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Operating Instructions
IMPORTANT
These instructions should be read carefully
and retained for future reference. Note also
the information given on the appliance.
Automatic Storage Heaters
WARNING - THE SURFACE OF THIS HEATER CAN BE HOT. The surface temperatures of this heater are within the
requirements of EN60335-2-61, the European Standard covering the safety requirements for Electric Storage Heaters, and
momentary contact with any part of the heater should not cause injury. However, in order to be effective, heaters of any type do
get hot, especially around the air outlet grille.
Therefore, if aged or infi rm persons, or young children, are likely to be left unsupervised in the vicinity of a heater
precautions should be taken to ensure that prolonged contact with the heater cannot occur. We recommend that a guard
is fi tted around the heater, as is normal with some types of heating appliances in similar circumstances. A range of guards
specially designed for Dimplex storage heaters is available. If you require further information on these guards, please contact the
Dimplex Help Desk on 0845 600 5111.
This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack
of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person
responsible for their safety. Children should be supervised to ensure that the do not play with the appliance.
CAUTION: DO NOT COVER SURFACES OF THE HEATER AND DO NOT OBSTRUCT AIR OUTLET GRILLES. Surfaces of
the heater should not be covered or obstructed as this can cause excessive temperatures that can be hazardous and may cause
safety cut-outs to operate. For example, do not put clothes, fabrics or any combustible materials on the heater or allow curtains to
come within 75mm (3”) of the top and ends of the heater and do not allow furniture to be pushed up against the heater.
PLEASE NOTE: YOUR STORAGE HEATER IS VERY HEAVY AND MUST BE SECURELY FIXED TO A SOUND WALL.
No attempt should be made to move the heater without fi rst seeking specialist advice. If you are not happy that the heater
has been securely fi xed, please inform your installer. If, during any reassembly of the heater, a part of the thermal insulation
shows damaged or deterioration which may impair safety, it should be replaced with an identical part.
UNDER NO CIRCUMSTANCES SHOULD THE WALL FIXINGS BE LOOSENED ON THIS HEATER BEFORE THE BRICKS
HAVE BEEN REMOVED FROM ITS CORE.
DO NOT SIT OR STAND ON THE HEATER.
DO NOT PLACE OBJECTS IN CONTACT WITH THE HEATER.
IMPORTANT SAFETY INFORMATION
(96515 Iss. 12)
Models XLS12N, XLS18N and XLS24N
Your Dimplex XLSN storage heater stores heat using low tariff, off-peak electricity and discharges it when tariffs are normal. These
operating instructions assume that the correct size of storage heaters have been selected to cater for the heating requirements of the
room.
Setting the Controls
The control knobs have been positioned so that they are clearly
visible to an adult, but out of sight of young children. In this way it
is hoped that they will not provide temptation to a child to alter the
settings.
Domestic Use
The right hand (INPUT) knob should initially be set at the midway
position. If after the fi rst charge period the room temperature is too
high or too low, the position of this knob should be moved to a lower
or higher position as appropriate. The most suitable position should
be found by experience, and the control may be left at this position
without further alteration.
Normally the left hand (OUTPUT) knob may be left on minimum (fully
anticlockwise). This control may be moved to maximum in the evening
if additional heat is required at that time. Return to minimum before
retiring.
Commercial Use
For normal commercial applications a setting of maximum on the
output control will ensure maximum output during working hours. The
input control should be set as described above for Domestic Use.
Should these settings not provide the comfort levels
required, the more detailed instructions overleaf should
be consulted.
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XLSN Storage heater - Principle of operation
Your XLSN heater consists of a core of high density heat
storage bricks surrounded by a carefully designed insulating case.
During off-peak periods elements within the brick core heat up the
bricks to a temperature level determined by the setting you select
using the input control knob and the prevailing weather conditions.
During the following day the heat stored in the brick core is
gradually transmitted through the insulation and out of the heater
case.
In the morning, when the core is at its hottest, the amount
of heat being transmitted through the insulation and emitted
as radiant heat is at its greatest and the heater feels hot over
most of its upper outer surfaces. Diagram 2.
As the day progresses, heat is transmitted from the heater
to the room and the outer surface of the heater becomes less
hot and the amount of heat released in this way becomes
less.
If the amount of emitted heat becomes insuffi cient the
output of the heater and thus the room temperature may
be increased by means of the Output Control. This control
operates a damper fl ap within the heater which, when the
output control knob is at minimum, covers vertical airways
which pass directly through the centre of the core of the
heater. Even when the outer surfaces of the heater are
noticeably less hot, the core of bricks can still be at a
relatively high temperature. Opening the damper fl ap by
moving the output control away from minimum allows the
room air to circulate through this hot core and release more
heat to the room by convection. Diagram 3.
Input Control
The setting of this control determines the temperature of the room at the end of the charge period, as measured by the heater’s builtin room temperature sensor.
With the Output Control Knob set to minimum (fully anticlockwise) for domestic use, or maximum (fully clockwise) for commercial
applications, the Input Control Knob should initially be set at the mid point position. During the day following the fi rst charge period
the comfort level provided by the heater should be noted. If it is felt that the level of heating is either too high or too low, then the
Input Control Knob should be adjusted up or down as appropriate before the next charge period. This process should be repeated
each day until the most acceptable conditions are attained. The Input Control knob should then be left at this setting, and the heater
will automatically vary the charge taken in during subsequent charge periods to make the most effective use of off-peak electricity to
provide the selected level of comfort at the end of each charge period.
