Dimplex LST075 Instruction Manual

These instructions should be read carefully and
retained for future use. Note also the information
presented on the appliance.
Low Surface
Temperature Heater
Models: LST050 / LST075 /LST100 /LST150
OPERATING
INSTRUCTIONS MANUAL
INDPUKP4RG ISSUE 8

IMPORTANT
These instructions should be read carefully and retained for future use.
Note also the information presented on the appliance.
IMPORTANT SAFETY ADVICE
When using electrical appliances, basic precautions should always be followed to reduce
the risk of fire, electrical shock, and injury to persons, including the following:
IMPORTANT – The wall bracket supplied with the appliance must be used.
WARNING - DO NOT USE THIS HEATER IN THE IMMEDIATE SURROUNDINGS OF
A BATH, A SHOWER OR A SWIMMING POOL.
IMPORTANT – If the heater is installed in a room containing a bath or shower, it must be
so installed that switches and other controls cannot be touched by a person using a bath
or shower.
Do not use outdoors.
Do not locate the heater immediately below a fixed socket outlet or connection box.
WARNING: In order to avoid overheating, do not cover the heater. Do not place material
or garments on the heater, or obstruct the air circulation around the heater, for instance
by curtains or furniture, as this could cause overheating and a fire risk.
NEVER cover or obstruct in any way the heat outlet slots at the top of the heater or the air
inlet slots in the base of the heater.
The heater carries a warning ‘DO NOT COVER’ to alert the user to the risk of fire that
exists if the heater is accidentally covered.
CAUTION - Some parts of this product can become very hot and cause burns. Particular
attention has to be given where children and vulnerable people are present. *
This appliance can be used by children aged from 8 years and above and 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.
Children shall not play with the appliance. Cleaning and user maintenance shall not be
made by children without supervision.
Children of less than 3 years should be kept away unless continuously supervised.
Children aged from 3 years and less than 8 years shall only switch on/off the appliance
provided that it has been placed or installed in its intended normal operating position and
they have been given supervision or instruction concerning use of the appliance in a safe
way and understand the hazards involved. Children aged from 3 years and less than 8
years shall not plug in, regulate and clean the appliance or perform user maintenance.
Note that due care and consideration must be taken when using this heater in series
with a thermal control, a program controller, a timer or any other device that switches on
the heat automatically, since a fire risk exists when the heater is accidentally covered or
displaced.
If the supply cord is damaged it must be replaced by the manufacturer or service agent or
a similarly qualified person in order to avoid a hazard.
WARNING: Servicing and product repairs should only be undertaken by the manufacturers
approved service agent or a similarly qualified person, using only exact manufacturer
approved spare parts.
*NOTE: In order to comply with European Standard 60335 we are obliged to include
the cautionary reference to surface temperature. However LST heaters are designed to
meet NHS Requirements for ‘Safe Hot Water and Surface temperatures’. LST surfaces do
not exceed 43°C at 21°C room temperature and therefore operate at significantly lower
surface temperatures than allowable by the Standard.
2

WARNING – THIS APPLIANCE MUST BE EARTHED
The electrical installation must be carried out by a competent electrician, and be
in strict accordance with the current I.E.E. Regulations for Electrical Equipment in
Buildings. The wires in this mains lead are coloured in accordance with the following
code:
GREEN AND YELLOW: EARTH
BLUE: NEUTRAL
BROWN: LIVE
BLACK PILOT WIRE
- see also ‘Pilot Wire Connection’.
The heater is fitted with a length of flexible cable type H05VV-F size 4 x 1.0mm2for
connection to the fixed wiring of the premises through a suitable connection box
positioned adjacent to the heater.
A means for disconnection must be incorporated in the fixed wiring of the premises
in accordance with the wiring rules. The supply circuit to the heater must incorporate
a double pole isolating switch having a contact separation of at least 3mm.
Pilot Wire Connection
The BLACK control wire is designed to carry a signal from a wall mounted Dimplex
programmer. If a programmer is not being used, the pilot wire should be isolated in
accordance with the current IEE Wiring Regulations.
IMPORTANT - DO NOT connect the BLACK pilot wire to earth. Care should be taken
with the installation of the pilot wire(s) as when switching to background (setback)
they become energised at 240V although only at a current of less than 100mA. In
every case a suitable means of isolation must be provided for the pilot wire and
marked to indicate that two sources of supply may be present at the heater. Where
pilot wires are installed separately from the heater final sub-circuit they should be
protected, double insulated and carry their own integral earth continuity conductor.
Supplementary Earth Bonding
Should Equipotential Earth Bonding be required the earthing conductor in the supply
cord is deemed to provide the supplementary bonding connection (see Regulation
544.2.5, 17th Edition I.E.E. Wiring Regulations).
Please note that lit cigarettes, candles and oil burners, combined with the
convection effect of electric heaters can cause soot deposits to build up on the
surface directly above and to the sides of the heater. This is not a fault of the
heater. Extensive burning of candles or smoking in the operating environment of
this product can produce heavy discolouration within a few months of use.
3

