Bristan H64WMT2 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
Single Sequential D08 TMV3
Thermostatic Mixer Taps
Models covered: H64WMT2 & H64DMT2

2
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 Benets.........................................................................................5
Specications...............................................................................................6
Dimensions..................................................................................................7
Installation Requirements.........................................................................8-11
System Requirements..........................................................................8-9
WRAS IRN’s .........................................................................................10
TMV3 .....................................................................................................11
Prior to Installation....................................................................................12
Installation....................................................................................................13-14
Wall Mount............................................................................................13
Deck Mount...........................................................................................14
Operating the Mixer Tap...........................................................................15
Commissioning ...........................................................................................16
In-Service Testing .......................................................................................17-18
Maintenance ................................................................................................19-23
Spout Cleaning / Removal .................................................................19
Cartridge Maintenance ......................................................................20
Non-Return Valve Maintenance .......................................................21
Adjusting the Temperature ................................................................22
Thermal Disinfection Flushing ..........................................................23
Troubleshooting..........................................................................................24-25
Guarantee....................................................................................................26-27
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

3
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 mixer tap safely you must employ the
services of an experienced qualied plumber.
• These ttings need to be installed in accordance with, and meet the requirements of the
Water Supply (Water Fittings) Regulations 1999 and Scottish Byelaws 2004.
• Warning: Do not operate the mixer if you suspect it is frozen. Do not site the mixer
valve where it might be subjected to freezing conditions.
• Remove all packaging and check the contents for damage before starting installation.
• Before starting any installation please consider the following: 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
• Fitting isolating valves to the inlet feeds is required for ease of maintenance.
• Warning: Before installing the new mixer valve it is essential that you thoroughly ush
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
mixer tap.
• This mixer valve must not be modied in any way as this will invalidate the guarantee.
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

4
General Information
Operating pressure range: Minimum 0.2 bar, Maximum 5.0 bar.
Maximum static pressure: 10.0 bar.
This product has been tested to the TMV3 scheme for use in Healthcare and Commercial
situations and performs to the requirements of NHS Specication D08. It also satises the
requirements of the water supply (water ttings) regulations 1999 and current bylaws.
BS 8558 recommends hot water should be stored and distributed at a temperature of not less
that 60°C which will help minimise the build-up of lime scale in hard water areas.
If the tting 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.
This mixer tap should be installed in compliance with the Water Regulations.
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,
Hornchurch,
Essex, RM12 6NB
Tel:[phone]
Recommended Usage
Domestic Heavy
Commercial
Light
Commercial Health Care
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

5
Product Benets
On / Off and Temperature Control
Turn the lever anti - clockwise to turn on the
ow 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 ushed 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 lters 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 Specication 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.
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

6
Specications
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Specications
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.
Maximum Static Pressure: 10 Bar
Maximum outlet temp: Factory pre-set to 41°C
(can be re-set to suit site conditions). If the temperature is re-set to suit different site
conditions the mixer will work adequately however the TMV3 scheme will 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)
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 tted with a yellow 5 l/p/m (Hot) and a Olive 2 l/p/m (Cold) ow
regulator which should remain tted for both high and low pressure systems.
If the ow regulators are replaced they must be tted as below;
Yellow 5 l/p/m - Hot outlet
Olive 2 l/p/m - Cold outlet

7
Dimensions (mm’s)
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H64 WMT 2
150-200 238 72
130
Ø65
150-200
245
65
114
183
H64 DMT 2
72

8
Installation Requirements
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 (differential
pressure - see Specication 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 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 ange)
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 ange is used as shown.
Flushing Pipe-work
Important: Before connecting the mixer
tap (see ‘Installation’ on pages 13-14),
the supply pipe-work must be ushed to
clear debris before connecting the mixer tap.
Debris will reduce the performance and life
of the mixer.
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2m min.
2m
min.

9
Installation Requirements
Unvented SystemInstantaneous Water Heater
Pumped System
cold mains supply
cold mains supply
cold mains supply
Pumped System (with Essex ange)
cold mains supply
2m min.
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Key:
2m min.
50mm
If less
than 1m
see note.
Isolating
Valve
Reducing
Valve
Mixer
Tap
Pump Essex
Flange

10
Installation Requirements
This tting 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 tting
shall be installed so that its outlet discharges
above the spill-over level of any xed
appliance as indicated below:-
For backow protection in domestic or
installations up to, and including, Fluid
Category 3.
If the tting 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 effective
backow 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 ttings (other than a
draining tap) at a lower level.
For backow 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 tting, which ever is the greater. If the
tting cannot be installed as indicated it
shall be installed with a backow prevention
arrangement suitable for the Fluid Category.
Size of tap or
combination tting
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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