Dimplex CXLS12N User manual

Operating Instructions

CXLSN automatic storage

and convector heater range

Models: CXLS12N

CXLS18N

CXLS24N

These instructions should be read carefully and

retained for future reference. Note also the

information given on the appliance.

Issue 1 January 2011

1224-CXLSN_STORAGE HEATER INSTRUCTIONS.indd 2 14/01/2011 10:29

These instructions

should be read

carefully and retained

for future reference.

Note also the

information given on

the appliance.

IMPORTANT

SETTING UP YOUR NEW HEATER

Setting up your new heater, called ‘commissioning’ is simple as instructed on

page 3. Please note that the new materials in the heater will produce a slight

smell for the ﬁrst few days of operation. Rooms must be well ventilated

and persons with respiratory complaints, young children or caged

birds must not remain in close proximity to the heater for a minimum

of the ﬁrst 48 hours of the set-up period. If several new heaters have been

installed it’s recommended that the set-up for each one (commissioning) is

phased over several days.

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.

• If aged or inﬁrm 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 ﬁtted

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

see contact details on back page.

• 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 concern-

ing 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.

• Do not put clothes, fabrics or any combustible materials on the heater.

• Do not allow curtains to come within 75mm (3”) of the top and ends of the

heater.

• DO NOT SIT OR STAND ON THE HEATER.

• DO NOT PLACE OBJECTS IN CONTACT WITH THE HEATER.

PLEASE NOTE: YOUR HEATER IS VERY HEAVY AND MUST BE SE-

CURELY FIXED TO A SOUND WALL.

• No attempt should be made to move the heater without ﬁrst seeking

specialist advice. If you are not happy that the heater has been securely

ﬁxed, 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.

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The beneﬁts of storage heating

One of the beneﬁts of storage heaters is that after their

night-time intake of off-peak electricity i.e. the ‘charge’

they will always emit some heat throughout the day and

night. This helps to maintain a steady temperature so

that the room never gets cold, because the whole fabric

of the room retains some warmth.

In the morning, when the core is at its hottest, the

amount of heat being transmitted is at its greatest and

the heater feels hot over most of its upper surfaces.

As the day progresses, heat is transmitted from the

heater to the room and the surface of the heater

becomes less hot.

To ensure there is always sufﬁcient heat throughout

the day, the CXLS models come with a built-in top-up

convector heater which provides an independent

heat source.

Know your heater

Off-peak electricity is supplied from the national grid to

your house, usually overnight when national demand for

electricity is low. This is called the off-peak period.

Because it is off-peak it is supplied at a cheaper price

than normal day rate electricity and requires a separate

off-peak electrical circuit and meter. This circuit only

operates the storage heaters, and switches on

automatically during the off-peak time period which will

occur at set times of the night or day. If you are unsure

which off-peak tariff you have, you will need to contact

your electricity supplier for clariﬁcation.

In the same way as you charge up a battery, electricity

is used to heat elements in your heater, which over a

number of hours, gradually transfer the heat to a very

high density material that absorbs and stores the heat

for use during the next day. This process is referred to as

‘charging’ the heater.

In order to ensure your room stays warm overnight,

storage heaters are designed to give out some heat

even when the heater is ‘charging’.

When the off-peak ‘charging’ period ﬁnishes the heat is

gradually released in a controlled way over the course

of the day.

The CXLS models also have a built-in convector heater

that operates using the on-peak circuit (day rate).

Feet

Identity

label

InputOutput

Convector circuit switch

(on-peak electricity)

Controls: ‘Output’ and ‘Input’

Heat outlet

grille

Front

panel

Off-peak

circuit switch

Convector

heater

controls

1224-CXLSN_STORAGE HEATER INSTRUCTIONS.indd 4 14/01/2011 10:29

Setting up your new heater

1 The controls

To operate the off-peak storage heating function there are two

simple controls located at the top right of the heater.

2 To commission a new heater set both the INPUT and

OUTPUT controls to ‘MAX’ and leave for a minimum of 48 hours.

After this period the controls should be adjusted for everyday use.