General
The heater is designed for wall mounting using the wall bracket supplied.
It should only be operated when in the upright position as shown - see Fig. 3
and Fig. 4. All models are splash proof to IP24 standard and may be used in
bathrooms, however not in the immediate vicinity of baths, showers, water
connections, wash basins or swimming pools. Before connecting the heater
check that the supply voltage is the same as that stated on the heater.
Dimensions
Model(s) Watt (kW) A (mm)
LST050 0.5 kW 688
LST075 0.75 kW 688
LST100 1.0 kW 688
LST150 1.5 kW 860
see Fig. 3
Wall Mounting
IMPORTANT – The wall bracket supplied with the appliance
must be used. The heater should be positioned observing the
minimum clearances stated around the heater - see
Fig. 2, Fig. 3 and Fig. 4.
DO NOT locate the heater immediately below a fixed socket
outlet or connection box.
1. Remove wall mounting plate from the back of the
heater by firstly removing the M4x20 screw with a
Pozi Head No.2 screwdriver see Fig 1.
2. Fix the wall bracket securely to the wall through the
four screw holes provided referring to dimension A Fig 2.
3. Present the wall brackets on the heater to the wall
mounting plate and engage lower slots in the wall
brackets to the hooks on the wall mounting plate.
4. Position the top slots onto the top hooks and slide the
heater downwards until the slots come to a positive stop.
5. Re-insert the M4x20 screw in the M4 clinch nut on the
wall bracket. This secures the heater to the wall plate.
4

Fig. 1
Fig. 3
A
150 mm (Min)
430 mm
150 mm (Min)
150 mm 108 mm
Shelf Fig. 4
B
168 mm
C
284 mm
Fig. 2
Model (s) B (mm) C(mm)
LST050 406 270(min)
LST075 406 270(min)
LST100 406 270(min)
LST150 504 330(min)
5

Notes to the Installer
Test Mode
When the heater is connected via a pilot wire system, the test mode allows
the installer to confirm that the heater is responding correctly to the incoming
pilot wire signal.
Pilot wire mode must be enabled in the heater’s settings in order for the
appliance to be controlled by a Dimplex controller with pilot wire connection.
Press MENU, BACK and ENTER for ten seconds to enter the service
menu, select Pilot Wire and press ENTER. Select Enable.
Safety - Overheat protection
Note: Some features are
not available while pilot
wire mode is enabled.
Test Mode
Pilot Wire
Status
Comfort
Time
remaining
4:00
Comms
Standalone
RF Module
Pilot Wire
Select
Comfort SP
21 °C
For your safety this appliance is fitted with
a thermal cut-out. In the event that the
product overheats for some reason, the cut-
out prevents excessive temperatures on the
product by cutting the power to the heater.
Once the heater has cooled down, it will reset
automatically, it will continue to cycle
on and off automatically until the reason for
overheating is removed.
The display screen will flash red to indicate the
product has overheated. To reset the display,
remove the obstruction and hold ENTER for
10 seconds.
The desired comfort temperature should be
selected using and . Press ENTER to confirm.
The heater will now enter a test state for four
minutes.During this test state the display screen will
indicate the pilot wire status. Each pilot wire mode
should be verified to ensure correct operation.
Note: The comfort
temperature can be
changed later if required.
6

