Bristan ELVIRA SHWR PK Mounting instructions

Please keep this booklet for future
reference.
Installer, when you have read these
instructions please ensure you leave
them with the user.
Installation
Instructions and User
Guide
Elvira Exposed Sequential
Shower Pack & Exodus
Thermostatic Surface Mounted
Mini Shower Valve
Models covered:
ELVIRA SHWR PK, EXD SHXAR C

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Contents
Thank you for choosing Bristan, the UK’s leading showers and taps expert.
Your Bristan mixer tap is a thermostatic mixer incorporating a wax capsule
thermostat to ensure constant temperatures. These instructions are for your
guidance to a safe and successful installation and should be left with the user.
All products manufactured and supplied by Bristan are safe providing they are
installed correctly and receive regular maintenance in accordance with these
instructions.
Important Safety Information ............................................... 3
General Information .................................................................. 4
Product Features........................................................................ 5
Specifications .............................................................................. 6
Dimensions ................................................................................... 7
Pack Contents............................................................................. 8
Installation Requirements....................................................... 9-12
Flow Regulators.......................................................................... 13-14
Prior to Installation..................................................................... 15
Installation .................................................................................... 16-18
Shower Valve....................................................................... 16-17
Riser Rail................................................................................ 18
Operation..................................................................................... 19
Commissioning........................................................................... 20
Maintenance................................................................................. 21-22
Troubleshooting ......................................................................... 23-25
Guarantee...................................................................................... 26

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Important Safety Information
•Please read these instructions thoroughly and retain for future use.
•All products manufactured and supplied by Bristan are safe provided they
are installed, used correctly and receive regular maintenance in accordance
with these instructions.
•If you are in any doubt about your ability to install this product safely you
must employ the services of an experienced qualified plumber.
•Do not use if the showerhead or shower hose has been damaged or is
blocked.
•Do not crush or kink thw shower hose, this could damage the hose and
cause leaks.
•Remove all packaging and check the components for damage before
starting installation.
Warning: Before starting any installation please consider the following:
Prior to drilling into walls, check that there are no hidden electrical wires,
cables or water supply pipes. This can be checked with the aid of an
electronic detector.
•If power tools are used do not forget to:
Wear eye protection
Unplug equipment after use
•Important: Remember to turn o the mains water supply before connecting
to any existing pipe work. The fitting of isolating valves is required as close
as is practical to the supply inlet feeds of the thermostatic mixing valve
Warning: Before installing the new fitting it is essential that you
thoroughly flush through the pipework in order to remove any remaining
swarf, solder, etc.
Failure to carry out this procedure could cause problems or damage to the
workings of the fitting.
• This product must not be modified in any way as this will invalidate the
guarantee.

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General Information
This product has been tested to comply with the BS EN 1287:1999 (LP) and
BS EN 1111:1999 (HP) thermostatic mixing valve standards.
BS6700 recommends the temperature of stored water should never exceed
65ºC. A stored water temperature of 60ºC is considered sucient to meet
all normal requirements and will minimise the build-up of lime scale in hard
water areas.
If the fitting is installed at low pressure (tank fed), then the minimum distance
from the highest installed position of the showerhead to the underside of the
cold tank should be at least 1 metre to ensure adequate performance.
Note: Nominally equal (balanced) inlet supply pressures are recommended for
optimum performance with mixer showers.
This shower valve should be installed in compliance with the Water Supply
(Water Fittings) Regulations 1999 and the Scottish Byelaws 2004.
If in doubt, contact a registered plumber or your Local Water Authority or the
Secretary of The Institute of Plumbing, address as follows:-
The Institute of Plumbing,
64 Station Lane,
Hornchirch,
Essex, RM12 6NB
Tel: [phone]
Tel:[phone]
Recommended Usage
Domestic Heavy
Commercial
Light Commercial Health Care

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Product Features
On/O and Temperature Control
Turn the control anti-clockwise to
turn the shower on and increase the
temperature.
Turn the control clockwise to de-
crease the temperature and to turn
o the shower

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Specifications
Inlet connections: 15mm compression with adjustable centres.
Operating pressure range: Min. 0.1 bar - Max. 5.0 bar - Maximum
recommended imbalance between hot and cold supply should not exceed a
ratio of 5:1.
Maximum Static Pressure: 10 bar
Maximum outlet temperature: Factory pre-set to 42°C (can be re-set to suit
site conditions)
Supply requirements:
Minimum cold water supply temperature: 5°C.
Maximum cold water supply temperature: 25°C.
Maximum hot water supply temperature: 80°C.
(a maximum hot water supply temperature of 60 - 65°C is recommended for
ablutionary purposes)
Note: The inlet hot water temperature must be at least 10°C above the
required blend temperature (eg. mixer temperature 43°C: minimum hot
supply 53°C).

