17
Installation and Servicing
SECTION 2 - INSTALLATION
2.1 BOILER ASSEMBLY - Exploded View
104 CH Return Valve
105 CH Flow Valve
106 DHW Inlet & Outlet
108 Pump Head
110 Auto Air Vent
111 Divertor Valve Motor
112
Divertor Valve Body & Paddle
113 Pressure Relief Valve
114 Pipe - PRV Outlet
115 Pipe - Flow
116 Pipe - Return
117 Pipe - Expansion Vessel
118 Expansion Vessel
119 Return Group Manifold
120 Flow Group Manifold
121 Plate Heat Exchanger
124 Flow Regulator
127 Flow Sensor/Turbine
131 Water Pressure Switch
135 Pressure Gauge
203 Gas Cock
204 Pipe - Gas Inlet
205 Gas Valve
206 Pipe - Gas Injector
211 Injector Assy
214 Venturi
215 Fan
217 Burner
218 Gasket - Burner
219 Sump Clean Out Cover
223 Flue Manifold
224 Flue Manifold Top
227 Clamp Retaining Flue Turret
228 Hose Condensate Internal
229 Siphon Trap
231
Condensate Outlet Connection
302 PCB
304
Control Thermistor (Return)
306 Electrode Ignition
307 Electrode Detection
308 Ignitor Unit
309 Thermistor Flow
313 Ignition Lead
314 Control Box Lens
320 Detection Lead
324 Control Box Lid
325 Control Box Front
326 Programmer Insert
401 Heat Engine
503 Wall Mounting Bracket
504 Front Panel
505 Fascia
506 Bracket - Gas Valve
507 Bracket - Expansion Vessel
313
507
231
320
504
227
224
503
505
215
309
306
211
214
206
205
204
223
326
325
302
110
114
113
121
118
131
124
127
117
104
106
203
106
105
228
229
304
116
115
219
401
218
307
324
135
506
217
112
111
120
119
308
314
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GRASSLIN