8
Connect the cold water supply pipe to the inlet of the
product, this is a 1/2” BSP connection.
Fit top and bottom screws and secure the back plate
to the wall ensuring that it is level.
Connect all other components as per gure 3. Turn
the isolating stop valve on slowly and check for leaks
in all pipe work, rectify as necessary.
Turn off the isolating stop valve.
6.3 Electrical Connections
WARNING
This product must be earthed.
The installation, supply cable and circuit protection
must conform to the latest BS7671 ‘Requirements
for electrical installations’ (IEE Wiring Regulations).
The Multipoint Instantaneous heater must only be
connected to a 230/240V ac supply.
Before making any electrical connections within the
installation, make sure that no terminal is live. If in
doubt, SWITCH OFF the whole installation at the
consumer unit or switch fuse (where tted).
The Multipoint Instantaneous heater must be
connected to its own independent electrical
circuit.
Check that your consumer unit (main fuse box):
1. has a main switch rating of 80A or above.
2. has a spare fuse way which will take the fuse/mcb
you need to t - (see gure. 4). If so, you can wire
the Multipoint Instantaneous direct to the spare fuse
of your consumer unit via a suitably rated isolating
switch- (see gure 4). Note that not all consumer
units will accept a 35/40/45A sized fuse.
If point 1 and 2 are not achievable, the installation is
not straight forward, since it could involve installing a
new consumer unit to serve the whole house or just
the Multipoint Instantaneous. You will need to call in
your Regional Electricity
Company to check the circuit and make the
connections to the meter or service connector
block. They should also check the earth bonding of
items in the vicinity.
A residual current device (rcd), formerly known as an
earth leakage circuit breaker (elcb), with a tripping
current of 30mA must be incorporated in the circuit.
6. Installation
6.1 General
After reading the previous sections in this booklet
and choosing a good location for the product please
install, paying attention to the following plumbing,
electrical and commissioning sections.
Mounting
Preparation
Remove the xing screw which holds the front cover
onto the back plate of the product. Carefully remove
the cover.
Fix the product heater loosely to the wall. The
wallplugs provided are suitable for most brick walls
(use a 6.5mm diameter masonry drill), but if your wall
is plasterboard or soft building block you should use
special wallplugs and an appropriate drill obtainable
from most hardware stores.
6.2 Water Connections
Plumbing
Decide where to connect to the water mains for your
feed to the product. Ensure that the pipe you have
selected is not a gas pipe, a hot water pipe or from a
cold water storage tank.
Cut the necessary pipe work to length, offer up to the
installation before making any soldered joints. Ensure
that the pipe is the correct length, as shortening it
can be difcult once joints have been made.
An isolating stop valve MUST be incorporated to the
main water supply to comply with Water Regulations
Assemble the installation before making any
soldered joints. DO NOT use jointing compounds on
any pipe ttings for the installation.
Remove the product before soldering the
connections.
WARNING
DO NOT solder pipes or ttings within
300mm of the heater once the pipe work
is located in the product as heat transfer
can damage components.
It is essential to ush the pipe in order to clear
debris, particles of solder and swarf.
Turn the water off after ushing using the isolating
stop valve.
