Creda 550C User manual

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Full details of terms and conditions are available on request from: -
APPLIED ENERGY PRODUCTS LIMITED
MORLEY WAY, PETERBOROUGHPE2 9JJ
TEL [phone] / FAX: [phone]
Website:www.creda-showers.co.uk
(LeafletNo. 559.2324.82f)
550C
SHOWER HANDBOOK
IMPORTANT:
This booklet should be left with the user after
installationand demonstration

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Contents
Information for the user Page
Howtouse yourCreda Shower . . . . . .. ... .. . 2
Howyour Creda ShowerWorks . . . . .. . .. .. . . 3
Whatto do if things go wrong . . . . . . . . . . . .. . 4
Howto maintain your Creda Shower .. . . . . . . 4
Additional Accessories .. . .. . . .. . .. .. .. . .. 7
Information for the installer
Fixing the Shower tothewall . . . . . . . . . . . . . . 5
Plumbing . .. . . .. . .. .. ... . . . . . . . . . . . . . .. 6
Electrical .. . . .. . . . . . . . ... . . . . . .. . .. .. .. 6
Guarantee . . . . . . . .. .. .. .. .. . . . . . . . . . . .. . 8
Thank you for choosingaquality Creda product manufactured in Peterborough, England
Howto use your Creda Shower
1. Ensure the electricityand water are turned on to the unit.
2. Function of buttons: -
Button “A” – Starts shower on “HIGH” giving maximum power.
Button “B” – Starts shower on “MEDIUM” giving an economysetting.
Button “C” – Starts shower on “COLD” giving water withno heating.
Button “D” – “SHUTDOWN” switches the shower off and cools the water automatically.
Your showerhas 3 powersettings selected by pushingthe corresponding button on thefront cover.
Itcan bestarted by pressing “A”, “B” or“C” buttons.
Once pressed, a lightwill illuminate next to the buttonconfirming that power selection has beenmade.
3. Once either “A” (HIGH) or “B” (MEDIUM) button have beenpressed, you will needto adjust the temperatureof the
water. This is donebyrotating knob “E”. Turn the knob until 3 lights illuminate on the arc. Allow 20 seconds for the
temperature to settle. If it is too low thenturn the knob anti-clockwise, allow another 20 seconds.
Repeat this procedure until the temperature is to your liking.
4. Ifthe temperature is too high then turn knob "E" clockwise allowing 20 seconds between adjustments.
The finaladjustment can be anywhere on the scale. Summarising:
Clockwise Lowers temperature (less lights)
Anti-Clockwise Raises temperature (more lights)
Themore lights that are illuminated,the hotter thewatercoming out of the handset.
The radial lights indicate the position oftheflow knob in it’s travel
i.e. all lights on – valve fully anti-clockwise (minimumflow). All light off – valve fully clockwise (maximumflow).
See diagram3 for relationship of flow to temperature.
Once a temperature setting to your liking has been achieved, knob “E” will rarelyneedadjusting,eg: adjust for
variations of incoming mains water temperature between summerand winter.
5. When you have finished showering,push button “D” only.The electricitytotheelements is then disconnected and
the adjacent lightswill flash. Water will continue toflow for approximately 5 seconds beforeswitching off.
This reduces the temperature of the water in the tank for the next user.
Switch off the electricityatthe ceiling switch or local isolator, where fitted.
6. Your showeris designed to stabilize temperature changes caused bywater pressure fluctuations. These can
result fromtoilets being flushed or taps being turned on and off. When this happens your showering temperature will
be held within a controlled band, providedthatthe minimumpressure required bythe shower is maintained.
7. Your showerrequires a minimumoperating pressure of 69kPa (0.7 bar, 10 psi).At pressures above 69kPa
(0.7 bar, 10 psi) it will minimizes temperature fluctuations as detailed above in note 6. If the water pressure falls
below 69kPa (0.7 bar, 10 psi) it is likely that the pressure switch will turn off the powerto the heating elements,
resulting in a cold shower.
The “low pressure” light will illuminate and the “overheat” light maycomeon to indicate this has happened.
8. During normal operation ifan overheated watertemperature is sensed bythe shower then the thermal cut -out will
switch offtheheating elements. The “overheat” light will illuminate to provide a visual indication that this has taken
place. Water will continue to flow and as the water temperature falls the heating elements will be turnedbackon.
Ifthe “overheat” light continues to cycle then increase the water flow rate by turning knob “E” clockwise and check
that the handset does not require de-scaling. If the “overheat” light still continues to cycle, then press button “B” to
the “MEDIUM” power setting (knob “E” will need adjusting).
9. Note that knob “E” IS NOTATAP and does not turn the wateroff.
WARNING:DO NOTSWITCH THE SHOWER ON IF YOU SUSPECTITOFBEING FROZEN.
