2001
41
Domestic Hot Water Performance
Fig. 1 - D.H.W. Pressure Drop VS. flow
A = Standard with cold water Flow Restricter
B = Cold Water Flow Restricter Removed
Modulating regulator (Modureg) of gas valve
1.
Cap (with tube 71)
2.
Shaft
3.
Adjustment screw for max. pressure setting
4.
Adjustment screw for min. pressure setting
5.
6,3 mm AMP terminals
6.
«O» ring
71. Modulating balance tube
If necessary replace complete MODUREG
Fig. 2
Fig. 2 - D.H.W.
temperature VS. flow
A = Cold Water 15
°
C
B = Cold Water 5
°
C
Fig. 1
90
80
70
60
50
40
30
20
10
0
1
2
3
4
5
6
7
8
9 10 11 12
A
B
°
C
litres/min
Pressure
Minimum
Maximum
settings
mbar
mbar
Natural Gas
2.7
14.5
