Creda EXPRESSIONS 500S User manual

12
HOW TOUSEYOUR EXPRESSIONS 500S SHOWER (SUMMARY)
IMPORTANT WARNINGS!
DO NOTSWITCH THEAPPLIANCE ON IF YOU SUSPECT ITOF BEING FROZEN.
WAIT UNTIL YOU ARE SURE IT HAS THAWED OUT.
DO NOTOPERATE THE APPLIANCEIFWATER DISCHARGES FROM THEPRESSURE RELIEF
VALVE. MAINTENANCEIS REQUIRED BEFORE THE APPLIANCECAN BE SAFELY USED.
THIS APPLIANCEIS NOTINTENDEDFOR USE BY PERSONS (INCLUDING CHILDREN
AND
THE INFIRM) WITH REDUCEDPHYSICAL, SENSORY ORMENTAL CAPABILITIES, OR LACK OF
EXPERIENCEANDKNOWLEDGE, UNLESS THEY HAVEBEEN GIVEN SUPERVISION OR
INSTRUCTION CONCERNING USE OF THE APPLIANCE
BY APERSON RESPONSIBLEFOR THEIR SAFETY.
CHILDREN SHOULD BESUPERVISED TO ENSURE THATTHEY
DO NOT PLAY WITH THE APPLIANCE.
1. Ensure theelectricity andwater are turned on to the unit.
2. Press the start / stop button “B”.
This will turn the showeron,the water will flow and the
indicator lights will glow showing chosen Power Selection.
We recommended that you do notenter the water spray
during this period, even if the shower has justbeen used.
3. Knob “A” controls the power selection.
Select “High”, “Med (medium)”or “Cold”
4. If the water isnot at your desired showering
temperature, turn knob “C” a small amount until
you reach the desired showering temperature.
Turn clockwise (follow blue or black arrows) for cooler.
Turn anti-clockwise (follow red arrows) for warmer.
Asahelpful guide the knob position is indicated byan
umberbeing displayed in Window “D”.
On the scale “1” is the coolest, whilst “9” is the hottest.
5. When you have finished showering, press thestart / stop button“B” again.
6. Waterwillcontinue to flow for up to 7 seconds beforeswitching off.
This reduces the temperature of the water in the tank for the next user.
The indicator lights will go out.
7. Wait for the waterto stop,switch off the electricity supply at the ceiling switch or local isolator.
Notes
•Wait 20 seconds for the temperature to stabiliseafter eachadjustment.
•The indicatorlights illuminate when theheaters areon and,if the shower has been
recently used, they may takeup to 20 seconds to comeon
.
During this time the water may go from very hot to cold before stabilising.
•The position of knob “C” will be approximately thesame each timethe shower is
used, varyingonly with incomingwatertemperature or pressure changes
(e.g. you willonly need to change from summer to winter).
•During normal operation, if anoverheated watertemperature is sensed thenthe
heater will switch off and the “Overheat” light will illuminate.
Waterwillcontinue to flow and cooldownbefore theheater switches back on again.
We offer a technical advisory service on thetelephone: RING 0844 372 7766 (UKONLY)
(A4) Leaflet No. 555-2138-60d
IMPORTANT:
This booklet should be leftwith the user after
installation and demonstration
CREDA EXPRESSIONS 500S
(Includes White, Silver Painted
andPolished Chrome Models)
SMARTTECHNOLOGY
ELECTRIC SHOWER
Installationand User Guide

2
CONTENTS
If you experience any difficulty with theinstallation or operation of your new
shower, then please refer to the “What to do if things go wrong” section in this
manual beforecontacting us.
INTRODUCTION
Thank you for purchasing a quality Creda Expressions500S Shower manufactured in England.
To enjoy yournew showerat its best, pleasetake timeto readthis manualthoroughly to
familiariseyourself with all instructions, BEFORE beginning installation.
The Creda 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 amountof adjustmentrequired.
Your shower is designed to stabilise temperature
changes caused by water pressure fluctuations.
These can resultfrom toilets being flushed ortaps being turned on and off.
When this happens your showering temperature will be held within a controlled band,provided that
the minimum pressure required by the shower is maintained (see “Effect of Other Water Devices”).
1. Your shower has beendesigned for convenience, economy and safety of use, provided that it is
installed, used and maintained in good working order and in accordance withour instructions and
recommendations.
