HAMWORTHY HEATING LTD
17
Wessex ModuMax
mk3
Boilers
500001308/C
Connecting flue pipework must be self
-
supporting to avoid stress on the boiler connections. Local unions are
recommended in the flue pipework to facilitate future servicing requirements.
Open Vented Systems
Boilers must not be capable of isolation from the vent pipe. Valves between boiler and vent pipe to be three way
type such that when boiler is isolated from vent pipe it is open to atmosphere. Safety valves should be mounted on
the boiler using the connection provided.
Sealed Systems
Boilers must not be capable of isolation from the safety valve. Valves between boiler and safety valve to be three
way type such that when boiler is isolated from the safety valve it is open to atmosphere. Hamworthy Heating Ltd
recommend using the safety valve connection provided on the boiler.
Where using Hamworthy Heating Ltd pipework kits, assembly of these is detailed in Operation and Maintenance
manual 500005117 (97 & 116), 500005119 (147/196/254) supplied with kit.
5.4 Electrical Connections:
The following electrical connections are provided on each module.
•
Supply: Live, Neutral and Earth. See Section 4.5 for details.
•
Optional Boiler Fault Alarm & Normal Run Signal Output (optional AGU clip
-
in kit)
•
0
-
10v Analogue Control Signal Input
•
Remote on/off Control Input
•
Boiler Pump Output, DHW pump output, motorised valve output
•
Safety Interlock Circuit Input
•
Optional LPB Bus for use with Merley cascade control (optional OCI clip
-
in kit)
& Master/Slave sequencing
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 pipework 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. Air supply slots in casing panels are clear and open.
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 and the water quality checked.
•
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.
