Bristan AR2 SHXVOFF Montageanleitung

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

Artisan Thermostatic

Surface Mounted Bar

Shower Valves

Models covered: AR2 SHXVOFF,

AR2 SHXMTFF & AR2 SHXSMFF

Contents

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

Your Bristan shower valve is a thermostatic mixer incorporating a wax capsule

thermostat to ensure constant shower 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

Installation Requirements.................................................... 6-10

Flow Regulators................................................................... 9

Dimensions............................................................................... 11

Specifications ........................................................................... 12

Pack Contents ...................................................................... 13-15

AR2 SHXVOFF C................................................................... 13

AR2 SHXSMFF C .................................................................. 14

AR2 SHXMTFF C .................................................................. 15

Installation ........................................................................... 16-20

First Fix ................................................................................ 16

Second Fix............................................................................ 17

The Riser Rail ...................................................................... 18-20

Operation.............................................................................. 21

Commissioning......................................................................... 22

Maintenance ............................................................................. 23-25

Map of Hard Water Regions in the UK ................................ 25

Troubleshooting........................................................................ 26-27

Guarantee ................................................................................. 28-29

Service Policy............................................................................ 29

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 shower valve safely you must

employ the services of an experienced qualified plumber.

•These fittings 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 shower valve if you suspect it is frozen. Do not site

the shower valve where it might be subjected to freezing conditions.

•Do not crush or kink the shower hose, this could damage the hose and cause leaks.

•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 shower valve 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 shower valve.

•This shower valve must not be modified in any way as this will invalidate the

guarantee.

General Information

Operating pressure range: Minimum 0.1 bar, Maximum 5.0 bar.

Maximum static pressure: 10.0 bar.

This product has been tested to the TMV2 scheme which complies with the BS EN

1287:1999 (LP) and BS 1111:1999 (HP) thermostatic mixing valve standards and satisfies

the requirements of the water supply (water fittings) regulations 1999 and current

bylaws.

BS 6700 recommends the temperature of stored water should never exceed 65°C.

A stored water temperature of 60°C is considered sufficient to meet all normal

requirements and will minimise the build up of lime scale in hard water areas (see

Map of Hard Water Regions in the UK on page 25).

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.

These shower valves should be installed in compliance with the Water Regulations.

For further details contact your Local Water Authority.

Product features

Recommended Usage

Domestic Heavy

Commercial

Light

Commercial Health Care

1. Water Flow Control

Water flow settings:

Off ( ), Medium (eco ) and High ( ).

Controls the amount or flow of water from

the showerhead.

When in medium (eco ) setting the

button must be pressed to increase the

water flow.

2. Temperature Control

Adjustable temperature control.

Only press the button (and turn the

control) when a water temperature over

38˚ is required.

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

(differential pressure - see Specification

section on page 12)

• 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 showerhead position

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), supply pipe-work must be flushed

to clear debris before connecting the

shower valve. Debris will reduce the

performance and life of the shower.

1m min.

min.

Installation Requirements

Unvented SystemInstantaneous Water Heater

Pumped System

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

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

The BuildCert TMV scheme recommends

the following set maximum mixed

water outlet temperatures for use in all

premises:

44˚C for bath fill but see notes below;

41˚C for showers;

41˚C for washbasins;

38˚C for bidets.

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.

Installation Requirements

Flow Regulators

This shower valve is supplied with a 7 litre

per minute flow regulator fitted in each

water inlet which must be left in place

when installed in conjunction with an

instantaneous water heater/combination

boiler.

Fitting both flow regulators and turning

the water heater/combination boiler to its

hottest setting, will ensure a sufficiently

hot water supply to the shower valve

during winter months (in the UK), when

the mains cold water supply is at its

coldest.

In the event that this shower valve is not

installed with an instantaneous water

heater/combination boiler, the flow

regulators may be removed. Please follow

the steps detailed to remove the flow

regulators.

Using a thin flat bladed screwdriver

or similar tool, carefully prise the flow

regulators out of both inlets (1& 2).

With the flow regulators removed from

the inlets, the plastic inserts (supplied)

must be fitted as shown, with the small

diameter first (3& 4).

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 aor bbelow:

a: with an approved double check valve

assembly or some other no less effective

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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