Triton 2181403E User manual

2181403E - June 2021
INSTALLATION AND OPERATING INSTRUCTIONS
Please read this book thoroughly and familiarise yourself with all instructions before commencing
installation and keep it for future reference.
The mixer shower installation MUST be carried out by a suitably qualied person, in the sequence
of this instruction book.
IMPORTANT SAFETY ADVICE
Failure to use genuine Triton parts may cause
injury and invalidate your guarantee.
FOR YOUR SERVICE REFERENCE
NOTE DOWN THE PRODUCT CODE BELOW
(FROM THE FRONT OR TOP OF THE BOX)
ALTERNATIVELY REGISTER BY TEL: [phone]
REGISTER ONLINE
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WIN
£100
LOVE2SHOP VOUCHERS
VISIT OUR WEBSITE TODAY
TRITONSHOWERS.CO.UK/REGISTER
PRODUCT REGISTRATION IS ONLY AVAILABLE
TO UNITS PURCHASED & INSTALLED IN THE UK
BAR MIXER
with diverter

Bar mixer shower
To check the product suitability for commercial and multiple installations, please contact Triton’s
specication advisory service before installation. Please see back of book for contact information.
CONTENTS Page
MAIN COMPONENTS.............................................................................1
DIMENSIONS ....................................................................................2 - 3
INTRODUCTION................................................................................4 - 5
TYPICAL DOMESTIC INSTALLATIONS.................................................6 - 7
SITING OF THE SHOWER ........................................................................8
PREPARING THE MIXER VALVE.................................................................8
INSTALLING THE BAR MIXER BRACKET ...................................................8
FITTING THE BAR MIXER..................................................................8 - 11
OPERATING THE SHOWER ....................................................................12
LEAK TESTING ......................................................................................13
COMMISSIONING................................................................................13
TEMPERATURE ADJUSTMENT................................................................14
ADJUSTING THE MAXIMUM TEMPERATURE SETTING ...........................14
MAINTENANCE ....................................................................................15
PRODUCT FLOW RATES ........................................................................16
FAULT FINDING.............................................................................17 - 18
GUARANTEE, SERVICE POLICY, ETC. ......................................... rear cover

Bar mixer shower
1
A
B
C
D
MAIN COMPONENTS
E
A. Thermostatic mixer valve
B. Riser pipe
C. Push Fit Bracket
D. Wall Bracket
E. Fixed head pipe
F. Slider
G. Hose (not shown)
H. Handset (not shown)
I. Fixed shower head (not shown)
F

Bar mixer shower
2
DIMENSIONS
150
266
96
111
131
45

Bar mixer shower
3
IMPORTANT
All dimensions listed in this fitting book regarding the product
and installation are approximate.
Consideration must be given for the adequate ceiling space.
400
55-75mm
1127
730

Bar mixer shower
4
INTRODUCTION
This book contains all the necessary tting 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 ttings) regulation 1999
and/or local Bylaws.
Maximum static
pressure (Bar)
10
Flow pressure, Hot
&Cold (Bar)
0.5 to 5
Hot supply
temperature (°C)
55 to 65
Cold supply
temperature ( °C)
Equal to or less than 25
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 ow rates.
For effective operation of the internal seals, the
maximum static pressure must not be exceeded.
A stored water temperature of 60°C is
considered sufcient to meet all normal
requirements and will minimise the effects of
scale in hard water areas.
Pressure Reducing Valve
On sites where the running pressure is above 5
bar, the use of a suitably sized pressure reducing
valve tted 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 specied running
pressure range a minimum ow of 8 litres per
minute should be available to both inlets.
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 ow to either incoming
supply then water from the shower will stop or
be reduced until both supplies are restored.
SAFETY WARNINGS
DO NOT allow the inlet pressure or ow rates
to operate outside the guidelines laid out in ‘site
requirements’.
DO NOT connect the mixer shower to a gravity
hot supply and a mains cold supply or vice versa.
APPROVALS
This mixer valve has the following approvals
• WRAS

