Table of Contents
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Key
1.
Fixing point
5.
Room sealed compartment
Control panel
6.
7.
Gas inlet
8.
Domestic hot water outlet
Cold water inlet
9.
10. Central heating flow outlet
11. Central heating return inlet
14. Central heating safety valve
16. Fan
18. Air distribution screen
19. Combustion - heat exchanging compartment
20. Burner assembly
21. Main injector (4)
22. Burner (4)
23. Thermocouple
24. Spark electrode
25. Pilot
26. Combustion chamber insulation
27. Copper heat exchanger for C.H. + D.H.W.
28. Flue collector from heat exchanger
29. Internal flue exit
30. Flue/surplus air collector
31. Air pressure control damper
32. Central heating pump
33. C.H. waterway of the heat exchanger
34. C.H. flow temperature sensor
35. Air separator
36. Automatic air vent
37. Cold water inlet filter
39. Cold water flow limiter
40. Domestic hot water expansion vessel (optional)
42. D.H.W. temperature sensor
43. Air pressure switch
44. Combination gas valve
45. Knob gas valve
46. Operator gas valve
47. Modulating regulator (Modureg) gas valve
48. Burner pressure test point
49. Overheat cut-off thermostat
50. Central heating limit thermostat
52. D.H.W. limit thermostat
53. Heat exchanger venting point
56. Expansion vessel
57. Fan air inlet pressure test point
58. Fan air outlet pressure test point
59. Flue outlet pressure test point
60. Extended control knob to gas valve
62. Time clock
63. C.H. boiler thermostat
68. Control box with P.C.B.
71. Modulating balance tube
80. 230 V + 24 V roomstat terminal blocks
87. Venturi test point
90. Flue outlet pressure test point
91. Air pressure test point
114. Low water pressure switch
136. Flowmeter
145. C.H. pressure gauge
156. Piezo-igniter
INDUSTRIE
7
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