WAIT UNTILYOU ARESURE IT HASTHAWEDOUT
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5. Fit the front coverbackinto position making sure that the control knob is
aligned correctly with the flow valve (see diagram10).
Ifcontrolknob drive is removed the mask mechanism needs re-
aligning.
Turn flowvalve fully clockwise, position maskto cover all the lights and
then replace drive in position shownin diagram10.
Checkthat when the flow valve is turned fullyanti-clockwise that all
lights are visible.
When re-fitting the cover, startbylocating the outlet“tang”around the
recess for the outlet pipe, and then “roll”the front cover over the control
knob and onto the top of thebackplate.
Secure withtop and bottomfasteningscrews.
6. Operate the showerfirst without the handset to flush out particles, fit the
handset and then operate the showeras on page 2 and check:
a. Thatthewater gets to a satisfactorytemperature.
b. Waterflow can be adjusted byknob “E”.
c. Power selection does give a change in water temperature and
power lights illuminate.
d. Check again for leaks
e. Thatthe holes in the spray plate are not blocked
7. DEMONSTRATEOPERATIONTOUSER
Additional Accessories
White 2 metre ShowerHose Catalogue No. 83-593529
WRAS listed Water Isolating Valve Catalogue No. 93-792452
Curtain and Rail Pack Catalogue No. 83-792802
Curtain and Rail Packwith Non-Slip Mat Catalogue No. 83-792801
Spares
Front Cover Assembly Catalogue No. 93-593572
Handset Catalogue No. 93-593571
PCB / Bracket Assembly Catalogue No. 93-590770
Solenoid Catalogue No. 93-590722
Spare 1.25mlong Chrome Shower Hose Catalogue No. 93-797641
Spare parts/accessories can besupplied against any Credit or Debit cards from
CredaSales Hotline [phone].
This appliance is not intended for use bypersons (including children and theinfirm) with reducedphysical,
sensory or mental capabilities, or lack of experience and knowledge, unless they havebeen given
supervision or instruction concerning use ofthe appliance by a person responsible for their safety.
Childrenshould be supervised to ensure that they do not play with the appliance.

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b. Plumbing
The heatermust be connected to the mains cold water supply. This musthave a minimumrunning pressureof 69kPa
(0.7 bar, 10 psi) and amaximum pressure of 690kPa (7.0 bar, 100 psi).
Before connectingthe pipe work to the shower, ensure that pipe work is flushedout.
1. Itis recommended that a WRAS(WaterRegulations AdvisoryScheme) listed isolating valve is fitted to the incoming
mains cold waterbefore the shower unit. This will allow the unit to be serviced or exchangedwithout having to turn
off the water at the water stop valve.
2. The heatercan befedfrom a header tankprovided this has a minimumhead of 7 metres (23ft).
3. Ø15mmcopper or stainless steel pipe should be used.
To avoid cross threading, DO NOT REMOVE the brass nutfromthe elbow when positioning the pipe.
Iftop entryisrequired, 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 i nto the rear
channel.
In multiple, correct pipe worksizes should be calculated to maintain adequate flow to each shower.
4. Itis permissible to use a WRAS(WaterRegulations AdvisoryScheme) approved sealant sparingly whilst avoiding
excess finding its way intothe shower operating parts.
5. With isolating valve connected, flush the pipe work throughto remove anyparticlesetc,before making the final
connection to the shower. Blockage in the water ways(particularlythe handset and solenoid valve) will prevent the
heater working properly. Note: You may be charged for a service callifit isdue to incorrect installation.
6. The showerisdesigned to have an open outlet andshould onlybeused with ”Creda” recommended fittings.
Donotconnect the handsetuntil after the showerfront cover and cornersection are fitted.
WARNING:DO N
OTFIT A TAPONTHE SHOWER OUTLET.
TAKECARE TOAVOID RESTRICTING THE OUTLET OF THE PRESSURE RELIEF DEVICE
c) Electrical
The electrical installation must be inaccordance with the current BS.7671 (IEEWiring Regulations) and Part “P”of the
Building Regulations.
1. The showerisdesigned fora single phase AC electrical supply.
Please checkthe rating plate ontheunit to see what details apply to yourunit.
AS A
GUIDE ONLY(*Only applies if external earth impedance is less than 0.35 Ohms)
Rating CableSizes
Fuse /MCB
Cable Length
6.0mm²
10.0mm²
40A Type B MCB 21mMax.
35mMax.