User introduction
Thank you for choosing the Dimplex LST heater. We manufacture the highest quality heating
products for use in a wide variety of environments.This product has been designed to incorporate
the latest, most advanced technologies to give you maximum control over your heating.
The system allows for the simple setting of required time and temperature, and includes many
energy-saving features which work automatically to help keep you warm for less.
Please read the instructions closely before first using the product, there is also quick-start
guide on the next page if you need a reminder of how to use the basic functions in the future.
Energy saving features
The Dimplex LST heater has many features which are designed to save you money. It has a self-
learning capability which learns the thermal characteristics of a room and determines how long
the appliance needs to be on in order to reach target temperature based on factors such as room
size, heat loss and prevailing weather. This minimises wasted energy whilst maximising comfort,
keeping you warm for the lowest possible cost.
Fan assisted flow
The Dimplex LST heater has a convection element which automatically adjust its power output. It
has a quiet fan to rapidly circulate heat around the room while ensuring the body of the product
remains cool to the touch. This allows the product to heat the room more efficiently than a
conventional convector maintaining an incredibly accurate room temperature. The product will
reduce its output as the room gets close to the target temperature, to avoid overshooting the
target temperature and stopping the room from overheating, thus saving you energy.
Open window technology
Should a window or door be accidentally left open, your heater will detect the sudden change in
temperature and go into standby mode, returning to normal operation when the window or door
has been closed. This ensures output of the heater is reduced while heat is escaping from the
room, saving you money.
EcoStart (Anticipatory Control)
Measuring the heat-up and cool-down times of the room and how they vary with external
temperatures, the heater will calculate what time it needs to start heating in order to reach the
user defined target termperature at a specified time. For example, if you get up at 7am, you
would normally have to guess when to turn the heating on in order for it to pre-heat the room in
time. Depending on how cold it is outside, this could mean the room is still cold when you have
to get out of bed, or mean that its been warm for half an hour before it needed to be. This clever
feature means that if you select 21 degrees celsius at 7am, the heater will turn on exactly when
it needs to to meet this target, running for shorter periods of time when the weather is mild, and
ensuring the room is nice and warm in the winter.
These functions are explained in more detail later, and can be disabled if the environment
where the heater is installed means that they are not needed.
7

Quick Start Guide
This guide is for quick reference only. Please refer
to the operating section for further information.
How Does the Heater Control Work?
The control allows you to choose when you want heat and at what temperature.
When using a timer mode (see below), Comfort On will display on the home screen to tell you when the heater
is maintaining the temperature displayed. Comfort Off will display when the heater is outside of a timed heating
period.
When Manual, Eco or Frost modes are being used the heater will always maintain the temperature shown on
the home screen.
Set the Time
To set the date and time on the heater, press Menu, then press the Enter with Time / Date highlighted. Press
or until the correct value is shown, then press Enter to confirm and move on to the next value. Repeat until
all details are correct, and Set displays, then press Back.
The time is automatically adjusted in spring and autumn between Greenwich Mean Time (GMT) and British
Summer Time (BST).
Set the Temperature
The temperature shown on the display is the room temperature set point.This is the temperature that
the heater will maintain during heating periods. If the room temperature is above this temperature
then the heater will not operate. The heater leaves the factory with this temperature set at 21°C which
represents a typical, comfortable room temperature. If you require a different room temperature then
press either or on the home screen until the display shows the temperature you require.
Child Lock
If you need to lock the controls so that the
settings cannot be changed then activate
the Child Lock. To lock the controls press
and hold both the Back button and Enter for
three seconds. Child Lock will appear at the
bottom of the screen. To unlock the control
repeat the action by pressing both the Back
button and Enter for three seconds.
Press and hold both
the Back button
and Enter for three
seconds
Timer Modes
Your heater comes pre-programmed with four timer modes.
These modes define the periods when the heater will
operate in Comfort On mode. The four modes are:
Timer Mode Description
Out All Day 6 hours heating per day in two periods
Home All Day 13 hours heating per day in one period
Holiday Set the number of days for which you
are on holiday
User Timer Customise times in four periods
8

