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
1 Q flow rate (litres/hour)
2 H pressure in millibar (mbar)
3 Operating water flow rate at nominal heat output = 5740 litres/hour
where ∆T = 30°C
4 Operating water flow rate at nominal heat output = 8610 litres/hour
where ∆T = 20°C
5 Operating water flow rate at nominal heat output = 11480 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 = 7180 litres/hour
where ∆T = 30°C
4 Operating water flow rate at nominal heat output = 10770 litres/
hour where ∆T = 20°C
5 Operating water flow rate at nominal heat output = 14350 litres/
hour where ∆T = 15°C
ΔT Temperature difference between the flow water and the return
water in the boiler
5.3
Choice of the location
Before mounting the boiler, decide on the ideal position for mounting,
bearing in mind any Directives and the dimensions of the appliance.
Fig.18 Pressure drops for POWER HT+
1.150