8.5 /7.8kW 240 / 230V
and
9.5 /8.7kW 240 / 230V
.6.0mm²
10.0mm²
45A BS.1361 fuse 12mMax.*
21mMax.*
10.5 / 9.6kW 240 / 230V 10.0mm² 45A BS.1361 fuse 12mMax.*
Remember to upgrade the cable if it runs in thermal insulation in a loft,orforalonger distance.
2. A means for disconnection in allpoles mustbe incorporated in the fixed wiring in accordance with the wi ring rules.
We recommend a ceiling switch mountedin a convenient position.
3. Cutbackcable as in diagram9. Connectcable to terminalblockmaking sure that all the retaining screws are
VERY tight and that no cable insulation is trapped under the screws.
4. WARNING:THIS APPLIANCE MUST BE EARTHED
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Howyour Creda Shower Works
Your shower is designedfor convenience, economy and safetyof use.
1. Waterisheated instantaneouslyas it flows over the heating elements in the coppercylinder(diagram2)
2. The required water temperature is achieved by adjusting the rate of water flow.
Diagram3 shows the principle involved in relating temperature rise to flowrate.
The higher the water rate the lowerthe temperature rise and vice versa. The temperature
of the water supplied fromthe mains can varyconsiderably throughout the year from5 to
20°C.This means that in the winter,flowrate will be less than in the summerto achieve
the same outlet temperature.
In summer the “MEDIUM” powersetting maygive adequatehotwater.
3. The heaters are onlyswitched onwhen sufficientwateris flowing.
This is done automaticallybyaswitch which works on waterpressure.
4. The water is turnedon andoff bythe solenoid valve built into the shower.
This is switched on bybutton “A”,“B” or “C”.
5. The flowof water is automaticallyheld at thelevel set by the usereventhough the supplypressure mayvary
(See “Howto use your shower”note 6).
6. Ifthe water supply falls below a setlimit, the pressure switch will operate andswitch off
the power to the elements. Thisisindicated by the “low pressure” light illuminating
(see “Howtouse yourshower” note7).
7. As a furthersafeguard, athermal cut-out switches the poweroff if the water
temperature climbs above the setlimit and the “overheat” light will come on.
This cut-out gives an audible click when switching off,butwill reset itself if cold water is
run through the showerfor 10 to 20 seconds, and the “overheat” lightwill go out.
8. The pressure relief device is to safeguardagainst abnormalpressure conditions,and
provides a levelof appliance protectionshould an excessive build up of pressure occur
within the shower.
9. Thereare a number of defined spray plate setting modes (patterns)adjustable by
rotating the spr
ayplate (seediagram4).
These modes (patterns)have a positive clickto identifythem.
The spray platerotates through a full circle (360°).
IN ORDER TO MAINTAINTHE PERFORMANCE OF YOURSHOWER,
YOU MUST CLEAN THE SHOWERHEAD REGULARLY.
All watercontains particles of lime-scale, which build up in the showerhead and unit
reducing theperformance. It istherefore importanttoclean the showerhead bysimply
rubbing the rubbernozzles, or soaking in a proprietary lime-scale remover and rinsing
thoroughlybefore use.
NOTE: Afteruse it is normalfor some water to drip fromthe showerhead fora few
moments. This inhibits scale build-up overprolonged use.

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What to do if things go wrong
SELF HELP
Ifthe shower is notworking satisfactorily, make the following checks before calling outthe contractor.
Any one ofthese adjustments could restore the performance.
a) The shower cycles
fromHOTtoCOLD The shower temperature is set too hot causing the thermalcut-out (safetydevice)to operate. Turnknob “E”clockwise to increase water flow.
“MEDIUM” setting mayneed to be selected.
Slowly increase the watertemperature by turning knob “E”anti-clockwise until a comfortable
showering temperature has been reached.
You MUSTWAITapprox’ 20seconds foreach adjustment to affect the watertemperature.
b) Water too HOT Increase water flow by adjusting the temperature control clockwise.
Clean showerhead holes. Select outer orcombination spraypattern.
Switch power to “MEDIUM” setting. Increase pressure to water supplye.g. fully openservice
valve or stop cock. Checkhose is not kinked restricting the waterflow.
c)Water too COLD Decrease waterflowbyadjusting the temperature controlanti-clockwise.
Select inner orouterpattern only. Switch power to “HIGH” setting.
d) Spray pattern poor Clean showerhead and flush heater.Selectouter/inner only.
e) Water goes cold
while using
shower
Checkpowersetting lights are on.
Checkwater pressure has notfallen so faras tolet pressure switch cut out,
e.g. Another tap drawing wateroff, indicated by “low pressure” light on.
Raise position of handset.
f) Broken parts Please contact our spares department on0844 372 7750. Fitting instructions are provided
PROFESSIONALSERVICE
Ifthe above checks fail to restore the performance, you should seekprofessional help.
