HAMWORTHY HEATING LTD
12
WESSEX MODU
MAX
100 SERIES
500001123/C
Connecting pipework must be self-supporting to avoid stress on the boiler connections. Local unions are
recommended in the 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 vent pipe 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 supplied with kit.
5.3 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 RVA 47 cascade control
Prior to fitting the flue collector assembly, check all
water and gas connections for soundness.
Lubricate the seals on the boiler flue spigot to en-
able easy movement and adjustment.
Adjust and fit the assembled flue collector box to
the boiler flue spigots and fit the condense drain
discharge pipe to the base of the flue using the
fitting supplied.
Figure 5.2.2 - Flue Header Connection
32mm condense
trap fitted for
connection to drain
