Bristan H64WMT2 Mounting instructions

Models Covered:
H64WMT2, H64DMT2
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
Single Sequential D08 TMV3
Thermostatic Mixer Taps

Thank you for choosing Bristan, the UK’s leading taps and showers
expert. We have designed this product with your enjoyment in mind.
Please read these instructions thoroughly and retain for future
use. To ensure that it works to its full potential, it needs to be fitted
correctly. These fitting instructions have been created to give you all
of the information you need and, if you need any further help, please
do not hesitate to give us a call on 0330 026 6273.
Contents
• Important Safety Information 3
• Specification 4
• Product Benefits 5
• Installation Requirements 6-8
• Prior to Installation 9
• Installation - Wall Mounted 10
• Installation - Deck Mounted 11
• General Cleaning 12
• Operation 12
• Maintenance 13-17
• Troubleshooting 18-19
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Contents
2

All products manufactured and supplied by Bristan are safe to use
provided that they are installed, operated and receive regular maintenance
in accordance with these instructions.
This product has been tested to the TMV3 scheme for use in Healthcare and
Commercial situations and performs to the requirements of NHS Specification
D08. It also satisfies the requirements of the Water Supply (Water Fittings)
Regulations 1999 and current by-laws. For full Installation Requirements &
Notes (IRN) please visit wras.co.uk/directory.
To ensure the product is installed in compliance to the TMV3 and D08
standards, please refer to the TMV Manual provided separately with this
product. Failure to do so may mean that the tap is no longer compliant.
Isolation valves must be fitted to the inlet water supplies to ensure ease of
future maintenance. Before installing this product the water supply must be
thoroughly flushed in order to remove any swarf, solder etc. Full access must
be made available for future maintenance/servicing purposes.
Before 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
This product must not be modified in any way as this will invalidate
the guarantee.
If you are in any doubt about your ability to install this product safely you
must employ the services of an experienced qualified plumber. If in doubt,
contact a registered plumber, your Local Water Authority or the Secretary of
the Institute of Plumbing, address as follows:-
The Institute of Plumbing,
64 Station Lane,
Hornchurch,
Essex,
RM12 6NB, Tel: [phone]
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Important Safety Information

Recommended Usage
Domestic Heavy
Commercial
Light
Commercial Health Care
Inlet connections:
15mm Compression with 150-200mm
adjustable centres.
Operating pressure range:
Min. 0.2 Bar - Max. 5.0 Bar
Maximum recommended imbalance
between hot and cold supply should
not exceed a ratio of 5:1.
If the fitting is installed at low
pressure (tank fed), then the
minimum distance from the outlet
to the underside of the cold tank
should be at least 2 metres to ensure
adequate performance.
Note: Nominally equal (balanced)
inlet supply pressures are
recommended for optimum
performance with mixer taps.
Maximum Static Pressure: 10 Bar
TMV3 Designation:
HP-WE & LP-WE
Maximum Outlet Temperature:
Factory pre-set to 41°C
The temperature can be reset to suit
site conditions. If the temperature is
re-set to suit dierent site conditions
the mixer will work adequately
however the TMV3 scheme may not
apply.
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. BS 8558 recommends
hot water should be stored and
distributed at a temperature of
no less that 60°C which will help
minimise the build-up of lime scale in
hard water areas.
Note: The inlet hot water
temperature must be at least
10°C above the required blend
temperature (eg. mixer temperature
41°C: minimum hot supply 51°C).
Flow Regulators
This product is supplied fitted with
a yellow 5 l/p/m (Hot) and a Olive
2 l/p/m (Cold) flow regulator which
should remain fitted for both high
and low pressure systems.
If the flow regulators are replaced
they must be fitted as below;
Yellow 5 l/p/m - Hot outlet
Olive 2 l/p/m - Cold outlet
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Specification
4

On/O and Temperature Control
Turn the lever anti-clockwise to turn
on the flow of water.
The water temperature will increase
the further the lever is turned.
To decrease the temperature of water
turn the lever back clockwise.
Thermal Disinfection Flushing
In order to control the build up
of bacteria and to assist against
legionella, this TMV has a built in
cleansing feature that allows the
mixed water passages to be flushed
with hot water without the need to
disassemble the mixer valve or reset
the mixed water temperature.
Easy Clean Filters
This TMV has easy clean filters which
once removed isolate the water
supply to the mixer body.
TMV3 Approved
This TMV has been tested to the
TMV3 scheme for use in Healthcare
and Commercial situations and
performs to the requirements of NHS
Specification D08.
Removable Spout
The mixer tap has a removable spout
to assist with your infection control
regime.
Cool Touch Body
The mixer body and hot inlet will only
ever reach the mixer water outlet
temperature to prevent scalding.
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Product Benefits

