HAMWORTHY HEATING LTD
19
FLEET H series
500001212/F
It is important that horizontal flue terminal discharges are positioned in accordance with the requirements detailed
in Figure 4.3.2.
In the case of twin duct applications (C53), air supply inlets must be positioned at least 300 mm from flue
terminals to prevent flue gas re-circulation. Hamworthy Heating recommend that flue terminals discharges are
positioned higher than air inlets.
To comply with the requirements of the Clean Air Act 1956 a maximum of 150 kW may be terminated with
horizontal flue discharges.
Equivalent lengths for 90° bends and 45° bends are given in Appendix C.
5.4 Electrical Connections:
The following electrical connections are provided on each module.
Supply: Live, Neutral and Earth. See Section 4.5 for details.
Supply Input for Boiler Fault and Normal Run Signals
Boiler General Fault Alarm Signal Output
Boiler Normal Run Signal Output
0-10v Analogue Control Signal Input
Remote on/off Control Input
Boiler Shunt Pump Output
Safety Interlock Circuit Input
Optional LPB Bus for use with Merley boiler sequencer control
6.0 PRE-COMMISSIONING
The following pre-commissioning check must be carried out before the boiler is commissioned.
6.1 Gas Supply.
Ensure that gas installation pipe work and meter has 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 plant room is correct.
6.3 Pipe work, Valves and Pump
Ensure that;
System flushing and suitable water treatment has been implemented
Pipe work and valve arrangement is installed to Hamworthy Heating recommendations.
Circulating system is full of water, vented and pressurised appropriately.
Circulation pump is operational.
Pipe work connections to boiler are fitted correctly.
All necessary isolation valves are open.
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.
6.5 Electrical
Ensure that;
Electrical connections are correct and isolatable.
External controls are operational.
WARNING: WHEN THE FRONT COVER IS REMOVED AND THE BOILER IS
OPERATIONAL, CARE MUST BE TAKEN WITH ELECTRICAL COMPONENTS AND
ACCESS TO PRIMARY INSULATION.
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