Bar mixer shower
5
PLUMBING REQUIREMENTS
DO NOT choose a position where the mixer
shower could become frozen.
DO NOT connect to any form of tap or fitting
not recommended by the manufacturer.
DO NOT use jointing compounds on any pipe
ttings for the installation.
DO NOT solder ttings near the mixer shower
as heat can transfer along the pipework and
damage the mixer valve.
DO NOT subject the unit to a water temperature
above 80°C during installation, use, maintenance
or disinfection.
IMPORTANT:
• 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 pipework should be installed such
that other taps and appliances being
operated elsewhere on the premises do not
signicantly affect the ow
• When connecting pipework avoid using tight
90° elbows; swept or formed bends will give
the best performance.
• The hot water pipe entry MUST be made to
the left-hand side inlet, marked HOT, ‘H’ or
with a red/orange label.
• Suitable isolating valves (complying with
Water Regulations and Bylaws) MUST be
tted on the hot and cold water supplies
to the shower as an independent means
of isolating the water supplies should
maintenance or servicing be necessary
position as close as is practicable to the water
supply inlets of the mixer shower. If this
isolator is tted in a loft space, the loft must
have a xed access ladder and be boarded,
with appropriate lighting from the access
point to the isolator.
• Flush pipework to clear the system of debris
and check for leaks before connecting to the
mixer.
Commercial Applications
• For commercial applications in-line lters are
recommended.
Hard Water Areas
a. If it is intended to operate the shower
in areas of hard water (above 200-ppm
temporary hardness), a scale inhibitor
may have to be tted. For advice on the
scale inhibitor, please contact Customer
Experience.
b. For best performance the shower head MUST
be regularly cleaned to remove scale and
debris.
WATER SYSTEM REQUIREMENTS
This mixer shower is suitable for:
• Gravity water systems
• Pumped gravity systems
• Fully modulating type combination boilers
• Multi-point hot water heaters
• Thermal storage
• Unvented systems
When installing this mixer with a combination or
multi-point boiler, it may be necessary to install
ow regulation.
Check that the appliance is capable of delivering
hot water at a minimum switch-on ow rate
of 3 litres per minute. At ow rates between 3
and 8 litres per minute, the appliance MUST be
capable of raising the water temperature to 52°C
minimum.
Water temperature at the inlet of the mixer valve
MUST remain relatively constant when ow rate
adjustments are made - refer to the appliance
operating manual to conrm compatibility with
this mixer shower.
Where thermal store systems and instantaneous
gas water heaters are used, if excessive draw-off
takes place, the appliance may not be able to
maintain an adequate output temperature.
This could result in the shower temperature
becoming noticeably cooler.
Flow regulators can be tted with high-pressure
water systems to reduce ow rate and assist
economy.
The hot supply temperature MUST remain a
minimum of 10°C hotter than the required blend
temperature for optimum performance.

Bar mixer shower
6
TYPICAL DOMESTIC INSTALLATIONS
Pumped Gravity Fed Systems (g.1)
The mixer shower MUST be fed from a cold
water cistern and hot water cylinder providing
nominally equal pressures.
The shower may be used with a gravity fed
system with a pump to boost pressures as shown;
please refer to the pump installation guide to
establish the minimum head requirements for
automatic operation of the pump
Instantaneous Gas-heated Systems,
e.g. combination boilers (g.2)
The mixer shower MUST be installed with a
multi-point 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 tted if the supply pressures exceed 5 bar
running.
An expansion vessel MAY be tted, and
regularly maintained, to prevent the shower
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.
*Fig.2
*Fig.1
Hot water
cylinder
Mixer
Cold supply
Hot
supply
Alternative supply
(must be below
vent pipe tee)
Cold
water
mains
supply
Drain
valve
Gate
valve
Stop valve
Cold water
cistern
Minimum head
Other
draw-offs
Draw-off must point
down to avoid airlock
issues
Ring main
Isolating switch
or pull cord
switch (both
fused at 3A)
Service
valve
Service
valve
Pump
CH flow
Cold
mains
supply
Hot water
CH return
Service
valves
Mixer
Stop
tap
Expansion
vessel
Pressure
reducing valve
Combination
boiler
*Diagrammatic view – not to scale.
For illustration purposes only.
*Diagrammatic view – not to scale.
For illustration purposes only.

Bar mixer shower
7
*Fig.3
*Fig.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
Flow
Return
Boiler
Blender
valve
Cold mains supply
Hot
water
Stop tap
Expansion
vessel
Pressure
reducing valve
Service
valves
Mixer
Unvented Mains Pressure Systems
(g.3)
The mixer shower 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
t 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 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.
Mains Pressurised Thermal Store Systems
(g.4)
Packages of this type, tted with a tempering
valve (blender valve) can be used. A drop tight
pressure reducing valve MUST be tted if the
supply pressures exceed 5 bar running.
An expansion vessel MUST be tted and regularly
maintained, to ensure the unit is not damaged
by excess pressures. This may already be installed
externally or internally within the thermal store
(check with thermal store manufacturer).
*Diagrammatic view – not to scale.
For illustration purposes only.
*Diagrammatic view – not to scale.
For illustration purposes only.

