5.7.5 Exploded Diagrams Parts Reference List
Boiler Controls Assembly (Fig. 5.7.1)
GC Number Code Description
E93-126 88 C55/C55P/C45 Main Control Box
(C.17.4.01.00.0 A)
E93-127 88 C40P Main Control Box
(C.13.4.03.00.0 A)
E93-130 106 Control Panel (C.17.4.02.00.0)
95 Terminal Block HV (C.17.4.41.00.0)
167 Terminal Block LV (C.17.4.42.00.0)
E72-401 109 Thermal Fuse (C.08.4.21.00.0)
E93-135 101 Ignitor Cable (C.17.4.07.00.0)
Waterway, Condensate & Flue Assembly (Fig. 5.7.2)
GC Number Code Description
E93-136 36 Heat Exchanger
(C.17.2.02.00.0)
E93-137 77 C55 Burner (C.17.2.01.00.1)
E93-138 77 C45/C40P/C55P Burner
(C.13.2.01.00.0)
E93-141 44 Burner Head Gasket (C.17.2.00.09.0)
E93-142 43 Ignitor Gasket (C.17.2.00.62.0 A)
E93-143 74 Spark Ignition Electrode
(C.17.2.29.00.0 A)
E93-144 56 Condensate Trap (C.17.2.07.00.4)
E93-145 47 Flow/Return Thermistor (C.17.2.04.00.0)
E72-332 46 Flue Overheat Stat (C.08.2.30.00.0)
114-045 48 Water Pressure Switch (B.04.2.23.00.0)
E93-146 52 Water Pump (C.17.2.06.00.0)
Air - Gas Assembly (Fig. 5.7.3)
GC Number Code Description
E93-147 73 Combustion Blower (C.17.3.01.00.3)
163 C45/C55 Gas Valve - Mixer Air Gas
Assembly (C.17.3.17.00.0)
163 C55P Gas Valve - Mixer Air Gas
Assembly (C.17.3.18.00.0)
163 C40P Gas Valve - Mixer Air Gas
Assembly (C.13.3.03.00.0)
Casing Assembly (Fig. 5.7.4)
GC Number Code Description
E93-150 8 Cabinet Cover (C.17.1.04.00.2 A)
3 C55 Databadge - NG (C.17.1.00.01.0)
3 C55P Databadge - LPG (C.17.1.00.02.0)
3 C45 Databadge - NG (C.15.1.00.01.0)
3 C40P Databadge - LPG (C.13.1.00.02.0)
E73-355 18 Combustion Test Plug (B.04.2.00.49.1)
WD536 Chapter 5 : Fault Finding The Keston C45, C40P, C55 & C55P
Installation & Servicing Instructions Page : 38
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