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Dimensions (mm’s)
110 - 155
Centres
95
34
685
*ELVIRA SHWR PK handset is shown in drawing.

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Pack Contents
1
2
3
4
5
7
8
9
10
11
12
1. Shower Valve
2. Covers x 2
3. Filters x 2 (Pre-fitted)
4. Long Elbows x 2
5. Green flow regulator (Pre-fitted)
6. Yellow flow regulator (Pre-fitted)
7. Backplate fixings x 2
8. Shower head (Multifunction)
9. Sealing washers x 2
10. Shower hose
11. Riser rail
12. Riser rail fixings x 4
13. Hexagonal Key
6
13
*ELVIRA SHWR PK handset is shown in drawing.

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Installation Requirements
This shower valve must be installed
in compliance with current water
regulations. If you have any
doubts about the water regulation
requirements contact your local
water services provider or use the
services of a professional plumber.
This shower valve is suitable for
use with the following water supply
systems:
• Gravity Fed Hot and Cold
(pressure balanced)
• Gravity Fed Hot and Mains
Cold (dierential pressure - see
Specification section on page 6)
• Instantaneous water heater
(combination boiler)
• Unvented System
• Pumped System
Gravity Fed Hot and Cold Gravity Fed Hot and Mains Cold
cold mains supply cold mains supply
Important: If you install this
shower valve with a gravity fed
system, there must be a minimum
head (vertical distance) from the
underside of the cold water storage
tank to the outlet of at least 1 metre.
Note: Pumped system (with Essex
flange) If you install this shower
valve to a pumped gravity fed system
where the minimum head (vertical
distance) from the underside of the
cold water storage tank to the top
of the hot water cylinder is less than
1 metre we recommend an Essex
flange is used as shown.
Flushing Pipe-work
Important: Before connecting
the shower valve (see ‘Installation’
on pages 16-17), the supply pipe-
work must be flushed to clear debris
before connecting the mixer tap.
Debris will reduce the performance
and life of the mixer.
1. Shower Valve
2. Covers x 2
3. Filters x 2 (Pre-fitted)
4. Long Elbows x 2
5. Green flow regulator (Pre-fitted)
6. Yellow flow regulator (Pre-fitted)
7. Backplate fixings x 2
8. Shower head (Multifunction)
9. Sealing washers x 2
10. Shower hose
11. Riser rail
12. Riser rail fixings x 4
13. Hexagonal Key
1m min.
1m
min.

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Installation Requirements
Unvented SystemInstantaneous Water Heater
Pumped System
cold mains supply
cold mains supply
cold mains supply
Pumped System (with Essex flange)
cold mains supply
1m min.
Key:
1m min.
50mm
If less
than
1m see
note.
Isolating
Valve
Reducing
Valve
Shower
Valve
Pump Essex
Flange

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Installation Requirements
This fitting needs to be installed in accordance with the following
Installation Requirements and Notes (IRN) to ensure they meet the
requirements of the Water Supply (Water Fittings) Regulations 1999 and
the Scottish Byelaws 2004.
IRN R001: See text of entry for Installation Requirements or Notes.
IRN R040 - Schedule 2-15 (1): The fitting shall be installed so that its outlet
discharges above the spill-over level of any fixed appliance as indicated
below:-
For backflow protection in domestic or installations up to, and including,
Fluid Category 3.
If the fitting cannot be installed as indicated in the table opposite it shall be
installed as either a or b below:
a: with an approved double check valve assembly or some other no less
eective backflow prevention device immediately upstream of the inlet.
b: so that it draws water by gravity only from a cistern, or cylinder having
a permanently open vent pipe, and the distributing pipe supplies no other
fittings (other than a draining tap) at a lower level.
For backflow protection in premises or installations up to, and including
Fluid Category 5.
The vertical distance of the outlet above the spill-over level shall be not less
than 20mm or twice the diameter of the inlet pipe to the fitting, which ever is
the greater. If the fitting cannot be installed as indicated it shall be installed
with a backflow prevention arrangement suitable for the Fluid Category.
Size of tap or
combination
fitting
Vertical distance
of outlet above
spill-over level
1. Not exceeding
½”
20mm
2. Exceeding ½”
but not
exceeding ¾”
25mm
3. Exceeding ¾” 70mm