Please remember that any changes you make will take at least 24

hours to take effect.

IMPORTANT - The new materials in the heater are likely to

produce a smell for the ﬁrst few days of operation.

Rooms must be well ventilated and persons with

respiratory complaints, young children or caged birds

must not remain in close proximity to the heater for a

minimum of the ﬁrst 48 hours of the set-up period.

Multiple installations

If several new heaters have been installed it’s recommended that

the set up (commissioning) is phased over several days.

Setting up your heater for normal use

‘INPUT’ energy control

The INPUT controls the amount of off-peak electricity – i.e. the

‘charge’, going into the heater at night, and therefore it controls how

much heat is stored within the heater ready for use the next day.

The more electricity that goes in, the more heat is stored and

available for use the following day.

The setting of the INPUT controls on these models automatically

determines the temperature of the room at the end of the

off-peak charge period.

This is measured by a temperature sensor on the heater which senses

both the temperature inside the heater and the room temperature.

Once a comfortable INPUT setting has been found, the CXLS will

compensate for changes in weather conditions automatically.

Setting the INPUT control

3 The INPUT control should initially be set as shown.

4 During the day after the ﬁrst 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 should

be adjusted slightly up or down as appropriate before the next

charge period. This process should be repeated each day until the

most acceptable comfort conditions are arrived at.

InputOutput

INPUT

control

TIP The INPUT control can be left at the established comfort setting

and the heater will automatically vary the charge taken to maintain

the setting. BUT the actual setting will be inﬂuenced by the prevailing

weather conditions, the room size and insulation levels of your home.

The most suitable settings will be found by experience.

InputOutput

Maximum

position

Minimum

position

INPUT

Input

1224-CXLSN_STORAGE HEATER INSTRUCTIONS.indd 5 14/01/2011 10:29

INPUT

Manual ‘BOOST’ operation

6 With the OUTPUT control set on minimum (anticlockwise) the

airﬂow release [boost] remains closed, and heat is released from

the heater only by normal radiation and convection. This alone

may provide sufﬁcient heat on many occasions and therefore no

adjustment of the OUTPUT control is necessary.

7 If a boost of heat is required later in the day, then moving the

OUTPUT control to maximum (clockwise) in the evening will

immediately open the airﬂow to release more heat.

Automatic ‘BOOST’ operation

Turning the OUTPUT control to settings beyond

minimum, results in an automatic boost of heat.

8 A high setting on the OUTPUT control i.e. max opens

the airﬂow release early afternoon/evening.

9 A lower setting as shown opens the airﬂow later in

the evening.

The most suitable settings of the OUTPUT control for

different conditions will be found by experience.

‘OUTPUT’ boost heating control

5 This controls the airﬂow release through the heater and can be

used to release heat faster or as a boost of heat later in the day.

Depending upon the amount of charge accepted by the heater, the

OUTPUT control allows the release of additional heat,’the boost’, by

increasing the air ﬂow through the heater. By altering the setting of

the OUTPUT control, the airﬂow release can be opened and closed

manually, or can be set to open automatically.

Because the manual or automatic opening of the airﬂow release is

primarily dependent on how much heat remains in the heater, the

amount of charge the heater has taken has a bearing on the time

at which it opens. The boost will not operate and the internal ﬂap

will not open if the output of the heater is already high enough,

or if there is insufﬁcient heat available from the product.

TIP When the next charging period starts the airﬂow release will

automatically close. If you want to retain the optimum amount of

heat for a boost the next day, ensure you reset the output to

minimum before the start of the next charging period which is

normally overnight.

TIP 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 cold weather conditions.

If a boost is not required, e.g. when a room is unoccupied for a long

period, set the OUTPUT control to min (anticlockwise).