The person who installed the shower is probably the best one investigateand correct it, andis certainlythe person to
contact if youhave had a problemin the guarantee period.
The following additionalchecklist is provided forthe benefit of the qualified service person.
WARNING: SWITCH OFF THE ELECTRICITY ATTHEISOLATOR BEFOREREMOVING THECOVER TO MAKE CHECKS
a) Water too HOT Water flow restricted by blockage in filterof solenoid valve. Switch offwater, loosen inlet
connection to solenoid, remove filterin solenoidwith long nosed pliersand flush clean.
b) Water too COLD Checkcircuit through thermal cut-out.
Checkcircuit through microswitches on the pressure switch.
Checkeach element circuit.
Checktightness of electricalconnections.
c)Water discharges
frompressure
relief valve
Checkforcause of high pressure and remove it.
Blockage on outlet e.g. blocked showerhead.
Replace the pressure relief disc (not covered byguarantee).
d) Water does not flow
when button “A”,
“B”or “C” is
pressed.
Checkcircuit through solenoid coil. Ifdefective then replace.
Checkcircuit through microswitches. If defective then replace.
Possible PCBfault.If defective then replace.
Power supply not reaching shower.
Creda After Sales Service
We offera technical advisoryservice on the telephoneto contractors
and other customers with problems in the field.RING 08443727766
Spare parts can be supplied against Credit or Debit cards. RING08443727750
Remember to quote the exact type of shower,as written on the frontface.
The model and serial number are located on the bottomface of the shower.
Make a note of those numbers, and quote themif you call for advice.
Model No: 53-………………….. / Serial No:………………………
Note: You may be charged for a service call ifyou do not havea serial number.
Howto maintain yourCreda Shower
It is recommend thatthe shower unit, riser rail,hose etc. be cleaned using
a soft cloth and thattheuse of abrasive or solvent based cleaning fluid be
avoided, especiallyon anyplated finishes.
We recommend that before anycleaning, the isolating switch be turned off,
thus avoiding accidentally switching on the shower.
The showerhead should beperiodically cleaned as detailed on page 3.
YOU MUST REGULARLYINSPECT THE SHOWER HOSEFOR WEAR AND DAMAGE.
REPLACE IF NECESSARY, OR EVERY TWO YEARS, WITH OURAPPROVED PART.
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Installation Instructions
ALL WIRINGAND INSTALLATION MUST BE SUPERVISED BYAQUALIFIED ELECTRICIAN
WARNING:DO NOTINSTALL THIS SHOWERINAROOMWHEREIT MAY BESUBJECT TO FREEZING.
We recommend that theinstallation is done in the followingsequence.
a. Fixing the showerto the wall
b. Plumbing
c. Electrical connections
a. Fixing the shower to thewall
1. Position theriser rail at convenient height formajorityof users as recommended in diagram6 and markits position
2. Position the heaterso that the top oftheunit is horizontal and level with,
or up to 0.6 metres (2ft) maximum below the topof the riser rail. Choose a
flatpiece of wall to avoid the possibilityof distorting the backplate thus making
the front cover a poorfit.
3. Adjust the position to get the most convenient arrangement taking the following
into account.
•The possible need to use the handsetover the sink for hair washing etc.
•The heater must notbe mounted in the directspray from the handset.
•The handset must not be able to comeinto contact with used water in the
cubicle, bath orbasin. If it can, even afterthe hose has been retained by the
soap dish (see diagram11), then a vacuumbreaker must be fitted. Itshould
be noted that these devices are liable to minor leakage so they mustbe
positioned so that anydripsare not detrimental.
4. Fix the riser rail with screws provided. The fixing holes at thebase of the
brackets will be disclosed byremoving the plastic fronts. Assemble as shown in
diagram11. Additional “knock-out” slots are available if required to improve
security.
5. Decide the position of the electricalcable to the unit.If top or bottomentry
is chosen (according to diagram5), cut awaythe walls in the backplate as
shown in diagram7.
6. Decide the position of entry of the cold waterpipeinto the unit.
Iftop,cutaway the backplate.
Ifrear, please read thesection on plumbing.
If bottom,remove the frontcover (complete with knobs) and cut awaythe
detachable corner sectionas shown,
7. Ifyou have not yet done so, remove the front cover(complete with knobs)
of the unit by undoing the retaining screws at the top and bottomof the
unit and lifting the cover off.Your showerisprovided with 2 fixing
positions in the backplate (see diagram5).
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 with head protruding about10mmfromthe wall and
hook the backplate over the screw head. Thisallows for correct and
accurate alignment of your showerbeforemarking andfixing the bottom
position.
You may not wish totighten up both screws at this stage as the holes are
elongated to allowfor adjustment after other connections have taken place.