Triton T70si Installation And Operating Instructions Manual

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INSTALLERS PLEASE NOTE THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER

2180254H May 2002

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Installation and Operating Instructions

T70si

CONTENTS Page

Important safety information 1

Introduction 2

Advice to users 2

Key to main components 3

Electrical requirements 4 - 5

Water requirements 6

Siting of the shower 6 - 7

Fitting the shower to the wall 8

Plumbing connections 8 - 9

Electrical connections 10

Replacing the cover 11

Fitting the riser rail 12

Fitting the hose and sprayhead 13

Commissioning 14

Operating the shower 15 - 16

Operating functions 16

Cleaning 17

Cleaning the filter 17

Spare parts 18 - 19

Fault finding 20 - 21

Guarantee, service policy, etc. rear cover

UKAS

QUALITY

MANAGEMENT

003

T70si

1

PLEASE READ THIS IMPORTANT SAFETY INFORMATION

◆ Products manufactured by Triton are safe and without risk provided they are installed, used and
maintained in good working order in accordance with our instructions and recommendations.

◆ DO NOT operate shower if frozen, or suspected of being frozen. It must thaw out before using.

◆ DO NOT operate the unit if the sprayhead or spray hose becomes damaged.

◆ DO NOT restrict flow out of the shower by placing sprayhead in direct contact with your body.

◆ DO NOT operate the shower if water ceases to flow during use or if water has entered inside the

unit because of an incorrectly fitted cover.

◆ WARNING: If re-starting the shower immediately after stopping, be aware that a slug of hot
water will be expelled for the first few seconds.

1 GENERAL

1.1

Isolate the electrical and water supplies before

removing the cover.

1.2 Read all of these instructions and retain them
for later use.

1.3 DO NOT take risks with plumbing or electrical
equipment.

1.4 Isolate electrical and water supplies BEFORE
proceeding with the installation.

1.5 The unit must be mounted onto the finished
wall surface (on top of the tiles). DO NOT tile up to
unit after fixing to wall.

1.6 Contact Customer Service (see back page), if
any of the following occur;
a) If it is intended to operate the shower at pressures
above the maximum or below the minimum stated.

b) If the unit shows a distinct change in performance.
c) If the shower is frozen.

1.7 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, contact Triton Customer Service.

1.8 The sprayplate and cartridge must be cleaned
regularly with descalent to remove scale and debris,
otherwise restrictions to the flow on the outlet of the
unit will result in higher temperatures and could also
cause the Pressure Relief Device in unit to operate.

1.9 This product is not suitable for mounting into
steam rooms or steam cubicles.

2 PLUMBING

2.1

The plumbing installation must comply with
Water Regulations, Building Regulations or any
particular regulations as specified by Local Water
Company or Water Undertakers and should be in
accordance with BS 6700.

2.2 The supply pipe must be flushed to clear debris
before connecting to the shower unit.

2.3 DO NOT solder pipes or fittings within 300mm
of shower, as heat transfer can damage components.

2.4 DO NOT fit any form of outlet flow control as
the outlet acts as a vent for the heater can.

2.5 DO NOT use excessive force when making
connections to the flexible hose or sprayhead, finger
tightness is sufficient.

2.6 All plumbing connections MUST be completed
BEFORE making the electrical connections.

3 ELECTRICAL

3.1

The installation must comply with
BS 7671 ‘Requirements for electrical installations’ (IEE
wiring regulations) or any particular regulations as
specified by the local Electrical Supply Company.

3.2 This appliance MUST be earthed.

3.3 In accordance with ‘The Plugs and Sockets etc.

(Safety) Regulations 1994’, this appliance is intended
to be permanently connected to the fixed wiring of
the electrical mains system.

3.4 Ensure all electrical connections are tight to
prevent overheating.

3.5 Fuses do not give personal protection against
electric shock.

3.6 To enhance electrical safety a 30mA residual
current device (RCD) should be installed in all UK
electric and pumped shower circuits. This may be part
of the consumer unit or a separate unit.

3.7 Switch off immediately at isolating switch if
water ceases to flow during use.

3.8 Other electrical equipment i.e. extractor fans,
pumps must not be connected to the circuits within
the unit.

3.9 Switch off at isolating switch when not in use.
This is a safety procedure recommended with all
electrical appliances.

3.10 As with all electrical appliances it is
recommended to have the shower and installation
checked at least every two years by a competent
electrician to ensure there is no deterioration due to
age and usage.

T70si

2

ADVICE TO USERS

The following points will help you understand
how the shower operates:

A The electric heating elements operate at a
constant rate at your chosen power setting. It is
the flow rate of the water passing through the
heater unit which determines the shower
temperature at any given setting. (The slower the
flow the hotter the water becomes, and the faster
the flow the cooler the water).

B During Winter, mains water supply will be
cooler than in Summer. Therefore the
temperature of the shower will vary between
seasons on any one setting of the temperature
control, e.g. if you have chosen setting number 6
as your preferred shower temperature in the
Summer, you will have to increase that number
during Winter by adjusting the temperature
control clockwise (which in effect slows the water
flow).

