Triton Thames User manual

Installation and

operating instructions

Installers please note these InstructIons are to be left wIth the user

2180766D - July 2012

THAMES

concentric exposed

thermostatic mini mixer shower

Concentric exposed thermostatic mixer shower

CONTENTS Page

MAIN COMPONENTS.................................................................... 1

INTRODUCTION............................................................................ 2

SITE REQUIREMENTS ..................................................................... 2

SAFETY WARNINGS ....................................................................... 2

PLUMBING REQUIREMENTS .......................................................... 3

WATER SYSTEM REQUIREMENTS.................................................... 3

TYPICAL DOMESTIC INSTALLATIONS...........................................4 - 6

INSTALLATION............................................................................... 7

FITTING THE MIXER....................................................................... 8

ANTI-SCALD PROTECTION ............................................................ 9

LEAK TESTING ............................................................................... 9

COMMISSIONING......................................................................... 9

ADJUSTING THE MAXIMUM TEMPERATURE SETTING ................... 10

OPERATING THE SHOWER ............................................................ 11

APPROVALS .................................................................................. 12

FLOW CHART ............................................................................... 12

DIMENSIONS ............................................................................... 13

SPARE PARTS................................................................................. 14

MAINTENANCE ............................................................................ 15

Cleaning the filters........................................................................ 15

FAULT FINDING.........................................................................16 - 17

Guarantee, service policy, etc...................................................rear cover

To check the product suitability for commercial and multiple installations, please contact Triton’s

speciﬁcation advisory service before installation.

Telephone:

Facsimile:

E mail:

0844 980 0730

0844 980 0744

[email protected]

Concentric exposed thermostatic mixer shower

Ref. Description

1. Mixer shower body

2. Blanking plug

3. Outlet adapter

4. Flow regulator

Main components

MAIN COMPONENTS

5. Mounting plate

6. Wall trim X2

7. Inlet nut and Olive X2

- 110mm elbow adaptors X2 - not shown

All dimensions listed in this fitting book regarding the product and installation are approximate.

*All kits are for illustration purposes only and are not supplied unless otherwise stated.

Fig.1

Concentric exposed thermostatic mixer shower

Replacement parts can be ordered from Triton Customer

Service. See ‘spare parts’ for details and part numbers.

INTRODUCTION

This book contains all the necessary ﬁtting and

operating instructions for your Triton mixer

shower. Please read them carefully and read

through the whole of this book before beginning

your installation.

The shower installation must be carried out by

a suitably competent person and in sequence of

this instruction book.

Care taken during the installation will give a long

and trouble free life from your mixer shower.

SITE REQUIREMENTS

The installation must be in accordance with

water supply (water ﬁttings) regulation 1999

and/or local Bylaws.

Water pressure requirements

Running water pressure:

Low presure - 0.1 bar min.

1.0 bar max.

High pressure - 0.5 bar min.

5.0 bar max.

Maximum static water pressure:

Low & High pressure - 10 bar

This mixer shower is designed for use with

traditional low pressure ‘gravity’ water systems,

using a cold water cistern and hot water cylinder

as well as for the higher pressure systems found

in the UK up to a maximum of 5 bar running

pressure.

For effective operation of the internal seals, the

maximum static pressure must not be exceeded.

Pressure reducing valve

On sites where the running pressure is above 5

bar, the use of a suitably sized pressure reducing

valve ﬁtted in the cold mains supply pipe work

can provide nominally equal pressures at the

mixer shower.

Water minimum ﬂow rate

For best performance within the speciﬁed running

pressure range a minimum ﬂow of 8 litres per

minute should be available to both inlets.

Water temperature requirements

Maximum hot water temperature: = 80°C

Recommended maximum: = 65°C

Minimum hot water temperature: = 55°C

Maximum cold water temperature: = 25°C

NOTE: Valves operating outside these conditions

cannot be guaranteed by the Scheme to operate

as Type 2 valves.