Mode
Timer Mode
Manual
Eco Mode
Frost Protect
O
Which Timer Mode is Best for Me?
The heater leaves the factory set in Out All Day mode. If you are out during the day and only require heat
in the mornings and evenings then this mode will suit your lifestyle and you won’t need to alter anything. If
you are in during the day then you should select the Home All Day mode which is a single heating period.
The times of these modes can be modified, or the User Timer mode can be used to give you four periods of
heating split throughout the day. If you are away for an extended period then you can use the Holiday mode.
This allows you to reduce the heating during the period that you are away, reverting to the previously selected
mode on the day you return.
To choose a timer mode press Menu followed by Enter to select Mode then Timer Mode. Select the mode
required by pressing or then Enter. For options Out All Day, Home All Day and User Timer, three
choices are available - Select, Preview and Modify.
Select - Choose this timer option
Preview - View the times currently set
Modify - Change the times currently set
(Please refer to the operating section of this manual for information on how to modify the programmed times.)
Advance
Sometimes you may be at home when you had not planned to be,
or need to leave when you had planned to have the heating on.You
can change the way you use your heating temporarily, this temporary
change is achieved by using the Advance function.
When a timer has been selected, the Advance function allows you to
begin the next Comfort On period early. If the heater is in a Comfort
Off period and you want heat – press the Advance button. If the
heater is in Comfort On and you don’t want heat, press the Advance
button and it will go off until the beginning of the next Comfort On
period.
Advance Boost
The Advance button is also used to give a Boost which provides
temporary heating for one, two, three or four hours. Press the
Advance button twice to begin a one hour Boost. Continue pressing
the Advance button to enter the longer Boost periods.
Comfort On
Main Menu
Date/Time
Mode
Options
Timer Mode
Out All Day
Home All Day
Holiday
User Timer
Out All Day
Select
Preview
Modify
Out All Day
Selected
9

Operation
1Display Screen
2‘Menu’ Button
3‘Back’ Button
4‘Up and Down’ Arrows
5‘Enter’ Button
6Heating Status
7‘Advance’ Button
The heater is fitted with an adjustable thermostat enabling the room
temperature to be controlled. The minimum room temperature is 7°C.
The maximum temperature is set to 26°C by default however this can be
increased to 32°C if required. A temperature of 21°C represents a normal
room temperature.
NOTE: Should the heater fail to operate, this may be due to the
room temperature being higher than the thermostat setting.
1 2 4 5
6 3 7
Comfort On
The controls are located on the top right of the front of the heater. The
heater is fitted with an adjustable electronic controller consisting of a
display screen and six touch sensitive buttons.
NOTE: Your heater may produce some noise during operation.
This noise is caused by the expansion and contraction of the
element as it changes temperature, and is normal for this type
of product. Whilst the noise produced is usually very quiet, cer-
tain environmental factors can make it more noticeable, such as
hard flooring or minimal furnishings.
10

Control Functions
The heater controls can be easily adjusted by using the six buttons
on the User Interface.
1. The Display Screen shows the options available at each stage
of adjustment.
2. Menu – displays the main options list;
Date/Time – Set the date and time.
Mode – Set the mode of operation.
Options – Temperature units, daylight savings time, lock settings and
service information.
3. BACK returns to the previous programming stage.
4. The and buttons are used to navigate through the menus and alter
setting values. The and button are also used to adjust the required room
temperature on the main screen. The screen colour changes based on the
temperature selected, showing deep blue through to bright red.
5. ENTER is used within the menu options to confirm settings. On the main
screen pressing ENTER will display the enabled features.
6. The timed periods during which the heater is providing heat are defined as
‘Comfort On’ (this is displayed at the bottom of the screen).
Outside of heating periods the heater will not deliver heat and these periods
are called ‘Comfort Off‘.
While constant heat modes are active, the mode of operation is displayed at
the bottom of the screen e.g. ‘Manual’.
7. The ADVANCE button overrides the heating settings and changes the
operational state of the heater. If a timer mode is active, pressing ADVANCE
will cause the heater to remain ON until the next OFF period is due, or OFF
until the next ON period is due.
If the heater is in a constant mode of operation, Advance can be used to
switch the appliance ON and OFF.
ADVANCE is also used to enter Boost mode. Boost mode delivers heat for
between one and four hours.
11

