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1. It is recommended that a WRAS (Water Regulations Advisory Scheme) listed isolating
valve is fitted between the rising main and the unit. This will allow the unit to be serviced or
exchanged without having to turn off the water at the mains stop valve.
2. The heater can be fed from a header tank provided this has a minimum head height of 10.5
metres (35ft).
3. 15mm copper or stainless steel pipe should be used alongside with a standard
compression fitting. In multiple shower installations correct pipe-work sizes should be
calculated to maintain adequate flow to each shower.
4. a) If top entry is chosen, turn the elbow 180° into the required position and fit a standard
15mm in-line compression fitting. There is a removable side section, which will aid you
with this (diag.7).
b) If rear entry is chosen, turn the elbow 180° and treat it as top entry except for the fitting
of a ‘Yorkshire’ elbow in the rear channel. The removable side section will again be an
aid.
5. It is in order to use a WRAS (Water Regulations Advisory Scheme) approved sealant
sparingly whilst avoiding excess finding its way into shower operating parts.
6. With the stop valve connected, flush the pipe-work through to remove any particles
etc., before making the final connection to the shower. Blockage in the waterways
(particularly the handset and solenoid valve) will prevent the heater working properly.
7. The shower is designed to have an open outlet and should only be used with ‘Redring’
recommended fittings. Do not connect the handset until after the shower removable side
section and front cover are fitted.
WARNING - DO NOT FIT A TAP ON THE SHOWER OUTLET. TAKE CARE TO AVOID
RESTRICTING THE OUTLET AND FLOW FROM THE
HANDSET OR THE PRESSURE RELIEF DEVICE.
d) Electrical Connections
The electrical installation must be in accordance with the
current BS. 7671 (I.E.E. regulations).
1. The shower is designed for a single-phase A.C.
electrical supply. Please check the rating plate on the
unit to see what details apply.
2. The table is to be used as a guide only. Please refer to
the current wiring regulations.
Diagram 9
Diagram 10
8