The mixer shower MUST NOT be subjected to

water temperatures above 80°C.

BS 6700 recommends that 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 effects of

scale in hard water areas.

Water temperature adjustment and

thermal safety

The mixed water temperature can be adjusted

from cold through to a top limit which must

be preset during installation with full anti-scald

protection throughout the range (35°C to 40°C)

providing the hot water temperature at the inlet

remains 10°C above the outlet temperature.

Should there be a loss of ﬂow to either incoming

supply then- water from the shower will stop or

be reduced until both supplies are restored.

SAFETY WARNINGS

a. DO NOT choose a position where the shower

could become frozen.

b. DO NOT connect this mixer shower to any

form of tap or ﬁtting not recommended by

the manufacturer.

c. DO NOT allow the inlet pressure or ﬂow

rates to operate outside the guidelines laid

out in ‘site requirements’.

d. DO NOT connect the mixer shower to a

gravity hot supply and a mains cold supply

(or vice versa).

Concentric exposed thermostatic mixer shower

PLUMBING REQUIREMENTS

DO NOT use jointing compounds on any pipe

ﬁttings for the installation,

DO NOT solder ﬁttings near the mixer unit

as heat can transfer along the pipework and

damage the mixer valve.

IMPORTANT:

• ThelayoutandsizingofpipeworkMUST

be such that nominally equal inlet supply

pressures are achieved and the effects of

other draw-offs are minimised.

• Thepipe-workshouldbeinstalledsuch

that other taps and appliances being

operated elsewhere on the premises do not

signiﬁcantly affect the ﬂow

• Whenconnectingpipe-workavoidusing

tight 90° elbows; swept or formed bends will

give the best performance.

• Thehotwaterpipeentrymustbemadeto

the left-hand side inlet, marked HOT, ‘H’ or

with a red/orange label.

• Suitableisolatingvalves(complyingwith

Water Regulations and Bylaws) must be ﬁtted

on the hot and cold water supplies to the

shower as an independent means of isolating

the water supplies should maintenance or

servicing be necessary.

• Itispreferabletoushthepipe-worktoclear

the system of debris and check for leaks

before connecting to the mixer.

• Themixerinletscontainremovablelters

that may become blocked if debris is not

ﬂushed through before ﬁtting.

(Commercial applications)

• Tritonrecommendsforallcommercial

applications that, easily accessible, in-line

ﬁlters are used to aid maintenance.

Hard water areas

a. If it is intended to operate the shower

in areas of hard water (above 200-ppm

temporary hardness), a scale inhibitor may

have to be ﬁtted. For advice on the Triton

scale inhibitor, please contact Customer

Service.

b. For best performance the showerhead MUST be

regularly cleaned to remove scale and debris.

WATER SYSTEM REQUIREMENTS

This mixer shower is suitable for: -

• Gravitywatersystems

• Pumpedgravitysystems.

• Fullymodulatingtypecombinationboilers

• Multi-pointhotwaterheaters.

• Thermalstorage,

• Unventedsystems

When installing this mixer with a Combination or

multi-point boiler, it may be necessary to install

ﬂow regulation.

Check that the appliance is capable of delivering

hot water at a minimum switch-on ﬂow rate

of 3 litres per minute. At ﬂow rates between 3

and 8 litres per minute, the appliance must be

capable of raising the water temperature to 52°C

(minimum).

Water temperature at the inlet of the mixer valve

must remain relatively constant when ﬂow rate

adjustments are made (refer to the appliance-

operating manual to conﬁrm compatibility with

this mixer shower).

Where thermal store systems and instantaneous

gas water heaters are used, if excessive draw-

off take place the appliance may not be able to

maintain an adequate output temperature. This

could result in the shower temperature becoming

noticeably cooler.

Flow regulators can be ﬁtted with high-pressure

water systems to reduce ﬂow rate and assist

economy.