C The stabiliser valve minimises variations in
shower temperature during mains water pressure
changes. If changes in shower temperature are
experienced during normal use, it will most likely
be caused by the water pressure falling near to or
below the minimum level. The drop in pressure
may be due to water being drawn off at other
points in the house whilst the shower is in use. If
pressure drops appreciably below the minimum,
the heating elements will automatically cut out.

If ever the water becomes too hot and you
cannot obtain cooler water, first check that
the sprayplate in the sprayhead has not
become blocked.

DO NOT

place items such as soap or shampoo
bottles on top of the unit. Liquid could seep
through the joint between the cover and
backplate, and possibly damage the sealing
rubber.

Replacement parts can be ordered from Customer
Service. See

‘spare parts’ for details and part

numbers.

Due to continuous improvement and updating,
specification may be altered without prior notice.

INTRODUCTION

This book contains all the necessary fitting and
operating instructions for your Triton T70si electric
shower.
Take time to read this book thoroughly and
familiarise yourself with all instructions before
commencing installation. Please keep it for future
reference.

The shower installation must be carried out by a
suitably qualified person and in the sequence of
this instruction book.

Care taken during the installation will ensure a
long, trouble-free life from your shower.

SPECIFICATIONS

Electrical

Nominal power Nominal power
rating at 240V rating at 230V

7kW – (30A MCB rating) 6.4kW – (30A MCB rating)
8kW – (40A MCB rating) 7.4kW – (40A MCB rating)
9kW – (40A MCB rating) 8.3kW – (40A MCB rating)

Water

Inlet connection – 15mm diameter.
Outlet connection – 1/2” BSP male thread.

Entry Points

Water – top, bottom, back, left or right.
Cable – top, bottom, back, left or right.

Materials

Backplate, cover, controls, sprayhead – ABS.
Sprayplate – Acetal.
Elements – Minerally insulated corrosion resistant
metal sheathing.

Dimensions

Height - 300mm
Width - 208mm
Depth - 110mm

Standards and Approvals

Splashproof rating IPX4.

Complies with the requirements of current British
and European safety standards for household and
similar electrical appliances.

Complies with requirements of the British
Electrotechnical Approvals Board (BEAB).

Meets with Compliance with European
Community Directives (CE).

T70si

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15

255
mm

58 mm

208 mm

300
mm

Fig.1

KEY TO MAIN COMPONENTS

Inside unit (fig.1)

1 Top cable/pipe entry

2 Wall screw fixings

3 Cover screw fixings

4 Thermal safety cut-out (main)

5 Power selector assembly

6 Can and element assembly

7 Pressure switch assembly

8 Stabilising valve

9 Terminal block

10 Earth connection

11 Solenoid valve

12 Water inlet

13 Outlet temperature limiter

14 Pressure relief device (PRD)

15 Shower outlet

Pack contents

Shower unit

Sprayhead

Riser rail kit and fittings

Soap dish

Flexible hose

Screw fixing kit

Instructions, guarantee, etc.

To ensure the product suitability for commercial and
multiple installations, please contact Triton’s
specification advisory service prior to installation.

Telephone: [phone]

Facsimile: [phone]

E mail: [e-mail]

NOTE: Not all wires have been depicted for

reason of clarity.

T70si

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ELECTRICAL REQUIREMENTS

WARNING

THIS APPLIANCE MUST BE EARTHED

The installation, supply cable and circuit
protection must conform with IEE wiring
regulations and be sufficient for the
amperage required.

The following notes are for guidance only:

1 The shower must only be connected to a
230-240V ac supply. If you are installing a shower
with a kilowatt rating above 9kW, it is advisable
to contact the local electricity supply company.

1.1 The electrical rating of the shower is shown
on the rating label (fig.2) within the unit.

Meter

Incoming

supply

fuse

Meter

tails

Consumer
unit

Pull cord
isolating switch

Shower

unit

Fuse or

mcb

RCD

(can be part of

consumer unit)

80A or 100A

main switch

Fig.3 schematic of installation circuit

2 Before making any sort of electrical

connection within the installation, ensure that no
terminal is live. If in any doubt, switch off the
whole installation at the consumer unit.

3 The shower must be connected to its own
independent electrical circuit. IT MUST NOT be
connected to a ring main, spur, socket outlet,
lighting circuit or cooker circuit.

3.1 The electrical supply must be adequate for
the loading of the unit and existing circuits.

4 Check your consumer unit (main fuse box)
has a main switch rating of 80A or above and that
it has a spare fuse way which will take the fuse or
mcb necessary for the shower (fig.3).

4.1 If your consumer unit has a rating below
80A or if there is no spare fuse way, then the
installation will not be straight forward and may
require a new consumer unit serving the house or
just the shower.

4.2 You will need to contact the local electricity
company. They will check the circuit and carry out
what is necessary. They will also check the main
bonding.

5 The earth continuity conductor of the
electrical installation must be effectively
connected electrically to all exposed metal parts of
other appliances and services in the room in
which the shower is to be installed, to conform to
current IEE regulations.

