5
Key
1 – Flue Sensor
2 – Thermal Fuse
3 – Heat Exchanger
4 – Ionisation Electrode
5 – Ignition Electrode
6 – Fan Group (Fan, Air Gas Mixer, Ring)
7 – Expansion Vessel
8 – Ignition Transformer
9 – Overheat Safety Thermostat
10 – Central Heating Temperature Sensor (Flow)
11 – Pressure Relief Valve
12 – Gas Valve
13 – Pressure Sensor
14 – Pump
15 – Return Hydroblock
16 – Central Heating Temperature Sensor
(Return)
17 – Condensing Trap
18 – Burner
19 – Plastic Flue Channel
20 – Automatic Air Vent
21 – Pressure Relief Valve
Figure 1
Valves
A - Heating Flow
(22mm) Red
B - Gas Inlet
(22mm) Yellow
C - Heating Return
(22mm)
Blue (with fil
ter)
Figure 1a
C
D
E
F
G
H
BOTTOM VIEW
C = 39mm
D = 65mm
E = 86mm
F = 86mm
G = 65mm
H = 64mm
Figure 1b
21
A
B
C
Summary of Contents for SARGON 18S
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