Heatrae Sadia Accolade Guide

20
Heatrae Sadia
Hurricane Way,
Norwich,
Norfolk NR6 6EA.
www.heatraesadia.com
Due to continuous improvement and updating, specifications may be altered without prior notice.
Service
Tel: [phone]
Fax: [phone]
email: [email protected]
Sales
Tel: [phone]
Fax: [phone]
email:[email protected]
The quality name in water heating
APPROVED SPARES STOCKISTS
Electric Water Heating Co.,
2 Horsecroft Place, Pinnacles,
Harlow, Essex CM19 5BT
Tel: [phone]
E-mail: [email protected]
Eyre & Elliston
Unit 9 & 10, Chantry Gate Business Centre,
Springfield Road, Hayes,
Middlesex
Tel: [phone]
Parts Center
Network 65 Business Park, Bentley Wood Way,
Burnley, Lancashire BB11 5ST
Tel: [phone]
www.partscenter.co.uk
Newey & Eyre
Specialists Products Division
Please contact your local branch.
UK Spares Ltd.,
Tower Lane, Warmley,
Bristol BS30 8XT
Tel: [phone]
William Wilson Ltd.,
Unit 3A, 780 South Street,
Whiteinch, Glasgow G14 0SY
Tel: [phone]
1
ELECTRIC SHOWER
INSTALLATION and USER INSTRUCTIONS
ref. 36 00 5641 issue 4
PLEASE READ AND UNDERSTAND THESE INSTRUCTIONS BEFORE
COMMENCING INSTALLATION
PLEASE LEAVE THESE INSTRUCTIONS WITH THE USER
START
STOP
USER
PROTECT
HIGH
LOW FLOW
MEDIUM
INSPECT
HANDSET
LOW
PHASED
SHUTDOWN

2
Figure 1 Internal components
Figure 2 Wiring diagram
Fixing Lugs
Thermal cutout
Printed Circuit
Board (PCB)
Front cover
Heat
exchanger
Water
control valve
Outlet pipe
Pressure relief device
Removable
bottom
section
Inlet spigot
Fixing lug
Alignment
post
Drain slot
Solenoid
valve
L & N
terminal
block
Earth
terminal
block
Back plate
NL
red
green/yellow
black
Cut
Out
Terminal
block
red
Inner
container
brown
white
black
red
white
red
red
red
red
brown
LH RH
white
Pressure switches
PCB
Solenoid
black
19
REMEDY
A. Switch off shower and isolating switch. Renew fuse or
reset mcb. If they operate a second time, contact a
qualified electrician.
B. Follow the same procedure as above. If this has
happened with a ‘split load’ consumer unit on initial
installation, check that the neutral core of the shower
feed cable is connected to the ‘protected’ neutral bar
of the unit.
A. Descale handset as described in 8.5. Reset the timer
as described in 5.56.
POSSIBLE CAUSE
A. Cartridge fuse or
miniature circuit
breaker (mcb) has
operated in your
fusebox (or
consumer unit) or
switch fuse.
B. Residual current
device (rcd) (or
earth leakage
circuit breaker)
has operated.
A. Handset needs
descaling.
SYMPTOM
6. “Low Flow”
indicator not lit.
Isolating switch
“On” but its
neon not lit .
7. ‘Inspect Handset’
warning light
flashes.
Where a fault cannot be corrected by
either yourself or your installer, contact our
Service Department, (address and phone
number below), who will try to help over
the phone. If necessary, they can arrange
a visit by one of our service engineers.
We find that the vast majority of problems
can be solved by reference to these fitting
instructions or by discussion over the
phone. In the event that our engineer is
called and finds that the fault is caused by
faulty installation or usage, or lack of
reasonable maintenance, a call-out
charge will be made.

18
SYMPTOM
1. continued
2. Flow adequate
but water too
cold.
3. Water too hot.
4. Water runs from
around hose.
Pressure relief
device (PRD)
has operated
due to excess
pressure build-
up.
5. Temperature
varies while
showering,
cycling hot/
cold.
POSSIBLE CAUSE
F. continued
A. Shower heater is on
the ‘LOW’ power
setting.
B. Water flow too high.
A. Water flow too low.
B. Sprayplate blocked
with scale and
debris.
C. Water pressure too
low.
A. Handset Blocked.
B. Hose damaged or
kinked.
A. Thermal cut-out is
operating, normally
making a ‘click’ as it
does so.
B. Input pressure is
below the minimum
required (see 3.2).
Flow is unstable.