OUTPUT

setting for

no Boost

OUTPUT

setting for

immediate

Boost

OUTPUT

setting

for earlier

Boost

OUTPUT

setting

for later

Boost

InputOutput

Input

Output

(Boost closed)

Input

Output

(Boost open)

Input

Output

(Boost open)

Input

Output

(late boost)

OUTPUT

control

1224-CXLSN_STORAGE HEATER INSTRUCTIONS.indd 6 14/01/2011 10:29

Operating the convector heater

10 In addition to the storage heater section the

CXLSN incorporates a convector heater element

in the front of the heater which may be used

independently of the storage heater, for example to

“top-up” on very cold days, or for use in late spring

and early autumn when only infrequent cold spells

do not justify continuous use of the storage heater.

Cool air is drawn in at the base of the heater, heated

by the convector element, and subsequently emitted

from the grille at the top front of the heater.

The convector heater section is also intended for use

when the output of the storage heater is not sufﬁcient to

maintain the desired comfort level.

11 The controls

A Thermostat scale representing an approximate

range of temperatures from 5°C to 35°C.

B Symbol representing heat convection

C Neon lit when convector using current.

D Symbol representing OFF position of

convector switch.

E Symbol representing ON position of

convector switch.

F Convector ON/OFF switch with neon will illuminate

when switch is in ON position.

12 Switching on

Depress the right-hand side of the switch F. The switch

neon C will glow when the switch is in the ON position.

If the room temperature is below the thermostat setting

neon C will glow, showing the convector is providing heat.

TIP

For the most economical operation of the CXLSN, the

heating system should be designed so that the storage

heater section provides the bulk of the heating requirements,

and the convector heater section provides only top-up heat,

for example, later in the day in cold weather.

1224-CXLSN_STORAGE HEATER INSTRUCTIONS.indd 7 14/01/2011 10:29

13 Setting the thermostat

The thermostat A should be set to the comfort level

required. Turning the knob clockwise will increase the room

temperature selected, but the actual setting to provide the

required conditions will be found by experience. If, when the

convector heater is switched ON and available for use, the

room temperature is below that set on the control, the neon

C will be illuminated, showing the heater elements are

being used.

14 24-hour convector operation

In certain circumstances it may be desirable for the

convector to be available during the off-peak period. If this

is so the installer can select this option during installation,

however, the user should be aware of the following:

1. If the convector heater is not required during the off-peak

period the user must remember to switch it off F.

2. If the convector heater is used at a high level for a

signiﬁcant period during the off-peak period it will have the

effect of reducing the level of charge taken by the storage

heater for a given input setting. A higher setting of the input

control may be required to compensate for this.

1224-CXLSN_STORAGE HEATER INSTRUCTIONS.indd 8 14/01/2011 10:29

Seasonal settings

Summer

In summer when you hopefully don’t

need any heat you can switch the heater

off at the wall sockets. Turn them on

again when you need heating.

Summer

TIP If heating is needed unexpectedly e.g.

Spring or Autumn the convector heater can be

used but remember to switch on the convector

wall switch ﬁrst.

OFF

OFFX

Preparing for colder weather

2 Remember to turn the heater on at

the wall switch.

• Allow 24 hours for the heater to ‘charge’.

• Adjust the controls as necessary.

• The INPUT control should not need to be

seasonally adjusted.

Holidays – Summer

3 In the summer the heater can be turned

off at the wall switch.

Holidays – Winter

4 In the winter set the controls as shown to

protect the room from frost ensuring the wall

switch is on.

5 Alternatively the convector can be used

for frost protection by ensuring that the con-

vector wall switch is ON, the ON/OFF switch

is on and the thermostat is set to minimum,

(fully anticlockwise).

TIP Remember to ﬁrst switch on at the sockets.

When you switch the heater on again it may need

a ‘charge ‘before heat is available. There may be

a delay of 24 hours before ‘stored’ heat

is available.

TIP If the external temperature falls below – 3°C

it is likely that you will need supplementary heating

to maintain the normal temperature in the room.

OUTPUT

INPUT

4 5

Input

Output

(late boost)

Input

Output

(late boost)

OFFX

OFF

OFFX

1224-CXLSN_STORAGE HEATER INSTRUCTIONS.indd 9 14/01/2011 10:29

ISSUE SOLUTION

My heater is too cold • Has there been an interruption to mains power? A power cut during the off-peak period could affect

the charge taken by the heater.

