Bristan DUL3 THBSM C Bedienungsanleitung

Please keep this booklet for future

reference.

Installer, when you have read these

instructions please ensure you leave them

with the user.

Installation Instructions

Thermostatic Bath

Shower Mixer

Models covered:

DUL3 THBSM C, AS2 THBSM C

Contents

Thank you for choosing Bristan, the UK’s leading taps and showers expert.

We have designed this product with your enjoyment in mind. 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 contact us.

Important Safety Information................................................... 3

General Information ................................................................. 4

Speciﬁcations ........................................................................... 5

Dimensions............................................................................... 6

Installation Requirements ....................................................... 7

Prior to Installation .................................................................. 8

Installation................................................................................ 9

Temperature Setting ................................................................ 10

Commissioning......................................................................... 11

Maintenance ............................................................................. 12-13

Troubleshooting........................................................................ 14-15

Notes......................................................................................... 16-17

Guarantee ................................................................................. 18-19

Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

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.

•This product needs to be installed in accordance with, and meet the requirements of

the Water Supply (Water Fittings) Regulations 1999 and Scottish Byelaws 2004.

•Remove all packaging and check the ﬁtting for damage before starting installation.

•Warning: 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

•Important: Remember to turn off the mains water supply before connecting to any

existing pipe work. Fitting isolating valves to the inlet feeds is recommended for ease

of maintenance.

•Warning: Before installing this product 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 tap.

• This product must not be modiﬁed 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.

General Information

This product has been tested to the Water Regulations Advisory Scheme (WRAS) and

satisﬁes the requirements of the Water Supply (Water Fittings) Regulations 1999 and

current bylaws. For full Installation Requirements & Notes (IRN) please visit

www.wras.co.uk/directory.

This product has been designed and tested to comply with BS EN1287:1999 (LP)

and BS EN 1111:1999 (HP) Thermostatic Mixing Valves Standards.

BS 8558 recommends hot water should be stored and distributed at a temperature of

not less than 60ºC which will help minimise the build-up of lime scale in hard water

areas.

If installing this product on a low pressure (tank fed) system please see

speciﬁcationstable on page 5 to determine the minimum distance required from

undeside of the cold water tank to the outlet.

These Thermostatic Mixing Valves should be installed in compliance with the Water

Regulations. Where the supplies are unbalanced, i.e. Hot water from cylinder tank / cold

from the mains, approved check valves must be ﬁtted in the supply pipes.

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

RM12 6NB

Phone: 01708 472791

Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

Speciﬁcations

Product Code

Working pressure

Inlet

Minimum

distance from

cold water tank to

outlet (metres)

Min Max

DUL3 THBSM C 0.5 5.0 3/4" BSP Threaded Tail 5

AS2 THBSM C 0.5 5.0 3/4" BSP Threaded Tail 5

Maximum static pressure- 10.0 bar

Maximum outlet temperature- factory preset to 38ºC

System Requirements:

Gravity fed hot & cold (Equal pressures)

Gravity fed hot & cold (Differential pressure, maximum ratio 5:1)

Unvented systems

Instantaneous water heater (Combination boiler)

Pumped Systems

Note: When using a Pumped System, we recommend that an Essex Flange is used.

Supply Requirements:

Minimum cold water supply temperature: 5ºC

Maximum cold water supply temperature: 25ºC

Maximum hot water supply temperature: 80ºC

(a maximum hot water supply of 60-65ºC is

recommended for ablutionary purposes).

Note: The inlet hot water temperature must be at least 10ºC above the required blend

temperature (e.g. outlet temperature 43ºC: Minimum hot supply 53ºC).

Nominally equal (balanced) inlet supply pressures are recommended for optimum

performance. If pressures are unequal, then a pressure reducing valve should be

used.

Valves Operating outside of these conditions of use cannot be guaranteed as type 2 valves.

Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

Dimensions

Dimensions are approximate and in millimetres.

Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

Design Utility Lever Thermostatic Bath Shower Mixer

Assure Thermostatic Bath Shower Mixer Chrome

143

256

180

G 3/4

143

180

256

G 3/4

Installation Requirments

Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

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 1.0

Hot Supply Temperature (ºC) 55 to 65 55 to 65

Cold Supply Temperature (ºC) Equal to or less than 25 Equal to or less than 25

Note: Valves operating outside these condi-

tions 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

The BuildCert TMV scheme recommends the

following set maximum mixed water outlet

temperatures for use in all premises:

41ºC for showers;

The mixed water temperatures must never

exceed 46ºC.

The maximum mixed water temperature can

be 2ºC above the recommended maximum

set outlet temperatures.

Note: 46ºC is the maximum mixed water

temperature from the bath tap. The maxi-

mum temperature takes account of the al-

lowable 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 37.5ºC as a comfortable bathing tempera-

ture for children. In premises covered by the

Care Standards Act 2000, the maximum mixed

water outlet temperature is 43ºC.

The thermostatic mixing valve (TMV) will be in-

stalled 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.

The ﬁtting of strainers is recommended as

close as is practical to the water supply inlets

of the thermostatic mixing valve

Prior to Installation

Identify all components prior to stating installation.

1. Mixer Body x1 4. Washers x2

2. Pillar Legs x2 5. Back Nuts x2

3. Base Washers x2 6. Filter Washers x2

This mixing valve should be installed in compliance with current water regulations.

For further details contact your Local Water Authority.

This mixing valve is suitable for the following systems:

Gravity Fed Hot & Cold (Equal Pressures)

Unvented Systems

Gas Combination Boiler

Pumped System (Equal Pressures)

Note: On gravity systems the minimum distance from the underside of the water tank /

cylinder to the mixing valve must be at least 5 metres.

Before connecting the mixing valve, thoroughly ﬂush through the water supply pipes to

remove any remaining swarf, debris. Failure to do so may result in damaging the product.

Base Washer

Washer

Backnut

Pillar Legs

Mixer

Body

Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

1. Place ﬁlter washers into the pillars and

screw the pillar legs onto the mixer body.

2. Place the mixer body onto the bath

ensuring the base washers are ﬁtted to

the threaded legs of the pillars.

3. Push the washers onto the threaded

pillar legs and screw the backnuts onto

the threaded pillar legs and tighten fully

against the underside of the bath.

4. Connect the hot and cold water

supplies to the pillar legs ensuring the

hot supply on the left and the cold supply

on the right (when viewed from the front).

5. Turn on both water supplies letting the

water run at both hot and cold settings

for a few minutes to check all joints and

connections for any leaks.

Important: Access must be made

available to the water supplies and ﬁxings

for future maintenance / servicing.

To change from bath to shower mode pull

the diverter know up. To revert back to

bath ﬁll push the diverter knob back

down.

Hot supply

pipework Cold supply

pipework

Installation

Temperature Setting

Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

The temperature is factory set at 38°C,

however this may be overridden by simply

pressing the temperature override button

in when the handle reaches the stop and

continuing to turn the handle.

To reset the maximum temperature the

following should be carried out.

1. Remove the end cap.

2. Unscrew the handle screw.

3. Remove the handle.

4. Turn the valve spindle in the

required direction.

To increase the temperature

turn the spindle anti-clockwise

To decrease the temperature

turn the spindle clockwise.

5. Replace the handle, tighten

the screw and push ﬁt the

cap back into position.

Override

button

Valve spindle

Handle

Screw

Cap

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