REMEDY
4. Release ‘LOW’ and ‘START/STOP’ buttons.
5. Press ‘START/STOP’, the shower will be reset to
previous settings.
A. Ensure that the shower is on ‘HIGH’ setting, where
applicable.
B. Reduce the flow by turning the water control knob
clockwise slowly. NOTE: If the knob is turned too far
clockwise, the safety pressure switch inside the shower
will turn off the heating elements. This is apparent
when the ‘reduce temp’ light starts flashing. If this
happens, turn the knob anticlockwise until the light
stops flashing.
A. Increase the flow by turning the water control knob
anticlockwise slowly.
B. Clean the handset sprayplate.
C. Switch to ‘LOW’ setting, if applicable.
A. Clean out the sprayplate as in ‘Maintenance’ Section 8.
Call a service engineer to remove the front cover and
reset the PRD by removing the bent bracket, pushing
the black outlet boss back into the heat exchanger, and
refitting a new bracket.
If the fault occurs again without the hose being
damaged or the handset blocked, contact our Service
Department.
B. Replace kinked or damaged hose and be careful not to
turn water control knob too far anticlockwise. Reset as
in ‘A’.
A. Increase the flow by turning the water control knob
anticlockwise. Clean the handset and sprayplate.
B. Ensure that your stop cock and servicing valve are fully
open. If they are, ask your installer or the local water
company to check that the running pressure is above
the minimum required (see 3.2).
3
1 TECHNICAL SPECIFICATIONS
1.1 CONNECTIONS
Inlet connection -15mm ext. diameter
spigot for
compression fitting.
Water entry point - Top,bottom, rear and
right hand side.
Cable entry point - Top, bottom and rear
1.2 ELECTRICAL
Nominal Power Rating
1.3 MATERIALS
Backplate, cover
and control knob - ABS
Elements - Copper sheathed rod
type
1.4 DIMENSIONS
Height - 297mm
Width - 186mm
Depth - 86mm
1.5 STANDARDS AND APPROVALS
Complies with the requirements of
EN 60335-2-35.
British Electrotechnical Approvals Board
(BEAB) approved.
Complies with European Community
Directives (CE).
CONTENTS
Internal components .......................... p2
Wiring diagram .................................. p2
TECHNICAL SPECIFICATIONS ........ p3
IMPORTANT INFORMATION ............ p4
How an instant electric shower works p5
SITING AND PLUMBING .................. p6
Things you must do ........................... p6
Things you must not do ..................... p7
ELECTRICAL INSTALLATION ........... p8
CONNECTING TO SERVICES ......... p9
Preparation ........................................ p9
Cable entry ........................................ p9
Pipe entry ........................................ p10
Plumbing ......................................... p11
Electrics ........................................... p11
Fitting the front cover ....................... p12
Commissioning ................................ p12
User Protect System........................ p13
Inspect Handset light ....................... p13
Setting the Descale Time ................. p13
Setting Descale Timer to zero.......... p14
GUARANTEE & SERVICE POLICY p14
ENVIRONMENTAL INFORMATION p14
USER INFORMATION ..................... p14
Maintenance .................................... p16
Inspection ........................................ p16
FAULT FINDING ..................... p17 - p19
Address and phone numbers........... p20
Approved Spares Stockists .............. p20
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4
2 IMPORTANT INFORMATION
2.1 Your shower is designed and tested
to the very highest standards and complies
fully with all of the relevant national/
international standards for safety and
reliability. The shower is manufactured in
a BS EN ISO 9001:2000 -registered
factory - your assurance of a quality
product.
2.2 To ensure correct use and
maintenance of the shower, please read
and adhere to the following warnings and
guidelines.
FOR INSTALLERS
2.3 The Installation must comply with the
Building Regulations Part P and the Water
Regulations. Where there is a new
installation, or a replacement product is
not identical to the one being replaced, the
cable sizes, circuit protective devices,
bonding and other requirements of the
Building Regulations must be assessed
by a (registered) qualified and competent
electrician, who should carry out the
installation taking into account the site
conditions.
2.4 WARNING: THIS APPLIANCE
MUST BE EARTHED.
2.5 Before removing your shower heater
cover always ensure your shower heater
is isolated from the electrical mains.
2.6 This product is splash-proof and is
approved for use in shower cubicles and
over baths. However, do not install the
shower heater in a position where the
handset, in its normally-parked
position, will consistently direct the
spray over it.
2.7 To comply with the Water
Regulations a servicing valve must be
fitted in the pipework to the shower, in an
accessible place. This will be of great
benefit if any maintenance work or
complete replacement of the shower is
required later on.
