT
IC
PR
ESS
UR
E
(kP
a)
WATER FLOW RATE (L/min)
NOT
APP
LI
CA
BL
E
RA
NGE
NOT
APP
LI
CA
BL
E
RA
NGE
Summary of Contents for WH-ADC0916G9E8
Page 34: ...34 4 2 Outdoor Unit Air inlet rear Air inlet side Air inlet side Air outlet Air outlet ...
Page 40: ...40 8 Wiring Connection Diagram 8 1 Indoor Unit RY HT L1 RY HT L2 RY V3 RY V2 RY HT L3 ...
Page 100: ...100 Note Default value refer Location of Control and Component OPERATION ACTUAL ...