Triton ASTI LEVER User manual

2181430C - October 2021
IMPORTANT SAFETY ADVICE
The shower head and hose supplied with
this product are a safety critical part of your
shower. 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 LABEL ON THE FRONT OR TOP OF THE BOX)
ALTERNATIVELY REGISTER BY TEL: [phone]
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 qualified person, in the sequence
of this instruction book.
ASTI LEVER
Bar Mixer
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£100
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TO UNITS PURCHASED & INSTALLED IN THE UK

Inclusive Bar Mixer Shower
CONTENTS Page
MAIN COMPONENTS.............................................................................1
INTRODUCTION................................................................................2 - 3
TYPICAL DOMESTIC INSTALLATIONS.................................................4 - 6
INSTALLATION...................................................................................7 - 9
PREPARING THE SHOWER .......................................................................7
SITING OF THE SHOWER ........................................................................7
SUPPLY PIPEWORK..................................................................................7
VARIABLE FITTINGS.................................................................................8
MAKING GOOD .....................................................................................9
FITTING THE SHOWER............................................................................9
FITTING THE MIXER CONTROLS...........................................................10
LEAK TESTING THE MIXER ....................................................................10
COMMISSIONING................................................................................11
FLOW REGULATION..............................................................................11
TEMPERATURE ADJUSTMENT RANGE....................................................12
ADJUSTING THE MAXIMUM TEMPERATURE SETTING ...........................12
OPERATING THE SHOWER ....................................................................13
DIMENSIONS .......................................................................................14
APPROVALS ..........................................................................................15
PRODUCT FLOW RATES ........................................................................15
MAINTENANCE ....................................................................................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. Please see back of book for contact information.
Installers please note these InstructIons are to be left wIth the user

Inclusive Bar Mixer Shower
1
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.
MAIN COMPONENTS
Fig.1
A. Thermostatic bar mixer valve
B. Dogleg connector X2
C. Cover trim X2
B
C
C
A

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2
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.
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 ow 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 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 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 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 mixer
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.

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3
PLUMBING REQUIREMENTS
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 necessaryy;
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.
• 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
• It is recommended that for all commercial
applications, 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
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.

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4
TYPICAL DOMESTIC
INSTALLATIONS
Domestic Gravity Fed Systems (g.2)
The mixer shower 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
shower head.
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 mixer shower 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
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
Mixer
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
Service
valves
Mixer
*Fig.3
*Fig.2 *Diagrammatic view – not to scale.
For illustration purpsoes only.
*Diagrammatic view – not to scale.
For illustration purpsoes only.

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5
Instantaneous Gas-heated Systems,
e.g. combination boilers (g.4)
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 mixer 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.
Unvented Mains Pressure Systems
(g.5)
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.
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
CH flow
Cold
mains
supply
Hot water
CH return
Service
valves
Stop
tap
Expansion
vessel
Pressure
reducing valve
Combination
boiler
Mixer
*Fig.4
*Fig.5
*Diagrammatic view – not to scale.
For illustration purpsoes only.
*Diagrammatic view – not to scale.
For illustration purpsoes only.

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6
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
*Fig.6 *Diagrammatic view – not to scale.
For illustration purpsoes only.

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7
INSTALLATION
PREPARING THE SHOWER
Check the contents to make sure all items are
present.
Before starting the installaion, make sure all of
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
• Stud partition wall
• Dry lined wall
• Laminate cubicle or panel
SITING OF THE SHOWER & ACCESSORIES
Refer to g.7 for correct siting of the shower.
The mixer shower should be positioned as
detailed, with all controls within comfortable
reach of the user.
The accessories (shower head, riser rail and/or
xed shower head) can be positioned above or
to either side of the shower.
The shower 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 be securely
attached within the wall or panel to support the
valve and prevent movement after installation.
Pipe tting depth should be checked in
conjunction with the information given in g.8
- a MINIMUM of 7mm of thread MUST be
available once the variable tting is secured
into the wall end tting and the cover trim has
been tted. This is to allow the mixer to be tted
correctly. Inlet pipe centres should be 150mm
apart.
*IMPORTANT!
BEFORE FIXING the supply pipework within
the wall, refer to the SUPPLY PIPEWORK
and VARIABLE FITTINGS sections.
See gures 8, 9 and 10 to ensure
the MINIMUM of 7mm of thread is
available once the cover trims are tted.
THIS IS REQUIRED TO ALLOW THE
CORRECT FITTING OF THE MIXER VALVE.
Shower head can
be mounted
either side of the
mixer
Height of
shower head
to suit user’s
requirements
*Fig.7 *Diagrammatic view – not to scale.
For illustration purpsoes only.

