Electrical Power Supply; Circulating Pump - Potterton SIRIUS THREE FS 130 Installation, User And Service Manual

5 Before installation
Tab.12 Water flow rates in the boiler
Boiler model
SIRIUS THREE FS 130
SIRIUS THREE FS 150
SIRIUS THREE FS 200
SIRIUS THREE FS 250
Fig.17 Pressure drops for SIRIUS THREE
FS 130
1 100
1 000
900
800
2
700 7
600 6
500
400
300
3
200
100
-
0 2000 4000
Fig.18 Pressure drops for SIRIUS THREE
FS 150
1600
1400
1200
1000
2 800
600
400
3
200
0
0
6000
2000 4000
30
5
4
6000 8000 10000
1
MW-5000723-1
5
4
8000 10000 12000
1
MW-5000724-2
5.2.3

Electrical power supply

Power supply voltage
Caution
Please ensure the polarities shown on the terminals are followed,
i.e live (L), neutral (N) and earth (
5.2.4

Circulating pump

The boiler's water flow rates must be higher than or equal to the
specifications in the table below:
Working flow rate with the low-loss header kit: minimum flow rate (litres/
hour)
2250
3000
3500
4500
1 Q flow rate (litres/hour)
2 H pressure in millibar (mbar)
3 Operating water flow rate at nominal heat output = 3730 litres/hour
where ∆T = 30°C
4 Operating water flow rate at nominal heat output = 5600 litres/hour
where ∆T = 20°C
5 Operating water flow rate at nominal heat output = 7500 litres/hour
where ∆T = 15°C
ΔT Temperature difference between the flow water and the return
water in the boiler
1 Q flow rate (litres/hour)
2 H pressure in millibar (mbar)
3 Operating water flow rate at nominal heat output = 4310 litres/hour
where ∆T = 30 °C
4 Operating water flow rate at nominal heat output = 6460 litres/hour
where ∆T = 20 °C
5 Operating water flow rate at nominal heat output = 8610 litres/hour
where ∆T = 15°C
ΔT Temperature difference between the flow water and the return
water in the boiler
230 V AC/50 Hz
)
7702639 - v03 - 10072018