Domestic Hot Water Performance - Ferroli optima 2001 VMF7 Installation Instructions Manual

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
Fig. 2 - D.H.W.
temperature VS. flow
A = Cold Water 15°C
B = Cold Water 5°C
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
Pressure Minimum
settings
Natural Gas
90
80
70
60
50
40
30
20
10
0 1 2
Maximum
mbar mbar
2.7 14.5
2001
3 4 5 6
Fig. 2
Fig. 1
A
B
7 8 9 10
litres/min
11 12
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