Main Screen
After 30 seconds of inactivity the heater will default back to the Main
Screen. Here the chosen temperature is displayed along with the mode of
operation. Any use of the ADVANCE function will be displayed here, and
pressing ENTER will show the functions which are enabled.
When left inactive for a long period of time this display will ‘sleep’ and the
text will disappear. Press any button for its return.
The heater incorporates a real time clock with
calendar function. The time clock has a battery
backup that will keep the clock running in the
event of a mains power outage.
To adjust the time or date follow the steps
below.
Press the MENU button. Select Date/Time by
pressing the ENTER button. Press and to
select the correct day of the month and press
ENTER to select.
Repeat this operation, until the date and
time has been set, ensuring to press ENTER
to select. Press BACK button to return to
the Main Screen once Set has been
displayed.
Date/Time
WED
01-01-14
12:00
Main Menu
Date/Time
Mode
Options
Date/Time
Set
Setting the Date and Time
NOTE: The display screen
will return to the main
screen after a period of
30 seconds of inactivity.
Home All Day
Comfort On
ES OW
UI Rev 01
ACC Rev 01
NOTE: Pressing ENTER
will show the functions
which are enabled, e.g. ES
OW above. Ref.: page 17
12

Modes of Operation
The heater comes pre-programmed with a set of heating profiles. There are four
options available - three preset and one user adjustable timer;
1. Out All Day (pre-programmed) - has the following preset
times Monday to Sunday, which can be altered if desired;
07.00 until 08.30
17.30 until 22.00
2. Home All Day (pre-programmed) - has the following preset
times Monday to Sunday, which can be altered if desired;
08.00 until 21.00
3. Holiday (pre-programmed for 7 days at 10°C) - set the number of days
required (from 1 to 300) and the temperature required. 7°C is advised if you
just want to protect the property from frost while you are away.
4. User Timer - provides greatest flexibility to the user. Four time slots are
available throughout the day and these can be customised for each day of
the week.
The heater can also maintain a constant room temperature using the
following modes;
1. Manual mode heats the room to a comfortable temperature of 21°C.
2. Eco mode maintains a room temperature of 18°C. By reducing the room
temperature slightly, significant energy savings can be achieved. The green
display colour indicates that selected temperature provides a comfortable
room temperature while reducing energy consumption.
3. Frost Protect mode maintains a room temperature of 7°C.This mode should
be used to provide protection against frost as indicated by the blue display.
Select Off to switch off the appliance. This mode should be used when heating is
not required for extended periods. Press any of the buttons to activate the display
and then select the required mode of operation.
NOTE: In all modes, and can be used to adjust the required room
temperature. In timer modes, this change is temporary and the heater will
revert the saved heating profiles at the end of the Comfort On period.
NOTE: Once modified a programme must be selected if you
want to begin using it.
NOTE: It is recommended that the timer is used as doing so can
reduce the running cost. Operating the appliance in the permanent
heating modes may result in increased running costs.
13

Choosing and Setting a Mode
Timer Modes
To choose a timer mode press MENU and to select Mode, then press
ENTER. Now select Timer Mode, again using the ENTER button. Select
the mode required, by pressing the or and ENTER buttons.
For options Out All Day, Home All Day and User Timer, three choices
are available - Select, Preview and Modify.
•Select - choose this timer option.
•Preview - view the times currently set.
•Modify - change the times currently set.
When Modify is chosen, select and change each option using the ,
and ENTER buttons. At the end of each period, select Next to move to the
following period. When a day is complete select Save to update it.
Once the first day has been set up it is possible to copy these settings to
successive days or all days by either choosing Copy Next or Copy All.
If preferred each day can be modified individually and saved. It is also
possible to Clear each day or Clear All days. Options are;
• Save - save times for one day.
• Copy Next - copy times to following day.
• Copy All - copy times to all seven days.
• Clear - zero all times that day.
• Clear All - zero all times for all seven days.
To select a mode, choose Select and press ENTER.
Main Menu
Date/Time
Mode
Options
Mode
Timer Mode
Manual
Eco Mode
Frost Protect
O
Timer Mode
Out All Day
Home All Day
Holiday
User Timer
Out All Day
Select
Preview
Modify
07:30
Comfort O
Next on at
08:00
14

