RED-RING WS7-EcoT Service manual

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Full details of terms andconditions are available on requestfrom: -
APPLIED ENERGYPRODUCTSLIMITED,
MORLEY WAY, PETERBOROUGH PE2 9JJ
TEL [phone]/ FAX:[phone]
Website: www.applied-energy.com
(A4 Leaflet No. 578-2018-12a)
Point of Use Water Heater
Installation & Instruction Manual
THIS APPLIANCE IS NOT INTENDEDFORUSE BY PERSONS
(INCLUDING CHILDREN)WITH REDUCED PHYSICAL, SENSORY OR MENTAL
CAPABILITIES, OR LACK OFEXPERIENCE AND KNOWLEDGE, UNLESS THEY
HAVE BEENGIVEN SUPERVISIONOR INSTRUCTION CONCERNING USE
OF THEAPPLIANCEBYA PERSONRESPONSIBLE FORTHEIR SAFETY.
CHILDREN SHOULD BE SUPERVISED TOENSURETHAT THEY
DONOT PLAY WITH THEAPPLIANCE.
These instructions should be read in full before commencing the installation.
We recommendthat the installation shouldonly be carriedout bya suitably qualified
person.
The Redring WS7-EcoT heater is an open outlet, thermalstorage water heater for use
with Redring recommendedfittings for one outlet only.
Itoperates on the displacement principle i.e. when coldwater is admittedintothe
bottom of the tank, hot water flows outthrough the outlet.
Installation
We recommendthat this unit should be installed in the following order:
1. Fit wall bracket.
2. Fit mains electrical cable to the unit.
3. Fit heater tothe wall.
4. Connect plumbing to the unit.
5. Replace the front cover.
6. Fill the unit with water andcheck for leaks.
7. Connect mains electrical cable tothe fixed wiring.
8. Set the weekly mechanical timer.
9. Turn unit on andcheck operation.
10.Demonstrate operation to user.
Please Note:-
When removing the frontcover,we recommendthat you firstremove the two top fixing
screws, but only LOOSEN the two bottom screws.
This will aid when replacingthe frontcover duringinstallation.

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Fixing (see Diagram 1)
The wall bracketshould be securely fixed in position.
The heater is then hungon the wall bracket.
Further security can be obtainedby marking the position of the extra fixingholes as
shown and applying appropriate wallfixings tothese positions.
When the unit is used above the sink with the cold inlet tapand spout supplied, it is
recommended that these extra fixing positions be used.
The bottomof the heater should be approximately350mm above the top of the sink.
The outlet shouldbe atleast13mm above the maximumpossible water
level for any unit that is to be filledfromthe heater.
Electrical Connection
The installation mustbe in accordance with the current BS7671 - IEE Wiring Regulations
and“PartP” of the BuildingRegulations.
WARNING: THE UNIT MUSTBEFILLEDWITH WATER
BEFORE POWER IS SWITCHEDON.
1. The heater is suitable for 240/230Vsingle phase A.Csupply.
2. The live (brown) andneutral (blue) wires must be connected
to the designatedpositions in the terminal block and the
earth (green/yellow) tothe earth position.
3. WARNING: THIS UNIT MUST BE EARTHED
4. The mains cable should be preparedas shown (see Diagram 2)
5. Ameans for disconnection in all poles mustbe incorporated in
the fixed wiring in accordance with the wiring rules.
6. The cable shouldbe heat resisting 3-core flexible PVC of 1.25mm² minimum.
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InstallationEngineerNote:
The most likelyreason for no heated water isan open circuit thermal fuse.
See label on frontinsulation for details.
This can be caused at initial commissioningif the heating element is energized with no
water in the tank.
Alternatively,it may be due to a back siphonage in the coldwater supply caused by a
break or disconnection.
If you feel that your installation may suffer from a water failure,we recommend the
fitting of a non-return water check valve.
After Sales Service
We offer a technical advisory service on the telephone to contractors and other
customers with problems in the field.
Ring: 0844372 7766
Fax: [phone]
Remember to quote the exacttype of unit, as written on the frontof this leaflet.
Itmay also be of use to have a note of the model and serial number as statedon the
underside of the unit.
Common Spare PartsandRecommendedAccessories
The fitting of Spare Parts mustbe supervised bya suitably qualified person.
Common Spare Parts Recommended Accessories
Thermal Fuse CatNo. 94-780456 Swivel Arm (450mm) CatNo. 84-780404
7-Day Timer CatNo. 94-780457 Swivel Arm (600mm) CatNo. 84-780405
FrontCover Assy CatNo. 94-780458 MonoblockMixer Tap CatNo. 84-780408
Common Spare Parts and Recommended Accessoriescanbe suppliedfrom
RedringSales Hotline (RING)0844 372 7766 or (FAX) 0844 3727767
Circuit Diagram

