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

Need help? Give us a call on 0330 026 6273 and speak to one of our trained advisors.

Contents

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: 01708 472791

Need help? Give us a call on 0330 026 6273 and speak to one of our trained advisors. 3

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

Need help? Give us a call on 0330 026 6273 and speak to one of our trained advisors.

Speciﬁcation

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.

Need help? Give us a call on 0330 026 6273 and speak to one of our trained advisors. 5

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.

min.

Need help? Give us a call on 0330 026 6273 and speak to one of our trained advisors.

Installation Requirements

Unvented SystemInstantaneous Water Heater

Pumped System

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

Need help? Give us a call on 0330 026 6273 and speak to one of our trained advisors. 7

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

Need help? Give us a call on 0330 026 6273 and speak to one of our trained advisors.

Installation Requirements

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

Need help? Give us a call on 0330 026 6273 and speak to one of our trained advisors. 9

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.

Need help? Give us a call on 0330 026 6273 and speak to one of our trained advisors.

Installation - Wall Mounted

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