19
1-25
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
1.26 BOILER COMPONENTS.
Key:
1 - Draining funnel.
2 - Gas cock
3 - Pump
4 - Gas nozzle
5 - Overheating safety thermostat
6 - Burner
7 - System return regulation NTC probe
8 - System flow regulation NTC probe
9 - Condensing module air vent valve
10 - Flue probe
11 - Condensation module
12 - Air pressure switch
13 - Fumes hood
14 - Air intake pipe
15 - Igniter
16 - Heat-exchanger safety thermostat (manual reset)
17 - Heat exchanger safety thermal fuse
18 - Ignition electrode
19 - Detection electrode
20 - Condensation module cover
21 - Manifold cover
22 - Sleeve with seats for Venturi
23 - Condensate trap
24 - Air fan
25 - Gas valve
26 - System pressure switch
27 - Flow manifold
28 - 4 bar safety valve
29 - P.C.B.
30 - Sample points (air A) - (flue gas F)