Triton unichrome THAMES User manual

INSTALLERS PLEASE NOTE THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER
2180452B October 2005
Installation
and
Operating
Instructions
THAMES
Thermostatic bar
mixer shower with
diverter

Bar mixer shower
ii
CONTENTS Page
Introduction 1
Safety warnings 1
Main components 2
Site requirements 3
Typical suitable installations 4 − 5
Instantaneous water heater appliance capabilities 5
Preparing the mixer valve 6
Siting of the shower 6
Installation 7 − 8
Fitting the riser/fixed head rail 8 − 9
Leak testing 10
Commissioning 10
Operating the bar diverter 11
Cleaning 11
Spare parts 12 − 13
Fault finding 14 − 15
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: [phone]
Facsimile: [phone]
E mail: [email protected]

Bar mixer shower
1
INTRODUCTION
This book contains all the necessary fitting
and operating instructions for your Unichrome
Thames Bar Diverter thermostatic mixer shower.
Please read these instructions carefully.
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 provide a
long and trouble free life from your shower.
For the best performance within the specified
running pressure range a minimum flow of eight
litres per minute should be available to both
inlets.
This mixer is designed to operate on higher
pressure systems found in the UK up to a
maximum of 5 bar running pressure. The valve
MUST NOT be subjected to water temperatures
above 80°C.
This mixer is suitable for fully modulating type
combination boilers and multi-point hot water
heaters. It is also suitable for thermal storage,
unvented systems and pumped gravity 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.
The 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 shower).
Inlet connections are to 15mm compression or
½” BSP female fittings (not supplied).
SAFETY WARNINGS
a Layout and sizing of pipework must be such
that when other services are used, pressures
at the shower control inlets do not fall
below the recommended minimum.
b DO NOT choose a position where the
shower could become frozen.
c DO NOT connect this mixer shower
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
shower should maintenance or servicing be
necessary.
f 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 fitted. For advice on the Triton
scale inhibitor, please contact Customer
Service.
g DO NOT operate the shower 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.

KEY TO MAIN COMPONENTS (fig.1)
7
1
2
3
4
6
8
5
Bar mixer shower
2
1 Thames thermostatic mixer valve
2 Combined riser/fixed head rail
3 Rail bracket
4 Fixed spray arm
5 Fixed head
6 Handset holder
7 Handset
8 Handset hose
9 Straight connector − 2 off (fig.2)
Fig.1
Fig.2
9

Bar mixer shower
3
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 high enough 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.
Should there be a loss of flow to either incoming
supply then water from the shower will stop or
be reduced to a trickle until both supplies are
restored.
SITE REQUIREMENTS
The installation must be in accordance with
Water Regulations and Byelaws.
Minimum running water pressure: 0.5 bar.
Maximum running water pressure: 5 bar.
Maximum static water pressure: 10 bar.
For the best performance within the specified
running pressure range a minimum flow of eight
litres per minute should be available to both
inlets.
While the mixer shower 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 mixer shower.
For best performance both the hot and cold
water supplies to the mixer should be fed at
nominally equal pressures.
The pipework should be installed such that the
flow is not significantly affected by other taps
and appliances being operated elsewhere on the
premises.
Where thermal store systems and instantaneous
gas water heaters are used, if excessive draw
offs take place the boiler may not be able to
maintain an adequate output temperature.
This could result in the shower temperature
becoming noticeably cooler.

Bar mixer shower
4
Service
valves
Balanced cold mains supply
Cold mains supply
Mixe
r
Expansion
vessel
Pressure
reducing valves
Stop tap
Unvented
hot water
storage unit
Safety devices
not shown
Fig.4 (diagrammatic view – not to scale)
CH flow
Cold
mains
supply
Hot water
CH return
Service
valves
Mixer
Stop
tap
Expansion
vessel
Pressure
reducing valve
Combination
boiler
Fig.3
(diagrammatic view – not to scale)
TYPICAL SUITABLE INSTALLATIONS
a) Instantaneous gas-heated systems,
e.g. combination boilers (fig.3)
The shower 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.3) MUST be
fitted, and regularly maintained, to make sure
the shower mixer is not 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 optimum
performance.
b) Unvented mains pressure systems
(fig.4)
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
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 (fig.4)
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.

