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2.4 -
BOILER WATER CIRCUIT DIAGRAM
10
9
8
7
6
5
4
3
2
1
11
17
40
20
0
21
R
M
Technical features and dimensions
12
13
14
15
20
60
80
100
120
16
G
19
18
1
Return gate valve
2
Pump
3
Flow gate valve (the way to the si-
phon is open in order to drain the
boiler)
4
CH flow temperature sensor
5
CH return temperature sensor
6
Pressure switch against lack of
water
7
HL thermostat
8
HL thermostat
(Overheat exchanger protection)
9
Manual air vent
10 Air vent valve
11 Heat exchanger
12 Fan
13 Premix
14 Condensate niveau sensor
15 Gas valve
16 Gas ball valve
17 Condensate drain siphon
18 Smoke pressure switch
19 Flue Outlet
20 Safety valve supplied
21 Pressure gauge (optional)
M C.H flow
G
Gas supply
R
C.H. return
11
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