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2.0 GENERAL LAYOUT (Fig. 3)
Fig. 3
KEY
1 - C.H. fl ow
2 - D.H.W. outlet
3 - Gas inlet
4 - D.H.W. fl ow detector
5 - Water inlet
6 - C.H. return
7 - Drain point
8 - Pump
9 - Safety pressure relief valv
10 - Water pressure
11 - Automatic air vent
12 - C.H. return sensor
13 - Fan
14 - Expansion vessel
15 - Spark electrode
16 - Flue temperature sensor
17 - Main heat exchanger
18 - Sensing electrode
19 - Condensate drain
20 - Overheat cut off thermostat
21 - C.H. flow sensor
22 - Silencer
23 - Condensate trap
24 - Plate heat exchanger
25 - Gas valve
Summary of Contents for HE 25 S COMPACT
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Page 25: ...5 5 FLUE TERMINAL POSITION 25...
Page 54: ...10 ELECTRICAL SYSTEM DIAGRAM 54 Fig 55...
Page 55: ...55 11 SPARE PARTS Fig 56...
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Page 63: ...63 www centralheating co uk Benchmark Commissioning and Servicing Section...
Page 64: ...64 FLOWCHART FOR CO LEVEL AND COMBUSTION RATIO CHECK ON COMMISSIONING A CONDENSING BOILER...
Page 65: ...65 12 1 ANALYSER CHECK LIST...
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