Bar mixer shower
5
Flow
Return
Boiler
Blender
valve
Cold mains supply
Hot
water
Stop tap
Expansion
vessel
Pressure
reducing valve
Service
valves
Mixer
Fig.5
(diagrammatic view – not to scale)
Isolating switch
or pull cord
switch (both
fused at 3A)
Hot water
cylinder
Mixer
unit
Service
valve
Cold supply
Hot supply
Alternative
supply
Cold
water
mains
supply
Ring main
Drain
valve
Gate
valve
Service
valve
Other
draw-offs
Stop valve
Cold
water
cistern
Pump
150mm minimum
Fig.6 (diagrammatic view – not to scale)
c) Mains pressurised thermal store
systems (fig.5)
Packages of this type, fitted with a tempering
valve (blender valve) can be used. A drop tight
pressure reducing valve MUST be fitted if the
supply pressures exceed 5 bar running.
An expansion vessel (shown in fig.5) MUST be
fitted, and regularly maintained, to make sure
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).
d) Pump assisted gravity fed systems
(fig.6)
The pump must be fed from a cold water cistern
and hot water cylinder providing nominally
equal water pressures. The pump must be
capable of maintaining running pressures of
1 bar (fig.6).
INSTANTANEOUS WATER HEATERS
APPLIANCE CAPABILITIES
For the best performance from the shower
when connected to an instantaneous water
heater, the appliance must be capable of raising
the temperature of the incoming water to a
minimum of 52°C (125°F) and delivering a flow
rate of not less than eight litres per minute.
Triton recommends the fitting of the straight
connectors to allow flow limiters to be inserted
into both valve inlets.

Bar mixer shower
Height of
showerhead
and shower
to suit user’s
requirement.
Handset can
be positioned
either side
of the rail.
PREPARING THE MIXER VALVE
Check the contents to make sure all parts are
present.
Before installing, make sure all the openings
on the valve are carefully covered to stop the
ingress of any debris, etc. while routing the
supply pipework.
The shower valve is suitable for installation on a
solid wall, a stud partition wall, dry lined wall or
fixing to a laminate cubicle or panel.
The hot and cold water pipes should be securely
attached within the wall or panel to support the
valve and prevent movement after installation.
The hot water inlet has a red symbol next to the
inlet and must be on the left-hand side.
SITING OF THE SHOWER
Refer to (fig.7) for correct siting of the shower.
Position the shower and showerhead so that all
controls can be comfortably reached while using
the shower. The showerhead can be positioned
either side of the rail.
The unit must be positioned horizontally with
the shower hose outlet port at the bottom.
Note: Water Regulations requires the
showerhead be ‘constrained by a fixed or sliding
attachment so that it can only discharge water
at a point not less than 25mm above the spill-
over level of the relevant bath, shower tray or
other fixed appliance’. A double check valve, or
similar, MUST be fitted in the supply pipework
to prevent back-flow.
Fig.7 (diagrammatic view – not to scale)
6
WARNING!
The shower must not be positioned
where it will be subject to freezing
conditions.
Fig.8

INSTALLATION
Note: DO NOT connect the outlet of
the shower to anything other than the
fittings supplied.
DO NOT use jointing compounds on any
pipe fittings for the installation.
DO NOT solder fittings near the mixer
unit as heat can transfer along the
pipework and damage seals and
thermostatic components.
Note: Suitable service valves (complying with
Water Regulations and Byelaws) MUST be
fitted 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.
When connecting the pipework, avoid using
tight 90° elbows. Swept or formed bends will
give the best performance.
The supply pipes can be routed either from
the side, rising, rear or falling and must finish
in suitable fittings (fig.8) to accept the long
thread connectors.
The straight connectors can be used to connect
to ½” BSP female elbow fittings in solid wall
installations. The inlet centres on the mixer
valve must be aligned horizontally (fig.9) and
centred to 150mm.
If installing into a stud partition or other hollow
wall structures the installer will need to consider
building rear supports or other options. Such
options are beyond the scope of this guide.
The hot and cold supply pipes must be
anchored rigidly in order to support the valve
and prevent movement AFTER installation.
If installing in hollow walls or laminate cubicles,
fittings are supplied to compress onto the wall
to support the mixer valve (fig.10).
The maximum thickness of wall is about 20mm.
Leave enough room on the connector to fit the
compression nut and olive. At the front end, an
allowance must be made to accept the shower
union and collar.
Connect the 15mm pipework using standard
compression nut and olives (fig.11).
Bar mixer shower
7
150mm
1040mm approx
Datum
Hot
inlet
Cold
inlet
Bracket
mounting point
Fig.9
Connector
Collar
Locking nuts
Seals
Flanges
20mm. max. thickness
Fig.10
Fig.11

