RED-RING Expressions 500S User manual

IMPORTANT:
This booklet should be left with the user after
installation and demonstration
REDRING EXPRESSIONS 500S
SMART TECHNOLOGY
ELECTRIC SHOWER
Installation and User Guide

2
INTRODUCTION
If you experience any difficulty with the installation or operation of your new
shower, thenplease refer to the “What to do if things go wrong” section in this
manual before contacting us.
Section Page
Introduction _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 2
Important Safety Information _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 2
How to use your Expressions 500S Shower (Detailed) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 3
How your Expressions 500S Shower Works _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4
How to maintain your Expressions 500S Shower _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 5
What to do if things go wrong (1) Self Help _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 5
What to do if things go wrong (2) Professional Service _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 6
Redring After Sales Service _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 6
How to install your Expressions 500S Shower _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 7
Additional Accessories and Spare Parts _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 10
Guarantee and Contact Details _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 11
How to use your Expressions 500S Shower (Summary) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 12
Thank you for purchasing a quality Redring Expressions 500S Shower manufactured in England.
To enjoy your new shower at its best, please take time to read this manual thoroughly, and having
done so, keep it handyfor future reference.
The Redring Expressions 500S is an electric shower incorporating our “Smart Technology” with a
“Set and Forget” function of a push-button start/stop facility which starts the shower at a pre-set
power and flow rate reducing the amount of adjustment required.
Your shower is designed to stabilise temperature
changes caused by water pressure fluctuations.
These can result from toilets being flushed or taps being turned on and off.
When this happens your showering temperature will be held within a controlled band, provided that
the minimum pressurerequired by the shower is maintained (see “Effect of Other Water Devices”).
1. Your shower has been designed for convenience, economy and safety of use, provided that it is
installed, used and maintained in good working order and in accordance with our instructions and
recommendations.
2. All wiring and installation must be supervised by a suitably qualified person.
3. THIS APPLIANCE MUST BE EARTHED.
4. The installation must be in accordance with the current edition of BS.7671 (the “IEE Wiring
Regulations”) and “Part P” of the “Building Regulations” in force at the time of installation.
Installations outside the United Kingdom must also conform to any local regulations in effect.
This appliance is intended to be permanently connected to the fixed electrical wiring of the mains
supply with its own dedicated supply.
5. This appliance must NOT be fitted where it may be subjected to freezing conditions
6. DO NOT switch the appliance on if you suspect it of being frozen.
Wait until you are sure it has thawed out.
7. DO NOT fit any sort oftap or control on the appliance outlet. The appliance is designed to have
an open outlet and should only be used with “Redring” recommended fittings.
8. Take care to avoid restricting the outlet of thepressure relief device.If water leaks from the
pressure relief device, maintenance will be required before the appliance can be safely used.
9. Isolate the mains electrical and water supply before removing the front cover of the appliance.
CONTENTS
IMPORTANT SAFETY INFORMATION