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Installation Requirements
Conditions of use for Type 2 (Thermostatic mixer) valves
High Pressure Low Pressure
Maximum Static Pressure
(Bar)
10 10
Flow Pressure, Hot & Cold
(Bar)
0.5 to 5 0.1 to 1
Hot Supply Temperature
(˚C)
55 to 65 55 to 65
Cold Supply Temperature
(˚C)
Equal to or Less than
25
Equal to or Less than
25
Note: Valves operating outside these
conditions cannot be guaranteed
by the Scheme to operate as Type 2
valves.
If a water supply is fed by gravity
then the supply pressure should be
verified to ensure the conditions of
use are appropriate for the valve.
Recommended outlet temperatures
We recommend the following
set maximum mixed water outlet
temperatures for use in all premises:
41˚C for showers.
The mixed water temperatures must
never exceed 46˚C.
The maximum mixed water
temperature can be 2˚C above the
recommended maximum set outlet
temperatures.
Note: 46˚C is the maximum mixed
water temperature from the bath tap.
The maximum temperature takes
account of the allowable temperature
tolerances inherent in thermostatic
mixing valves and temperature losses
in metal baths.
Warning: It is not a safe bathing
temperature for adults or children.
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.
The thermostatic mixing valve (TMV)
will be installed in such a position
that maintenance of the TMV and
its valves and the commissioning
and testing of the TMV can be
undertaken.
The fitting of isolation valves is
required as close as is practical
to the water supply inlets of the
thermostatic mixing valve.

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Flow Regulators
Supply System Flow Regulator
Cold Supply Hot Supply Cold Hot Comments
0.1 to 1.0bar 0.1 to 1.0bar No No Maximum pressure
loss ratio 5:1
1 to 5bar or
pumped
1 to 5 bar or
pumped
Green
(7 litre)
Yellow
(5 litre)
*Use arrangement for
pumped system
Mains 1.0 -
10bar
Gravity 0.1 to 0.5
bar
Green
(7 litre) No
Gravity above 0.5
bar
Green
(7 litre)
Yellow
(5litre)
Unvented Mains/
Mains Pressurised
Instantaneous
Water Gas Heater
Green
(7 litre)
**Yellow
(5litre)
***Instantaneous
Water Electric
Heater
Yellow
(5litre) No
Any vented (open
outlet) Heater
Gas/Electric eg.
Electric Shower
Do not use a mixer valve - this would be
extremely dangerous

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Flow Regulators
*Regulators can be fitted if water economy is required
**Yellow (5 litre) regulator may not be necessary on some gas
water heaters.
*** Important: It is a requirement of Instantaneous Electric
Heaters that a stable flow of water passes through the heater.
This requirement can be satisfied by using a ‘flow stabiliser’
fitted prior to the heater and should be adjusted to give a
temperature of between 45-50C from the heater.
Flow regulators are factory fitted.
Study the table on the previous page and decide which flow
regulatos are required for your particular situation.
Unscrew both inlet elbows from the valve body and remove
flow regulator/s using long nose pliers from the non return
valve retainer.
Screw inlet elbows back into the valve body.
Non Return
Valve Retainer Olive
Filter
Inlet
Elbow
Compression
Nut
Non return
valve
Non return
valve retainer
Flow
regulator

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Prior to Installation
This shower valve is supplied with two
small and two large elbows to give varying
centres.
Note: The shower valve is supplied
with the small elbows fitted.
Choose elbow configuration to suit
Inlet centres
2 x small elbows – 110-130 centres
2 x large elbows – 136-155
1 small elbow / 1 large elbow – 125-145
All measurements are in millimetres.
To remove the elbows
To remove the elbows from the body
unscrew anti-clockwise.
To fit large elbows
Screw the large elbows clockwise
into the valve body.
Important: The elbows must have
at least two complete turns in the
valve body.
Screw in large elbow
clockwise
Unscrew small elbow
anti-clockwise

