Triton ASPIRA User manual

Installation and
operating instructions
Installers please note these InstructIons are to be left wIth the user
2180823D - May 2019
ASPIRA
concentric exposed
thermostatic mini mixer shower
The showerhead and hose supplied with this product are an integral
part of the safety of your shower. Failure to use genuine Triton
parts may cause injury and will invalidate your warranty

Concentric exposed thermostatic mixer shower
CONTENTS Page
MAIN COMPONENTS................................................................................1
INTRODUCTION........................................................................................2
SITE REQUIREMENTS .................................................................................2
SAFETY WARNINGS ...................................................................................2
PLUMBING REQUIREMENTS ......................................................................3
WATER SYSTEM REQUIREMENTS................................................................3
TYPICAL DOMESTIC INSTALLATIONS................................................... 4 - 6
INSTALLATION...........................................................................................7
FITTNG THE MIXER....................................................................................8
FLOW REGULATION...................................................................................9
FITTING THE FIXED ARM & SHOWERHEAD......................................... 9 -10
ANTI-SCALD PROTECTION ......................................................................10
LEAK TESTING .........................................................................................10
COMMISSIONING...................................................................................10
ADJUSTING THE MAXIMUM TEMPERATURE SETTING..............................11
OPERATING THE SHOWER .......................................................................12
APPROVALS .............................................................................................13
PRODUCT FLOW RATES...........................................................................13
DIMENSIONS ..........................................................................................14
SPARE PARTS............................................................................................15
MAINTENANCE .......................................................................................16
CLEANING THE FILTERS ...........................................................................16
FAULT FINDING............................................................................... 17 - 18
GUARANTEE, SERVICE POLICY, ETC. ........................................REAR COVER
To check the product suitability for commercial and multiple installations, please contact Triton’s
specication advisory service before installation.
Telephone:
E mail:
024 7637 2222
[email protected]

Concentric exposed thermostatic mixer shower
1
Ref. Description
1. Mixer shower body
2. Blanking plug
3. Outlet adapter
4. Mounting plate
Main components
MAIN COMPONENTS
5. Wall trim X2
6. Inlet nut and Olive X2
1
2
34
4
5
6
All dimensions listed in this fitting book regarding the product and installation are approximate.
*All kits are for illustration purposes only and are not supplied unless otherwise stated.
Fig.1

Concentric exposed thermostatic mixer shower
2
Replacement parts can be ordered from Triton Customer
Service. See ‘spare parts’ for details and part numbers.
INTRODUCTION
This book contains all the necessary tting and
operating instructions for your Triton 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.
Water pressure requirements
Running water pressure:
Low presure - 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 use with
traditional low pressure ‘gravity’ water systems,
using a cold water cistern and hot water cylinder
as well as for the higher pressure systems found
in the UK up to a maximum of 5 bar running
pressure.
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 tted in the cold mains supply pipe work
can provide nominally equal pressures at the
mixer shower.
Water minimum ow 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 requirements
Maximum hot water temperature: = 80°C
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.
The mixer shower MUST NOT be subjected to
water temperatures above 80°C.
BS 6700 recommends that the temperature of
stored water should never exceed 65°C.
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.
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
a. DO NOT choose a position where the shower
could become frozen.
b. DO NOT connect this mixer shower to any
form of tap or tting not recommended by
the manufacturer.
c. DO NOT allow the inlet pressure or ow
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.

Concentric exposed thermostatic mixer shower
3
PLUMBING REQUIREMENTS
DO NOT use jointing compounds on any pipe
ttings for the installation.
DO NOT solder ttings near the mixer unit
as heat can transfer along the pipework and
damage the mixer valve.
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. 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.
• It is preferable to ush the pipework to clear
the system of debris and check for leaks
before connecting to the mixer.
• The mixer inlets contain removable lters
that may become blocked if debris is not
ushed through before tting.
Commercial applications
• Triton recommends for all commercial
applications that, easily accessible, in-line
lters are used to aid maintenance.
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 Triton
scale inhibitor, please contact Customer
Service.
b. For best performance the showerhead 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.