If EcoStart control is disabled, the heater will not operate until the beginning
of the heating period. This should be taken into consideration when setting
the heating periods (See note below and page 17).
In Holiday mode the number of days that the room will be unoccupied can
be adjusted together with the required room temperature.
Press and to choose a holiday period between 1 and 300 days, then
press the ENTER button.
Morning
ON 07:00
OFF 08:30
21 °C
Next
Out All Day
Select
Preview
Modify
< TUE >
Holiday
Active Days
07
Temperature
10 °C
Out All Day
Selected
Constant Heat Modes
To choose a constant heat mode press MENU and to select Mode and
press ENTER.Then select the required mode, again using the ENTER button.
Press and to choose a temperature to
be maintained during this period and press
the ENTER button. At the end of the holiday
mode the heater will automatically revert
back to the previously selected programme.
NOTE: If EcoStart (ES) is enabled the heater will begin heating
the room before the start of the heating period to ensure the room
is at the required temperature when the period starts. If disabled
the heater will simply start heating at the start of the Comfort On
period.
15

Advance 1hr
Comfort On
Advance
Home All Day
Comfort On
Advance
The ADVANCE function allows the heating profile
of the appliance to be changed temporarily. When
a timer has been selected, the ADVANCE function
is used to begin the next Comfort On mode early.
If the heater is in Comfort Off mode and heat is
required, press the ADVANCE button.
If the heater is in Comfort On and heat is not required, press the ADVANCE
button and the heater will turn off until the beginning of the next Comfort On
period. If the heater is in Manual, Eco Mode or Frost Protect mode pressing
the ADVANCE button will switch off the heater.The heater will remain off until the
ADVANCE button is pressed again.
Options
DST Rule
Auto Lock
Sound
Service Info
Temp Units
The Options menu allows the settings to be modified to suit the user’s preferences.
These are; DST Rule - Select your Daylight Saving Time setting. The heater clock will
automatically adjust for daylight saving or “British Summer Time” as it is often referred
to. If no adjustment is required then select none.
Auto Lock - Enable or disable the Auto Lock feature. This feature locks the interface
if left inactive for longer than one minute. To unlock the appliance, press and hold
ENTER for two seconds.
Sound - Audio feedback can be enabled
or disabled.
Service Info - Service information is displayed.
Temp Units - Choose whether your unit displays
degrees centigrade or Fahrenheit.
The ADVANCE button is also used to enter
the Boost mode which provides temporary
heating for one, two, three or four hours. Press
the ADVANCE button twice to begin a one hour
Boost. Continue pressing the ADVANCE button
to set longer Boost periods.
Boost
Options
16

Child Lock
To lock the controls press BACK and ENTER for three seconds. Child
Lock will appear at the bottom of the screen. To unlock the control repeat
the action of pressing BACK and ENTER for three seconds.
Press and hold Enter for five seconds to display the User Information
menu;
SP Range (set point) allows adjustment of the maximum temperature.
Open Window detection (OW). When enabled the appliance will reduce
the target room temperature to limit the energy wasted when a window
is opened.
Occupancy detection (OD) reduces the room temperature when the room
is unoccupied. Note: currently not available on this model.
EcoStart (ES) – to achieve the desired temperature at the onset of the
timed Comfort On period the appliance anticipates when it needs to start
heating prior to the onset of the timed ‘on’ period. E.g room is 16°C, with
21°C at 7am set on the timer. With ES on the control will start to heat the
room before 7am, reaching 21°C at this time. With ES off the heater will start
to heat the room at 7am and will reach 21°C after this time.
Factory reset returns all settings to the factory presets.
NOTE: The controls
cannot be adjusted when
child lock is active.
NOTE: Open Window
detection is enabled by
default. EcoStart control is
disabled by default.
Child Lock
User Info
SP Range
Open Window
Occupancy
EcoStart
Factory Reset
User Information
17