Important: If you install this mixer
tap 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 2 metres .
Note: Pumped system (with Essex
flange) If you install this mixer 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 Pipework
Important: Before connecting
the mixer tap the supply
pipework must be flushed to clear
debris before connecting the
mixer tap. Debris will reduce the
performance and life of the mixer.
This mixer tap 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 mixer tap 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
2m min.
2m
min.
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Installation Requirements
6

Unvented SystemInstantaneous Water Heater
Pumped System
cold mains supply
cold mains supply
Pumped System (with Essex flange)
cold mains
supply
cold mains
supply
2m min.
Key:
2m min.
50mm
If less
than
1m see
note.
Isolating
Valve
Reducing
Valve Mixer
Tap
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
8

Outlet
Flow Straightener
This mixer tap is supplied with a
choice of aerator or open outlet
flow straighteners.
Both flow straighteners are supplied
loose in the box, allowing the
installation to be made in line with
dierent site conditions and user
preference.
To Fit the Flow Straightener
Insert the chosen flow straightener
into the casing, ensuring the sealing
washer is placed on top of the flow
straightener. Using a suitable span-
ner tighten the casing into the spout
outlet.
Adjustable
Spanner
Open
outlet
Outlet
Sealing
Washer
Casing
Aerator
Sealing
Washer
Casing
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Prior to Installation

1. Prepare Water Supply Pipes
Terminate suitable pipework inside
the wall cavity / stud partition,
ensuring the centres of the hot and
cold water supply pipes are 150-
200mm apart.
Important: Before 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 electrical
detector.
If power tools are used do not forget
to:
• Wear eye protection
• Unplug equipment after use
2. Fit Mixer Tap
Position the mixer tap into the holes
in the wall surface. Tighten the
backnuts fully using a suitable
spanner.
3. Connect Pipework
Push the nuts and olives onto the
pipework. Push the pipework into the
connections ensuring the olives are
against the connections and tighten
the compression nuts to create a
water tight seal.
4. Tighten Mixer Connections
Using a suitable hexagonal key
tighten the top and bottom grub
screws on to the connections.
Note: The top and bottom grub
screws must be tightened equally.
You can now refer to the TMV
Manual to Commission the valve.
Important: Water supplies to the
mixer must be with hot on the left
and cold on the right when viewed
from the front.
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Installation - Wall Mounted
10

1. Prepare Water Supply Pipes
Terminate suitable pipework under
the sink / work surface ensuring the
centres of the hot and cold water
supply pipes are 150-200mm apart.
2. Fit Mixer Tap
Position the mixer tap into the holes
in the sink / work surface.
Tighten the backnuts fully (a suitable
spanner may be required to fully
tighten the backnuts).
3. Connect Pipework
Push the nuts and olives onto the
pipework. Push the pipework into the
connections ensuring the olives are
against the connections and tighten
the compression nuts to create a
water tight seal.
4. Tighten Mixer Connections
Using a suitable hexagonal key
tighten the front and back grub
screws on to the connections.
Note: The front and back grub
screws must be tightened equally.
You can now refer to the TMV
Manual to Commission the valve.
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Installation - Deck Mounted

On / O and Temperature Control
Turn the lever anti - clockwise to
turn on the flow of water.
The water temperature will
increase the further the lever is
turned.
To decrease the temperature
of water turn the lever back
clockwise.
General Cleaning
Bristan products are made from premium materials,
with hand polishing and electroplated finishes.
Your waste should be regularly cleaned with warm water, a mild
pH-neutral liquid soap, and polished with a soft cloth. Any residues from
soap, toothpaste, shampoos and shower gels can cause blemishes if not
rinsed o straight after use.
Household bleaches and cleaners contain harsh chemicals and may damage
the surface finish. Avoid using abrasive cloths, scouring pads, scrub sponges,
steel wool or anything similar.
Some surfaces such as nickel and pewter may be aected by
the dye found in some cloths, so it is also important to avoid
hanging cloths on surfaces.
Cold
On
Off
Hot
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Operation
12