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*VARIABLE FITTINGS
The supply pipes can be routed from the side,
rising, rear or falling and must end in suitable
ttings to accept the variable connectors (g.8).
The variable connectors can be used to connect
to ½” BSP female elbow ttings in solid wall
installations. The inlet centres on the variable
connectors have a degree of adjustment to allow
for misalignment of pipe work.
The hot and cold supply pipes MUST be
anchored rigidly to support the valve and stop
any movement after installation.
Fig.9
Fig.8
Seal around
the variable
connectors
Appropriate
end tting
Once the trim
is tted, there
MUST be a
minimum of
7mm of thread
to allow the
mixer to be
tted correctly.
7mm

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9
MAKING GOOD
Make good the wall and complete the tiling.
NOTE: It is advised to use a suitable sealer
around the variable connector where it enters
the wall to stop water ingress (g.9).
Screw the supplied cover trims onto the ttings
until tight to the wall (g.10).
FITTING THE SHOWER
IMPORTANT: Make sure that all supply
pipework has been ushed through before
tting the mixer.
Offer the shower up to the ttings.
Check that the sealing washers are in place.
Screw the unions onto the ttings.
Fit the mixer controls (g.11 & 12) and carry
out the commissioning procedure.
Fig.10

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10
FITTING THE MIXER CONTROLS
The mixer controls will need to be fitted before
commissioning can be carried out.
Temperature Control - (g.11)
Fit the maximum temperature stop. The
orientation is shown in g.11.
Fit the temperature control (right hand side)
ensuring that the temperature override engages
with the max temperature stop. Once in place, fit
the retaining screw.
Flow Control - (g.12)
To fit the flow control (left hand side), the
flow control cartridge needs to be turned fully
clockwise until it stops.
NOTE: The flow control graphic (styles of this
may vary) should be positioned so that the
front edge of it is at the 12 o’clock position.
The remainder of the graphic should run
towards you.
If fitted correctly, the graphic and flow control
should now be sitting in the designed OFF
position.
Once in place, fit the retaining screw.
Do not fit the end trims until the commissioning
procedure has been carried out and the
temperature range checked.
LEAK TESTING THE MIXER
IMPORTANT: Flush out the pipework in
accordance with Water Regulations and
Bylaws.
Fit the hose to the outlet without the shower
head tted and direct it towards the waste
outlet.
Open the water isolating valves to the shower
and check for leaks.
If any leaks are found, rectify them before
carrying out the commissioning procedure.
Fig.12
Front of
graphic in the
12 o’clock
position
Flow control graphic
(style may vary)
Fig.11
Marker to be
located at the 12
o’clock position
when fitted to valve.
Turn the flow
control fully
clockwise
Maximum
temperature
stop

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11
Fig.13
Mixer outlet
Flow regulator
Flow regulator Water flow Angled top
section
Top
Note: the flow regulator must be fitted with the
angled top facing the outlet flow of water.
COMMISSIONING
Start the water ow by rotating the ow control
(left hand side) anti-clockwise.
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 as stated on page 2 & 12.
Make sure the temperature control (right hand
side) is at the maximum temperature setting
WITHOUT operating the maximum temperature
override button.
Allow the shower to run at this maximum
temperature setting until the water temperature
has stabilised.
Rotate the temperature control until your desired
maximum showering temperature is reached.
NOTE: If your desired temperature is above the
maximum temperature stop limit, please see the
ADJUSTING THE MAXIMUM TEMPERATURE
STOP SETTING section.
A nal temperature check SHOULD be made on-
site to guarantee user safety, and that the mixer
falls within recommended maximum mixed
water outlet temperatures - as stated on Page
12.
FLOW REGULATION
A ow regulator is supplied for use with high-
pressure water systems. It may be tted with
any of the systems listed to reduce ow rate and
assist economy.
Fit the ow regulator into the outlet tting as
shown in g.13.

