Elson EBW25 Guide

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Please read and understand these instructions before starting work.
Please leave this leaflet with the user following installation.
WARNING
This boiling water heater must only be installed by
qualified persons.
36006232 Issue 2.
Elson 2.5 litre Boiling Water
Dispenser
Installation and User Instructions
Model: EBW25
PACK CONTENTS
Heater, fixing screws and plugs, installation and user
instructions.

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Thank you for purchasing an Elson EBW25. The boiling water heater is manufactured
to the highest standards and has been designed to meet all the latest relevant safety
specifications.
This Elson water heater must be installed (Sections 1-5, p.1-8), commissioned (Section
6, p.9) and maintained (Sections 7-8, p.7-11) by a competent person. Please read and
understand these instructions prior to installing your Elson water heater. Following
installation and commissioning the operation of the heater should be explained to the
user (Section 10, p.14) and these instructions left with them for future reference.
This appliance can be used by children aged from 8 years and above if they have been
given supervision or instruction concerning use of the appliance in a safe way and if
they understand the hazards involved. Cleaning and user maintenance shall not be
made by children unless they are older than 8 and supervised. Keep the appliance and
its cord out of reach of children aged less than 8 years.
Appliances can be used by persons with reduced physical. sensory or mental
capabilities or lack of experience and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe way and understand the hazards
involved.
INTRODUCTION

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COMPONENT CHECKLIST
Before commencing installation check that all the following components have been sup-
plied with your Elson heater.
• Wall mounting bracket
• No.12 x 2” screws (2 off)
• No.8 x 1” screw (1 off)
• No.12 x 2” wall plug (2 off)
• No.8 x 1” wall plug (1 off)
• 15mm x 15mm straight push-fit connector (fitted)
• 15mm x 15mm 90 ° elbow push fit connector (fitted)
CONNECTIONS
Inlet connection -15mm ext. diameter
Water entry point - bottom and rear
Cable entry point - bottom and rear
ELECTRICAL
Model numbers
2.5kW - Elson EBW25 - 93 200 001
Electrical rating 2.3/2.5kW@230/240V
Nominal capacities Model EBW25 2.5 litres
Weight (full) Model EBW25 8.4kg
Rated pressure
Minimum supply pressure 0.05MPa (0.5 bar)
Maximum supply pressure 1.0MPa (10 bar)
Enclosure rated IP X2
Nominal commissioning times (minutes) to temperature ready
Model EBW25 16
STANDARDS AND APPROVALS
Complies with the requirement of EN 60335-2-35.
Nemko approved for electrical safety.
Complies with European Community Directives (CE).
Complies with UK water regulations, kiwa approved.
TECHNICAL SPECIFICATION

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1.1 The Elson EBW25 stores and dispenses water at or close to boiling point at all
times it is switched on. Due caution must be taken when choosing a location
for the product to minimise misuse. Locate the unit over a draining board
NOT over the sink or basin.
1.2 Push fit connectors DO NOT grip chromed or stainless pipe.
1.3 The EBW25 is a vented water heater. The vent pipe must never be
blocked or obstructed, it must be a minimum of 15mm outside diameter
pipe. Where the vent pipe length exceeds 3m the pipe diameter should be
increased. The vent pipe must be laid to a continuous fall and discharge in
a safe and visible position; it must discharge via a tundish or finish a
minimum of 20mm above a draining board. The vent pipe material must
be capable of conveying boiling water. The vent pipe must never be
connected directly to a soil pipe.
1.4 Wherever possible the EBW25 should be supplied directly from a rising
main. If fed from a cold water feed cistern, the cistern must comply with the
Water Regulations Guide (clause R27.2). It should be noted that water
quality may be reduced when supplied from a cistern and additional forms of
water pretreatment may be necessary.
1.5 In hard water areas, heated water will produce lime scale which will be
deposited within the heater. If this is not regularly removed it will impair the
operation of the heater. Where rapid and excessive scale build up is likely to
occur the use of a proprietary scale reducing device may be beneficial.
1.6 The installation must be carried out in accordance with the relevant
requirements of:
• The appropriate Building Regulations either The Building
Regulations (England & Wales), The Building Regulations (Scotland) or
Building Regulations (Northern Ireland).
• The Water Fittings Regulations or Water Byelaws in Scotland.
1.7 The EBW25 will adjust for ambient (room) temperatures of between 1°C and
40°C.
1.8 When not in use care must be taken to prevent it freezing; if thought to be
frozen it must not be switched on. It must be left to thaw and must then be
thoroughly inspected to ensure it is totally thawed and undamaged.
1.9 The unit is not suitable for installation in an area where a water jet could be
used.
1.0 IMPORTANT INSTALLATION POINTS

