Setting The Pump - Airwell Wellea Split A R32 Installation Manual

9.4 Setting the pump

The pump is contolled via a digital low-voltage pulse-width modulation signal which means that the
speed of rotation depends on the input signal.The speed changes as a function of the input profile.
The relationships between the head and the water flow rated,the PMW Return and the water flow
rated are shown in the graph below.
The internal pump maintains maximum output, the indoor unit can provide the head and flow:
Available external static pressure VS Flow rate
90
80
70
60
50
40
30
20
10
0
0.3 0.6 0.9 1.2 1.5
Q（m
Indoor unit 4-10kW
If the valves are at the incorrect position, the circulation pump will be damaged.
If it's necessary to check the running status of the pump when unit power on, please do not touch the internal electronic
control box components to avoid electric shock.
1.8 2.1 2.4 2.7 3.0
/h）
3
CAUTION
DANGER
Available external static pressure VS Flow rate
90
80
70
60
50
40
30
20
10
0
0.3 0.7 1.1
Indoor unit 12-16kW
48
1.5 1.9 2.3 2.7
Q（m /h）
3
3.1