INSTAFLOW
7
A ow control valve may be required
on the cold supply to the mixer tap to
balance the ow.
If the water heater is connected to a mixer tap,
then only NON thermostatic types should be
used (water mixes at the outlet pipe only).
If a non-return valve is fitted in the inlet feed to
the unit, then the installation should also include
a 3.5 bar pressure reducing valve and a 6.0 bar
pressure relief valve (fig.3).
WATER REQUIREMENTS
IMPORTANT: If installing onto a tiled wall
always mount the unit on the surface of the
tiles. NEVER tile up to the unit.
The installation MUST be in accordance with
Water Regulations. To ensure correct operation
of the heater, it must be connected to a cold
mains water supply with a minimum/maximum
running pressure as stated in Specifications on
page 5.
DO NOT use jointing compounds on any pipe
fittings for the installation.
The unit should be positioned as close as
possible to the outlet to minimise heat loss. The
recommended maximum distance is 0.5 metres.
The water heater is recommended to supply one
handwash (g.2).
When supplying a manual mixer tap a non-
return valve must be tted to the hot water
outlet and not to the cold water inlet.
WARNING!
The heater must not be positioned
where it will be subjected to freezing
conditions.
Pressure
reducing valve
(3.5 bar)
Hot
supply
Cold mains
supply
Pressure
relief valve
(6.0 bar)
Drain
valve
Stop
valve
Nearest cold
water draw off
Non-return
valve
Fig.3
HOT
COLD
Fig.2
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