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2.1 The EBW25 must be vertically wall mounted using the bracket supplied.
2.2 Figure.1 (p.6) details the outside dimensions of the EBW25 unit. It is
recommended that the unit is positioned above the draining board. If this is not
possibleconsiderationshouldbegiventoanyspillagesthatmayoccurunderthe
appliance. The heater should be positioned at a height to suit the items being
filled (flasks, pans, cups etc.). This is likely to position the base of the unit
250mm above the work surface.
2.3 Sufficient room should be left around the heater for access for maintenance
and servicing. The top should not be covered as this will reduce the efficiency
of the EBW25.
2.4 Ensure that the wall can support the full weight of the unit (see TECHNICAL
SPECIFICATIONS, p.3) and that there are no hidden services (electricity, gas
or water) below the surface of the wall.
2.5 Using the backplate mark the fixing positions and water and vent entry points.
Drill and plug the fixing positions. Fix the mounting bracket to the wall using
the two No. 12x2” screws provided (confirm suitability of all screws and plugs
for use with the wall, if unsuitable due to wall type provide alternative fixings)
2.6 If rear entry services are to be used the necessary holes for these should be
prepared prior to hanging the unit onto its bracket.
2.7 Remove the front cover by unscrewing the top and bottom cover fixing screws
bottom and top. Hang the EBW25 onto the wall mounting bracket. Secure
anchor point to the wall with the No.8 x 1” screw (provided).
2.0 INSTALLATION - MOUNTING

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30
C
G
F
E
D
B
A
250mm approx
Worktop
Figure 1 H
J
I
L
MN
Fixing
Bracket
Fixing
Hole
MODEL ABC D E F G H
INLET VENT INLET/
VENT CABLE ENTRY
EBW25 445 290 190 85 115 101 49 46
DIMENSIONS
(
mm
)
INLET/
VENT
K
O
FIXING
POINT
EBW25
CABLE
ENTRY FIXING
POINT
IJBRACKET BRACKET BRACKET OUTLET
KLMNO
59 96 50 342 52.5 169 152

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3.1 Select appropriate push fit connector for chosen entry position:
Bottom entry water - 15mm x 15mm 90º elbow.
Rear entry water- 15mm x 15mm straight.
Note: Stainless or chromed pipes DO NOT provide secure connections with
push fit fittings (use copper pipe at joints).
3.2 Push the connector fully home (28mm engagement) onto the solenoid valve
inlet spigot. To remove a push fit connector the collar (collet) should be pushed
towards the body of the fitting whilst pulling the connector off the pipe.
3.3 If the inlet pipe run is horizontal and beneath the unit ensure it does not prevent
access to the case screws.
3.4 Connect the inlet pipe to the push fit connector ensuring it is fully pushed home
(28mm engagement). After connection DO NOT make soldered joints in the
pipe work close to the heater, as the heat may damage the connector or the
water heater itself.
3.5 A WRAS listed isolating valve should be fitted to the cold supply to facilitate
servicing the heater.
3.6 Push fit connectors are supplied to allow either bottom or rear entry of services.
3.0 INSTALLATION - WATER SUPPLY
4.0 INSTALLATION - VENT PIPE
4.1 Select appropriate push fit connector for chosen entry position:
Bottom entry vent - 15mm x 15mm straight
Rear entry vent - 15mm x 15mm 90º elbow
4.2 Push the connector fully home (28mm engagement) onto the vent pipe
connection.
4.3 Connect the vent pipe to the push fit connector ensuring it is pushed fully
home (28mm engagement). Refer to the vent pipe requirement detailed in
IMPORTANT INSTALLATION POINTS (p.4). If a bottom entry vent pipe is used
the pipe must terminate below the unit, in a safe visible position. After
connection DO NOT make soldered joints in the pipe work close to the heater,
as the heat may damage the connector or the water heater itself.

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5.0 INSTALLATION - ELECTRICAL REQUIREMENTS
WARNING:
5.1 This appliance must be earthed.
5.2 The installation, supply cable and circuit protection must conform to the latest
BS7671 ‘Requirements for electrical installations’ (IEE Wiring Regulations).
5.3 The appliance must only be connected to a 230/240 V ac supply. A double pole
isolating switch, with a contact separation of at least 3mm in each pole, must
be incorporated in the electrical supply. The supply should be fused 13Amp.
5.4 If the EBW25 is to be unused for significant periods of time running
costs can be reduced by switching the unit off. It is recommended that this is
done automatically by incorporating a suitable timeswitch in the supply to the
unit. The use of accessory no. 95 970 124 is recommended. The timeswitch
can then be set to switch the unit on for a suitable period to allow it to heat up
before it is next to be used. Note: A timeswitch must be capable of switching
13 Amps resistive load.
ELECTRONIC CONTROL
L
Figure 2: Wiring Diagram (2.5kW)