Diverter
collar
Riser rail
Sealing washer
Bar mixer shower
8
Flush out the pipework in accordance
with Water Regulations and Byelaws.
Screw the supplied collars onto the fittings until
tight to the wall. The collars will give a limited
degree of tolerance and the amount of exposed
thread will depend on the accuracy of the
elbows set in the wall.
Offer the shower valve to the fittings and,
making sure the sealing washers are in place,
screw the unions onto the fittings.
FITTING THE RISER/FIXED HEAD
RAIL
Mark the centre hole for the fixed head
mounting bracket at a height of about 1040mm
from the inlet datum (fig.9).
Note: The elongated hole in the mounting
bracket allows for a small amount of adjustment.
Drill and plug the wall (the wallplugs are
suitable for most brick walls − use an appropriate
masonry drill, but if the wall is plasterboard or a
soft building block, use suitable wallplugs and a
suitable drill bit).
Secure the bracket mounting plate (fig.12) to
the wall.
While depressing the button on the handset
holder (fig.13), slide the holder onto the rail
below the bracket.
Screw the fixed showerhead arm to the top of
the riser rail.
Slide the base of the riser rail assembly into the
opening in the diverter (fig.14), making sure
the sealing washer and locking collar are in
place. Fit the riser rail collar over the mounting
bracket (fig.15).
Adjust the riser rail position to suit.
Once correctly positioned, lock the diverter
collar − fingertight should be sufficient.
Note: There is a small amount of depth
adjustment within the collar. Adjust the depth
of the bracket before securing in place to the
mounting plate.
Using a suitable Allen key, secure the collar in
place by tightening the locking screw in the top
of the riser rail collar.
Slider/holder
assembly
Press and hold
button to unlock
mechanism
Riser rail
Fig.13
Fig.14
Fig.12

Bar mixer shower
9
Fitting the fixed showerhead
Screw the fixed head (fig.16) to the riser/fixed
head rail. Make sure the sealing washer is in
place and screw tight to seal the joint.
Fitting the hose and handset
Connect the one end of the flexible hose to the
bottom outlet connector (fig.17) on the mixer
valve, making sure that the sealing washer is in
place. Carry out a Leak Test − see page 10.
Screw the remaining end of the hose to the
handset then locate the handset into the
handset holder.
IMPORTANT: It is the conical end of the hose
which grips into the holder. The showerhead
will not fit in the holder without the hose
attached.
LEAK TESTING
Fit the hose to the outlet and direct it to waste.
Open the supplies and test for leaks in the valve
connections. Remedy any leaks if necessary.
COMMISSIONING
CHECK THAT ALL SUPPLY PIPEWORK HAS BEEN
FLUSHED THROUGH BEFORE COMMISSIONING.
Make sure that both 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.
Rotate the temperature control (fig.18) fully
anti-clockwise to its maximum temperature
setting and make sure the handset showerhead
is directed to waste.
Start the water flow to the handset by rotating
the flow & diverter control (fig.18) fully anti-
clockwise.
Allow the mixer to run at the maximum
temperature setting until the water temperature
has stabilised. Using the temperature control,
rotate until your desired maximum showering
temperature is reached.
The mixer valve is factory set to provide a
maximum outlet temperature of 38°C but this
should be checked on site to make sure the
setting has not been altered and also to ensure
Mounting
bracket
Adjustable
collar
Locking
screw
Fig.15
Washers
Showerhead
Fig.16
Fig.17