Bar mixer shower
8
Consideration
must be given
for adequate
ceiling space
Shower
head can be
positioned
either side
of the rail.
Height of the
shower head
to suit user’s
requirement.
PREPARING THE SHOWER
Check the contents to make sure all parts are
present.
Before starting the installation, make sure all the
openings on the valve are carefully covered to
stop ingress of any debris etc. while routing the
supply pipework.
The shower Is suitable for exposed installation
onto solid wall, a stud partition wall, dry lined
wall or xing to a laminate cubicle or panel.
SITING OF THE SHOWER AND
ACCESSORIES
Refer to g.5 for correct siting of the shower.
The shower should be positioned as detailed,
with all controls within comfortable reach of the
user.
The shower head can be positioned above or to
either side of the shower.
INSTALL BAR MIXER BRACKETS
Guidance on installing the bar mixer brackets
(g.6) can be found in a separate instruction
book (supplied).
Please read the instructions carefully.
Read through the whole of this guide before
beginning installation.
The wall brackets installation must be carried
out by a suitably competent person and in the
sequence of the instruction book.
Fig.5
Fig.6
*Diagrammatic view – not to scale.
For illustration purposes only.

Bar mixer shower
9
INSTALLATION
FITTING THE DIVERTER
Before the mixer shower can be tted to the wall
brackets, the diverter must be tted.
Carefully push the diverter onto the connector at
the top face of the valve (g.7).
Once the diverter has been tted and faces
forward, fully tighten the small retaining grub
screw located at the rear of the diverter assembly
(g.8).
FITTING THE MIXER SHOWER
Offer the shower to the bar mixer brackets, check
that the sealing washers are in place and carefully
tighten the nuts.
Care must be taken not to damage the chrome
plated surface (g.9).
Fig.7
Fig.8
Fig.9

Bar mixer shower
10
FITTING THE RISER/FIXED HEAD RAIL
Mark the centre hole for the wall bracket
(g.10).
Drill and plug the wall. The wall plugs are suitable
for most brick walls – use an appropriate masonry
drill, but if the wall is plasterboard or a soft building
block, use suitable wall plugs and an appropriate
drill bit.
Secure the bracket to the wall.
NOTE: The elongated hole in the wall bracket
allows for a small amount of adjustment.
RISER KIT ASSEMBLY
Seat the upper part of the rail into the rail
support, making sure the bracket engages the
hexagonal fitting and the ‘O’ ring is in place
(fig.11).
Using a suitable screwdriver, tighten the retaining
screw to secure the rail into the support. Screw
the bottom part of the rail to the upper section
and tighten.
NOTE: The upper and lower riser pipework
MUST NOT be cut. The product may not
perform within stated specications if altered.
Alterations may invalidate the warranty.
FITTING THE SHOWER HEAD HOLDER
While depressing the button on the shower head
holder, slide the holder onto the rail below the
bracket (fig.12).
Fig.10
Fig.11
Fig.12
Upper rail
bottom rail
‘O’ ring
Rail support
Retaining
screw
Press and hold
button to unlock
mechanism
Slider/holder
assembly
Lower shower arm

Bar mixer shower
11
RISER KIT INSTALLATION
Making sure the tapered part of the seal is at the
bottom, slide the diverter collar and rubber seal
over the base of the riser rail assembly and fit into
the outlet of the diverter (fig.13).
Carefully locate the rail holder into the wall
bracket (fig.14). Ensure the riser rail is vertical
and there is no strain on the seal in the outlet of
the diverter.
Secure in place by tightening the grub screw in
the bracket.
Tighten the diverter collar.
FITTING THE HOSE AND SHOWER
HEAD
Screw one end of the flexible hose to the bottom
outlet connector on the diverter valve, making
sure that the sealing washer is in place and
screw the other end of the hose to the shower
head (fig.15). Locate the shower head into the
shower head holder.
Important: It is the conical end of the hose
which grips into the holder. The shower head will
not fit in the holder without the hose attached.
Screw the fixed head to the riser/fixed head rail.
Make sure the sealing washer is in place and
screw tight to seal the joint.
Fig.13
Fig.14
Fig.15
Grub screw
Washers
Showerhead