2.8 This shower is designed for domestic
use and is not vandal-resistant. If it is
installed in an institutional or commercial
situation, frequent inspection may be
necessary, and our guarantee may be
affected.
FOR USERS
2.9 If water emerges from anywhere
other than the spray head outlets, do not
use your shower, TURN OFF
ELECTRICITY and refer to the Fault
Finding section.
2.10 IT IS IMPORTANT TO CLEAN THE
SPRAY PLATE REGULARLY, particularly
in hard water areas, where this may be
necessary as often as once a week.
Failure to do so will affect the
performance of the shower and in
extreme cases may cause the pressure
relief device (PRD) to operate - see Fig.
1 and Fault Finding (p18).
Refer to the handset user instructions for
handset maintenance information.
2.11 The shower heater outlet, hose
and handset act as a vent. They must
not be blocked, obstructed, or have
connected to them any fitting not
approved by the manufacturers. The
use of unapproved accessories may
invalidate the guarantee and affect the
performance and safety of the unit.
2.12 WARNING! DO NOT USE the
shower if the HOSE IS DAMAGED in any
way; for instance if the outer covering has
parted to reveal the inner tube.
A damaged hose can suddenly restrict the
17
SYMPTOM
1. No flow or not
enough flow.
POSSIBLE CAUSE
A. Electrical supply to
shower heater off.
B. Water control knob is
turned fully
clockwise.
C. Water turned off at
mains or servicing
valve.
D. SHOWER HEATER
SUSPECTED OF
BEING FROZEN.
E. There may be an
outlet blockage.
F. ‘User Protect’ system
has been activated
(temp indicators and
‘START/STOP’ light
flashing).
REMEDY
A. Ensure that the electrical supply to the shower is
switched on.
B. Turn water control knob anticlockwise.
C. Ensure water is fully turned on at the mains and at
servicing valve in circuit.
D. If so, DO NOT USE.
1. Switch off immediately at isolating switch.
2. Turn water off at servicing valve (if fitted) or at stop
cock.
3. Contact our Service Department.
E. Disconnect handset from hose and run the shower.
1. If water flows, then handset is blocked with scale or
debris. Remember that disturbances to plumbing
elsewhere in your house, or in the street, can dislodge
debris which can find its way to the shower. Clean the
handset and spray rings/plate thoroughly.
2. If the water does not flow, remove hose from the
shower outlet.
2a If the water flows then the hose is blocked. This could
be due to damage, severe kinking or even an
obstruction. Replace with a new hose.
2b If the water does not flow, there is a blockage in the
plumbing to the shower, or the shower itself. Contact
our Service Department if the shower is considered to
be the problem.
F. Position the handset where it can spray safely and
purge the heater of the hot water as follows:-
1. Press and hold in ‘START/STOP’ button.
2. Press and hold in ‘LOW’ button. Water will flow from
handset.
3. When temperature has reduced to a safe level, Low
flow and flashing lights will go out.
9 FAULT FINDING
In the unlikely event of a problem, consult the trouble shooting chart below.
For your particular symptom follow the suggested remedies in the order given. If you
are unable to remedy the problem, CONTACT YOUR INSTALLER IN THE FIRST
INSTANCE. Do not attempt any electrical or plumbing work unless you are competent
to do so.

16
MAINTENANCE
‘Inspect Handset’ warning
8:4 This light will flash when it is advised
that the handset may need descaling.
Remove the handset and clean following
the instructions below. To reset the
‘INSPECT HANDSET’ warning, follow the
instructions given in 5.56.
Cleaning the Handset
Also refer to instructions supplied with
handset.
8:5 To obtain the best performance from
your shower, the handset must be cleaned
regularly, maybe as often as once a week
in hard water areas.
8:6 This is because the fine outlet holes
can become blocked with scale and this
will affect the pattern of the spray and
cause the heater to perform poorly.
8:7 The easiest and most effective
method of cleaning your handset,
regardless of which type you have with
your shower, is to soak it in a proprietary
descalant. For best results the handset
should be left to soak overnight.
8:8 The handset with rubber spray outlets
can be cleaned by simply rubbing one’s
hand over them firmly to dislodge the
scale.
INSPECTION
8:9 We recommend that in the interests
of safety the shower and its electrical
installation is checked by a qualified
electrician at least every two years.
5
Heating
element
Pressure
switch
Cold
water
inlet
Flow
control
Start/
stop
button
Electrical
terminals
LN
flow and result in extremely hot water
being emitted from the spray head.
A damaged hose could completely block
the outlet of the shower; the resulting
increase in pressure could burst a
weakened or damaged hose.