Concentric exposed thermostatic mixer shower
4
*(kits are for illustration purposes only)
TYPICAL DOMESTIC INSTALLATIONS
Domestic gravity fed systems (g.2)
The shower control MUST be fed from a cold
water cistern and hot water cylinder providing
nominally equal pressures. There must be a
minimum of one metre head of water. The
minimum head distance is measured from the
base of the cold water cistern to top of the
showerhead.
If valves are gravity, fed then supply pressure
should be veried to ensure conditions of use
are appropriate for the valve.
Pumped gravity fed systems (g.3)
The shower control MUST be fed from a cold
water cistern and hot water cylinder providing
nominally equal pressures.
The mixer unit 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.
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
Fixed
head
Hot water
cylinder
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
Service
valves
Mixer
Fixed
head
*Fig.2 *(diagrammatic view – not to scale)
*(diagrammatic view – not to scale)
*Fig.3

Concentric exposed thermostatic mixer shower
5
*(kits are for illustration purposes only)
Instantaneous gas-heated systems, e.g.
combination boilers (g.4)
The shower control 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 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.
Unvented mains pressure systems (g.5)
The shower 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
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.
Service
valves
Balanced cold mains supply
Cold mains supply
Expansion
vessel
Pressure
reducing valves
Stop tap
Unvented
hot water
storage unit
Safety devices
not shown
Mixer
Fixed
head
CH flow
Cold
mains
supply
Hot water
CH return
Service
valves
Stop
tap
Expansion
vessel
Pressure
reducing valve
Combination
boiler
Mixer
Fixed
head
*Fig.4 *(diagrammatic view – not to scale)
*Fig.5 *(diagrammatic view – not to scale)

Concentric exposed thermostatic mixer shower
6
*(kits are for illustration purposes only)
Mains pressurised thermal store systems (g.6)
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).
Blender
valve
Flow
Cold mains supply
Hot
water
Stop tap
Expansion
vessel
Pressure
reducing valve Return
Service
valves
Boiler
Mixer
Fixed
head
*Fig.6 *(diagrammatic view – not to scale)

Concentric exposed thermostatic mixer shower
7
*(kits are for illustration purposes only)
INSTALLATION
Preparing the mixer valve
Check the contents to make sure all parts are
present.
Before starting the mixer 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 valve 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.7 for correct siting of the shower.
The mixer valve should be positioned as detailed,
with all controls within comfortable reached of
the user.
The accessories (showerhead, riser rail) can be
positioned above or to either side of the shower,
refer to g.7.
The valve must be installed in a position that
allows for easy access for future maintenance
and commissioning.
Supply pipework
Complete the pipework to the shower area
having decided on the position of the shower
and direction of pipe entry (for example rising,
falling or rear entry).
The hot and cold water pipes should not
be permanently attached to the wall within
one metre of the valve, before installation is
complete, to allow for nal adjustment of the
valve position.
Rear entry supplies
Using a spirit level, mark the route of incoming
hot and cold water supply pipes at a distance
of 150mm (approximately) between centres
(g.8).
Approx
30 - 35mm
Approx
150mm
Fig.8
Height of
showerhead
and shower
to suit user’s
requirement.
*Fig.7 *(diagrammatic view – not to scale)