• Ensure that the off-peak circuit is working, the wall switch is on and the fuse is ok.

• Turn up the INPUT control (this may take up to 24hrs to take effect).

• Turn on the ‘boost’ function.

• Has the heater been inadvertently covered? If so, the safety cut-out may have operated.

Please call Customer Services if this is the case.

• Do you have another heater nearby? If so please see ‘One of my heaters is colder than the other’ below.

• Is the room cold? If you have an automatic heater the room temperature will have an effect on the

charge taken, therefore if the room is already warm the heater will not take an unnecessary charge.

My heater is too hot • Turn the INPUT control down (this may take up to 24hrs to take effect).

Turn the OUTPUT control to minimum.

• Turn off the ‘boost’ function.

One of my heaters is • If two automatic heaters are ﬁtted in one area, they may affect each others’ operation.

colder than another • Set one heater higher as a ‘primary’ source of heat, and the other lower to provide ‘supporting’ heat to

avoid the heaters cancelling each other out and taking a reduced charge.

The front panel • If two automatic heaters are ﬁtted in one area, they may affect each others’ operation.

is cool (CXL) • The CXL front panel is spaced further away from the storage bricks than on other storage heaters.

This space houses the convector heater, which when not in use can lower the front panel temperature

when compared to other heaters. This is not a fault.

My room is not warm • Turn the INPUT control up. Turn the OUTPUT control down.

enough in the evening • Alternatively, set the OUTPUT control to minimum, turning it to maximum in the evening when you want

more heat. Return it to minimum before you go to bed so that the heater can take a full charge.

Smells other than • Apart from the commissioning period and an accumulation of dust within the heater (e.g. after long

that caused during periods of inactivity) no smells should be present. One exception is when decoration is being carried

commissioning out, especially if the substances used have a petrochemical base.

• If decorating is to be carried out, turn off the storage heater and ensure the room is well ventilated

before the heater is turned back on again.

The storage heater • Lit cigarettes, candles and oil burners, combined with the convection effect of a storage heater can

has left black marks cause soot deposits to build up on the surface directly above and to the sides of the heater.

on the wall • Installing a shelf above the heater is one solution, as the heat rising above the heater will be diverted

away from the wall and into the centre of the room. Please ensure a minimum of 250mm clearance

between the top of the heater and the shelf.

Troubleshooting guide

  

Please note this guide refers to heaters being operated individually. If a central control system is installed some issues may require

that you refer to the instructions provided with the system controlling the heaters.

If the above guides do not resolve your problem you may need to get in touch with our Customer Services Department on the details provided

on the back page. Before doing this, please ensure that you have access to the heater and have made a note of the model number,

manufacturers date code, series letter (found on the heater) and date of purchase (if known).

1224-CXLSN_STORAGE HEATER INSTRUCTIONS.indd 10 14/01/2011 10:29

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 ﬁnishes 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 ﬁtted 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 this product free of charge 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 ﬁnd our self help guides and videos by clicking on ‘Customer

Support’. If you cannot ﬁnd the information you need, a simple online form is

provided for your convenience, or contact the number below.

You will need the model number, serial number and series, date of purchase, and nature

of the fault to complete the online form or before contacting us.

Please do not return a faulty product to us in the ﬁrst 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.

Spare parts

Spare parts information is available on the website www.dimplex.co.uk, and the customer

services help desk will be able to advise you should you need to purchase any spares.

You will need the model number, serial number and series, date of purchase, and nature

of the fault before contacting us.

Protective guards

A range of protective guards designed for Dimplex storage heaters is available to order.

For more information contact Norfolk Industries on 01603 667957.

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.

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

Dimplex, a division of GDC Group Limited, Millbrook House, Grange Drive, Hedge End, Southampton SO30 2DF

Email customer[email protected] Website www.dimplex.co.uk

Customer Help Line 0845 600 5111 Fax 01489 773050

1224-CXLSN_STORAGE HEATER INSTRUCTIONS.indd 1 14/01/2011 10:29

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