2.13 Do not install the shower in a situation
where the water in it could freeze. Any
damage caused by freezing will not be
covered by the guarantee.
WARNING. If you suspect your shower
is frozen, DO NOT SWITCH ON. If you
have switched on, SWITCH OFF
IMMEDIATELY. Refer to Fault Finding
(p17).
2.14 Do not leave the infirm, disabled
users, or young children unattended in the
shower.
2.15 Before stepping into the shower,
always test the temperature of the spray
with your hand.
2.16 Switch off at the isolating switch after
use. This is a safety procedure
recommended with ALL electrical
appliances.
2.17 As with all electrical appliances, it is
advisable to have your shower and
installation checked at least every two
years by a competent electrician, to
ensure that there is no deterioration due
to age and usage.
2.18 Shampoo and shower gel should be
stored using the gel hook and soap dish
(where provided) and must not be placed
on top of the shower unit.
HOW AN INSTANT ELECTRIC
SHOWER WORKS
2.19 When the user starts the shower by
pressing the start/stop button, the flow
control lets in the water. If there is
sufficient water pressure, the pressure
switch will turn on the heating elements.
2.20 The element in the tank will start to
heat the water and this takes typically 10-
20 seconds.
2.21 By controlling the flow rate of water
over the heating elements, it will be
warmed up to the correct temperature.
Reducing the flow rate will increase the
water temperature and vice versa.
2.22 The shower has high, medium and
low settings that give further control of
temperature.
2.23 The temperature of the incoming
water varies, mains water can be as low
as 5°C in the winter and as high as 20°C
in the summer. This affects the output
temperature of the shower which is only
able to raise the temperature of the water
by a given amount, depending upon the
flow rate.
Figure 3 Schematic of typical electric shower

6
3 SITING AND PLUMBING
3.1 Spend some time planning exactly
where to site the shower heater and riser
rail. Bear in mind the height of people who
will be using it.
THINGS YOU MUST DO
3.2 Check that the water pressure to
the shower is adequate. If in doubt,
consult a competent plumber.
Maximum and minimum pressures are:-
Maximum - 1 MPa
Minimum
- up to and including 9.5kW: 0.09 MPa
- Over 9.5kW: 0.11 MPa
Running pressure with at least 5 l/min
flow rate
The use of other services connected to
the water pipe supplying the shower heater
may cause the water pressure to drop
below the minimum. Therefore this should
be taken into account.
The following conversions may be useful:
1 bar = 14.5 lbf/in²
= 33.3 ft head of water.
= 10m head of water
= 0.1 MPa
1 lbf/in² = 2.3 ft head.
3.3 Electric shower heaters are normally
plumbed into the mains water (except for
special low pressure versions). However,
the shower heater may be fed from a
storage tank as long as there is a sufficient
head of water.
3.4 Mount the shower heater on a flat
vertical wall with the outlet, to which the
hose is connected, pointing downwards,
using three suitable wall plugs and screws.
3.5 DO NOT place the shower heater
where it will be in the direct spray from a
normally-parked handset.
Figure 4 Siting of riser rail and heater
5mm minimum
Lowest possible
handset position
Bath/Shower Tray
610mm ( 4)
Highest Position
Riser rail
Hose-retaining ring
Lowest position
Shower
heater
305mm (1 )
3.6 Allow room around the shower heater
for removal of the front cover.
3.7 Position the riser rail close to the
heater, not necessarily on the same wall
(but bear in mind paragraph 3.5) so that
in its highest parked position, the handset
is not more than 610mm (24”) above the
bottom of the heater, and in its lowest
position it is no lower than 305mm (12”)
below the heater - see Fig. 4.
3.8 If the handset can reach to within
25mm (1”) of the spillover level of the bath,
shower tray, wash basin, WC or bidet, then
to prevent the possibility of back-
siphonage of used water (Water
Regulations Guide G15.14/R15.14) you
must either:-
1. Fit a hose-restraining ring - see Fig. 4.
15
Make adjustments carefully. Give the
shower a few seconds after each
adjustment to stabilise, then check the
temperature by hand before stepping into
the shower. Note the number of
temperature indicators lit, this will aid in
setting your ideal temperature when next
using the shower.
4. The ‘MED’ and ‘LOW’ power settings
allow you to choose the power used
by your shower heater. These settings
use less power and can be used in
the warmer periods when incoming
water temperature is higher. They can
also be used to obtain a cooler spray
without adjusting the water control
knob.
A cold shower cannot be obtained.
