Hamworthy Purewell Installation, Commisioning And Maintenance Instructions page 6

9.0 ELECTRICAL SUPPLY .......................................................................... 8
9.1 Site Wiring
10.0 INSTALLATION OF BOILERS ............................................................. 9
10.1 General
10.2 Heat Exchanger Insulation Fitting Instructions
10.3 Gas pipe Fitting Instructions
10.4 Connection of Boilers to the Flue System
10.5 Gas Connection
10.6 Water Connections
10.7 Casing and Controls Assembly
11.0 COMMISSIONING AND TESTING ....................................................... 14
11.1 Electrical Installation
11.2 Gas Installation
11.3 Water Circulation System
11.4 Commissioning the Boiler
11.5 Boiler Checks Prior to Lighting
11.6 Gas Pressure Adjustment and Combustion Checks
11.7 Temperature Limiter (Limit Thermostat)
11.8 Safety Checks
11.9 User's Instructions
12.0 FAULT FINDING.................................................................................... 16
12.1 Safety Features Summary
12.2 Fault Finding Procedures
12.3 Possible Causes of Boiler Lockout
13.0 SERVICING........................................................................................... 16
14.0 REPLACEMENT OF FAILED COMPONENTS....................................
15.0 RECOMMENDED SPARES..................................................................
APPENDIX 'A' - INFORMATION RELATING TO PROPANE FIRING.........
FIGURES PAGE
Figure No. 1 Performance and General Data ............................................... 2
Figure No. 2 Recommended/minimum water flow rates................................ 3
Figure No. 3 Gas valve integrity check.......................................................... 5
Figure No. 4 Mechanical ventilation flow rates.............................................. 6
Figure No. 5 Heat Exchanger Insulation Fitting Instructions.......................... 10
Figure No. 6 Gas Pipe Fitting Instructions.................................................... 10/11
Figure No. 7 Enclosure assembly details....................................................... 12/13
Figure No. 8 Boiler installation typical layout. Vented and Un-vented boilers. 20
Figure No. 9 Overall dimensions of boiler and recommended clearances .... 21
Figure No. 10 Front assembly showing general layout .................................... 22
Figure No. 11 Maximum gas flows through pipes ............................................ 23
Figure No. 12 Site wiring details....................................................................... 24
Figure No. 13 Typical standard boiler wiring diagram...................................... 25
Figure No. 13a Wiring Diagram fitted with Pektron 0459 Series Igniter............. 26
Figure No. 14 Diagram of electrode assembly................................................. 27
Figure No. 15 Diagram of various gas valves fitted......................................... 28
Figure No. 16 Diagram of double gas valve layout........................................... 29
Figure No. 17 General fault finding................................................................... 30/31
HAMWORTHY HEATING LTD.
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PUREWELL AUTOMATIC IGNITION
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