Technical data

40
7.4 Setting maximum CH power
The maximum CH power is set to 50% (for HE26) or 99% (for HE40C) in the
factory. When the CH system requires more or less power, the maximum CH
power can be changed by adjusting the fan speed. See table parameter 3, set
CH power.
This table gives the relation between the fan speed and the appliance power.
Setting CH power
Required CH power
(approx kW)
Setting on service display
HE26
HE 40C
(%
of the maximum speed)
-
40.9
100
-
36.8
90
26.2
34.5
± 83
23.5
32.7
80
21.9
28.6
70
18.9
24.5
60
15.8
20.5
50
12.7
16.4
40
9.5
12.3
30
Caution
The power slowly increases while burning (modulation by time) and
decreases as soon as the set supply temperature is reached.
7.5 Setting pump position
The switch for setting the pump position is located on the connecting box of
the CH pump
1. Set the pump position on the basis of the set maximum power and the
resistance of the system on the water side. See diagram: Pressure loss
and pump lift, type Ups 50-130, positions 1, 2 and 3.
2. Check the temperature difference between the supply and return of the
appliance: this should be about 20°C.
The minimum flow
-
through
Set power
200 l/h
7.0 kW
750 l/h
26.2 kW
1170
l/h
40.9 kW
A. (Not applicable)
B. InterSystem HE26
AA InterSystem HE 40C
I Pump position 1
II Pump position 2
III Pump position 3
X Flow-through in litres/hr
Y Pressure loss / pump lift in metres head
Pressure loss/pump lift (m head)
WILO RS 15/4.1 (HE26)
Flow (litres/hr)
WILO RS 15/7
-
3
(HE40C)
Flow (litres/hr)
AA