2.5
Hydraulic schematic
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Key
1
Gas isolating valve
2
Heating flow isolating valve
3
Heating safety valve
4
Filter on cold water inlet
5
by-pass
6
DHW flow sensor
7
Domestic plate to plate heat exchanger
8
Heating filter
9
Heating return thermistor
10 Condensate trap
11
Ignition and control electrode
12 burner
13 Main heat exchanger
14 Thermal fuse
15 flue outlet
16 Silencer
17 Heating expansion vessel
0020085231_02 - 05/10 - Glow-worm
Supplied By www.heating spares.co Tel. 0161 620 6677
18 fan
19 Gas control valve
20 Ignition module
21 Heating flow thermistor
22 Air vent
23 Pump
24 Three way valve
25 Water pressure sensor
26 filling taps
27 Heating return isolating valve
28 Domestic cold water isolating valve
A
Heating flow
b
Pipe for heating safety valve
C
Domestic hot water outlet
D
Gas
E
Cold water inlet
f
Heating return
G
Condensate drain
INTRODUCTION
15
16
17
18
19
20
21
22
23
24
25
26
27
28
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