3
IF WATER IS TOO COLD
Turn knob“C” anti-clockwise inthe
direction of the “red arrows” until the next
number is displayed in Window “D” and
continue turning anti-clockwise until youget the
water temperature of your liking.
Wait 20 seconds after each adjustment for
the water temperature to stabilise.
The final adjustment may be anywhere on the
scale, even between numbers.
If after turning fully anti-clockwise water is still
too cold, set shower pattern on shower handset
to outer or inner pattern only.
IF WATER IS TOO HOT
Turn knob “C” clockwise in the direction of the
“blue arrows” untilthe next number isdisplayed
in Window “D” and continue turning clockwise
until you get the water temperature of your liking.
Wait 20 seconds after each adjustment for the
water temperature to stabilise.
The final adjustment may be anywhere on the
scale, even between numbers.
If after turning fully clockwise, water isstill too
hot, adjust knob “A” to “Med (medium)” setting
and re-adjust as above.
Water flow will be reduced on thissetting.
1. Ensure the electricity and water are turned on tothe unit.
2. Your shower has 2 control knobs(see diagram 1).
Knob “A”controlsthe 3 power settings.
The most popular is “High”.
There are also options for a “Med (medium)”
or “Cold”shower (see notes 8 and 9).
Knob “C”controls the temperature of the water, and as a
helpful guide the knob position isindicated by anumber
being displayed in Window “D”.
On the scale “1” isthe coolest, whilst “9”is the hottest.
For this example turn outerknob “A” to “High”
and set knob “C” to display number “5”.
3. Press button “B”. The water will flow and 3 lights will illuminate
to indicate that the selected power rating is“High” (indicated by “High” next to the Indicator Lights).
4. Allow about 20 seconds for the temperature of the water to stabilise.
5. Once a temperature setting to your liking has been achieved, knob“C” willrarely need adjusting. You
must however takeinto account required adjustments for variationsof incoming mains water temperature
between summer and winter (see “Effect of Seasonal Incoming Water Temperature Changes” page 4).
6. When you have finished showering, press button “B” only (the “Med (medium)” light will go out).
Water will continue to flow for up to 7 seconds before switching off.
This reduces the temperature of the water in the tank for the next user.
Switch off the electricity at the ceiling switch or local isolator.
7. The “Med (medium)” setting of knob “A” reduces the power used by the shower giving acooler shower or
the optionof reduced water flow. This option ismainly used for summer usage and if thisis usedthen
knob “C”must be re-adjusted. On this setting 2 lights will illuminate.
8. The “Cold”setting of knob “A” will supply waterwithout any heating, and 1 light will illuminate.
9. Your shower is designed to stabilise temperature changes caused by water pressure fluctuations (see
“Effect of Other Water Devices on Incoming Water Supply” see page 4).
WARNING: DO NOT SWITCH THE SHOWER ONIFYOU SUSPECT ITOF BEING FROZEN.
WAITUNTIL YOUARESURE IT HAS THAWED OUT.
WARNING: DO NOT OPERATE THE SHOWER IF WATERLEAKS FROM THE PRESSURE RELIEF VALVE.
MAINTENANCE IS REQUIRED BEFORETHE SHOWER CAN BE USED.
HOW TO USE YOUR EXPRESSIONS 500S SHOWER (DETAILED)

4
WARNING: CONSIDERATIONSHOULD BE GIVEN TO SUPERVISING THE YOUNG, ELDERLY AND THE
INFIRM WHILST THEY USE THIS SHOWER.
1. Water is heated instantaneously as it flows over the
heating elements in the copper cylinder (diagram 2).
2. The heaters are only switched on when sufficient
water is flowing.
This is done automatically with a switch which works
on water pressure and is indicated by 2 or 3 lights
illuminating depending on knob “A” power selection.
3. The water is turned onand off by the solenoid valve
built into the shower.
This is switched on when button “B” is pressed.
4. The flow of water is automatically held at the level
set by the user even though the supply pressure
may vary (see “Effect of Other Water Devices on
Incoming Water Supply”).
5. If the water supply falls below a set limit, the
pressure switch will operate and switch off the
power to the elements. This is indicated bythe middle power indication lights flickering and going
out (see “Effect of Other Water Devices on Incoming Water Supply”).
6. As a further safeguard, a thermal cut-out switches the power off if the water temperature
climbs above the set limit and the “Overheat” light will illuminate.
This cut-out, which gives an audible click, may also operate due to residual heat when the shower
is switched off. It will reset itself if water is run through the shower for 10 to 20 seconds, and
the “Overheat” light will go out.
7. The pressure relief device is to safeguard against abnormalpressure conditions.
Effect of Seasonal Incoming Water Temperature Changes
The required water temperature is achieved by adjusting the rate of water flow.
Diagram 3 shows the principle involved in relating temperature rise to flow rate.
The higher the water rate the lower the temperature and vice versa.
The temperature of the water supplied from the mains can vary considerably
throughout the year from 5 to 20°C.
This means that in the winter, flow rate will be less than in the summer to
achieve the same outlet temperature.
In summer the “Med (medium)” power setting may give adequate hot water.
In some winter conditions, it may be necessary to select the inner or outer spray pattern only of
your shower handset. This will ensure correct operation of the shower with a slightly lowerflow rate.
Effect of Other Water Devices on Incoming Water Supply
Your shower is designed to stabilise temperature changes caused by water pressure
fluctuations. These canresult from toilets being flushed or taps being turned on and off.
When this happens your showering temperature will be held within a controlled band, provided that
the minimum pressurerequired by the shower is maintained.
Your shower requires aminimum operating pressure of 69kPa (0.7 bar, 10 psi).
At pressures above 69kPa (0.7 bar, 10 psi) it will minimise temperature fluctuations as detailed
above. If the water pressure falls below 69kPa (0.7 bar, 10 psi) it is likely that the pressure switch
HOW YOUR EXPRESSIONS 500S SHOWER WORKS