16
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Installation - Shower Valve
Important: Water supplies to the
mixer must be with hot on the left
and cold on the right when viewed
from the front.
Before Installation
Flush through the pipework to ensure
removal of debris. Turn o the mains
water supply and close any isolating
valves.
1. Inlet positions
The shower valve has three inlet positions
– top, bottom and rear. Rotate the inlet
elbows as required.
With the elbows screwed fully against the
valve body it can be unscrewed a
maximum of 1.5 turns to allow for lateral
tolerance.
Sucient 15mm diameter supply pipes
should protrude through the finished wall
surface to fit fully into the shower valve
elbows.
2. Attach backplate to wall
Loosen the ‘backplate’ grub screw on the
back of the valve using the hexagonal key.
Use the backplate as a template and mark
the centres of the fixing holes onto the
wall.
Warning: Please check for any
hidden pipes and cables before drilling
holes in the wall.
Drill suitable holes and insert the wall
plugs. Securely attach the backplate to
the wall using the screws provided.
110 -155mm
43mm
Hot Cold

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Installation - Shower Valve
3. Attach shower valve
Place the shrouds over the water
supply pipes. Insert the 15mm hot
and cold water supply pipes into the
inlet connections and tighten the
nuts. Ensure the olives are fitted to
the water supply pipes.
Secure the shower valve to the
backplate by tightening the
backplate grub screw
Re-attach the shower valve to the
backplate by tightening the grub
screw.
Note: The shower valve inlet
positions are shown at the rear as
an example.
See page 18 for installation of the
riser rail and shower hose.
Hot
supply
Cold
supply

18
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Installation - Shower Kit
1. Identify all components and study the diagram before commencing
installation.
2. The slider should not be removed from the rail during fitting. The
underside of the slider has a button to release the slider and allows the
height to be adjusted. Slide the hose retainer onto the end of the rail.
3. Position a wall bracket onto each end of the rail, ensuring the hole
through the top of the rail lines up with the hole in a wall bracket.
4. Position the constructed rail on the wall, bearing in mind the dier-
ent heights of people likely to use the shower and the length of the hose
when connected to the shower and passed through the hose retainer.
Mark the wall to indicate the upper and lower fixing screw position, ensur-
ing they are straight.
NOTE: Ensure the riser rail is close enough to the shower outlet so that
the handset will reach the slider bracket in its maximum position when
connected to the outlet with the hose.
Warning: Please check for any hidden pipes and cables before
drilling holes into the wall.
5. Drill the wall at the marked fixing positions to suit the wall fixings to be
used, loosely fix the brackets, slide the shrouds into place and fit the rail.
Check the positioning using a spirit level to ensure the rail is vertical.
6. Attach the handset to the hose ensuring the washer is fitted between
the hose and the handset.
7. Connect the other end of the hose to the shower valve.

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Operating the Shower
On/O and Temperature Control
Turn the lever anti-clockwise to turn on
and increase the temperature.
Turn the lever clockwise to decrease
the temperature and turn o.
Riser Rail
Push and hold the slider button to al-
low the slider to be raised and lowered.
The angle of the showerhead can also
be adjusted by turning the holder.
Slider
button
On
O Cold
Hot

20
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Commissioning
The first step in commissioning
a thermostatic mixing valve is to
check the following:
1. The designation of the
thermostatic mixing valve matches
the intended application.
2. The supply pressures are within
the valves operating range.
3. The supply temperatures are
within the valves operating range.
4. Isolating valves (and strainers
preferred) are provided.
If all these conditions are met,
proceed to set the temperature
as stipulated in the maintenance
section.
The mixed water temperature at the
terminal fitting must never exceed
46C.
It is a requirement that all approved
valves shall be verified against the
original set temperature results once
a year. When commissioning/testing
is due the following performance
checks shall be carried out:
• Measure the mixed water
temperature at the outlet.
• Carry out the cold water supply
isolation test by isolating the cold
water supply to the TMV wait for five
seconds, if water is still flowing check
that the temperature is below 46ºC.
If there is no significant change to
the set outet temperature (+/- 2C
or less change from the original
settings) and the fail-safe shut off is
functioning, then the valve is working
correctly and no further service is
required.
Notes: If there is a residual flow
during the commissioning or the
annual verification (cold water
isolation test), then this is acceptable
providing the temperature of the
water seeping from the valve is no
more than 2C above the designated
maximum mixed water outlet
temperature setting of the mixer
valve.
Temperature readings should be
taken at the normal flow rate after
allowing for the system to stabilise.
The sensing part of the thermometer
probe must be fully submerged in
the water that is to be tested.
Any TMV that has been adjusted or
serviced must be re-commissioned
and re-tested in accordance with
the instructions in the maintenance
section.
The installation of thermostatic
mixing valves must comply with the
requirements of the Water Supply
(Water Fittings) Regulations 1999.