2. Allwiring and installation must besupervised by a suitably qualified person.
3. THISAPPLIANCE 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 timeof installation.
Installations outside England and Wales must also conform to any local regulations in effect.
This appliance is intended to be permanently connected to thefixedelectrical wiringof the mains
supply with its own dedicatedsupply.
5. This appliancemust NOT be fitted where it maybesubjected to freezing conditions
6. DO NOT switch the appliance on if you suspect itof being frozen.
Wait until you are sure it has thawedout.
7. DO NOT fit any sort of tap or control on the applianceoutlet. The appliance is designed to have
an open outlet and should only be used with “Creda” recommended fittings.
8. Take careto avoid restrictingthe outlet of the pressure relief device. If water is discharged from
thepressure relief device,maintenance will be required before the appliance can be safely used.
9. Isolate themains electrical and water supplybefore removing thefront coverof theappliance.
Section
Introduction . ... .. .. . . .. ...... .. .. .. . ...... .. . .. .. ..... .. .. .. .. .
Important Safety Information .. . .. .. .. ... .. .. .. .. .. ... ... . .. .. .. ... ..
How to install your Expressions 500S Shower . . . .. ...... .. .. .. . ...... .. . ..
How to maintain your Expressions 500S Shower . .... .. .. .. .. . .... .. .. .. .. .
How to use your Expressions 500S Shower (Detailed) . . .... .. . ... .. .. ..... ..
Whatto do if things go wrong (1) Self Help ..... .. .. .. ....... . . . .. .......
Additional Accessories and Common Spare Parts . .. ..... .. .. .. . . ..... .. .. ..
Whatto do if things go wrong (2) Professional Service.. . .. .. .... .. .. .. .. .. ..
Creda After Sales Service.. . .. .. ...... .. . .. .. ..... .. .. .. . . ..... .. ..
How your Expressions 500S Shower Works . . ..... .. .. . ........ . .. .. ......
Guarantee and ContactDetails . .. .. ..... .. .. .. .. ..... .. .. . . . ...... .. ..
How to use your Expressions 500S Shower (Summary) . . . ... .. .. . .. ...... . .. .
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IMPORTANT SAFETYINFORMATION
11
:
Full details of terms and conditionsare available on requestfrom:-
APPLIED ENERGY PRODUCTS LIMITED
MORLEY WAY, PETERBOROUGH PE2 9JJ
TEL: [phone]
FAX: [phone]
Website: www.applied-energy.com
GUARANTEE AND CONTACTDETAILS

10
1. Water is heated instantaneouslyas it flows over the
heating elements in the copper cylinder(Diagram 8).
2. The heaters are only switched on when sufficient
water is flowing.
This is done automaticallywith a switch which works
on water pressure andis indicated by 2 or 3 lights
illuminating dependingon knob “A” power selection.
3. The wateris turned on and off by thesolenoid valve
built into the shower.
This is switched on when button “B” is pressed.
4. The flow of water isautomatically held at the level set
bythe user even though the supplypressure may
vary (see “Effect ofOtherWater Devices on Incoming
Water Supply”).
5. Ifthe water supply falls below a set limit, the pressure
switch will operate and switch off the power to the
elements. This is indicated bythe middlepower indication lights flickering andgoing out (see
“Effect of Other WaterDevices on Incoming WaterSupply”).
6. As afurther safeguard,a thermal cut-out switches thepower off if the water temperature
climbs above the set limit and the “Overheat” light will illuminate.
This cut-out, which givesan audibleclick, may also operate due to residual heat when theshower
is switched off. It will reset itself if water is runthrough the shower for 10 to 20 seconds, and
the “Overheat”light will go out.
7. The pressurerelief device is to safeguard against abnormal pressure conditions, and provides a
level of appliance protection should an excessivebuild ofpressure occurwithin the shower.
Effect of Seasonal Incoming Water Temperature Changes
The required water temperature is achieved by adjusting the rate of water flow.
Diagram 9 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 watersupplied 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 outlettemperature.
In summer the “Med (medium)” power setting may give adequate hot water.
In some winter conditions,it may be necessaryto selectthe inner orouter spray pattern only of
your shower handset.This will ensure correctoperation of the shower with aslightlylower flow rate.
Effect of OtherWaterDevices on IncomingWaterSupply
Your shower is designed to stabilisetemperature changes caused by waterpressure
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 pressure required by the shower is maintained.