Concentric exposed thermostatic mixer shower
8
O ring seal
Elbow
HOT
COLD
Trim
Nut
Olive
FITTING THE MIXER
Mark the position of the four locating screws
for the mounting plate, although if installing to
a solid brick wall using two diagonal holes will
usually be enough.
Drill and plug the wall. An appropriate drill bit
should be used. If the wall is brick, plasterboard
or a soft building block, appropriate wall plugs
and screws should be tted.
Fit the mounting plate onto the wall (g.9).
The inlet elbows allow for either rising, falling or
rear entry hot and cold water supplies. The elbows
have ‘O’ ring seals (g.10) to the body and do
not require PTFE tape or other means of sealing -
(see page 15 g.A for elbow disassembly and lter
cleaning).
See g.11 for how to install the 150mm elbows.
A suitable tool should be used to tighten the
adaptors into the body - a 20 pence coin for
example.
Note: Do not over tighten the adaptors
and care should be taken not to create
sharp edges on the tightening surfaces.
IMPORTANT:
Make sure that all the supply pipework has
been ushed through before tting the mixer.
Fit the trim onto the inlet water pipes followed
by the nut and olive (g.12).
Connect the hot water supply to the inlet marked
HOT, ‘H’ or red/orange label and connect the
cold water supply to the inlet marked COLD, ‘C’
or blue label (g.12).
Tighten all compression ttings.
Tighten all the grub screws to secure the mixer to
mounting plate.
Outlet adapter and plug
The outlet adapter and plug can be repositioned
dependant on the outlet required (top or
bottom). The adapter is suitable for a 15mm rigid
pipe connection (g.13).
If the adapter is used for a 15mm rigid pipe top
outlet, the ‘O’ ring will need to be moved from
one side of the adapter to the other to provide
the proper seal.
Fig.11
Fig.12
Fig.10
Fig.9
150mm adaptor
Grub screw
Elbow

Concentric exposed thermostatic mixer shower
9
Flow regulation
If a ow regulator is required for use with high-
pressure water systems, it may be tted with
any of the systems listed to reduce ow rate and
assist economy.
To t a ow regulator
A ow regulator for 15mm rigid pipe must be
tted into the showerhead see g.15.
FITTING THE FIXED ARM &
SHOWERHEAD
Note: Before installation, it is advised that the
mounting surface is made good to give a solid
xing point for the shower arm. It is not advised
to x the arm through plasterboard alone.
• Insert the pipework into the installed mixer
valve outlet (but do not tighten into the
mixer yet).
Note: Applying a small amount of silicon oil or
similar, may ease the fitting of the assembly.
• Push the pipe sections into the connector
fitting and then into the shower arm
(fig.14).
Offer the shower arm/riser assembly to the
mixer outlet, making sure the rail is aligned
vertically. Mark the position of the arms
three fixing holes.
• Remove the assembly from the wall.
• Drill and plug the wall. An appropriate
drill bit should be used. If the wall is brick,
plasterboard or a soft building block,
appropriate wall plugs and screws should be
fitted.
• Slide the retaining nut and olive onto the
bottom section of pipework (fig.14) and
insert the assembly into the mixer outlet.
• Align the assembly to the shower arm fixing
holes and, using suitable screws, secure the
arm to the wall.
• To secure the pipework to the mixer, then
slide the olive and nut down onto the mixer
outlet and tighten.
Fig.13
WARNING!
Check there are no hidden cables or pipes
before drilling holes for wall plugs. Use
great care when using power tools near water.
The use of a residual current device (RCD)
is always recommended.
Fig.14
Fixed shower arm
Connector tting
Olive
Nut
Riser pipe
Please note: it is not advised to cut the riser pipe.

Concentric exposed thermostatic mixer shower
10
Flow regulator
Shower arm
Angled top
section
MUST face
the outgoing
ow of water
Fig.15
Fixed
showerhead
Fitting the fixed showerhead
• Screw the fixed head (fig.15) to the shower arm.
• Make sure that the flow regulator is in the
correct orientation (if being fitted). The
correct orientation is to have the angled top
section facing the outlet flow of water.
• Check that the sealing washer is in place.
• Screw the showerhead tight to seal the joint
ANTI-SCALD PROTECTION
It is important that the mixer valve is tested
regularly to prevent the risk of scalding and
guarantee user safety. This can be carried out as
follows: with the mixer blend temperature set
at 38°C isolate the cold water supply. The outlet
ow rate will reduce to a safe level.
LEAK TESTING
Direct the outlet of the mixer 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.
Make sure that both the hot and cold water
supplies are fully open and at (or near to) their
design temperature and pressures, and are within
the requirements as stated.
Make sure the temperature control is at the
maximum temperature setting.
Allow the shower to run at the maximum
temperature setting until the water temperature
has stabilised. Rotate the temperature control
until your desired maximum showering
temperature is reached.
The mixer has a temperature stop to prevent
accidental rotation to higher temperatures. This
is adjustable to provide a maximum temperature
of 35°C - 45°C and should be checked on site to
guarantee user safety.
Temperature adjustment range
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.