Bar mixer shower
10
user safety.
To adjust the maximum temperature
setting
Remove the temperature control lever to allow
access to the retaining grub screw inside.
Loosen the grub screw (fig.19) and remove the
temperature control.
Turn the flow & diverter control fully anti-
clockwise. With a steady flow running, adjust
the temperature spindle (fig.20) until the
temperature is about 38°C (turn clockwise for
hot or anti-clockwise for cold).
When the showering temperature is satisfactory
turn off the shower. Refit the temperature
control, making sure the temperature stop
aligns with the reference line on the mixer body
(fig.21). Secure in place with the grub screw
and refit the temperature lever.
OPERATING THE BAR DIVERTER
To start water flowing from the the fixed head
turn the flow & diverter control anti-clockwise
(fig.22).
To start water flowing from the handset turn the
flow & diverter control clockwise (fig.22).
To adjust the shower temperature simply turn
the temperature control − clockwise for cooler
and anti-clockwise for hotter (fig.23).
CAUTION: Exposed metal surfaces may
become hot during use.
CLEANING
DO NOT use abrasive or solvent cleaning
fluids. The shower unit should be cleaned
using a soft cloth and warm water.
Temperature
control
Fig.19
Spindle
Fig.20
Flow &
diverter
control
Temperature
control
Fig.18
Flow &
diverter
control
Temperature
control

Bar mixer shower
11
Anti-clockwise
for hotter water
Clockwise for
cooler water
Anti-clockwise
to select fixed head
Clockwise to
select handset
Anti-clockwise
for hotter water
Clockwise for
cooler water
Anti-clockwise
to select fixed head
Clockwise to
select handset
Fig.22
Fig.23
Fig.21

SPARE PARTS
Bar mixer shower
12
8
9
Ref. Description Part No.
1 Flow & diverter control 83308860
2 Temperature control 83308850
3 Adaptor 83308880
4 Flow cartridge 83308870
5 Thermostatic cartridge 83307250
6 Outlet 83307360
7 Non-return valve 83307290
8 Trim pack − premium 86001390
9 Straight connector UNPIPCON
1
3
2
4
6
5
7
7
8
8
1
3
2
4
6
5
7
7
8
8
1
3
2
4
6
5
7
7
8
8
1
3
2
4
6
5
7
7
8
8
1
3
2
4
6
5
7
7
8
8
1
3
2
4
6
5
7
7
8
8
1
3
2
4
6
5
7
7
8
8

10
11
13
14
15
12
10
10
Bar mixer shower
13
SPARE PARTS
Ref. Description Part No.
10 Riser rail assembly including 88400003
bracket
handset holder (see Ref:11)
fixed spray arm
11 Handset holder 83308410
12 Fixed showerhead 88600002
13 Handset 88500002
14 Flexi hose 28100000
15 Thames bar diverter unit 86001250
Optional parts
16 Dogleg connector 86001110
17 Bar valve bracket UNBMXBKT
17
16

Bar mixer shower
14
The following can be carried out by a competent person
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.
3.1 Water supplies cut off.
3.2 Blockage in pipework.
3.3 Showerhead blocked.
3.4 System not capable of
supplying multiple outlets
at the same time.
1.1.1 Refer to ‘commissioning’ section.
1.2.1 Turn temperature control anti-clockwise.
1.3.1 Turn temperature control anti-clockwise.
1.4.1 Turn off shower and consult a competent
plumber or contact Triton Customer Service.
1.5.1 Reduce the simultaneous demand from
the supply.
2.1.1 Refer to ‘commissioning’ section.
2.2.1 Turn the temperature control clockwise.
2.3.1 Turn the temperature control clockwise.
2.4.1 Make sure heating appliance is set to
maximum or has enough 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 Triton Customer Service.
3.1.1 Check water elsewhere in house and if
necessary contact local water company.
3.2.1 Turn off the shower and consult a
suitably competent plumber.
3.3.1 Clean showerhead.
3.4.1 Reduce the simultaneous demand.
3.4.2 Check stop/service valves are fully open.
3.4.3 Check if enough water pressure.
1 Water too hot.
2 Water too
cold.
3 Water does not
flow or shower
pattern collapses
when another
outlet is turned
on.
Problem/Symptom Cause Action/Cure
FAULT FINDING