Table A

CIRCUIT PROTECTION

unit cartridge

rating mcb fuse

7.0kW 30/32A 30A

7.5kW 32A 35A

8.0kW 40A 35A

8.5kW 40A 45A

9.0kW 40A 45A

9.5kW 40/45A 45A

10.5kW 45A 45A

Fig.2

T70si

5

ELECTRICAL REQUIREMENTS

5.1 All exposed metallic parts in the bathroom

must be bonded together using a cable of at least
4mm2cross sectional area. These parts include
metal baths, radiators, water pipes, taps and
waste fittings.

6 For close circuit protection DO NOT use a
rewireable fuse. Instead use a suitably rated
miniature circuit breaker (MCB) or cartridge fuse
(see table A).

6.1 In the interest of electrical safety a 30mA
residual current device (RCD) should be installed
in all UK electric and pumped shower circuits. This
may be part of the consumer unit or a separate
unit.

7 A 45 amp double pole isolating switch with
a minimum contact gap of 3mm in both poles
must be incorporated in the circuit.

7.1 It must have a mechanical indicator
showing when the switch is in the OFF position,
and the wiring must be connected to the switch
without the use of a plug or socket outlet.

7.2 The switch must be accessible and clearly
identifiable, but out of reach of a person using a
fixed bath or shower, except for the cord of a

cord operated switch, and should be placed so
that it is not possible to touch the switch body
while standing in a bath or shower cubicle. It
should be readily accessible to switch off after
using the shower.

8 Where shower cubicles are located in any
rooms other than bathrooms, all socket outlets in
those rooms must be protected by a 30mA RCD.

9 The current carrying capacity of the cable
must be at least that of the shower circuit
protection (see table B).

9.1 To obtain full advantage of the power
provided by the shower, use the shortest cable
route possible from the consumer unit to the
shower.

9.2 It is also necessary to satisfy the
disconnection time and thermal constraints which
mean that for any given combination of current
demand, voltage drop and cable size, there is a
maximum permissible circuit length.

10 The shower circuit should be separated from
other circuits by at least twice the diameter of the
cable or conduit.

10.1 The current rating will be reduced if the
cabling is bunched with others, surrounded by
thermal loft or wall insulation or placed in areas
where the ambient temperature is above 30°C.
Under these conditions, de-rating factors apply
and it is necessary to select a larger cable size.

10.2 In the majority of installations, the cable
will unavoidably be placed in one or more of
the above conditions. This being so, it is
strongly recommended to use a minimum of
10mm cabling throughout the shower
installation.

10.3

In any event, it is essential that individual
site conditions are assessed by a competent
electrician in order to determine correct cable size
and permissible circuit length.

Twin and earth PVC insulated cable

CURRENT CARRYING CAPACITY

clipped direct or
installed in an in conduit buried in a non
insulated wall or trunking insulated wall

6mm

2

6mm

2

6mm

2

32A 38A 46A

10mm

2

10mm

2

10mm

2

43A 52A 63A

16mm

2

16mm

2

16mm

2

57A 69A 85A

Note: Cable selection is dependent

on de-rating factors

Table B

T70si

WATER REQUIREMENTS

The installation must be in accordance with Water
Regulations/Byelaws.

To ensure activation of the heating elements, the
shower must be connected to a mains water
supply with a minimum running pressure of
100 kPa (1.0 bar) at a minimum flow rate of eight
litres per minute and a maximum static pressure
of 1,000 kPa (10 bar).

NOTE: If the stated flow rates are not available, it
may not be possible to achieve optimum
performance from the unit throughout the year.

During periods of high ambient temperatures it
may be necessary to select a low power setting to
achieve your preferred shower temperature.

The water supply can be taken from a cold water
storage cistern provided there is a minimum head
of ten metres above the sprayhead. It must be an
independent supply to the shower only.

If it is intended to operate the shower at pressures
above the maximum or below the minimum
stated, contact Customer Service for advice.

Fig.4 shows a typical system layout.

Do not use jointing compounds on any pipe
fittings for the installation.

SITING OF THE SHOWER

WARNING: The shower must not be
positioned where it will be subjected to
freezing conditions.

FOR EASE OF SERVICING, THE UNIT MUST
ALWAYS BE MOUNTED ON THE SURFACE OF
TILED WALLS. NEVER TILE UP TO THE UNIT.

Refer to

figure 5 for correct siting of shower.
Position the unit where it will NOT be in direct
contact with water from the sprayhead. Position
the shower unit vertically.

Allow sufficient room between the ceiling and the
shower to access the cover top screws.

NOTE: Water Regulations require the sprayhead
be ‘constrained by a fixed or sliding attachment so
that it can only discharge water at a point not less
than 25mm above the spill-over level of the
relevant bath, shower tray or other fixed
appliance’. The use of the supplied retaining ring
will in most cases meet this requirement, but if

Isolating

stopvalve

Mains
water
supply

Shower
unit

Mains electric supply

(via double pole switch)

Double

pole

isolating

switch

Separate permanently

connected supply

from consumer unit

Fig.4

Diagrammatic view (not to scale)

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