Pre-Commissioning; Gas Supply; Ventilation; Pipework, Valves And Pump - Hamworthy Purewell VariHeat 65he Installation, Comissioning And Servicing Instructions

6.0 PRE-COMMISSIONING

The following checks must be carried out before the boiler is commissioned.

6.1 Gas Supply.

Ensure that gas installation pipework and meter have been soundness tested and purged to IGE/UP/1 or IGE/
UP/1A as appropriate. Test and purge certificates should be available for viewing.

6.2 Ventilation

Ensure that ventilation and air supply to plantroom is correct - refer to Appendix D (page 46). Air supply around the
rear of appliance is unobstructed.

6.3 Pipework, Valves and Pump

Ensure that;
•
Pipework and valve arrangement is installed to Hamworthy Heating recommendations.
•
Circulating system is full of water, vented and pressurised appropriately.
•
Circulation pump is fitted, working and interlocked where required.
•
Pipework connections to boiler are fitted correctly.
•
All necessary isolation valves are open.
•
Safety valve is correctly sized and located.
•
Condense connections on boiler and flue are connected and piped to drain.
•
Heat load is available.

6.4 Flue

Ensure that;
•
Flue system is correctly designed and installed to suit boilers.
•
Flue passages to chimney are clear.
•
Fill traps with water.

6.5 Electrical

Ensure that;
•
Electrical connections are correct and isolatable.
•
External controls are operational.
WARNING: IF THE FRONT COVER IS REMOVED WHILST THE BOILER IS OPERATIONAL,
CARE MUST BE TAKEN WITH ELECTRICAL COMPONENTS AND ACCESS TO PRIMARY
HAMWORTHY HEATING LTD
INSULATION.
13
PUREWELL VariHeat he 500001170/K