8.2 To turn off the shower:
1. Press the ‘START/STOP’ button.
Water will continue to flow and the
‘PHASED SHUTDOWN’ light will flash
for a few seconds. This feature
purges the hot water from the heater
can to ensure there is no hot ‘slug’ of
water if the shower is used again
shortly after.
2. Turn off your isolating switch.
8.3 Warning Lights
1. ‘LOW FLOW’. If the water control
knob is turned too far clockwise, the
pressure switch will turn off the heating
elements and the ‘LOW FLOW’ light
will flash. Turn the water control knob
anticlockwise until the indicator stops
flashing.
2. ‘USER PROTECT’. This feature
prevents the spray temperature
reaching harmful levels. Refer to
sections 5.51 and 5.52.
Please note that this shower is not
thermostatic, it will not keep spray
temperature constant whatever the
change in external influence.
Figure 12 External features of shower
START
STOP
USER
PROTECT
HIGH
LOW FLOW
MEDIUM
INSPECT
HANDSET
LOW
PHASED
SHUTDOWN
Stop /Start button
and indicator light
Power setting buttons
and indicator lights
Water Control Knob
Temperature
Indicator display
User protect
Low flow
Inspect handset
Phased shutdown
Indicator lights

14
8 USER INFORMATION
8.1 To turn on and set temperature:
1. Turn on your isolating switch.
2. Press the ‘START/STOP’ button. The
water will flow and the elements set
to the power setting last used. The
‘START/STOP’ and power setting
indicators will light. The shower can
also be turned on by pressing one of
the power setting buttons.
3. Allow the shower approximately 30
seconds to heat up and check the
water temperature with your hand.
Adjust as necessary by turning the
water control knob.
WARMER - DECREASE FLOW - TURN
KNOB CLOCKWISE
COOLER - INCREASE FLOW - TURN
KNOB ANTI-CLOCKWISE
SETTING DESCALE TIMER TO
ZERO
5:55 Carry out the following procedure to
stop the ‘Inspect Handset’ light flashing.
The descale timer can only be set to zero
when the ‘INSPECT HANDSET’ light is
flashing.
5.56 Hold down the ‘START/STOP’ button
and then momentarily press the ‘LOW’
button. The descale time will then be set
to zero and the ‘INSPECT HANDSET’ light
will stop flashing.
5.57 The shower will continue to function
even when the ‘INSPECT HANDSET’ light
is flashing. The system is simply a helpful
reminder that the shower head may
require descaling.
6 GUARANTEE & SERVICE POLICY
This product is guaranteed against faulty
materials and manufacture for a period of
2 years from the date of purchase
provided that:-
6.1 The unit has been installed in
accordance with the Installation and User
Instructions and all relevant Codes of
Practice and Regulations in force at the
time of installation and that all necessary
controls and safety valves have been fitted
correctly.
6.2 Any valves and controls are of
Heatrae Sadia recommended type and
specification.
6.3 The unit has not been modified or
tampered with in any way and has been
regularly maintained as detailed in the
Installation and User Instructions.
6.4 The unit has been used only for
heating potable water.
The unit is not guaranteed against
damage by frost and the inner container
with integral heating element is not
guaranteed against excessive scale build-
up.
This guarantee in no way affects the
statutory rights of the consumer.
The policy of Heatrae Sadia is one of
continuous product development and, as
such, we reserve the right to change
specifications without notice.
7 ENVIRONMENTAL INFORMATION
Heatrae Sadia products are manufactured
from many recyclable materials. At the
end of their useful life they should be
disposed of at a Local Authority Recycling
Centre in order to realise the full
environmental benefits.
7
2. Fit a double-check valve in the
pipework to the shower.
3.9 Decide from which direction your inlet
pipe will enter the shower heater. There
is a choice of entry from top, bottom, right
hand side or rear - see Fig. 9.
3.10 Ensure there are no services such
as gas, water pipes, electrical or telephone
cables beneath the surface of the wall
before drilling.
3.11 The water connection to the shower
heater should be made using standard
15mm outside diameter copper pipe or a
stainless steel pipe. The ends of the pipe
should be cut square and be free from
internal and external burrs and deep
scratches.
3.12 Cut all necessary pipework to length
with a pipe cutter and not a hacksaw, to
minimise swarf - see Fig. 5.
3.13 Before making the final water
connections to the shower heater, the
pipework MUST BE FLUSHED
THOROUGHLY to remove brick dust,
swarf etc. which could severely damage
the shower itself - see Fig. 6.
3.14 A Water Regulations Advisory
Service listed servicing valve should be
fitted in the water supply pipe to the
shower. This is to allow the shower heater
to be serviced without turning off the water
supply to other appliances.