Bar mixer shower
12
OPERATING THE SHOWER
FLOW CONTROL - left hand side
To start the mixer, rotate the on/off ow control
(g.16).
TEMPERATURE CONTROL - right hand
side
To adjust the water temperature, rotate the
temperature control clockwise for cool or anti-
clockwise for hot (g.17).
To overcome the maximum temperature stop,
press the override button and turn.
Fig.17
Fig.16

Bar mixer shower
13
Fig.18
DIVERTER CONTROL
The diverter has two position settings.
The first allows the overhead shower head to be
selected and the second position selects the hand
held shower head.
The positions are selected by rotating the handle
clockwise or anticlockwise (g.18).
LEAK TESTING
Fit the hose to the outlet and direct it to waste.
Open the isolating valves to the shower and
check for leaks. Remedy any leaks found.
COMMISSIONING
Start the water ow by rotating the ow control
(left hand side).
Make sure that the hot and cold water supplies
are fully open and at (or near to) their design
temperature and pressures, and are within the
requirements stated in the site requirements.
Make sure the temperature control (right hand
side) is at the maximum temperature setting.
Allow the shower to run at this maximum
temperature setting until the water temperature
has stabilised.
Rotate the temperature control until your desired
showering temperature is reached.
IMPORTANT
The temperature adjustment range must be
checked to guarantee user safety.
Rotate the temperature control checking
the minimum and maximum showering
temperatatures; ADJUST THE MAXIMUM
TEMPERATURE STOP SETTING if required.
The following is recommended for domestic
installations but must be carried out for
commercial installations. Perform a thermal shut
off test described within the maintenance section

Bar mixer shower
14
Important
The mixer has a temperature stop to prevent
accidental rotation to higher temperatures. This
is adjustable to provide a maximum temperature
of 35°C – 46°C.
The mixed water temperature can be adjusted
from cold through to a top limit (which can
be pre-set during installation – factory set
at approximately 38°C) with full anti-scald
protection throughout the range.
Recommended Outlet Temperatures
The BuildCert TMV scheme recommends a
maximum mixed water outlet temperatures of
41°C for showers.
The mixed water temperatures must never
exceed 46°C.
The British Burns Association recommends 37°C
to 37.5°C as a comfortable bathing temperature
for children.
WARNINGS
Exposed metal surfaces may become hot during
use.
Adjusting the Maximum Temperature
Override Setting
Remove the temperature control by removing
the end cap and unscrewing the retaining screw
(g.28).
Turn the flow control to full flow. With a
steady flow running, adjust the temperature
valve spindle until the temperature is about
38°C.
When you are satised with the temperature
turn the ow control off. Ret the temperature
control. Secure with the screw and replace the
end cap.
TEMPERATURE ADJUSTMENT Fig.28

Bar mixer shower
15
Filter
O ring
Cleaning
The manufacturer recommends that all products
are cleaned using warm, soapy water.
Do not use abrasive or aggressive chemical
cleaning products as this may affect the product
surface nish and invalidate your guarantee.
Cleaning the Filters (g.A)
It is advised that this should be carried out by a
qualied person.
Turn off the water supplies before starting.
To gain access to the lters remove the unit from
the inlet ttings.
Remove the sealing washers from the inlets.
Wash thoroughly under running water to remove all
debris using a suitable brush. Ret the sealing washer
and reassemble the shower onto the inlet ttings.
WARNING!
DO NOT use powerful abrasive or
solvent cleaning uids when cleaning the
shower as they may damage the ttings.
MAINTENANCE
The following maintenance procedure is
recommended for domestic installations but
must be carried out for commercial installations.
Maintenance of the unit is required to give
continued performance after installation and that
it continues to provide scald prevention.
NOTE: A thermostatic mixing valve in need of
maintenance can be undetectable in normal
use and only becomes apparent when a
disruption occurs in the hot or cold water supply
temperatures or pressures.
The frequency of routine maintenance of the
internal of the valve will depend mainly on the
water supply condition. Experience of local
conditions will dictate the intervals for inspection
and in-service testing; guidance has been
given below which can be adjusted for local
requirements.
a) Initially check the lters for debris once every
three months and clean if necessary.
b) Perform a thermal shut off test every
three months and check the maximum
temperature setting. See the Commissioning
section for the details of this test and
readjustment of the maximum temperature
setting if required.
c) If the maximum water temperature varies
by more than 2°C from the commissioned
setting then carry out the following checks
• Check the isolating valves are fully open.
• Check the internal surface for scaling.
If the body requires descaling then it should be
removed from the pipework to carry out this
work - all rubber parts must be removed before
descaling.
• Check the function of the non-return valves
The non-return valves (NRVs) prevent cross-ow
between hot and cold supplies under unequal
pressure conditions. They are designed for long
life with no maintenance.
If these checks do not highlight the reason
for the temperature variation, then internal
components will require replacement; please
contact Customer Experience.
Disinfection
Where chlorine is used for the disinfection
of water systems all relevant guidelines and
approved codes of practice must be strictly
followed. Failure to comply with the relevant
guidelines and approved codes of practice may
invalidate your guarantee.
Fig.A

