Hamworthy WESSEX-HE 200, Installation, Commissioning And Servicing Instructions

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HAMWORTHY HEATING LTD
WESSEX-HE 200 BOILER 500001008/K
iii
9.0 ELECTRICAL SUPPLY .................................................................................................. 9
9.1 Mains
Cable Connection
9.2 Boiler Wiring Diagram
9.3 Indication Signals and Volt Free Contacts
10.0 INSTALLATION OF BOILERS ..................................................................................... 10
10.1
General
10.2 Connection of Boilers to the Flue System
10.3 Gas Connections
11.0 COMMISSIONING AND TESTING ............................................................................... 11
11.1
Electrical Installation
11.2 Gas Installation
11.3 Water Circulation System
11.4 Lighting the Boiler (Initial Commissioning) and System Leakage Check
11.5 Gas Pressure, Adjustment and Combustion Checks
11.6 Limit Thermostat Adjustment
1 External Controls
2 Installation Noise
11.7 User’s Instructions
12.0 FAULT FINDING .......................................................................................................... 13
12.1 Summary of Safety Features
12.2 Fault Finding
12.3 Causes of Lockouts
13.0 SERVICING .................................................................................................................. 14
14.0 REPLACEMENT OF FAILED COMPONENTS ............................................................ 18
14.1 RECOMMENDED SPARES ......................................................................... 21
Appendix ‘A’ Information Relating to Propane Firing ......................................................... 31
FIGURES: -
1 Gas valve Leak test procedure ....................................................................................... 5
2 Schematic Boiler Installations (Typical) ........................................................................ 22
3 Wessex 200 HE Module Waterside Pressure Loss ...................................................... 23
4 Terminal Identification & Mains Cable Layout............................................................... 24
5 Wiring Diagram (Schematic) ......................................................................................... 25
6 Wessex 200 HE Module Layout.................................................................................... 26
7 Sequence Controller Coloured Programme Indicator Disc ........................................... 27
8 Wessex 200 HE Burner Flow System Schematic ......................................................... 27
9 Boiler Dimensions & Clearances .................................................................................. 28
10 Wessex 200 HE Pilot Burner Assembly........................................................................ 29
11 Wessex 400 County Arrangement Drawing.................................................................. 30