In the Autumn and Spring a lower setting of the Input Control Knob should be suffi cient, the actual setting required being infl uenced
by the prevailing weather conditions, the room size and insulation levels. The most suitable settings will be found by experience.
Output Control
Depending upon the amount of charge accepted by the heater, the Output control allows the release of additional heat by means
of a damper which can be opened to allow a greater air fl ow through the heater core, and therefore additional circulation of heat.
By altering the setting of the Output Control Knob the damper may be opened and closed manually, or it may be made to open
automatically.
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Manual Operation
With the OUTPUT control on minimum the damper remains closed, and heat is released from the heater only by normal radiation
and convection around the outer surfaces of the heater. This alone may provide suffi cient heat on many occasions and therefore no
alteration of the OUTPUT control is necessary. However, if a boost of heat is required in the evening period, then moving the OUTPUT
control to maximum in the evening will immediately open the damper to allow more rapid release of any available stored heat. When
the next charging period commences the damper will automatically close to prevent this release of extra heat during the charge period,
but the OUTPUT control must be returned to minimum manually to obtain a similar operation the following day.
Automatic Operation
The damper may be pre-set to open automatically each day if required. Setting the OUTPUT control at settings other than minimum
results in an automatic boost of heat. A high setting on the output control knob causes the damper to open early afternoon/evening,
conversely a lower setting causes it to open later.
Because the automatic opening of the damper is primarily dependent on core temperature then the amount of charge the heater has
taken has a bearing on the time at which the damper opens. For a given setting of the OUTPUT control, the colder the weather (and,
consequentially, the greater the charge taken automatically by the heater) the later the damper will open.
Conversely, for a lower charge input (in milder weather) the earlier the damper will open for a given room temperature boost setting.
The most suitable settings of the Output control for different conditions will be found by experience.
Remember - a high setting of the OUTPUT control early in the day may leave too little heat stored in the heater for the evening,
especially during the less cold weather conditions.
IMPORTANT - Due to the newness of the materials the heater will produce a slight smell for the fi rst few days of operation.
ROOMS MUST BE WELL VENTILATED AND YOUNG CHILDREN, CAGED BIRDS, OR PERSONS WITH RESPIRATORY
COMPLAINTS MUST NOT REMAIN IN CLOSE PROXIMITY TO THE HEATER DURING THE FIRST 48 HOURS OF THE
COMMISSIONING PERIOD.
Cleaning
To maintain the external appearance of the radiator it need only be wiped over occasionally with a dry duster. During the summer
months, or at other times when the appliance is not in use and is completely cold, the opportunity should be taken to wipe over with a
damp cloth. Do not use abrasive cleaning powders or furniture polish.
Discoloration of wall fi nishes can sometimes occur immediately above a storage heater due to the properties of some paints and
decorating materials or the presence of environmental impurities in the air (such as soot or incense generated from the burning of
candles, etc.) A suitable shelf (available from Dimplex) may be fi tted to limit the extent of any wall discoloration.
After Sales Service
Your product is guaranteed for two years from the date of purchase.
Within this period, we undertake to repair or exchange this product free of charge (subject to availability) provided it has been installed
and operated in accordance with these instructions.
Your rights under this guarantee are additional to your statutory rights, which in turn are not affected by this guarantee.
Should you require after sales information please go to www.dimplex.co.uk where you will fi nd our self help guide by clicking on ‘After
Sales’ or ring our help desk on 0845 600 5111 (UK) or 01842 4833 (ROI).
Spare parts are also available on the web site www.dimplex.co.uk.
It would assist us if you can quote the model number, series, date of purchase, and nature of the fault at the time of your call. The
customer services help desk will also be able to advise you should you need to purchase any spares.
Please do not return a faulty product to us in the fi rst instance as this may result in loss or damage and delay in providing you with a
satisfactory service.
Please retain your receipt as proof of purchase.
Total Co-ordinated Heating
Dimplex manufactures a complete range of heating appliances in matching style, to provide co-ordinated heating throughout the
home or offi ce. Brief details are given overleaf.
To commission the heater set both the input and output controls to maximum and leave for 48 hours, after this period the
controls should be adjusted for everyday use - see ‘SETTING THE CONTROLS’ on the front cover of these instructions.
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RECYCLING
For electrical products sold within the European Community.
At the end of the electrical products useful life it should not be disposed of
with household waste. Please recycle where facilities exist. Check with your
Local Authority or retailer for recycling advice in your country.
Dimplex UK Limited
Millbrook House,
Grange Drive, Hedge End,
Southampton SO30 2DF
Customer Help Line 0845 600 5111
Fax 01489 773 050
Web-site www.dimplex.co.uk
This product complies with the European Safety Standards EN60335-2-30 and the European Standard Electromagnetic Compatibility (EMC) EN55014, EN60555-2 and EN60555-3.
These cover the essential requirements of EEC Directives 2006/95/EC and 2004/108/EC
© GDC Group Ltd. All rights reserved.
Material contained in this publication may not be reproduced in whole or in part, without prior permission in writing.
A division of the GDC Group Ltd, Millbrook House, Grange Drive, Hedge End, Southampton SO30 2DF
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