Bar mixer shower
16
PRODUCT FLOW RATES
Flow Rate (l/m) 1.0 2.5 4.0 5.0 6.0 8.0 13.5 17.0 19.5 22.0
Pressure (bar) 0.1 0.2 0.3 0.4 0.5 1.0 2.0 3.0 4.0 5.0
Conditions for test
Inlet temperatures comply with EN1111 requirements.
Outlet temperature 38C.
Flow control fully open.
Open outlet - No hose or shower head connected.
Important
Product ow rates are for guidance only.

Bar mixer shower
17
Problem Cause Action
The following can be carried out by a competent person
FAULT FINDING
1Water too hot.
2Water too cold.
3 High water flow
and/or poor
performance on a
mains fed system.
1.1 Temperature
control incorrectly
commissioned.
1.2 Not enough cold
water flowing through
shower.
1.3 Increase in the
ambient cold water
temperature.
1.4 Cold water supply
blocked.
1.5 High volume of cold
water drawn off
elsewhere.
2.1 Temperature
control incorrectly
commissioned.
2.2 Not enough hot
water flowing through
shower.
2.3 Decrease in the
ambient cold water
temperature.
2.4 Insufficient hot water
supplies from the
heating system.
2.5 Hot water supply
blocked or restricted.
2.6 Flow regulator not
fitted (HP systems
only).
3.1 Flow regulators not
fitted.
1.1.1 Refer to the Commissioning section.
1.2.1 Reposition temperature control knob
1.3.1 Reposition temperature control knob.
1.4.1 Turn off the shower and consult a
competent plumber or contact Customer
Experience.
1.5.1 Reduce the simultaneous demand from the
supply.
2.1.1 Refer to the Commissioning section.
2.2.1 Reposition temperature control knob
2.3.1 Reposition temperature control knob
2.4.1 Make sure heating appliance is set to maxi-
mum or has sufficient stored hot water.
2.4.2 Make sure heating appliance is igniting by
trying a hot water tap elsewhere.
2.5.1 Turn off shower and consult a competent
plumber or contact Moretti Customer
Experience.
2.6.1 Contact Customer Experience.
3.1.1 Contact Customer Experience.

Bar mixer shower
18
Problem Cause Action
4.1 Water supplies cut off.
4.2 Shower unit blocked.
4.3 Blockage in pipework.
4.4 Shower head blocked.
4.5 System not capable
of supplying multiple
outlets at the same
time.
5.1 Running pressure in
excess of maximum
recommended.
6.1 Running pressure in
excess of maximum
recommended.
7.1 Flow control cartridge
worn.
4.1.1 Check water elsewhere in house and if
necessary contact local water company.
4.2.1 Inspect the inlet filters. Clean if necessary.
4.3.1 Turn off the shower and consult a suitably
competent plumber.
4.4.1 Clean shower head.
4.5.1 Reduce the simultaneous demand.
4.5.2 Make sure stop/service valves are fully
open.
4.5.3 Check if sufficient water pressure.
5.1.1 Fit a pressure reducing valve.
6.1.1 Fit a pressure reducing valve.
7.1.1 Renew flow control cartridge.
4Water does not
flow or shower
pattern collapses
when another
outlet is turned
on.
5Water too cold.
6Shower controls
noisy while in
use.
7Shower will not
shut off.
FAULT FINDING
The following is recommended for a professional qualified installer only