The hot supply temperature MUST remain a

minimum of 10°C hotter than the required blend

temperature for optimum performance.

Concentric exposed thermostatic mixer shower

*(kits are for illustration purposes only)

TYPICAL DOMESTIC INSTALLATIONS

Domestic gravity fed systems (ﬁg.2)

The shower control MUST be fed from a cold

water cistern and hot water cylinder providing

nominally equal pressures. There must be a

minimum of one metre head of water. The

minimum head distance is measured from the

base of the cold water cistern to top of the

showerhead.

If valves are gravity, fed then supply pressure

should be veriﬁed to ensure conditions of use

are appropriate for the valve.

Pumped gravity fed systems (ﬁg.3)

The shower control MUST be fed from a cold

water cistern and hot water cylinder providing

nominally equal pressures.

The mixer unit may be used with a gravity fed

system with a pump to boost pressures as shown;

please refer to the pump installation guide to

establish the minimum head requirements for

automatic operation of the pump.

Hot water

cylinder

Cold supply

Hot supply

Alternative supply

(must be below

vent pipe tee)

Cold

water

mains

supply

Drain

valve

Gate

valve

Stop valve

Cold water

cistern

Minimum head

Other

draw-offs

Draw-off must point down

to avoid airlock issues

Service

valves

Mixer

Kit

Hot water

cylinder

Mixer

Cold supply

Hot

supply

Alternative supply

(must be below

vent pipe tee)

Cold

water

mains

supply

Drain

valve

Gate

valve

Stop valve

Cold water

cistern

Minimum head

Other

draw-offs

Draw-off must point

down to avoid airlock

issues

Ring main

Isolating switch or

pull cord switch

(both fused at 3A)

Service

valve Service

valve

Pump

Mixer

*Fig.3 *(diagrammatic view – not to scale)

*Fig.2 *(diagrammatic view – not to scale)

Mixer

Concentric exposed thermostatic mixer shower

Service

valves

Balanced cold mains supply

Cold mains supply

Mixer

Expansion

vessel

Pressure

reducing valves

Stop tap

Unvented

hot water

storage unit

Safety devices

not shown

Kit

CH flow

Cold

mains

supply

Hot water

CH return

Service

valves

Mixer

Stop

tap

Expansion

vessel

Pressure

reducing valve

Combination

boiler

Kit

Mixer

*(kits are for illustration purposes only)

Instantaneous gas-heated systems, e.g.

combination boilers (ﬁg.4)

The shower control MUST be installed with a

multi-point gas water heater or combination

boiler of a fully modulating design (i.e.

to maintain relatively stable hot water

temperatures).

A drop tight pressure reducing valve MUST

be ﬁtted if the supply pressures exceed 5 bar

running.

An expansion vessel MAY be ﬁtted, and regularly

maintained, to prevent the shower mixer

being damaged by excess pressures. This may

already be installed within the boiler (check with

manufacturer) and is in addition to the normally

larger central heating expansion vessel.

Unvented mains pressure systems (ﬁg.5)

The shower control can be installed with an

unvented, stored hot water cylinder.

For systems with no cold water take off after the

appliance reducing valve, it will be necessary to

ﬁt an additional drop tight pressure-reducing

valve when the mains pressure is over 5 bar. The

drop tight pressure reducing valve must be set at

the same value as the unvented package pressure

reducing valve.

Note: An additional expansion vessel may be

required if a second pressure-reducing valve is

installed. This does not apply to packages with a

cold take off after the pressure-reducing valve to

the cylinder.

*Fig.4 *(diagrammatic view – not to scale)

*Fig.5 *(diagrammatic view – not to scale)

Concentric exposed thermostatic mixer shower

Blender

valve

Flow

Cold mains supply

Hot

water

Stop tap

Expansion

vessel

Pressure

reducing valve Return

Service

valves

Mixer

Boiler

*(kits are for illustration purposes only)

Mains pressurised thermal store systems (ﬁg.6)

Packages of this type, ﬁtted with a tempering

valve (blender valve) can be used. A drop tight

pressure reducing valve MUST be ﬁtted if the

supply pressures exceed 5 bar running.

