Plumbing - Redring EXPRESSIONS 570 Installation Instructions Manual

b) The heater must not be mounted in the
direct spray from the handset.
c) The handset must not be able to come into
contact with the used water in the cubicle,
bath or basin. If it can, even after the hose
has been retained by the hose retainer (see
diagram 12), then a vacuum breaker must be
fitted. It should be noted that these devices
are liable to minor leakage so they must be
positioned so that any drips are not
detrimental.
4. Fix the riser rail with screws provided.
The fixing holes at the base of the brackets
will be revealed by removing the plastic fronts.
Assemble as shown in diagram 12.
5. Decide the position of the electrical cable to
the unit. If top or bottom entry is chosen,
carefully cut away the relevant walls of the
backplate as shown in diagram 6.
6. Decide the position of the cold water pipe into
the unit. If top or bottom entry is chosen,
carefully cut away the relevant walls of the
backplate as shown in diagram 6. If bottom
entry is chosen refer to note 4 in the plumbing
section.
7. If you have not yet done so, remove the front
cover (complete with knobs) by undoing the
retaining screws at the top and bottom of the
unit. Your shower is provided with three fixing
positions in the backplate (see diagram 6).
The top fixing hole is a key-hole slot and
should be marked and drilled first. Tighten top
screw with head protruding about 10mm from
wall and hook the backplate over the screw
head. This allows for correct and accurate
alignment of your shower before marking and
fixing the bottom positions. You may not wish
to tighten up the screws at this stage as the
holes are elongated to allow for adjustment
after other connections have taken place.
B) Plumbing
WARNING : - UNDER NO CIRCUMSTANCES
SHOULD THIS UNIT BE CONNECTED TO
THE MAINS COLD WATER SUPPLY.
The heater should be connected to a cold water
supply gravity fed from a static cold water cistern
with a minimum capacity of 114 litres (25 galls).
There must be a minimum head of water of 8 cm
(3") and a maximum head of 10 metres (33ft).
It is strongly advised to install the shower unit
using an independent supply from the cold water
storage cistern. The shower would then be totally
unaffected by other draw off points elsewhere in
the system and thus the pressure and
temperature will remain more stable. Therefore
the cold water supply should be taken directly
from the cold water cistern.
Under no circumstances should any of the
pipework supplying the shower unit rise
above the level of the bottom of the cold
water cistern.
Before connecting the pipework to the shower
ensure that the pipework is flushed out.
1. It is recommended that a water council listed
isolating valve is fitted between the cold water
storage cistern and the shower unit. This will
allow the shower unit to be serviced without
turning off the cold water at the water stop
valve and draining the cold water cistern.
2. 15mm copper pipe should be used. Ensure
all burrs have been removed from the
pipes before inserting into the push fit
inlet ports. Diagram 8 illustrates the correct
procedure for inserting and removing the
pipes from the inlet ports.
Take care to line up the inlet pipe correctly
with the inlet port to avoid straining the
internal 'O' ring seal.
DO NOT use solder fittings within 300mm
of plastic fittings.
3. To maintain the optimum performance, the
pipe runs should be kept as short as
possible, using sweeping bends rather than
right angles or restrictive fittings.
4. If bottom entry has been chosen, the inlet
port must be rotated through 180
required position. To do this unscrew the side
section from the shower unit (see diagram 6).
Rotate inlet connection ensuring that a snug
fit into the cradle is achieved, replace side
section retaining screw and remove the side
section and tighten screw.
5. With an isolating valve connecting, flush the
pipework through to remove particles
etc. before making the final connection to the
shower. A blockage in the waterways
(particularly the spray rings and filter) will
prevent the shower unit working properly.
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