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12
TEMPERATURE ADJUSTMENT RANGE
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.
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 - SEE PAGE 17.
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.
ADJUSTING THE MAXIMUM
TEMPERATURE STOP SETTING
Remove the end trim from the temperature
control to allow access to the retaining
screw. Undo the retaining screw and pull the
temperature control off (g.14).
The maximum temperature stop does not need
to be removed.
Turn the flow control to full flow. With a steady
flow running, adjust the temperature spindle
until the temperature is about 38°C (g.15).
When the showering temperature is satisfactory
turn off the shower. Refit the temperature
control.
Secure the temperature control in place with the
screw and fit the trim.
Fig.14
Fig.15
Temperature
Spindle
Temperature
Override
Button

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13
OPERATING THE SHOWER
To start the shower, rotate the flow control
(left-hand side) anti-clockwise. For maximum
flow, rotate the flow control anti-clockwise until
it stops.
To stop the water flow, rotate the flow control
clockwise until the water stops flowing (g.16).
To adjust the water temperature, rotate the
temperature control (right-hand side), clockwise
for a cooler shower or anti-clockwise for a hotter
shower (g.17).
To overcome the maximum temperature stop,
depress the temperature override button
(g.17) on the temperature control and rotate
clockwise past the 38°C position.
CAUTION: Exposed metal and chromed
surfaces may become hot during use.
Fig.17
Flow Control
Fig.16
Temperature
Control
Temperature
Override
Button

Inclusive Bar Mixer Shower
14
290.00
1/2" BSP
180.00 150.00
3/4” BSP
40.50
56.25
DIMENSIONS- All dimensions regarding the product and installation are approximate.

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15
APPROVALS
This mixer valve is approved to the requirements of: *BS EN 1111
*On pressures above 0.5 bar. *WRAS
Designation: HP-S (high pressure shower only)
PRODUCT FLOW RATES
Flow Rate (l/m) 5.0 6.9 9.0 10.9 12.0 17.5 25.5 31.5 36.5 41.0
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.

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16
Cleaning
It is recommended 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
qualified person.
• Turn off the water supplies before starting.
• To gain access to the lters remove the unit
from the inlet ttings.
• Remove the lter housing and disassemble.
• Wash the filters thoroughly under running
water, use a suitable brush to remove all debris.
• Reassemble and fit in reverse order.
WARNING!
DO NOT use ‘powerful’ abrasive or
solvent cleaning fluids when cleaning the
shower as they may damage the fittings.
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.
It is a requirement that all approved valves
shall be veried against the original set
temperature results once every 12 months.
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.
NOTE: The NRV’s will only operate in one
direction - water should be able to ow into the
unit from the inlets, but NOT back out through
the inlets.
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
‘O’ ring
Filter*
non-return valve
Filter housing
Note: the lter
housing is Left
hand thread.
Filter*
*Filter may be supplied in
either conguration

Inclusive Bar Mixer Shower
17
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
maximum or has sufficient stored hot water.
2.4.2 Make sure heating appliance is igniting by
trying a hot water tap elsewhere.
2.5.1 Turn off shower and consult a competent
plumber or contact Customer Experience.
2.6.1 Fit the supplied flow regulator (Page 11).
3.1.1 Fit the supplieed flow regulator (Page 11).
Problem Cause Action

Inclusive Bar Mixer Shower
18
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
Problem Cause Action
The following is recommended for a professional qualified installer only