THINGS YOU MUST NOT DO
3.15 DO NOT use plumber’s paste on any
joints as this may damage the shower.
3.16 DO NOT use a blow-torch or other
form of heat close to the shower heater
as this may damage the non-metallic
parts.
3.17 DO NOT use excessive force, but do
ensure adequate support, when making
connections.
Figure 5 Cutting pipes
Figure 6 Flushing the pipework

8
Figure 7 Schematic of typical electrical layout
Double pole isolating switch:
pull cord or wall mounted in accordance
with IEE regulations
Shower unit
(use rear entry when it is possible)
RCD (can be part of the
consumer unit)
Meter
80A or 100A main switch
Consumer unit Meter ‘tails’
4 ELECTRICAL INSTALLATION
WARNING
4.1 This appliance must be earthed.
4.2 The installation must comply with the
Building Regulations Part P. Where there
is a new installation, or a replacement
product is not identical to the one being
replaced, the cable sizes, circuit protective
devices, bonding and other requirements
of the Building Regulations must be
assessed by a (registered) qualified and
competent electrician, who should carry
out the installation taking into account the
site conditions.
The following notes are for guidance only:
4.3 The shower heater must only be
connected to a 230/240V ac supply.
4.4 Before making any electrical
connections within the installation,
make sure that no terminal is live. If in
doubt, SWITCH OFF the whole installation
at the consumer unit or switch fuse (where
fitted).
4.5 It is strongly recommended that a
30mA rcd is incorporated in the circuit,
even if it is not required to comply with BS
7671.
4.6 A double-pole isolating switch with a
contact separation of at least 3mm in each
pole, must be incorporated in the circuit.
This must have a mechanical indicator
showing when the switch is in the OFF
position. A neon lamp alone is not
sufficient.
13
5.48 The ‘MED’ and ‘LOW’ power settings
allow you to reduce the power used by the
heater and can be used at times of the
year when the inlet water temperature is
higher. They can also be used to obtain a
cooler spray without adjusting the water
control knob. A cold shower cannot be
obtained.
5.49 To stop the shower, press the
‘START/STOP’ button. The ‘START/
STOP’ and ‘HIGH’, ‘MEDIUM’ or ‘LOW’
lights will go OFF. Water will continue to
flow for a few seconds and the ‘PHASED
SHUTDOWN’ light will flash. This allows
hot water to be flushed from the can.
When flow stops, turn off the isolating
switch.
USER PROTECT SYSTEM
5.50 The User Protect system is intended
to prevent showering temperatures
reaching harmful levels. To test its
operation, turn on the shower by pressing
‘HIGH’. Turn the water control slowly
clockwise until the ‘USER PROTECT’ light
flashes. This indicates that if the water
temperature is not reduced soon the
shower will automatically switch to the next
lowest power setting. The shower will
remain at the new power setting until reset
by the user.
5.51 If the shower senses that the
temperature is rising too fast to prevent
the spray from becoming very hot, it will
automatically shut off the water flow. All
the temperature indicators and the
‘PHASED SHUTDOWN’ light will flash,
and the ‘USER PROTECT’ light will come
on steady. To reset see section 9 FAULT
FINDING, item 1F.
INSPECT HANDSET LIGHT
5.52 This product is fitted with an
electronic ‘descale timer’ which keeps
track of the total time the shower has run
since the timer was last reset. After a
certain number of hours has elapsed, the
‘Inspect Handset’ light will flash, indicating
that the shower head is probably now in
need of descaling. Depending on the
hardness of your water, a different duration
between cleaning will be needed, so there
is a facility to set the time duration after
which the ‘Inspect Handset’ light will go
on. This is called the ‘descale time’.
SETTING THE DESCALE TIME
5.53 The descale time (the time duration
before the ‘INSPECT HANDSET ‘ light
flashes) is set at the factory for hard water
areas, but it can be reset, as follows:-
1. Switch shower isolating switch OFF.
2. Press and hold button as listed below,
3. Turn shower isolating switch ON.
4. Then release the button.
5.54 The settings can be changed at any
time using the above procedure. This
does not automatically set the timer to
zero; if the system is changed to a ‘harder’
setting, then the ‘INSPECT HANDSET’
light may immediately flash on.
To Press and hold in:
Set for VERY SOFT
water (approx. 90 hours) ‘STOP’ button
Set for SOFT water
(approx. 30 hours) ‘LOW’ button
Set for HARD water
(approx. 20 hours) ‘MED’ button
Set for VERY HARD
water (approx. 10 hours) ‘HIGH’ button

12
5.35 Ensure that all three screws hold the
shower backplate to the wall firmly.