Concentric exposed thermostatic mixer shower
11
ADJUSTING THE MAXIMUM
TEMPERATURE SETTING
(and tting the levers)
The maximum temperature stop factory set to
38°C (this can be adjusted during installation).
Note: Before tting the levers the
maximum temperature should be checked
on site to guarantee user safety
• To adjust the maximum temperature setting,
remove the temperature control knob.
• Allow the water to run until the temperature
has stabilised, adjust the temperature control
spindle by hand (g.16).
• When the showering temperature is
satisfactory turn off the shower.
• Fit the temperature knob, making sure the
maximum temperature stop pin is as close to
the at edge of the maximum temperature
stop as possible (g.17).
• To assemble the flow and temperature
controls, please see g.18 (see g.17 for the
position of the maximum temperature stop).
Secure the controls in place with the retaining
grub screws and t the levers (g.18).
Recommended outlet temperatures
The BuildCert TMV scheme recommends the
following set maximum mixed water outlet
temperatures for use in all premises:
44°C - for bath ll but see notes below.
41°C - for showers.
41°C - for washbasins.
38°C - for bidets.
The mixed water temperatures must never
exceed 46°C at terminal tting.
The British Burns Association recommends 37 to
37.5°C as a comfortable bathing temperature
for children. In premises covered by the Care
Standards Act 2000, the maximum mixed water
outlet temperature is 43°C.
Flat edge of
the Maximum
temperature stop
Maximum
temperature
stop pin
Pin positioned as close
to the at edge as possible
Fig.16
Fig.17
Grub screw of the
Maximum temperature
stop should be in the
9 o’clock position

Concentric exposed thermostatic mixer shower
12
Fig.18
Flow control
On Off
Hot
Cold
Temperature
control
Fig.19
Washer A
Flow control
Washer B
Maximum
temp stop
Temp
control
Grub
screw
Levers
OPERATING THE SHOWER (g.19)
• To start the shower, turn the On/Off ow
control clockwise until it hits the stop for
maximum ow.
• To stop the shower, turn the On/Off ow
control anti-clockwise until it hits the stop.
• To adjust the showering temperature rotate
the temperature control clockwise for cooler
and anti-clockwise for hotter.
CAUTION: Exposed metal surfaces may
become hot during use.
Lever
screw
Lever
screw

Concentric exposed thermostatic mixer shower
13
APPROVALS
This mixer valve has been designed to comply with the requirements of: BS EN 1111
BS EN 1287
WRAS
PRODUCT FLOW RATES
Flow Rate (l/m) 4.3 6.0 7.5 9.0 10.5 15.5 22.5 27.5 32.0 36.0
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.

Concentric exposed thermostatic mixer shower
14
All dimensions listed in this tting book regarding the product and installation are approximate.
DIMENSIONS
150mm
69mm
ø55mm
35mm
117mm
G1/2
G1/2

Concentric exposed thermostatic mixer shower
15
SPARE PARTS
Ref. Description Part No.
1. Elbow assembly complete: 83313810
2. Nut and Olive 83312790
3. Mounting plate 83313890
4. Handle assembly 86003860
5. Plug 83313900
6. Adapter 83313910
Ref. Description Part No.
7. Flow regulators are available from Triton at
the following ratings:
(3 Ltr/min) 22010310
(4 Ltr/min) 22011740
(5 Ltr/min) 22011750
(6 Ltr/min) 22011760
(7 Ltr/min) 22011610
(8 Ltr/min) 22011280
8. 110mm adaptor not supplied 86003140
9. Service kit 83314150
- 1m riser pipe not show 88400023
9
9
1
3
2
4
5
6
7
8