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6.1 The electronic control system of the EBW25 has a self commissioning and
calibration function. Once the heater is installed and all services have been
connected the appliance should require no further adjustment before use.
6.2 Check that all electrical, water and vent pipe connections have been made and
are secure.
6.3 Replace the cover and secure with the fixing screws. Ensure the tank discharge
tube is centrally located in the outlet spout. Turn on the water then the electrical
supply.
6.4 The LED indicator will flash to indicate the unit is in its “self commissioning”
mode. The water in the unit will not be hot enough to use at this stage (do not
draw water off).
6.5 The LED indicator will continue to flash until the unit has reached boiling
and has “self-calibrated”. At this point the LED indicator will remain
illuminated. If for any reason the calibration procedure is interrupted it will
restart after a short delay but may result in the calibrated temperature being too
low. If this occurs switch the electrical supply OFF for several seconds and
then switch ON. The calibration sequence will reset. Wait for the LED
indicator to remain illuminated.
6.6 The unit is now ready to use, however, it is recommended that the first few fills
be drawn off and discarded to ensure the freshness of the water.
6.7 The tap sealing washer pressure has been already set. If the tap drips after
commissioning adjust the spring tension so that the handle is just loose.
a) Remove the tap bezel after removing the two screws securing it.
Note: To remove the bezel the handle will have to be operated. This will cause
water to discharge from the outlet (see Page 13, item 10).
b) Tighten the tap headwork nut (turn clockwise) until the handle is just loose.
Replace bezel and securing screws.
Note: Excessive adjustment will dismantle the tap, if heated this would result in
the uncontrollable release of boiling water (see Page 13, item 7).
6.8 Check for leaks.
6.9 IMPORTANT NOTE: Each time the unit is switched off then switched on it
will always go through the same cycle 6.4-6.5. Water should never be drawn
off the unit until commissioning is complete and the LED indicator remains
constant.
6.0 COMMISSIONING

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Note: Maintenance must be carried out by competent persons.
Competent - i.e. Trained, experienced, qualified.
Disconnect the electrical supply before removing the cover.
WARNING: Electronics control by switching ‘n’ (neutral), in some instances
neutral terminations will be at 230 volts with respect to earth.
7.1 The EBW25 incorporates an electronic scale conditioning function
which will reduce the rate of scale deposition in hard water areas.
However, some deposits may still occur in the storage tank; these should
be periodically removed.
7.2 The amount of usage of the unit will also determine the quantity of
scale build up. A regular inspection of the tank every 6 to 12 months
will provide longer life of the product and optimum performance (removal
of the steam plate assembly will give access to the storage tank) .
7.3 The front cover and spout will require a periodic wipe to clean any
marks/splashes from use.
7.0 MAINTENANCE

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8.0 FAULT FINDING
Your Elson EBW25 should give trouble free operation, however should a fault occur, the
table below should allow most faults to be identified. Fault finding should only be carried
out by a competent person.
For any faults that cannot be identified using the Fault Finding chart please contact the
Elson After Sales Service, telephone [phone], fax [phone].
SYMPTOM POSSIBLE CAUSE ACTION
No indicator
lights 1. If no water or heat - no power to unit
2. If hot water available
- no power to indicator
diodes
1. Check power supply is correctly
connected and switched on and the
primary cutout has not operated.
2. Check connections to indicators at 4
way plug
Water flows
from vent and
primary cutout
operates
1. Solenoid valve fault
2. Level sensor fault
3. Electronic control fault
4. Low water pressure
1. Check operation of solenoid valve.
Replace if necessary
2. Check level system
3. Check connections to electronic
control. Replace if necessary
4. Increase inlet pressure
Steam from
vent pipe and
primary cutout
operates
1. Control thermistor fault -
open circuit
2. Electronic control fault
3. Scale build up
1. Check continuity (5Kohms at 100°C)
2. Check connections to electronic
control. Replace if necessary
3. Descale unit
Drips from
outlet 1. Incorrect spring tension
2. Scale: Debris under tap
seal
3. Damaged tap seal
4 Scale on tap outlet spout
1. Ensure tap headwork nut correctly
adjusted
2. Remove and clean as necessary
3. Replace tap seal
4. Clean tap outlet
Water “runs
on” when tap
released
1. Scale on tap outlet spout
2. Scale debris under tap
seal
3. Damaged tap seal
1. Clean tap outlet
2. Replace and clean as necessary
3. Replace tap seal
Stale taste to
water Unit left unused for several days Empty and allow to refill before use
Tap sticks
open Dirt around handle pivot Clean with a stiff paint brush