Cleaning/Replacing the Spout
To assist with your infection control
regime, this mixer is fitted with a
removable spout which should be
periodically removed and cleaned in
line with your site risk assessments.
Replacement spouts are available
if required in order to minimise
down-time for the mixer during this
process.
We recommend that the valve should
be thermally disinfected using the
integral flushing process following
any cleaning or replacement of
spouts. This will further assist in the
infection control process.
Grub
Screw
Spout
Spout
Connection
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Maintenance

Cartridge Maintenance
We advise that the TMV is regularly
serviced in hard water areas to
maintain the flow of water.
Isolate both hot and cold water
supplies to the mixer tap
Pull both shrouds away from the wall
surface to expose the filters. Isolate
both water supplies to the mixer by
unscrewing the filters fully, using a
10mm hexagonal key until there is
resistance. Stop using the key at this
point and use fingers to “wiggle” the
filter out.
NOTE: Turning the hexagonal key
too far may result in seizing of the
filters.
1. Remove the control handle lever.
remove the cap and undo the screw
and remove the lever.
2. Unscrew the cartridge nut anti-
clockwise using a 30mm socket and
remove the cartridge from the TMV
body.
3. Place the cartridge in a suitable
solution until the cartridge is fully
de-scaled. Rinse thoroughly with
clean water to remove any debris.
4. Grease the seals with a
WRAS approved silicon grease
and carefully refit the cartridge.
5. Replace the lever handle, tighten
the grub screw and push-fit the cap
into position.
Shroud
Cartridge
Piston &
Thermostat
Filter
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Maintenance
14

Non Return Valve
Maintenance
1. Isolate Water Supplies
Pull both shrouds away from the wall
surface to expose the filters. Isolate
both water supplies to the mixer by
unscrewing the filters fully, using a
10mm hexagonal key until they do
not turn any further.
2. Remove Mixer Valve
Unscrew both grub screws on both
connections and remove the mixer
tap from the connections.
3. Remove Internal Tube
Using long nose pliers pull the
internal tube from the inlets.
4. Replace Internal Tube
Replace the internal tube using a new
spare part supplied from Bristan.
Note: Internal tube with yellow flow
regulator must be fitted to the hot
inlet.
The internal tube with the Olive flow
regulator must be fitted to the cold
inlet.
Push the internal tube into the inlet
ensuring it is pushed in firmly.
5. Replace Mixer Tap
Push the mixer tap back onto the
connections and tighten the grub
screws.
Note: The grub screws must be
tightened equally.
Filter
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Maintenance

Adjusting the Temperature
The mixer tap has been factory set
with equal (balanced) hot and cold
water supply pressures with the hot
water supply at 65˚C.
If your operating conditions are
dierent from those above, the outlet
water temperature may dier from
the factory setting.
If required the mixer tap can be
re-calibrated to suit your own
temperature requirements.
Turn the temperature control anti-
clockwise (hotter) fully until it stops
and check the temperature of the
water with a thermometer.
If the temperature is not correct,
re-calibrate the mixer tap:
1. Turn the flow of water on.
2. Remove the temperature control
lever. Remove the cap, undo the grub
screw and carefully remove the lever
handle.
3. Insert a 2.5mm hexagonal key
into the temperature control screw,
located at the centre of the cartridge
spindle.
Turn clockwise to decrease the
temperature and anti-clockwise to
increase the temperature.
Check the temperature and adjust
until you achieve the required
temperature.
4. Replace the handle ensuring it is in
the same position as when removed.
5. To finish, tighten the grub screw
and push-fit the cover cap into
position.
Hotter
Cooler
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Maintenance
16