Concentric exposed thermostatic mixer shower
16
MAINTENANCE
The following maintenance procedure must
be carried out for commercial and health care
premises, but is not necessarily required for
domestic 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 this work out
(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 see
the spare parts list.
WARNING!
DO NOT use ‘powerful’ abrasive or
solvent cleaning uids when cleaning the
shower as they may damage the ttings.
Cleaning
Triton 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 lters (g.A)
It is advised that this should be carried out by a
qualied person.
• Turn off the water supplies before starting.
• Remove Hot and Cold elbows.
• Loosen the retaining grub screw and pull the
adaptor from the elbow assembly.
• Remove the retaining clip and valve.
• Wash the lter thoroughly under running water,
use a suitable brush to remove all debris.
• Reassemble in reverse order.
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
Elbow
Filter
Non-return
valve
Retaining clip
Elbow adaptor
Grub screw

Concentric exposed thermostatic mixer shower
17
Problem/Symptom Cause Action/Cure
The following can be carried out by a competent person
FAULT FINDING
1Water too hot. 1.1 Temperature
control incorrectly
commissioned.
1.1.1 Refer to commissioning section.
1.2 Not enough cold
water flowing
through shower.
1.2.1 Reposition the temperature control.
1.3 Increase in the
ambient cold water
temperature.
1.3.1 Reposition the temperature control.
1.4 Cold water supply
blocked.
1.4.1 Turn off shower and consult a competent
plumber or contact Customer Service.
1.5 High volume of
cold water drawn
off elsewhere.
1.5.1 Reduce the simultaneous demand from
the mains supply.
2Water too cold. 2.1 Temperature
control incorrectly
commissioned.
2.1.1 Refer to commissioning section.
2.2 Not enough hot
water flowing
through shower.
2.2.1 Reposition the temperature control
2.3 Decrease in the
ambient cold water
temperature.
2.3.1 Reposition the temperature control
2.4 Insufficient hot
water supplies from
the heating system.
2.4.1 Make sure heating appliance is set to
maximum or has sufficient stored hot
water.
2.4.2 Make sure heating appliance is igniting by
trying a hot water tap elsewhere.
2.5 Hot water supply
blocked or
restricted.
2.5.1 Turn off shower and consult a competent
plumber or contact Customer Service.
3High water flow
and/or poor
performance on a
mains fed system.
3.1 Flow regulator not
fitted.
3.1.1 Fit a suitable flow regulator (see ‘To fit a
flow regulator’ on page 9).

Concentric exposed thermostatic mixer shower
18
The following is recommended for a professional qualified installer only
Problem/Symptom Cause Action/Cure
FAULT FINDING
4Water does not
flow or shower
pattern collapses
when another out-
let is turned on.
4.1 Water supplies cut
off.
4.1.1 Check water elsewhere in house and if
necessary contact local water company.
4.2 Shower unit
blocked.
4.2.1 Inspect the filters. Clean if necessary.
4.3 Blockage in pipe-
work.
4.3.1 Turn off the shower and consult a suitably
competent plumber.
4.4 Showerhead
blocked.
4.4.1 Clean the showerhead.
4.5 System not capable
of supplying mul-
tiple outlets at the
same time.
4.5.1 Reduce the simultaneous demand.
4.5.2 Make sure stop or service valve is fully
open.
4.5.3 Check if there is sufficient water pressure.
5Water too cold. 5.1 Running pressure is
excess of maximum
recommended.
5.1.1 Fit a pressure reducing valve.
6Shower controls
noisy when in use.
6.1 Running pressure in
excess of maximum
recommended.
6.1.1 Fit a pressure reducing valve.
7Shower will not
shut off.
7.1. Pipework not
flushed out before
connecting to
the unit. Internal
components
damaged.
7.1.1 Service valve.