EHC
Fusion E10 Combi
–
Installation and technical manual
Page 17
12.
Installation – Electrical
All electrical connections must be made by a qualified person. All
wiring must be carried out in accordance with current IEE regulations.
BS7671 (17th edition)
THIS APPLIANCE (including all pipework) MUST BE EARTHED
A load check should be carried out to ensure that there is sufficient current and voltage for
the intended boiler installation. Consideration should be taken into account with regard to the
remainder of the properties load requirements.
All boilers must be protected with a double pole RCD with a trip sensitivity of 30mA, capable
of breaking the full load current to BS EN 61008:1994. Additionally a double pole switch with
a minimum of 3mm contact separation must be installed local to the boiler.
Boiler control wiring, the boilers internal controls are prewired within the unit using a plug-it
system for easy replacment of components. The control power supply cable exits the boiler
on the left hand side, this cable must be connected and protected via a 3 amp fused spur
and wired so that when the main power to the boiler is removed the control circuit is isolated.
When other high current devices are installed within the same property, (eg: electric
showers,) we recommend that our flow sensor should be installed interrupting the volt free
control signal to the boiler when the shower is in use.
Cable entry positions
The electrical supply cables can be routed from the top left hand panel of the unit (see
Diagram below). There are 3 cable entry holes, 2 at the top of the left hand side panel and 1
on bottom right.
Cable grommets are supplied and fitted to the boiler‘s cable entry points. All cables should
be secured to meet current regulations. Cable ties are provided within the fusion boiler to
secure incoming power cables.
Immersion heater mains supply
The Fusion E10 combi is fitted with a 3 Kw back up immersion heater. It is recommended
that this is connected via a double pole isolation switch and connected to the consumer unit
using the correct size mcb