Your shower requires a minimum running
pressure of 69kPa (0.7 bar, 10 psi).
At pressures above 69kPa (0.7 bar,10 psi) itwill minimise temperature fluctuations as detailed
above. If thewater pressure falls below 69kPa(0.7 bar, 10 psi) it is likely that the pressure switch
w
ill turnoff the powerto the heating elements,resulting in acold shower.
This will be indicated by the middle power setting indication lights flickering and going out.
HOWYOUR EXPRESSIONS500S SHOWER WORKS
3
WARNING: ALL WIRING AND INSTALLATION MUST BE
SUPERVISED BY A SUITABLY QUALIFIED PERSON.
WARNING: DONOT INSTALL THIS SHOWER WHERE IT MAY BE
SUBJECTED TOFREEZING CONDITIONS
We recommend that the installation is done in the following sequence.
a. Fixing the showerto the wall b. Plumbing c. Electrical connections
a. FIXING THE SHOWER TO THE WALL
1. Position the riserrail at a convenientheightfor majority of users as
detailed in Diagram 1a and markits position (also see separate
accessories fitting instructions where applicable).
2. Position the heater so that the top of the unit is horizontal and level
with, or a maximumof 0.6metres (2ft) belowthe top of the
riser rail. Chooseaflat piece of wall to avoid the possibility of
distorting the backplate thus making the frontcover a poor fit.
3. Adjust the position to get the most convenient arrangement taking
the following into account.
•The heater must not be mounted in the handset direct spray.
•The handset mustnot be able to come into contact with used water
in the cubicle, bathor basin. If it can, even after thehose has
been retained by the retaining ring (see Diagram 1b and
separate accessories fitting instructions sheet where applicable),
a vacuum breaker must be fitted (available from us).
4. Fix the riser rail with screws provided (see Diagram 1b and separate
instructions supplied withaccessories where applicable).
5. Decide the position of the electrical cable into the unit. If top orbottom entryis chosen
(according to Diagram 7 on page 9), cut away the walls in the backplate as shown in Diagram 2.
6. Decide the position of entry of the cold waterpipe into the unit.
Iftop, cutawaythe backplate.If rear, please read the section on plumbing. If bottom, remove
the frontcover (complete with knobs) and cut away the detachable corner section as shown.
HOW TO INSTALL YOUR EXPRESSIONS500S SHOWER

4
7. Ifyou have not yet done so, remove thefront cover assembly byundoing 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 7 on page9).
The top-fixing holeis a “key-hole”slot (another key-hole is providedfor alternate fixing), and
should be marked and drilled first.
Tighten top screw with head protruding about 10mm fromthe wall and hook the backplateover
the screw head. This allows for correct and accurate alignmentof your shower before marking
andfixing thebottom position.
You maynot wish to tighten up both screws at this stage as the holesare 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 WITHINSTALLATION.
The heatermust be connected to the mains cold watersupply.
This must have a minimumrunning 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 TOTHE SHOWER,
ENSURE THAT THE PIPE WORKIS FULLY FLUSHED OUT.
1. Unscrewthe “Red Cap” from the shower outletpipe and discard it in a suitable manner.
This has been used to seal the showerduring transit,and is no longer required.
2. Itis recommended that a WRAS (Water Regulations Advisory Scheme) listed isolating valve is
fitted to the incoming mains cold water before the shower unit.
This will allow the unit to be serviced or exchanged without having to turn off thewater atthe
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 orstainless steel pipe shouldbe used.
To avoid cross threading, DO NOT REMOVE the nut f
rom the elbow whenpositioning the pipe.
Iftop entry is required,turn the elbow 180° into the required position.
Ifrear entry is required, treat as top entry with an additional “Yorkshire” elbow (soldered type)
for fitting into the rearchannel.
In multiple installations, correct pipe work sizes should be calculated to maintain adequate flow
to each shower.
5. Itis permissible to use a WRAS (Water Regulations AdvisoryScheme) approved sealant sparingly
whilst avoiding excess finding its wayinto the shower operating parts.
6. With isolating valve connected, flush the pipework through to remove any particles etc,
before making the final connection to the shower.
Blockage in thewaterways (particularly the handset and solenoid valve) will prevent the heater
working properly. Note: You may becharged fora servicecall if itis due to incorrect installation.