Thermal Disinfection Flushing
In order to kill o any build up of
bacteria and to assist against legionella,
this TMV has a built in cleansing feature
that allows the mixed water passages
to be flushed with hot water without
the need to disassemble the mixer valve
or reset the mixed water temperature.
Due to dierent site conditions we
recommend the periodicity of thermal
disininfection flushing should be
determined by current best practice.
To perform a hot water thermal
disinfection flush of the TMV, the
following should be carried out by a
competent person.
1. Ensure the flow handle is in the ‘O’
position with no water running from the
TMV.
2. Using a 10mm hexagonal key remove
the cold filter, turning anti-clockwise
until it stops completely.
3. Using a 2.5mm hexagonal key open
the hot water bypass flushing screw,
turning anti-clockwise until it stops
completely.
4. Turn the flow of water on by turning
the flow handle to the ‘On’ position.
5. Hot water will flood the mixer tap
and exit the outlet. This is flushing
the mixer tap to remove any build up
of bacteria. This flushing should be
conducted inline with current best
practice.
6. Turn the flow of water o by turning
the flow handle to the ‘O’ position.
7. Using a 2.5mm hexagonal key
close the hot water bypass flushing
screw, turning clockwise until it stops
completely.
8. Using a 10mm hexagonal key refit
the filter / open the cold water isolator
screw, turning clockwise until it stops
completely.
Run the valve and allow the mixed
water to stabilise before use.
The thermal disinfection flushing is now
complete and the TMV is now ready for
normal use.
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Maintenance

Symptom Cause Remedy
No flow or low
flow rate and
/ or varying
temperatures.
Partially closed stop or
service valve in water
supply pipework to the
mixer tap.
Open stop or service valve.
Instantaneous water heater
cycles on and o as the
flow rate or pressure is too
low.
Increase water flow rate or
pressure through system.
Contact the boiler
manufacturer.
Head of water is below the
minimum distance required.
Raise the cistern or fit a
booster pump.
Inlet filter is partially
blocked.
Clean or replace, flush
through pipework before
refitting.
Hot or cold water being
drawn o elsewhere
causing pressure changes
or instantaneous boiler
temperature changes.
Do not use other water
outlets when using the mixer.
Make sure the maintained
inlet pressures are
nominally balanced and
sucient.
Refer to the Specification
section for the correct
pressures.
Airlock or partial blockage
of the pipework.
Flush through pipework to
ensure removal of debris and
any airlocks.
No hot or cold water
reaching the mixer tap.
Check hot and cold feeds
(the valve will shut down if
either the hot or cold supply
fails).
Maximum
water
temperature
too hot or
cold.
Maximum water
temperature set incorrectly.
Refer to the Maintenance
sections and your TMV
Manual to reset maximum
water temperature.
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Troubleshooting
18

Symptom Cause Remedy
Outlet water
temperature
too hot / cold.
Inlet filter is partially
blocked.
Check insert filters for any
blockages and clean as
necessary.
Installation conditions
outside operating
parameters.
Refer to the Specification
and Installation Requirements
sections for more details.
Refer to the Maintenance and
your TMV Manual to service
the cartridge and adjust the
outlet temperature.
Water
temperature
too cold.
Hot water temperature is
less than 10˚C above the
required blend temperature.
Adjust hot water temperature
or wait for water to reheat if
stored system is used.
Instantaneous water heater
not igniting because water
flow rate is too low.
Increase water flow rate
through the system.
Refer to the Maintenance
section to clean the cartridge.
Contact the boiler
manufacturer.
Instantaneous water heater
not igniting because water
pressure is too low.
Increase water pressure
through system.
Contact the boiler
manufacturer.
Only hot or
cold water
from mixer
valve outlet.
Inlet water supplies are
reversed (hot to cold
supply).
Check the connections are
the correct way round. Hot
on the left and cold on the
right when viewed from the
front. Rework pipework as
necessary.
Inlet filter is partially
blocked.
Clean or replace, flush
through pipework before
refitting.
Need help? Give us a call on 0330 026 6273 and speak to one of our trained advisors. 19
Troubleshooting

At Bristan, we want to make things as easy as possible for our customers. That’s why we oer solid
guarantees on all our products, eective from the date of purchase, to give you peace of mind.
To start your free guarantee simply scan the QR code and register your product.
Alternatively visit www.bristan.com/register.
For any other queries, please call our Customer Service on 0330 026 6273
where our expert team of advisors will be able to oer you any help and advice.
For full guarantee terms and conditions visit www.bristan.com/service-centre/guarantees.
Bristan Group Ltd.
UK: Bristan Group, B78 1SG.
EU: Masco Europe S.à.r.l.
14 Rue Strachen
6933 Mensdorf
Luxembourg
Customer Service: [phone]
Web: www.bristan.com
Email: [e-mail]
A Masco Company
Issue: D2
Part Number: FI H64 2