1.14 BOILER COMPONENTS.
ES
PL
TR
CZ
SI
HU
RU
RO
IE
SK
UA
Key:
1 - Flue hood
2 - System pressure switch
3 - Boiler pump
4 - Domestic hot water flow switch
5 - Gas valve
6 - Domestic hot water probe
7 - System filling valve
8 - Flue safety thermostat
9 - Safety thermostat
10 - Primary heat exchanger
11 - Flow probe
148
12 - Combustion chamber
13 - Ignition and detection electrodes
14 - System expansion vessel
15 - Burner
16 - Vent valve
17 - DHW heat exchanger
18 - Three-way valve (motorised)
19 - System draining valve
20 - By-pass
21 - 3 bar safety valve
N.B.: connection group (optional)
Fig. 1- 10