Bar mixer shower
15
The following is recommended for a professional qualified installer only
4.1 Running pressure
in excess of maximum
recommended.
5.1 Running pressure
in excess of maximum
recommended.
6.1 Flow control cartridge
worn.
4.1.1 Fit a pressure reducing valve.
5.1.1 Fit a pressure reducing valve.
6.1.1 Renew flow control cartridge.
4 Water too
cold.
5 Shower
controls noisy
while in use.
6 Shower will
not shut off.
Problem/Symptom Cause Action/Cure
FAULT FINDING

Bar mixer shower
16

Bar mixer shower
17

Service Policy
In the event of a complaint occurring, the following
procedure should be followed:
1 Telephone Customer Service on
[phone] ([phone] in
Scotland and in Northern Ireland), having available
the model number and power rating of the
product, together with the date of purchase.
2 Triton Customer Service will be able to confirm
whether the fault can be rectified by either the
provision of a replacement part or a site visit from a
qualified Triton service engineer.
3 If a service call is required it will be booked and
the date of call confirmed. In order to expedite
your request, please have your postcode available
when booking a service call.
4 It is essential that you or an appointed
representative (who must be a person of 18 years
of age or more) is present during the service
engineer's visit and receipt of purchase is shown.
5 A charge will be made in the event of an aborted
service call by you but not by us, or where a call
under the terms of guarantee has been booked and
the failure is not product related (i.e. scaling and
furring, incorrect water pressure, installation faults).
6 If the product is no longer covered by the
guarantee, a charge will be made for the site visit
and for any parts supplied.
7 Service charges are based on the account being
settled when work is complete, the engineer will
then request payment for the invoice. If this is not
made to the service engineer or settled within 10
working days, an administration charge will be
added.
Replacement Parts Policy
Availability: It is the policy of Triton to maintain
availability of parts for the current range of
products for supply after the guarantee has expired.
Stocks of spare parts will be maintained for the
duration of the product’s manufacture and for a
period of five years thereafter.
In the event of a spare part not being available a
substitute part will be supplied.
Payment: The following payment methods can be
used to obtain spare parts:
1 By post, pre-payment of pro forma invoice by
cheque or money order.
2 By telephone, quoting credit card (MasterCard or
Visa) details.
3 By website order, www.tritonshowers.co.uk
Triton Plc, Triton Road,
Nuneaton, Warwickshire. CV11 4NR
Triton Plc guarantee this product against all
mechanical defects arising from faulty workmanship
or materials for a period of five years for domestic
use only, from the date of purchase, provided that
it has been installed by a competent person in full
accordance with the installation and operating
instructions.
Any part found to be defective during this
guarantee period we undertake to repair or replace
at our option without charge so long as it has been
properly maintained and operated in accordance
with the operating instructions, and has not been
subject to misuse or damage.
This product must not be taken apart, modified
or repaired except by a person authorised by
Triton Plc. This guarantee applies only to products
installed within the United Kingdom and does not
apply to products used commercially.
This guarantee does not affect your statutory rights.
What is not covered:
1 Breakdown due to: a) use other than domestic
use by you or your resident family; b) wilful act
or neglect; c) any malfunction resulting from the
incorrect use or quality of water or incorrect setting
of controls; d) faulty installation.
2 Repair costs for damage caused by foreign
objects or substances.
3 Total loss of the product due to non-availability
of parts.
4 Compensation for loss of use of the product or
consequential loss of any kind.
5 Call out charges where no fault has been found
with the unit.
6 The cost of repair or replacement of
showerheads, hoses, riser rails and/or wall brackets,
or any other accessories installed at the same time.
7 The cost of routine maintenance, adjustments,
overhaul modifications or loss or damage arising
therefrom, including the cost of repairing damage,
breakdown, malfunction caused by corrosion,
furring, pipe scaling, limescale, system debris or
frost.
TRITON STANDARD GUARANTEE
Unichrome Customer Service
☎ [phone]
Scottish and Northern Ireland
Customer Service
☎ [phone]
Trade Installer Hotline
☎ [phone]
Fax: [phone]
www.tritonshowers.co.uk
E mail: [email protected]