Keston C45 Installation And Servicing Instructions page 13

WD536
cannot be touched by a person using the bath or shower. The C45, C40P and C55(P) are
classified as IP20 (IPX0) and are therefore suitable for installation in Zone 3 areas, unless
subject to hose down.
Compartment installation is permitted - such compartments must be constructed in
accordance with BS 6798.
The wall on which the boiler is mounted must be of suitable load bearing capacity and
must be non-combustible.
The Keston C45 and C55 can be located virtually anywhere desired provided that all
regulations are complied with. Because of the boiler's compact size and venting flexibility,
the installation is not limited to a boiler room setting. Before locating the boiler near a living
space consider whether the sounds generated by the boiler will be objectionable. The
boiler may be located within a cupboard enclosure to reduce noise levels if located within
a living space. LPG boilers must not be installed in a cellar.
2.4 ELECTRICAL
2.4.1 Electrical Connections
The boiler must be connected to a permanent 230V ~ 50Hz supply, fused at 3A.
The boiler has two thermostats and will therefore accept up to two switched
live signal inputs at 230V, such as heating and hot water demand. For
single signal systems switched live 1 may be used on its own. In the event
the boiler receives a signal from both inputs at the same time the setting of
thermostat 2, usually used for hot water demand, will take priority. Wiring
external to the boiler must be in accordance with current I.E.E wiring regulations
and local regulations.
The method of connection to the mains electricity supply must facilitate complete
electrical isolation of the boiler, preferably by the use of a fused, unswitched three
pin plug and a shuttered socket-outlet, both complying with the requirements of
Installation & Servicing Instructions
Chapter 2 - Boiler Location
[NB: Refer to
Section 2.8.3]
The Keston C45, C40P, C55 & C55P
Chimneys not used for
venting any other
appliance may be used.
Secure air & flue pipes at
chimney outlet.
Figure 2.3
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