Immergas HERCULES Condensing 26 2 E Manual page 8

Technical Documentation
HERCULES Condensing hydraulic diagram.
Standard Configuration
Key:
1 - Stainless steel coil for storage tank
2 - System draining valve
3 - Polyphosphate dispenser (optional)
4 - System filling valve
5 - 3 bar safety valve
6 - Manifold draining valve
7 - Condensate drain trap
8 - Gas valve
9 - Gas valve outlet pressure point (P3)
10 - Air intake pipe
11 - Fan
12 - Gas nozzle
13 - Detection electrode
14 - Burner
15 - Flue safety thermostat
16 - Condensation module covers
17 - Condensation module
18 - Manual air vent valve
19 - Flue hood
20 - Air sample point
21 - Flue sample point
22 - Pressure point ΔP gas
23 - Flow probe
24 - Safety thermostat
25 - Ignition electrode
26 - Boiler Pump
27 - System pressure switch (absolute)
28 - Three-way valve (motorised)
29 - Venturi positive sign P1
23 - Venturi negative sign P2
31 - Air/gas Venturi manifold
32 - System expansion vessel
33 - Vent valve
34 - Hydraulic manifold
35 - Zone 1 pump
36 - Zone 1 one-way valve
37 - Zone 1 by-pass
38 - D.H.W. expansion vessel
39 - Cold water inlet valve
40 - Cold water inlet filter
41 - Flow limiter
42 - Cold water inlet non-return valve
The hot water used for central heating and domestic hot water
is produced via a primary and a secondary circuit (DHW)
which are affected according to necessity.
STHCkW ed 0409
43 - 8 bar safety valve
44 - DHW recirculation pump (optional)
45 - Domestic hot water probe
46 - Magnesium anode
47 - Storage tank unit draining valve
RA1 - Zone 1 system return (High temperature)
MA1 - Zone 1 system flow (High temperature)
G - Gas supply
AC - Domestic hot water outlet
AF - Domestic cold water inlet
RC - Domestic hot water recirculation
RP - Return from solar panels
MP - Flow from solar panels
6
Technical Documentation
HERCULES Condensing Export