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INSTALLERUSER
MAINTENANCE TECHNICIAN
3.4 HYDRAULIC DIAGRAM.
Key:
1 - Draining funnel on view
2 - 4 bar safety valve
3 - Boiler draining valve
4 - System pressure switch
5 - Flow manifold
6 - Gas valve
7 - Air fan
8 - Gas nozzle
9 - Air intake pipe
10 - Detection electrode
11 - Condensation module cover
12 - Condensation module
13 - Fumes hood
14 - Air sample point
15 - Flue sample point
16 - Condensing module air vent valve
17 - System ow regulation probe
18 - Air pressure switch
19 - System return regulation probe
20 - Over temperature safety thermostat
21 - Heat-exchanger safety thermostat (manual reset)
22 - Flue probe
23 - Burner
24 - ermofuse
25 - Ignition electrode
26 - Manifold cover
27 - Sleeve with seats for Venturi
28 - Boiler circulator pump
29 - Condensate trap siphon
M - System ow
SC - Condensate drain
G - Gas supply
R - System return