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WARNING: THE UNIT MUSTBEFILLEDWITH WATER BEFORE POWER IS
SWITCHED ON. FAILURE TO DOTHIS MAY RESULT IN THEHEATING
ELEMENT BECOMING TOO HOT,CAUSING THEONE-SHOT SAFETY
THERMAL FUSE TOOPERATEAND MAY INVALIDATEYOUR
GUARANTEE.
Settingupthe temperature thermostat
The four settings indicatedby the temperature thermostatare: -
III This gives very hot water, which can be mixed with cold water to produce quantities
of usable water greater than the actual capacity of the heater.
II This settingwill deliver,direct water suitable for washing up.
IThis settingwill deliver,direct, water suitable for hand washing.
•This settingwill maintain the water in the heater justabove freezing point if the
heater is tobe left unattendedwhilstsubjecttofreezing conditions.
The electricity mustbe left on for this facility, and the mechanical programmer
mustbe in the “ ” setting.
Water expands when heated,thus duringthe initial heatingof cold water admittedto
the heater, drips from the outlet spout may occur.
If itis required that the adjustments of the thermostat is notavailable to the users of
the heater, then after first establishing that the temperature is as required, the knob
may be removed and the blankinggrommet(supplied free with heater)inserted in the
hole.
This grommet is a relatively loose fit, and can be made more secure bythe use of
suitable silicone sealant or PTFE tape etc. (not supplied).
Draining the Tank
If itis required todrain the tank,this can be effectedby undoing the screw in the base
plate of the heater (see “TankDrain” Diagram 3),and catchingthe water in an
appropriate vessel.
We recommendthat the water in the heater is left to cool, or that anyhotwater is run
through the heater before commencingthis operation.
The heater mustbe disconnected fromthe electrical supply before commencing
thisoperation.
Take care to protectthe mechanical programmer from any water.
Ifthe unitfails to heatwater
1. Check that the switchingtime on the mechanical programmer is set to be “ON”.
2. Check that the mechanical programmer is not in the “ ” position.
3. Check that the mains fuses are not blown and that the mains supplyis switchedon.
4. Check that the coldwater supplyis on.
5. Check that the outlet has notbeen blocked in any way.
If the fault persists: -
Contact the dealer from whom you purchased the unit or the installation engineer.
You can also call the “Technical Advisory Helpline” (see “After Sales Service”)
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Water Connection (see Diagram 4 for suggestedinstallationplan)
Oversink (see Diagram 3a)
When usingthe tapandspout as supplied,the coldwater connection ismade directlyto
the Ø15mm compression fittingat the rear of the coldinlet tap.
Ensure that the water flowis in line with the flow direction arrow moulded on the cold
inlet tap.
Undersink (see Diagram3b)
If the unit is tobe mounted below sink level, it MUST be connectedto the special open
outlet Monoblock Mixer Tap as recommended by Redring (see page 7).
The economic performance of the heater will be enhancedby laggingthe hot water pipe
from the heater tothe outlet.
Oversink andUndersink Installation
Before final assembly of the tap the appropriate restrictor insertmustbe selectedand
fitted into the end of the cold inlet pipe on the heater (see Table A).
The correctinsert will ensure that the flowrate of water through the heater isat an
optimum toprevent undue mixingof the incomingcold water with the stored hotwater,
as well as avoiding anyunnecessary pressure within the tank.
Suggested InstallationPlan

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Replacingthe FrontCover (see Diagram 5)
Please Note:-
We recommendthat the frontcover is replacedbefore the unit is filledwith water.
1. To aid assembly,ALL the weekly mechanical programmer tappets should be pushed
to the inner edge of the dial tothe “OFF” period (see Diagram 6).
2. Offer up the frontcover tothe main body, aim tofit the mechanical programmer
through the bezelkeepingthe frontcover square tothe wall.
3. Once the mechanical programmer is engaged into the bezel, adjust the position so
that it is a snugfit over the appliance Backplate.
4. Replace the top fixingscrews (x2), then press the cover at the base while tightening
the bottom fixing screws (x2).
5. Check that the mechanical programmer is free to spin, and the switch is in its
aperture.
6. The appliance can be programmed as described in the “Settingup the weekly
mechanical programmer” section andshown in Diagrams 6and7
7. Fasten the door with the screwprovided.
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Usage
The Redring WS7-EcoT contains an integratedweekly mechanical programmer.
This facilityallows the user to set the heater “ON” and “OFF” periods for each separate
day of the week.
“ON” periods are settable by sliding the timer segments tothe outer position.
The minimum selectable “ON” period is 2hours and20minutes.
Amajor benefit of the Redring WS7-EcoT heater is the energy saving possibilities of
controllabilityand the facility in a commercial installation toset a programme to cover a
weeklyusage pattern includingweekends.
However,the thick insulation containedin the Redring WS7-EcoT heater also ensures
economic running costs if the heater is left on atall times.
Settingupthe weeklymechanical programmer
The dial should be set tothe current time and day.
Rotate the dial slowly in the clockwise direction, until the correct time and day segment
on the dial is approaching the arrowhead shown at the top of the dial.
Note the dial is printed with the 24hour clock.
6.00 am =6on the dial and 6.00 pm = 18 on the dial.
Programming switching times (see Diagram 6)
Set the tappets between the desired “ON” and “OFF” period
required.
ALL the tappets must be pushed to the outer edge of the dial for
an extended “ON” period.
Each tappet switches the output for a 2 hour and 20minute
period.
Settingthe selector switch (see Diagram 7)
“ ” setting.
The heater will operate and heat water as programmed.
The separate water temperature thermostat will control the water
temperature.
“ ” setting.
The weeklyprogrammer is over-ridden.
The water heater is “OFF” and the water will not be heated.
“ ” setting.
The weeklyprogrammer is over-ridden.
The water heater is “ON” andthe separate water temperature
thermostat will controlthe water storage temperature.