5
HOW TO MAINTAIN YOUR EXPRESSIONS 500S SHOWER
will turn off the power to the heating elements, resulting in a cold shower.
This will be indicated by the middle power setting indication lights flickering and going out.
It is recommended that the shower unit and hose etc. be cleaned using a soft cloth and that the use
of abrasive or solvent cleaning fluid be avoided.
We recommend that before any cleaning, the isolating switch be turned off, thus avoiding
accidentally switching on the shower.
WARNING: IN ORDER TO MAINTAINTHE PERFORMANCE OF YOUR SHOWER,
YOU MUST CLEAN THE SHOWER HANDSET REGULARLY
All water contains particles of lime, which build up in the shower handset and unit reducing the
performance.
It is therefore important to clean the shower handset by simply rubbing the rubber nozzles.
NOTE: After use it is normal for some water to drip fromthe shower handset for a few moments.
This inhibits scale build-up over prolonged use.
SELF HELP
If the shower is unsatisfactory, make the following checks before calling out the c
ontractor.
Any one of these adjustments could restore the performance.
The shower cycles
from HOT to COLD The shower temperature is set too hot causing the thermal cut-out (safety device) to operate.
Turn knob“C” clockwise (direction of the “blue arrows”) to increase water flow.
Slowly increase the water temperature by turning knob “C” anti-clockwise in the
direction of the “red arrows” until a comfortable showering temperature has
been reached.
You MUST WAIT approximately 20 seconds foreach adjustment to affect the
water temperature.
“Med (medium)” settingmay need to be selected.
Water too HOT Increase water flow by adjusting knob “C” clockwise (direction of the “blue
arrows”).
“Med (medium)” settingmay need to be selected.
Increase pressure to water supply e.g. fully open service valve or stop cock.
Check hose is not kinked restricting the water flow.
Clean shower handset.
Water too COLD Check power is on by neon being illuminated.
Decrease water flow by adjusting Knob “C” anti-clockwise (direction of the “red
arrows”).
“High” setting may need to be selected.
Select inner or outer only handset spray pattern.
Spray pattern poor Clean the shower handset.
Water takes longer
to heat up Thermal cut-out has operated after previous use (“Overheat” light is on)
(automatically resets when unit cools down)
“High” setting may need to be selected.
Water goes cold
while using
shower
Check neon light is on.
Check water pressure has not fallen so far as to let pressure switch cut out,
e.g. Another tap drawing water off.
Raise position of shower handset.
WHAT TO DO IF THINGS GO WRONG (1)

6
WHAT TO DO IF THINGS GO WRONG (2)
REDRING AFTER SALES SERVICE
Water continues to
flow when
button “B” pressed
This is normal.
The shower includes a shutdown feature that means the water will continue to
flow for up to 7 seconds after button “B” has been pressed to stop the shower.
Broken parts Please contact our spares department on 08709 000420 (UK only).
Fitting instructions are provided with most spares
PROFESSIONAL SERVICE
If the previous “Self Help” checks fail to restore the performance, you should seek professional help.
The person who installed the shower is probably the best one to repair it and is certainly the person
to contact if you have had a problem in the guarantee period.
The following additional checklist is provided for the benefit of the qualified service person.
WARNING: SWITCH OFF THE ELECTRICITY AT THE LOCAL ISOLATOR
BEFORE REMOVING THE COVER TO MAKE CHECKS
Water too HOT Water flow restricted by blockage in filter of solenoid valve.
Switch off water, loosen inlet connection to solenoid, remove filter in solenoid
with long nosed pliers and flush clean.
Water too COLD Check circuit through thermal cut-out.
Check circuit through microswitches on the pressure switch.
Check each element circuit.
Check operation of relay.
Check tightness of electrical connections.
No control over
water flow Check Numbered Dial is correctly engaged into ControlKnob (see diagram.9) Undo headworks of stabiliser valve.
Check stabiliser is in place and remove any debris in valve.
Water leaks from
burst pressure
relief valve
Check for cause of high pressure and remove it.
Blockage on outlet e.g. blocked shower handset.
Replace the pressure relief disc (not covered by guarantee).
Water does not
flow when button
“B” is pressed.
Check circuit through solenoid coil. If defective then replace.
Check circuit through microswitches. If defective then replace.
Check circuit through shutdown PCB. If defective then replace.
Power supply not reaching shower.
We offer a technical advisory service on the telephone to
contractors and other customers with problems in the field.
RING 08709 000430 (UK ONLY)
RING YOUR LOCAL DEALER (Export Variants)
Some spare parts (see later section) can be supplied
against Credit or Debit cards.
RING 08709 000420 (UK ONLY)
Remember to quote the exact type of shower, as written on the
front of the shower and on this leaflet.

