TYNE
Thermostatic bath shower mixer
Installation
and
Operating Instructions
Installers please note these InstructIons are to be left wIth the user
2180426D June 2006
Bath shower mixer
ii
CONTENTS Page
Introduction 1
Safety warnings 1
Main components 2
Site requirements 3
Typical suitable installations 4 − 5
Preparing the mixer valve 6
Siting of bath shower mixer 6
Installation 6 − 7
Leak testing 7
Fitting the fixed head showerhead holder 7 − 8
Hose and showerhead 8
Commissioning 8 − 9
Operating the bath shower mixer 9
Adjusting the showerhead 10
Spare parts 11
Fault finding 12 − 13
Guarantee, service policy, etc. rear cover
To check the product suitability for commercial and multiple installations, please contact
Triton’s specification advisory service before installation.
Telephone: 0870 067 3767
Facsimile: 0870 067 3334
E mail: technical@tritonshowers.co.uk
Bath shower mixer
INTRODUCTION
This book contains all the necessary fitting and
operating instructions for your Unichrome Tyne
thermostatic bath shower mixer.
Please read the instructions carefully. Read
through the whole of this book BEFORE
beginning your installation.
The mixer installation MUST be carried out by a
suitably competent person and in sequence of
this instruction book.
Care taken during the installation will ensure a
long and trouble free life from your mixer.
For best performance within the specified
running pressure range a minimum flow of eight
litres per minute should be available to both
inlets.
The bath shower mixer MUST NOT be subjected
to water temperatures above 80°C.
This mixer is designed for use with high pressure
systems found in the UK up to a maximum of 5
bar running pressure.
IMPORTANT: When installing this mixer with
a combination boiler or multipoint water
heater a flow regulator MUST be installed in
the unit.
The mixers are suitable for fully modulating type
combination boilers and multi-point hot water
heaters. It is also suitable for thermal storage
and unvented systems.
IMPORTANT: Before installing with a gas
instantaneous water heater, make sure it is
capable of delivering hot water at a minimum
switch-on flow rate of 3 litres per minute.
At flow rates between 3 and 8 litres per
minute, the appliance must be capable of
raising the water temperature to a minimum
of 52°C. Water temperature at the inlet to
the mixer must remain relatively constant
when flow rate adjustments are made (refer
to the water heater operating manual to confirm
compatibility with this mixer).
This mixer is supplied with an integral single
check valve and integral filter in each inlet. The
bath pillars inlet connections are to ¾” BSP tap
connector fittings (not supplied).
SAFETY WARNINGS
a Layout and sizing of pipework MUST be
such that when other services are used,
pressures at the mixer control inlets
DO NOT fall below the recommended
minimum.
b DO NOT choose a position where the
bath shower mixer could become
frozen.
c DO NOT connect this mixer to
any form of tap or fitting not
recommended by the manufacturer.
d The showerhead MUST be regularly cleaned
to remove scale and debris.
e Conveniently situated service valves in
each inlet supply MUST be fitted as an
independent method of isolating the
mixer should maintenance or servicing be
necessary.
f If it is intended to operate the mixer in areas
of hard water (above 200 ppm temporary
hardness), a scale inhibitor may have to
be fitted. For advice on the Triton scale
inhibitor, please contact Customer Service.
g DO NOT operate the mixer outside
the guidelines as laid out in ‘site
requirements’.
Replacement parts can be ordered from Triton
Customer Service. See ‘spare parts’ for details and part
numbers.
Due to continuous improvement and updating,
specification may be altered without prior notice.
1
Bath shower mixer
2
COMPONENTS
1
1
1 Tyne thermostatic mixer valve
2 Bath pillars
3 Showerhead (not shown)
4 Showerhead holder (not shown)
2
Bath shower mixer
SITE REQUIREMENTS
The installation must be in accordance with
Water Regulations and Bylaws.
Running water pressure:
1.0 bar min. to 5.0 bar max.
Maximum static water pressure:
10 bar
DO NOT connect the mixer to a gravity
hot supply and a mains cold supply (or
vice versa).
For optimum shower performance within the
specified running pressure range a minimum
flow of eight litres per minute should be
available to both inlets.
While the mixer is operational (open outlet),
inlet pressures must not be capable of exceeding
7 bar. For effective operation of the internal
seals, the maximum static pressure must not be
exceeded.
Note: 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
pipework can provide nominally equal pressures
at the bath shower mixer.
The pipework should be installed such that the
flow is not significantly affected by taps and
other appliances being operated elsewhere on
the premises.
Where thermal store systems and instantaneous
gas water heaters are used, if excessive drawoffs take place the boiler may not be able to
maintain an adequate output temperature.
This could result in the shower temperature
becoming noticeably cooler.
Water temperature requirements
Maximum hot water temperature = 80°C
Recommended maximum = 65°C
Minimum hot water temperature = 52°C
Maximum cold water temperature = 20°C
BS 6700 recommends that the temperature of
stored water should never exceed 65°C.
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.
Temperature adjustment range
The mixed water temperature can be adjusted
from cold through to a top limit which can 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.
3
Bath shower mixer
4
Service
valves
Balanced cold mains supply
Cold mains supply
Mixer
Expansion
vessel
Pressure
reducing valves
Stop tap
Unvented
hot water
storage unit
Safety devices
not shown
CH flow
Cold
mains
supply
Hot water
CH return
Service
valves
Mixer
Stop
tap
Expansion
vessel
Pressure
reducing valve
Combination
boiler
Fig.2 (diagrammatic view – not to scale)
Fig.3 (diagrammatic view – not to scale)
TYPICAL SUITABLE INSTALLATIONS
a) Instantaneous gas-heated systems,
e.g. combination boilers (fig.2)
The mixer control MUST be installed with a
multipoint gas water heater or combination
boiler of a fully modulating design (i.e.
to maintain relatively stable hot water
temperatures).
A drop tight pressure reducing valve MUST
be fitted if the supply pressures exceed 5 bar
running.
An expansion vessel (shown in fig.2) MUST be
fitted, and regularly maintained, to prevent the
mixer being damaged by excess pressures. This
may already be installed within the boiler (check
with manufacturer) and is in addition to the
normally larger central heating expansion vessel.
The layout and sizing of pipework MUST be
such that nominally equal inlet supply pressures
are achieved and the effects of other draw-offs
are minimised. The hot supply temperature
MUST remain a minimum of 10°C hotter
than the required blend temperature for best
performance.
b) Unvented mains pressure systems
(fig.3)
The mixer control can be installed with an
unvented, stored hot water cylinder.
For systems with no cold water take off after the
appliance reducing valve, it will be necessary to
fit an additional drop tight pressure reducing
valve when the mains pressure is over 5 bar.
The drop tight pressure reducing valve must be
set at the same value as the unvented package
pressure reducing valve.
Note: An additional expansion vessel (as shown
in fig.3) may be required if a second pressure
reducing valve is installed. This does not apply
to packages with a cold take off after the
pressure reducing valve to the cylinder.
The layout and sizing of pipework MUST be
such that nominally equal inlet supply pressures
are achieved and the effects of other draw-offs
are minimised.
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