An expansion vessel MUST be ﬁtted, and

regularly maintained, to ensure, the unit, is

not damaged by excess pressures. This may

already be installed externally or internally within

the thermal store (check with thermal store

manufacturer).

*Fig.6 *(diagrammatic view – not to scale)

Concentric exposed thermostatic mixer shower

Height of

showerhead

and shower

to suit user’s

requirement.

*(kits are for illustration purposes only)

Approx

30 - 35mm

Approx

150mm

110mm

INSTALLATION

Preparing the mixer valve

Check the contents to make sure all parts are

present.

Before starting the mixer installation, make

sure all the openings on the valve are carefully

covered to stop ingress of any debris, etc. while

routing the supply pipework.

The shower valve is suitable for exposed installation

onto solid wall, a stud partition wall, dry lined wall

or ﬁxing to a laminate cubicle or panel.

Siting of the shower and accessories

Refer to (ﬁg.7) for correct siting of the shower.

The mixer valve should be positioned, as

detailed, with all controls within comfortable

reached of the user.

The accessories (showerhead, riser rail) can be

positioned above or to either side of the shower,

refer to (ﬁg.7).

The valve must be installed in a position that

allows for easy access for future maintenance

and commissioning.

Supply pipe work

Complete the pipework to the shower area

having decided on the position of the shower

and direction of pipe entry (for example rising,

falling or rear entry)

The hot and cold water pipes should not

be permanently attached to the wall within

one metre of the valve, before installation is

complete, to allow for ﬁnal adjustment of the

valve position.

Rear entry supplies

Using a spirit level, mark the route of incoming

hot and cold water supply pipes at a distance

of either 150mm, or 110mm (approximately)

between centres (depending on the adaptors

ﬁtted (ﬁg.8).

*Fig.7 *(diagrammatic view – not to scale)

Fig.8

Please note: Mixer is supplied with 150mm and

110mm adaptors.

Concentric exposed thermostatic mixer shower

O ring seal

Elbow

FITTING THE MIXER

Mark the position of the four locating screws

for the mounting plate, although if installing to

a solid brick wall using two diagonal holes will

usually be enough.

Drill and plug the wall.

(An appropriate drill bit should be used. If the

wall is brick, plasterboard or a soft building block,

appropriate wall plugs and screws should be ﬁtted).

Fit the mounting plate onto the wall (ﬁg.9).

The inlet elbows allow for either rising, falling or

rear entry hot and cold water supplies. The elbows

have ‘O’ ring seals (ﬁg.10) to the body and do

not require PTFE tape or other means of sealing

- (see page 15 Fig.A for elbow disassembly and ﬁlter

cleaning).

See (ﬁg.11) for how to install the 150mm or

110mm adaptors and elbows. A suitable tool

should be used to tighten the adaptors into the

body - (a 20 pence coin for example).

Note: Do not over tighten the adaptors

and care should be taken not to create

sharp edges on the tightening surfaces.

IMPORTANT:

Make sure that all the supply pipework has

been ﬂushed through before ﬁtting the mixer.

Fit the trim onto the inlet water pipes followed

by the nut and olive (ﬁg.12).

Connect the hot water supply to the inlet marked

HOT, ‘H’ or red/orange label and connect the

cold water supply to the inlet marked COLD, ‘C’

or blue label (ﬁg.12).

Tighten all compression ﬁttings.

Tighten all the grub screws to secure the mixer to

mounting plate.

Flow regulation

A ﬂow regulator is supplied for use with high-

pressure water systems and may be ﬁtted with

any of the systems listed to reduce ﬂow rate and

assist economy.

Fig.11

Fig.10

Fig.9

150mm adaptor

110mm adaptor

Grub screw

Elbow

Grub screw

Elbow

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