7
The model and serial number are located on the bottomface of the shower.
Make a note of those numbers here, and be sure to quote them if you call for advice.
Model Number: 53-67_ _ _ _ _ _ _ _ _ _ _ _ _
Serial Number: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
WARNING: ALL WIRING AND INSTALLATION MUST BE
SUPERVISED BY A SUITABLY QUALIFIED PERSON.
WARNING: DO NOT INSTALL THIS SHOWER WHERE IT MAY BE
SUBJECTED TO FREEZING CONDITIONS
We recommend that the installation is done inthe following sequence.
a. Fixing the shower to the wall b. Plumbing c. Electricalconnections
a. FIXING THE SHOWER TO THE WALL
1. Position the riser rail at the height recommended in diagram 5 and
mark its position (also see separate accessories fitting instructions).
2. Position the heater so that the top of the unit is horizontaland level
with, or a maximum of 0.6 metres (2ft) below the top of the
riser rail. Choose a flat piece of wall to avoid the possibility of
distorting the backplate thus making the front cover a poor fit.
3. Adjust the position to get the most convenient arrangement taking
the following into account.
•The possible need to use the handset over the sink for hair washing etc.
•The heater must not be mounted in the direct spray from the handset.
•The handset must not be able to come into contact with used waterin the cubicle, bath or
basin. If it can, even after the hose has been retained by the soap dish (see separate
accessories fitting instructions sheet) then a vacuum breaker must be fitted.
4. Fix the riser rail with screws provided (see separate instructions supplied with accessories).
5. Decide the position of the electrical cable into the unit. If top or bottom entry is chosen
(according to diagram4), cut away the walls in the backplate as shown in diagram 6.
HOW TO INSTALL YOUR EXPRESSIONS 500S SHOWER

8
6. Decide the position of entry of the cold waterpipe into the unit.
If top, cut away the backplate.
If rear, please read the section on plumbing.
If bottom, remove the front cover (complete with knobs) and cut away the detachable corner
section as shown.
7. If you have not yet done so, remove the front cover assembly by undoing the retaining screws at
the top and bottom of the unit and lifting the cover off.
Your shower is provided with 2 fixing positions in the backplate (see diagram 4).
The top-fixing hole is a “key-hole” slot (another key-hole is provided for alternate fixing), and
should be marked and drilled first.
Tighten top screw withhead protruding about 10mm from the wall and hook the backplate over
the screw head. This allows for correct and accurate alignment of your shower before marking
and fixing the bottom position.
You may not wish to tighten up both screws at this stage as the holes are elongated to allow for
adjustment after otherconnections have taken place.
b. PLUMBING
WARNING: ENSURE THAT THE MAINS WATER SUPPLY MEETS THE REQUIREMENTS
BELOW BEFORE CONTINUING WITH INSTALLATION.
The heater must be connected to the mains cold water supply.
This must have a minimum running pressure of 69kPa (0.7 bar, 10 psi)
and a maximum pressure of 690kPa (7.0 bar, 100 psi).
WARNING: BEFORE CONNECTING THE PIPE WORK TO THE SHOWER,
ENSURE THAT THE PIPE WORK IS FULLY FLUSHED OUT.
1. Unscrew the “Red Cap” and “Washer” from the shower outlet pipe and discard them in a suitable
manner. These have been used to seal the shower during transit, and are no longer required.
2. It is recommended that a WRAS (Water Regulations Advisory Scheme) listed isolating valve is
fitted between the rising main and the unit.
This will allow the unit to be serviced or exchanged without having to turn off the water at the
water stop valve.
3. The heater can be fed from a header tank provided this has a minimum head of 7 metres (23ft).
4. Ø15mm copper or stainless steel pipe shouldbe used.
To avoid cross threading, DO NOT REMOVE the nut from the elbow when positioning the pipe.
If top entry is required, turn the elbo
w 180° into the required position.
If rear entry is required, treat as top entry with an additional “Yorkshire” elbow (soldered type)
for fitting into the rear channel.
In multiple installations, correct pipe work sizes should be calculated to maintain adequate flow
to each shower.
5. It is in order to use a WRAS (Water Regulations Advisory Scheme) approved sealant sparingly
whilst avoiding excess finding its way into the shower operating parts.
6. With stop valve connected, flush the pipe work through to remove any particles etc,
before making the final connection to the shower
.
Blockage in the water ways (particularly the handset and solenoid valve) will prevent the heater
working properly.