7. The shower is designed to havean open outlet and should only be used with “Creda”
recommended fittings.
Do not connectthe handsetuntil after the shower front cover and corner section are fitted.
WARNING: DONOT FIT A TAP ON THE SHOWER OUTLET.
WARNING: TAKE CARE TO AVOID RESTRICTING THE OUTLET OF THE
PRESSURE RELIEFDEVICE 9
WHAT TODOIFTHINGSGOWRONG (2)
CREDA AFTER SALES SERVICE
PROFESSIONAL SERVICE
If the previous “Self Help” checks fail to restorethe performance, you should seek professional help.
The personwho installed the shower is probablythe best oneto investigate and correct itand is
certainly the person to contact if you have had a problem in the guaranteeperiod.
The following additional checklist is providedforthe benefit of the qualified service person.
WARNING: SWITCH OFF THE ELECTRICITY AT THE LOCAL ISOLATOR
BEFORE REMOVING THE COVERTO MAKE CHECKS
Watertoo 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.
Watertoo COLD Check circuit through thermal cut-out.
Check circuit through microswitches onthe pressure switch.
Check each element circuit.
Check operation of relay.
Check tightness of electrical connections.
No control over
waterflow Check Numbered Dial is correctly engagedinto Control Knob (see Diagram 5) Undo headworks of stabiliser valve.
Check stabiliser is in place and remove any debris in valve.
Water discharges
from pressure
relief valve
Check for cause of high pressure and remove it.
Blockage on outlet e.g. blockedshower handset.
Replace the pressure relief disc (not covered by guarantee).
Waterdoes 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 offera technical advisory service on the telephone to installers
and other customerswith problems in the field.
RING 0844372 7766 (UKONLY)
RING YOURLOCAL DEALER(Export Variants)
Some spare parts (see later section) can be supplied
against Credit or Debitcards.
RING 0844372 7750 (UKONLY)
Remember to quotethe exact type of shower,aswritten on the
front ofthe shower and on this leaflet.
The model and serial number arelocated on the bottom face of
the shower.
Make a note of those numbers here,and be sure to quote them if
you call for advice.
ModelNumber: 53-67_ _ _ _ _ __ _ _ __ _ _
SerialNumber: _ _ _ _ _ _ _ __ _ _ _ _ __ _
Note: You may be charged for a servicecall
if you do not have theserial number.

8
SELF HELP
If the shower is notworking satisfactorily, make thefollowing checks before calling out the installer.
Any one of these adjustments could restorethe performance.
The shower cycles
from HOTto COLD Theshower temperature is set too hotcausing thethermal cut-out (safety device) to operate.
Turn knob “C” clockwise (following the blue/black arrows)
to increase water flow.
Slowly increase thewater temperature by turning knob “C” anti-clockwise
following the “red arrows” until a comfortable showering temperature has been
reached.
YouMUSTWAITapproximately20 seconds for each adjustment toaffect the
water temperature.
“Med (medium)” setting may need to beselected.
Water too HOT Increase water flow by adjustingknob “C” clockwise (following the blue orblack
arrows).
“Med (medium)” setting may need to beselected.
Increase pressure to water supply e.g. fully openservice valve orstop cock.
Check hose is not kinked restricting the water flow.
Cleanshower handset.
Water too COLD Check poweris on by neon being illuminated.
Decrease waterflow by adjustingKnob“C” anti-clockwise (following the red
arrows).
“High” setting may need to be selected.
Select inner or outer onlyhandset spray pattern.
Spraypattern poor Cleanthe shower handset.
Water takes longer
to heat up Thermalcut-
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 notfallen so faras toletpressure switch cut out,
e.g. Another tap drawing water off.
Raise position of shower handset.
Water continues to
flow when
button“B” pressed
This is normal.
Theshower includes ashutdownfeaturethat means thewaterwill continueto
flow for up to 7 seconds after button“B” has beenpressed to stop the shower.
Brokenparts Please contact our spares department on 0844 372 7750 (UK only).
Fitting instructions areprovidedwithmost spares
Please Note:- The fitting of Spare Parts mustbe supervised by a suitably qualifiedperson.
