If the water pressure exceeds 7 bar a suitable water
pressure reducing valve will need to be fitted to the
water supply to bring it to a level that the machine
can cope with.
Failure to do so could result in
the boiler overfilling.
The manufacturers cannot be held responsible
for any machine malfunction if the water pressure
is not within the range stated. If in doubt, consult
your water supply company.
*To meet WRAS installation requirements, an
approved single-check valve providing back-flow
prevention protection, should be fitted at the point
of connection between the water supply and the
appliances.
NOTE: Water that has been treated by the Reverse
Osmosis process can become aggressive (due to
lack of minerals or Ions), and in extreme cases can
cause leaching and corrosion of pipes, fittings and
other metal parts within the appliance.
If the appliance is being fed by water treated by
Reverse Osmosis, we strongly recommend that the
water is tested regularly.
If you have any queries in this respect, please contact
our customer services team.
• Connect to a suitable cold water drinking
supply using 15mm copper pipe and using
15mm straight push-fit coupling supplied.
• Push the 15mm coupling firmly onto the water
inlet solenoid pipe.
• Push the 15mm cold water supply firmly into
the bottom of the fitting.
Alternative Rear Entry Installation (Water
Connection):
Replace 15mm straight coupling
(supplied), with a 15mm push-fit elbow instead
(available from plumber’s merchants). Push elbow
firmly onto inlet solenoid pipe with the right angle
facing the wall. Push the 15mm cold water supply
firmly into the fitting.
NOTE: To avoid damage to the appliance, do not use
any solder connections whilst pipes are connected to
the boiler.
• A 15mm stop valve must be fitted between
the water supply and the boiler so that it can
be isolated.
• Water purification filters are available from
Instanta to ensure fresh tasting water. In hard
water areas, scale can cause problems.
Fitting a scale reducer will help minimise scale
but will not eliminate scale completely.
WE REGRET THAT INSTANTA CANNOT BE HELD
RESPONSIBLE FOR SCALE RELATED PROBLEMS
IF A SCALE REDUCER HAS BEEN INSTALLED
d) OVERFLOW/DRAIN
The fitting kit includes a second 15mm, straight
push-fit coupling with a small piece of 15mm copper
pipe pushed into it.
This connector must be
pushed onto the corresponding brass overflow
connection on the services-bracket (along side
the solenoid).
If the overflow is to be extended, remove the copper
pipe (supplied) and replace with 15mm pipe of your
chosen length. The pipe must have a continuous fall
and should not be longer than 300mm (if a longer run
is required, use 22mm pipe to avoid airlocks.
The overflow pipe should have no more than four
right angle bends and should discharge to a safe,
visible position.
Alternative Rear Entry Installation (Overflow/Drain):
If rear entry has been chosen, the straight push-on
coupling must be replaced with a 15mm push-fit
elbow (available from plumber’s merchants).
Push the elbow onto the brass overflow connection
on the services-bracket (alongside the solenoid).
As described above, the pipe must have a
continuous fall etc.
Under certain conditions the overflow pipe
could vent steam, hot water or cold water.
The manufacturers cannot be held responsible for
property damage caused by flooding, because of
a failure to direct the overflow-outlet to a suitable
position where water can discharge safely to a
waste or drain.
If in all circumstances, it is absolutely not possible
to direct the boiler overflow-outlet to a suitable
position where overflowing water can run away
safely, then the mains water supply to the boiler
should be isolated and the unit switched off
whenever it is left unattended for long periods
(e.g. overnight).
VENT PIPE:
A small silicone rubber tube connects the tank-lid to
the back panel. Ensure this is connected (and hasn’t
come off in transit) and that the outlet fitting in the
back-panel is not obstructed.
e) FITTING CASE
• Attach the Earth wire connection to bottom
of stainless steel boiler-case using M4 screw
& washer supplied.
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