9
7. The shower is designed to have an open outlet and should only be used with ”Redring”
recommended fittings.
Do not connect the handset until after the shower front cover and corner section are fitted.
WARNING: DO NOT FIT A TAP ON THE SHOWER OUTLET.
WARNING: TAKE CARE TO AVOID RESTRICTING THE OUTLET OF THE
PRESSURE RELIEF DEVICE
c) ELECTRICAL
WARNING: THIS SHOWER MUST BE EARTHED.
The electrical installation must be in accordance with the current BS.7671 (IEE Wiring Regulations)
and “Part P” of the Building Regulations and/or local regulations
1. The SHOWER is designed for a single phase AC electrical supply.
Please check the rating plate on the unit to see what details apply to your unit.
AS A GUIDE ONLY (* Only applies if external earth impedance is less than 0.35 Ohms)
Rating Cable Sizes
Fuse / MCB
Cable Length
4.0mm²
6.0mm² 32A Type B MCB 21m Max.
35m Max.
7.2 / 6.6kW 240 / 230V
6.0mm²
10.0mm² 40A Type B MCB 27m Max. 45m Max.
6.0mm²
10.0mm² 40A Type B MCB 27m Max.
45m Max.
8.5 / 7.8kW 240 / 230V 6.0mm²
10.0mm² 45A BS.1361 fuse 12m Max.* 21m Max.*
6.0mm²
10.0mm² 40A Type B MCB 27m Max.
45m Max.
9.5 / 8.7kW 240 / 230V 6.0mm²
10.0mm² 45A BS.1361 fuse 12m Max.* 21m Max.*
10.5 / 9.6kW 240 / 230V 10.0mm² 45A BS.1361 fuse 12m Max.*
Remember to upgrade the cable if it runs in thermal insulation in a loft, orfor a longer distance.
2. A means for disconnection in all poles must be incorporated in the fixed wiring in accordance
with the wiring rules.
We recommend a ceiling switch mounted in a
convenient position.
3. Cut backcable as in diagram7. Connect cable to
terminal block making sure that all the retaining
screws are VERY TIGHT and that no cable
insulation is trapped under the screws.
WARNING: FAILURE TO COMPLY WITH THESE
INSTRUCTIONS COULD RESULT IN
FAILURE OF THE TERMINAL BLOCK
4. Re-Fit the corner section back into the backplate.

10
5. Re-Fit the front cover (see diagram 9)
a. Ensure knob“A” is aligned tothe “High” position.
b. Ensure knob“C” isaligned to“12 o’clock.
c. In the main body of the shower, turn the
“Camshaft” as shown.
d. In the main body of the shower, turn the “Numbered Dial” fully clockwiseuntil it is at the position
shown. Note:- this instruction should be used if the “Drive Dial” becomes accidentally dislodged.
e. Fit the front cover ofthe shower to the mainbody.
Ensuring that the knobs correctly engaged to their mating component.
f. Check that knob “A”has been correctly aligned by ensuring that all3 power settingscan be selected.
g. Check that knob “C”has been correctly aligned by turning anti-clockwise and ensuring that knobturns
approximately 1 full turn and when turned back fully clockwise, returns to “12 o’clock”.
1
6. Replace the top and bottom fastening screws.
7. Fit the shower hose, andoperate the shower first without the handset to flush out particles,
fit the handset andthen operate the shower as on page 3 or12 and check:
a. That the water gets to a satisfactory temperature.
b. Water flow can be adjusted by control knob “C”.
c. Power selection operatesin all 3 positions, giving a change in water temperature and that the power
indictor lights functions correctly.
d. Check again for leaks
e. That the holesin the shower handset are not blocked
8. DEMONSTRATE OPERATION TO USER