White 2 metre Shower Hose Cat No. 83792578 Front Cover (White) Cat No. 93590346
Chrome 1.25m Shower Hose Cat No. 93797641 Front Cover (Silver) Cat No. 93550819
Chrome Standard Accessories Cat No. 83595317 Front Cover (Chrome) Cat No. 93550820
Chrome Multi-Mode Accessories Cat No. 83595318 Solenoid Valve Cat No. 93590722
Chrome Curved Accessories Cat No. 83595320 Cam and Adaptor Kit Cat No. 93590793
Curtainand Rail Pack Cat No. 83792812 Tank Clip Cat No. 93768309
Curtainand Rail Pack with PRV Washer Cat No. 93795817
Non-Slip Mat Cat No. 83792811 Cylinder “O”-Ring Cat No. 93795809
WRAS listed Water Isolating Valve Cat No. 93792452 Thermal Cut-Out 50/88°C Cat No. 93597836
Phased Shut-Down Relay Cat No. 93597878
Handset Cat No. 93597864
Chrome Shower Hose1.25m Cat No. 93797641
WHAT TODOIFTHINGSGOWRONG (1)
ADDITIONALACCESSORIESCOMMON SPARE PARTS
Additional accessoriesand spare parts can be
supplied againstany Credit or Debit cards
from Creda SalesHotline 0844 372 7750
5
c) ELECTRICAL
WARNING: THIS SHOWER MUST BE EARTHED.
The electrical installation must be in accordance with the currentBS.7671 (IEEWiringRegulations)
and “PartP” of the BuildingRegulations and/orlocal regulations
1. The shower unit is designed for a single phase AC electrical supply.
Pleasecheck therating plate on the unit to see what details apply to your shower.
AS A GUIDE ONLY (* Only applies if external earth impedance is less than 0.35 Ohms)
Rating CableSizes
Fuse / MCB
Cable Length
4.0mm²
6.0mm² 32AType B MCB 21m Max.
35m Max.
7.2 / 6.6kW 240 / 230V
6.0mm²
10.0mm² 40AType B MCB 27m Max. 45m Max.
6.0mm²
10.0mm² 40AType B MCB 27m Max.
45m Max.
8.5 / 7.8kW 240 / 230V 6.0mm²
10.0mm² 45ABS.1361 fuse 12m Max.* 21m Max.*
6.0mm²
10.0mm² 40AType B MCB 27m Max.
45m Max.
9.5 / 8.7kW 240 / 230V 6.0mm²
10.0mm² 45ABS.1361 fuse 12m Max.* 21m Max.*
10.5 / 9.6kW 240 / 230V 10.0mm² 45ABS.1361 fuse 12m Max.*
Remember to upgrade the cableif it runs in thermal insulation in a loft, or foralonger distance.
2. A means for disconnection inall poles must be incorporated in the fixed wiring in accordance
with thewiring rules.
Werecommend a ceilingswitch mounted in a convenient position.
3. Cut back cable as in Diagram 3. Connect cable to terminal block making sure that all the
retaining screws are VERY TIGHT and thatno cableinsulation is trapped under the screws.
WARNING: FAILURE TO COMPLY WITHTHESE
INSTRUCTIONS COULD RESULT IN
FAILURE OF THE TERMINAL BLOCK
4. Re-Fitthecorner section back into the backplate.

6
HOWTO MAINTAIN YOUR EXPRESSIONS500S SHOWER
5. Re-Fit the front cover (see Diagram 5), and secure by replacing the top and bottom fastening screws.
a. Ensure knob “A” is aligned tothe “High”position.
b. Ensure knob “C” is aligned to“12 o’clock.
c. In the main body of the shower, turn the “Camshaft” asshown.
d. In the main body of the shower, turn the “Numbered Dial” fully clockwiseuntilitis at the position
shown. Note:- this instruction should beused if the “DriveDial” becomesaccidentally dislodged.
e. Fitthe front cover of the shower to the mainbody.
Ensuring that the knobscorrectly engaged totheir mating component.
f. Check that knob “A”has beencorrectly alignedby ensuringthat all 3 power settings can be selected.
g. Check that knob “C”has beencorrectly alignedby turninganti-clockwise and ensuring that knobturns
approximately 1 fullturn and when turned back fully clockwise, returns to“12 o’clock”.