5.36 Strip the outer insulation sheath back
as required.
5.37 Strip the insulation from the cores and
make connections to the LIVE (L) (brown
or red), NEUTRAL (N) (blue or black) and
EARTH terminal block. The earth wire
must be sleeved green/yellow. Make sure
that the cores of the cable lie tidily and do
not touch any metallic part of the shower.
They must not be under strain. There is
no cable clamp.
5.38 Ensure that the cable does not foul
the area above the bottom removable
section, where the knob gear will fit when
the front cover is fitted into place.
5.39 Make sure that all the terminal block
screws are tightened very firmly. Replace
the bottom section of the backplate.
FITTING THE FRONT COVER
5.40 Turn the valve fully clockwise (open).
Turn the water control knob in the cover
so that the pointer is at the 7 o’clock
position.
5.41 Carefully fit the cover to the
backplate, ensuring that the lugs slide into
their sockets. You may have to adjust the
water control knob slightly to enable its
gear to mesh with that of the control valve.
NOTE: The alignment post on the
underside of the cover fits into the recess
in the centre of the valve gear to aid the
fitting of the cover.
5.42 Fit the cover fixing screws. The
longer one is for the lower fixing point. You
may have to push the front cover firmly
against the backplate seal, to enable the
screws to locate properly.
COMMISSIONING
NOTE: The first commissioning of the
shower is intended to ensure the heater
unit contains water before the unit is
switched to the high setting.
5.43 Secure the handset on the riser rail
where it can spray safely. Turn on the
water isolating valve (if applicable).
5.44 Turn the water control knob fully
anticlockwise, then half a turn clockwise.
5.45 Turn on the electrical isolating switch.
Press the ‘LOW’ button and check that the
‘LOW’ light comes ON. There may be
gurgling noises as the water fills the heater
can.
NOTE: The shower can be turned on by
pressing either the ‘START/STOP’, (in this
case it turns on at the power setting last
used) or by pressing one of the power
selector buttons.
5.46 Allow water to flow for about 30
seconds, press the ‘HIGH’ button, check
the ‘HIGH’ light comes ON and the ‘LOW’
light goes OFF. Turn the water control
knob clockwise until the lower three lights
of the temperature display are ON. Turn
clockwise for warmer and anticlockwise
for cooler. Allow a few seconds after each
adjustment for the temperature to
stabilise.
5.47 The more indicators ON in the
temperature display, the higher the spray
temperature will be. Continue to turn the
water control knob clockwise; the flow will
reduce and the ‘LOW FLOW’ light will
flash. Turn the water control knob
anticlockwise until the ‘LOW FLOW’ light
goes OFF and the temperature display is
lit as previously.
NOTE: Should the ‘USER PROTECT’
light flash, refer to the User Protect System
section.
9
5 CONNECTING TO SERVICES
PREPARATION
5.1 Remove the three fixing screws
which hold the front cover onto the
backplate. Note that the lower screw is
longer than the upper two.
5.2 Carefully remove the cover which
holds the control knob by pulling directly
away from the backplate.
5.3 Carefully take out the removable
bottom section of the backplate by lifting
its sockets clear of the pegs on the
backplate. This allows greater access for
installing the cable and pipe. Keep it safe,
as it could easily be damaged.
5.4 Decide which entry points you will use
for cable and water pipe - see Fig. 9.
5.5 Decide where to mount the shower,
refer to Section Three for guidance.
Ensure that you leave enough room
around the shower for removal of the front
cover for inspection or servicing at a later
date.
5.6 It is best to mount the shower on top
of any tiling, so that it can be replaced
easily in the future without requiring
Figure 8 Removing cover
re-tiling. If you must tile around the
shower, DO NOT grout right up to the
shower backplate as this makes
subsequent removal difficult. Do not seal
the shower to the wall using bath sealant,
as the shower will not be harmed by water
dripping behind it.
5.7 Remove the relevant areas of the
backplate, which are not knockouts, using
a sharp knife and/or a round file.
WARNING
5.8 The printed circuit board (pcb) is quite
fragile and very expensive. It is positioned
fairly close to the top right-hand mounting
hole of the backplate; if you are in danger
of damaging a board during mounting the
shower, it can be removed temporarily by
carefully pulling it from its four mounting
pegs. The long narrow section of the
board on the left is weak, so ensure that it
is not put under any stress. The board
will still remain attached by its leads and
should not be disconnected; position it
carefully while you fix the shower to the
wall.
