Glow-worm Ultracom2 cxi - Manual (Page 7)

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INTRODUCTION
2.5 Hydraulic schematic
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28 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
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