6. Fit the shower hose,and operate the shower first without the handset to flush outparticles,
fitthe handset and then operate the shower as onpage 7 or 12 andcheck:
a. Thatthewater gets toa satisfactory temperature and water flow canbe adjusted by control knob“C”.
b. Power selection operatesinall 3 positions,givinga change in water temperature andthat the power
indictor lightsfunctions correctly.
c. Check againfor leaks
d. Thattheholes in the shower handset are not blocked
7. DEMONSTRATE OPERATION TO USERS
It is recommendedthat the shower unit andhoseetc. be cleaned using a soft clothand that theuse of
abrasive or solvent basedcleaning fluid be avoided, especially on any platedfinishes.
Werecommend thatbefore any cleaning, the isolating switch be turnedoff, thus avoiding accidentally
switchingonthe shower.
WARNING: YOU MUST REGULARLY INSPECT THESHOWER HOSE FOR WEAR AND DAMAGE.
REPLACE IF NECESSARY, OR EVERY TWO YEARS, WITH OUR APPROVEDPART.
WARNING: IN ORDER TO MAINTAIN THE PERFORMANCE OFYOURSHOWER,
YOU MUST CLEAN THE SHOWER HANDSETREGULARLY
Allwater contains particles of lime-
scale, which build up in the shower handset and
unit reducing the performance.
It is therefore important to clean the shower handset by simply rubbing therubber
nozzles, or soaking in aproprietary lime-scale remover andrinsingthoroughly before use.
NOTE: After use it isnormal for somewater to drip from theshower handset for a
few moments.This inhibits lime-scale build-up over prolonged use.
7
IFWATER ISTOO COLD
Turn knob “C” anti-clockwise in the
directionofthe “red arrows” until the next
number is displayed in Window “D” and
continueturning anti-clockwise until you
getthe water temperature of your liking.
Wait 20 seconds after each adjustment
for thewater temperature to stabilise.
The finaladjustment may be anywhere on
the scale,even between numbers.
If after turning fully anti-clockwisewater is
still too cold, setshower patternonshower
handset to outer or inner pattern only.
IF WATER IS TOO HOT
Turn knob “C”clockwise in thedirection of the
“blue (or black) arrows” until the next number is
displayed inWindow “D” and continue turningclockwise
until you getthe water temperature of your liking.
Wait 20 seconds after each adjustment forthe 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 to the unit.
2. Your shower has 2 control knobs (see Diagram 6).
Knob “A” controlsthe 3 power settings.
The most popular is“High”.
There arealso options for a“Med (medium)”
or “Cold” shower (see notes 8 and 9).
Knob “C” controls the temperatureof the water,and as a
helpfulguide the knobposition is indicatedby a number
being displayed in Window “D”.
On the scale “1”is the coolest, whilst “9” is thehottest.
For thisexample turn knob “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 thatthe 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. Itis recommended thatyoudo
not wholly enter the water spray during thisperiod, evenif the shower hasjust been used.
5. Oncea temperature setting to yourliking has been achieved, knob “C” will rarely need adjusting. You
must however take into account required adjustments for variations of incoming mains water temperature
between summer and winter (see “Effect of Seasonal Incoming Water Temperature Changes” page 10).
6. When you have finished showering, press button“B” only (the “Med (medium)” light will go out).
Water willcontinue toflowfor upto 7 seconds before switching off.
This reducesthe temperature of the water inthe tank for the next user.
Waitfor the water to stop,and then switch off the electricity atthe ceilingswitch or localisolator.
7. The “Med (medium)” setting of knob“A” reducesthe power used by the shower givinga cooler showeror
the option of reduced water flow. Thisoption is mainly for summer usage and if thisis used then knob
“C” must be re-adjusted. On this setting 2 lights will illuminate.
8. The “Cold” setting of knob“A” will supply water withoutany heating,and 1 lightwill 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” page 10).
WARNING: DO NOT SWITCH THE SHOWER ON IF YOU SUSPECTIT OF BEING FROZEN.
WAIT UNTIL YOU ARE SURE IT HAS THAWED OUT.
WARNING: DO NOT OPERATE THE SHOWER IF WATER IS DISCHARGED FROM THE PRESSURE RELIEF
VALVE. MAINTENANCE IS REQUIRED BEFORE THE SHOWER CAN BE USED.
WARNING: CONSIDERATION SHOULD BE GIVEN TO SUPERVISING THE YOUNG, ELDERLY AND THE
INFIRM WHILST THEY USE THIS SHOWER.
HOWTO USE YOUR EXPRESSIONS 500S SHOWER (DETAILED)