Immergas Victrix Tera V228 EU - Hydraulic Diagram

65
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
3.4 HYDRAULIC DIAGRAM
40
Key (Fig. 40):
1 - Gas valve
2 - D.H.W. ow switch
3 - Gas nozzle
4 - Flow limiter
5 - D.H.W. probe
6 - Condensate drain trap
7 - System lling cock
8 - D.H.W. heat exchanger
9 - System expansion vessel
10 - Positive (+) pressure point
11 - Pressure signal vent tting
12 - Venturi
13 - Flow probe
14 - Ignition / detection electrode
15 - Air intake pipe
16 - Flue probe
17 - Flue sample point
18 - Air sample point
19 - Burner
20 - Return probe
21 - Fan
22 - Air vent valve
23 - Boiler circulating pump
24 - Absolute pressure switch
25 - 3-way valve (motorised)
26 - By-pass
27 - System draining cock
28 - 3 bar safety valve
29 - 3 bar safety valve drain tting signal
30 - Air vent valve drain
G - Gas supply
AC - Domestic hot water outlet
AF - Domestic hot water inlet
SC - Condensate drain
M - System ow
R - System return