32
32
32
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
19 - Fan
20 - Air / gas mixer
21 - Gas nozzle
22 - D.H.W. probe
23 - Air vent valve
24 - Stainless steel storage tank
25 - System pressure switch
26 - Condensate drain trap
27 - Control panel
28 - 8 bar safety valve
29 - Storage tank draining fitting
11 - Air / gas manifold
12 - Flue probe
13 - Flue gas sample points
(air A) - (flue gas F)
14 - Domestic hot water
expansion vessel
15 - System expansion vessel
16 - Condensation module
17 - Burner
18 - Ignition/detection
electrodes
Key:
1 - Filling valve system
2 - Draining valve system
3 - Bypass
4 - 3-way valve (motorised)
5 - 3 bar safety valve
6 - Gas valve
7 - Boiler pump
8 - Air intake pipe
9 - Flow probe
10 - Return probe
1.29 BOILER COMPONENTS.
