ext. in
2
4
6
7
4
2
ext. in
2
4
6
7
4
2
figure 21 - Pump dial
2 9 Heating circulation pump
speed settings
figure 22 - Hydraulic pressures and flow rates available
Circulation pump sticking or blocked:
If the motor is blocked, a start cycle is launched.
If the motor remains blocked it will be permanently
stopped.
"
Cut off the electricity supply from the circulation
pump for 30 seconds in order to release and
authorise another start cycle
0
100
200
300
400
500
600
mbar
1 mbar = 10 mmCE = 100 Pa
m /h
3
1
1,5
2
2,5
0,5
0
2
4
66
ext. in
2
4
6
7
4
2
0
100
200
300
400
500
600
mbar
1 mbar = 10 mmCE = 100 Pa
m /h
3
1
1,5
2
2,5
0,5
0
2
4
77
ext. in
2
4
6
7
4
2
ext. in
2
4
6
7
4
2
Do not use this area.
Variable pressure
The circulator varies the manometric height
according to the flowrate.
Recommended for a system equipped with
radiators
(particularly any system with
thermostatic valves).
Constant pressure
The circulation pump maintains the
manometric height constant whatever the
flow rate.
Recommended for a system with constant
pressure drop like
a floor heating system
Installation and operating manual "1532 - EN"
- 23 -
Air to Water Heat Pump