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9.0 SPARE PARTS
The following comprehensive list of spare parts is available for your Elson EBW25
water heater. Please refer to the rating label on the right hand side of your heater
before ordering to ensure the correct spare parts are obtained.
Do not replace with parts not recommended by Elson - this will invalidate your
guarantee and may render the installation dangerous.
1. Element assembly (incorporating start dry cutout)............................. 95 607 952
2. Element assembly sealing gasket........................................................ 95 611 816
3. Primary cutout (vent pipe)...................................................................95 612 001
4. Solenoid valve assembly......................................................................95 605 877
5. Level sensor assembly.........................................................................95 606 971
6. Circuit board ......................................................................................95 615 007
7. Outlet tap headwork (inc. handle)....................................................... 95 605 071
8. Outlet tap stem.....................................................................................95 605 832
9. Outlet tap cup seal............................................................................... 95 611 731
10.Bezel for tap & cover...........................................................................95 605 072
11. Cover assy & screws .......................................................................... 95 614 309
12.Condenser sealing gasket ....................................................................95 611 817
13.‘O’ring kit...........................................................................................95 611 002
14.Manifold assy 2.5ltr.............................................................................95 607 206
15.Outlet spout plastic - tank....................................................................95 604 668
16.Outlet spout - cover............................................................................. 95 604 001
17.Push fit connector 15x15 straight........................................................95 607 509
18.Push fit connector 15x15 elbow.......................................................... 95 607 510
19.Tank ....................................................................................................95 608 926
20.Tank drain & seal.................................................................................95 608 929
21.Start dry cutout (element)....................................................................95 612 691
22.Solenoid valve coil..............................................................................95 605 839
23.Fitting kit 2.5ltr Model (not pictured)................................................ 95 607 024
24.Wiring harness 4-way (not pictured)...................................................95 612 006
25.Wiring harness complete (not pictured).............................................. 95 607 209

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3
4
5
6
1510
11
789
12
14
14
13
17 1914 20 21
22
16
18
Figure 3: Spares

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10.1 Once installed the filling and the heating cycles of the Elson EBW25 are
completely automatic.
10.2 To dispense water, place a suitable container under the outlet spout and pull
the tap handle down and towards (or pushed away) the user. The water
dispensed will at all times be boiling or close to boiling point so due caution
must be taken when using the product.
10.3 The tap handle is spring loaded so that when released it will spring back to the
“off” position (no flow).
10.4 The Elson boiling water dispenser is fitted with two neon indicators. The upper
red LED indicates POWER ON. The lower LED indicates TEMPERATURE
READY. When the LED is flashing, the unit is commissioning (DO NOT DRAW
OFF WATER). When the LED is continuously on, the unit is ready to be used.
10.5 If the store of hot water is completely withdrawn, the flow rate from the outlet
tap will reduce to the filling rate of the heater (leave for 2 minutes before
drawing any more water off). This slow flow rate allows the incoming water to
be instantly reheated, it does not indicate a fault with the water heater.
10.6 If the unit is not used for a few days the water may become “stale”. In
these instances it is advisable to draw off the contents and discard the water
at least twice to remove the “stale” water. This will ensure that “freshly” boiled
water is used to make your drinks etc.
10.7 Similarly, if left unused it is possible that some scale residue will collect in the
outlet tap. This will cause the outlet water to appear “milky” for a short while.
If this condition occurs it is recommended that the first few cups are drawn off
and discarded.
10.0 USER INSTRUCTIONS

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This product is guaranteed against faulty materials and manufacture for a period of two
years from the date of purchase provided that:
1 The unit has been installed by a competent person in accordance with the
Installation, User Instructions, all relevant Codes of Practice, Regulations in
force at the time of installation and that all necessary controls and safety
valves have been fitted correctly.
2 Any valves and controls are of the Elson recommended type and specification.
3 Theappliancehasnotbeenmodifiedortamperedwithinanyway, and has been
regularly maintained as detailed in the Installation and User Instructions.
4 The appliance has been used only for heating potable water.
The appliance 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 Elson is one of continuous product development and, as such, we reserve
the right to change specifications without notice.
Environmental Information
Elson 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.
Guarantee

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Spares Stockists
Fifers Lane, After Sales Service
Norwich, Tel: [phone]
Norfolk, NR6 6XB. Fax: [phone]
www.elsonhotwater.co.uk Service Email: elsonservice@
heateam.co.uk
© 2013
Electric Water Heating Co.
2 Horsecroft Place, Pinnacles,
Harlow, Essex CM19 5BT
Tel: [phone]
E-mail: [email protected]
SPD
Special Product Division, Units 9 & 10
Hexagon Business Centre,
Springfield Road,
Hayes, Middlesex UB4 0TY
Tel: [phone]
Parts Center
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]
www.uk-spares.com
Advanced Water Company Ltd
Unit 5D, Enterprise Way, Vale Park,
Evesham, Worcestershire WR11 1GS
Tel: [phone]