11
Please Note:- The fittingof Spare Partsmust be supervised by a suitably qualified person.
White 2 metre Shower Hose Cat No. 83792578 Front Cover Cat No. 93597863
WRAS Water Isolating Valve Cat No. 93792452 Tank-Base Assy (7.2kW) Cat No. 93597848
Chrome Standard Accessories Cat No. 83595317 Tank-Base Assy (8.5kW+) Cat No. 93597849
Chrome Multi-Mode Accessories Cat No. 83595318 Solenoid Valve Cat No. 93590722
Chrome Curved Accessories Cat No. 83595320 Neon Cable Assy Cat No. 93590506
Curtain and Rail Pack Cat No. 83792812 Tank Clip Cat No. 93590715
Curtain and Rail Pack with PRV Washer Cat No. 93795817
Non-Slip Mat Cat No. 83792811 Cylinder “O”-Ring Cat No. 93795809
Thermal Cut-Out 50/88°C Cat No. 93797836
Phased Shut-Down PCB Cat No. 93797813
Phased Shut-Down Relay Cat No. 93797878
Handset Cat No. 93597863
Height Adjuster Cat No. 93597861
:
ADDITIONALACCESSORIES SPARE PARTS
GUARANTEE AND CONTACT DETAILS
Additionalaccessories and spare parts can be
supplied against any Credit orDebit cards
from Redring Sales Hotline [phone]

12
HOW TO USEYOUR EXPRESSIONS 500S SHOWER (SUMMARY)
Full details of terms and conditions are available on request from:-
APPLIED ENERGY PRODUCTS LIMITED
MORLEY WAY, PETERBOROUGH PE2 9JJ
TEL: [phone]
FAX: [phone]
Website: www.redring.co.uk
1. Ensure the electricity and water are turned on to the unit.
2. Press the start / stopbutton “B”.
This will turn the shower on, the water will flow and the
indicator lights will glow showing chosen Power Selection.
3. Knob “A” controls the power selection.
Select “High”, “Med (medium)” or “Cold”
4. If the water is not at your desired showering
temperature, turn knob “C” a small amount until you
reach the desired showering temperature.
Turn clockwise (follow blue arrows) for cooler.
Turn anti-clockwise (follow red arrows) for warmer.
As a helpful guide the kno
b position is indicated by a number being displayed in Window “D”.
On the scale “1” is the coolest, whilst “9” is the hottest.
5. When you have finished showering, press the start / stop button “B” again.
6. Water will continue to flow for up to 7 seconds before switching off.
This reduces the temperature of the water inthe tank forthe next user.
The indicator lights will go out.
7. Switch off the electricity supply at the ceiling switch or local isolator.
Notes
•Wait 20 seconds for the temperature to stabilise after each adjustment.
•The indicator lights illuminate when the heaters are on and, if the shower has been
recently used, can take up to 20 seconds to come on
.
During this time the water may go from very hot to cold before stabilising.
•The position of knob “C” will be approximately the same each time the shower is
used, varying only with incoming water temperature or pressure changes
(e.g. you will only need to change from summer to winter).

13
IMPORTANT WARNINGS!
DO NOT SWITCH THE APPLIANCE ON IF YOU SUSPECT IT OF BEING FROZEN.
WAIT UNTIL YOU ARE SURE IT HAS THAWED OUT.
DO NOT OPERATE THE APPLIANCE IFWATER LEAKS FROM THE PRESSURE RELIEF
VALVE. MAINTENANCE IS REQUIRED BEFORE THE APPLIANCE CAN BE SAFELY USED.
CONSIDERATION SHOULD BE GIVEN TO SUPERVISING THE YOUNG, ELDERLY AND
THE INFIRM WHILST THEY USE THIS APPLIANCE
•During normal operation, if an overheated water temperature is sensed then the
heater will switch off and the “Overheat” light will illuminate.
The water will continue to flow and cool down before the heater switches back on
again.
Leaflet No.555-2138-01B