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Inclusive Bar Mixer Shower
2
INTRODUCTION
This book contains all the necessary fitting and
operating instructions for your mixer shower.
Please read them carefully and read through
the whole of this book before beginning your
installation.
The shower installation must be carried out by
a suitably competent person and in sequence of
this instruction book.
Care taken during the installation will give a long
and trouble free life from your mixer shower.
SITE REQUIREMENTS
The installation must be in accordance with
water supply (water fittings) regulation 1999
and/or local Bylaws.
Water Pressure Requirements
Running water pressure:
Low pressure* - 0.1 bar min.
1.0 bar max.
High pressure - 0.5 bar min.
5.0 bar max.
Maximum static water pressure:
Low & High pressure - 10 bar
*This mixer shower is designed for high pressure
systems found in the UK, but can be installed
with low pressure gravity water systems with
reduced flow rates.
For effective operation of the internal seals, the
maximum static pressure must not be exceeded.
Pressure Reducing Valve
On sites where the running pressure is above 5
bar, the use of a suitably sized pressure reducing
valve fitted in the cold mains supply pipe work
can provide nominally equal pressures at the
mixer shower.
Water Minimum Flow Rate
For best performance within the specified running
pressure range a minimum flow of 8 litres per
minute should be available to both inlets.
Water Temperature Requirements
Recommended maximum: = 65°C
Minimum hot water temperature: = 55°C
Maximum cold water temperature: = 25°C
NOTE: Valves operating outside these conditions
cannot be guaranteed by the Scheme to operate
as Type 2 valves.
A stored water temperature of 60°C is
considered sufficient to meet all normal
requirements and will minimise the effects of
scale in hard water areas.
Water Temperature Adjustment and
Thermal Safety
The mixed water temperature can be adjusted
from cold through to a top limit which must
be preset during installation with full anti-scald
protection throughout the range (35°C to 40°C)
providing the hot water temperature at the inlet
remains 10°C above the outlet temperature.
Should there be a loss of flow to either incoming
supply then water from the shower will stop or
be reduced until both supplies are restored.
SAFETY WARNINGS
a. DO NOT choose a position where the mixer
shower could become frozen.
b. DO NOT connect this mixer shower to any
form of tap or fitting not recommended by
the manufacturer.
c. DO NOT allow the inlet pressure or flow
rates to operate outside the guidelines laid
out in Site Requirements.
d. DO NOT connect the mixer shower to a
gravity hot supply and a mains cold supply or
vice versa.