Operating instructions

Flushing and Water Treatment
The performance of the appliance could be impaired by
system debris or the effects of corrosion. The system must be
flushed thoroughly to remove metal filings, solder, machining
oils and other fluxes and greases before connecting the
boiler.
An appropriate flushing and descaling agent should be used,
particularly if it is an existing system. Refer to BS 7593 (1992)
for guidance. For more information on the use of corrosion
inhibitors, flushing and descaling agents, advice can be
sought from the manufacturers of water treatment products
such as:
Betz Dearbon Ltd
Foundry Lane
Widnes
Cheshire
WA8 8UD
Tel: [phone]
Fernox Manufacturing
Britannica Works
Clavering
Essex
CBll 4QZ
Tel: [phone]
System Controls
The boiler is electrically controlled and is suitable for most
modern electronic time and temperature external controls.
The addition of such controls can be beneficial to the efficient
operation of the system.
The boiler connections for external controls are 24V and so
only controls of 24V or that have voltage free contacts should
be used.
They must not be connected to 230 V supply.