1.7
WATER HEAD LOSSES (fig. 4)
220
200
180
160
140
120
100
80
60
40
20
0
500
1.8
MAIN COMPONENTS (fig. 4/a)
1000
1500
2000
NOTE: Water head
losses obtained with
2500
3000
Water flow (l/h)
Portata acqua (l/h)
KEY
1 Control panel
2 Breather valve
3 Connection union 1"
4 Bulb housing sheath
5 Cast iron boiler
6 D.H.W. pump
7 Control valve
8 Air relief valve
9 Water switch
10 110 litre tank
∆t 10°C.
Fig. 4
Fig. 4/a
45