5.9 When repositioning the pcb, ensure
that it fits into place without fouling
anything, with its holes over the mounting
pegs. Then push the board firmly near
the four pegs so that it snaps into place.
CABLE ENTRY
5.10 Available entry points:- top, bottom
and rear (rear is generally the easiest).
Side entry is not possible. The thinned
areas in the backplate and bottom section
are suitable for a cable size up to 16mm².
5.11 For rear entry, cable must emerge
from the wall only in the areas specified in
Fig. 9. You will need at least 280mm of
cable to emerge from the wall to allow
connection to the terminal block.
Bottom
section

10
PIPE ENTRY
5.12 Available entry points:- top, bottom,
rear and right hand side (bottom is
generally the easiest). The inlet spigot is
smooth, 15mm diameter and is designed
to accept a 15mm compression fitting.
This must be an elbow for top, bottom and
rear entry, and a straight connector for side
entry. You should use compression rings
(olives) made of copper rather than brass,
as copper will crush down better onto the
plastic spigot. Push-fit connectors cannot
be used.
5.13 Rear Entry. If the pipework is to
enter from the rear, you must cut away
the wall from around the pipe to allow room
for the nut on the compression elbow to
be recessed into the wall - see Fig. 11.
The pipework must be connected to the
elbow BEFORE the shower is fitted to the
wall; if you were to fix the pipe in place
first, you would not be able to get a
spanner onto the compression nut.
Figure 9 Backplate dimensions (mm)
Figure 10 Connection of pipe to inlet
Figure 11 Pipe fitting
5.14 Depending on the type of
compression elbow used, you may need
to remove a small part of the bottom
section of the backplate in order for it to fit
over the elbow nut.
5.15 Top Entry. You must connect the
ELBOW to the INLET SPIGOT first; if you
were to connect the elbow to the pipe first,
there would not be enough room within
the pipe channel in the shower to
manoeuvre the elbow onto the spigot.
Bottom Top Rear
Use compression fitting
with copper olive
11
5.16 Side Entry. You must use a straight
connector with an overall length (including
nuts and olives) of less than 42mm.
PLUMBING
5.17 Decide where to connect to the water
mains for your feed to the shower. Ensure
that the pipe you have selected is not a
gas pipe (they can look similar) or a hot
water pipe or from a cold water storage
tank (unless you have sufficient head - see
3.2 & 3.3).
5.18 Cut the necessary pipework to length,
assemble and offer up to the installation
before making any soldered joints. Ensure
that the pipe is the correct length, as
shortening it can be difficult once joints
have been made.
5.19 Carry out any cutting with pipe cutters
in preference to a hacksaw, to minimise
swarf. Use 15mm compression fittings,
preferably with copper compression rings
(olives), for the connection to the shower
heater.
5.20 Remember to incorporate a servicing
valve and, if required, a double-check
valve - see 3.8 & 3.14.
5.21 Locate your stop cock and turn off
the water supply. Check that the pipe
you intend tapping into no longer carries
water, by opening a tap that the pipe
supplies.
5.22 Make your connection to the pipe. If
it is on a low-lying loop there may be some
water left in the pipe, so be prepared for
some flow of water. Make all joints except
that to the shower heater before flushing.
5.23 It is essential to flush the system
in order to clear debris, particles of
solder and swarf which could enter and
damage components within the
shower heater, prior to connecting to
the shower - see Fig. 6. It may be best
to take the shower off the wall to do this.
5.24 Turn the water off after flushing,
either at the stop cock or by using your
servicing valve.
5.25 Remount the shower firmly and make
the final water connection to it. Turn the
water on again.
5.26 No water will flow from the shower
outlet until the electrics are connected, as
the shower incorporates a solenoid valve.
5.27 Check for leaks in all pipework, and
rectify as necessary.
5.28 When the shower fitting is complete
the riser rail and accessories can be fitted,
please refer to separate instructions in
accessory box.
ELECTRICS
5.29 Design your system as outlined in
Section Three. Lay the cable in your
chosen route, ensuring that you have
ample length.
5.30 Leave the connection to the
consumer unit or switch-fuse until last.
5.31 Remember, when working on
electrical components, ensure they are
not live. If in any doubt, switch off at your
main switch at the fuse board or consumer
unit.
5.32 If you find it necessary to increase
access for fitting the cable, the shower can
be unplumbed at its inlet pipe and
temporarily removed from the wall.
5.33 Feed the cable through the opening
in the backplate below the terminal block.
5.34 Make sure that you route the cable
so that the bottom section of the backplate
will fit in place.