Energy Saving Tips
The energy we use to heat, light and power our
homes contributes over a quarter of the UK’s
carbon emissions, the principle contributor to
climate change.
Around half the energy used in the home
is for heating and hot water, so using your
heating system efficiently will not only help the
environment, but also save you money.
Energy efficiency tips for heating and
hot water
1. Don’t set the temperature too high...
Reducing the thermostat setting by just 1°C
can reduce your energy use by as much as
10%. If you’re going away during the winter,
leave the thermostat on the frost protection
setting to provide protection from freezing
at minimum cost.
2. Use it where you need it...
Set the appropriate temperature on
your heaters for the room they are in; for
example, leave the heater thermostat in a
spare bedroom on a lower setting.
3. Use it when you need it...
Use heaters fitted with timers or linked to
central controllers to turn the heating on
only when you need it and automatically
switch it off when you don’t.
4. Curtains
Close your curtains at dusk to stop heat
escaping through the windows.
5. Windows
Nearly 25% of heat loss can occur through
poorly insulated frames and single glazing.
If you can’t afford to double glaze all your
windows, go for the rooms you heat most.
6. Treat your hot water tank...
Give it a jacket An insulating jacket for hot
water tanks costs only a few pounds and
pays for itself within months. Fit one that’s
at least 75mm (3”) thick and you could save
£10-15 a year.
7. Water
Use a shower if you have one to save time,
money and water. Don’t set the thermostat
too high on your water heater - 60°C/ 140°F
is usually adequate for bathing and washing.
Put the plug in when running hot water in
your sink - leaving hot taps running is both
wasteful and expensive. Ensure dripping
taps are repaired quickly. In just one day,
you could waste enough water to fill a bath.
Other energy saving tips for around
the home
1. Lights
Turn off lights whenever you leave a room
for more than ten minutes. Use low-energy
bulbs wherever you can as they use less
than a quarter of the electricity used
by ordinary light bulbs and last ten
times longer!
2. Cooking
Use the right size pan for food and cooker
hob. Keep saucepan lids on - this enables
you turn down the heat. Boil water for
cooking in a kettle first.
18

Important
During the initial operation, some odour may
be noticed due to the newness of materials
used in manufacture. This is normal and will
disappear after a short period of use. It is
however advisable to keep the room
well ventilated.
Cleaning
WARNING - ALWAYS DISCONNECT
FROM THE POWER SUPPLY BEFORE
CLEANING THE HEATER.
Before commencing cleaning, disconnect
the electricity supply to the appliance and
allow it to cool. The outside can be cleaned
by wiping it over with a soft damp cloth and
then dried. Do not use abrasive cleaning
powders or furniture polish, as this can
damage the surface finish. To release the
heater from the wall bracket for cleaning
or redecoration, remove the screw from
the wall bracket and lift the heater upwards
(See Fig. 1 and 2, page 5).
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 a Local Authority or retailer for recycling
advice in your country.
Patent/Patent Application
This product is protected by one or more of
the following patents or patent applications:
Great Britain: GB2511538
International: WO2014135667
After Sales Service
If this product appears damaged when
first received or does not function correctly
contact us by e-mail at aftersales@dimplex.
co.uk or call 0344 879 3588. For ROI please
call 01 842 8222.
Do not return the product in the first
instance as this may delay us providing you
with a satisfactory service. ACCIDENTAL
DAMAGE IS NOT COVERED UNDER THE
GUARANTEE.
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 provided it has been
installed and operated in accordance with
these instructions.
Should you require assistance with this
product please go to www.dimplex.co.uk
and click on “Customer Support” or e-mail
us at [email protected]
Alternatively call our contact centre on
0344 879 3588 (UK only). This is a Lo-call
number from a BT Landline - other providers
including mobile phones may charge you
more. For ROI please call 01 842 8222.
To assist you, we need the following
information: model number and product
ID (these are found on the side of the
appliance), nature of the fault and date of
purchase. Please retain your receipt as
proof of purchase. Your rights under this
guarantee are additional to your statutory
rights, which in turn are not affected by this
guarantee.
19

The product complies with the European Safety Standards EN60335:2-30 and the European Standard Electromagnetic Compatibility (EMC) EN55014:1,
EN55014:2, EN61000:3-2 and EN61000:3-3 which cover the essential requirements of EMC Directive 2014/30/EU and the LVD Directive 2014/35/EU.
© Glen Dimplex Group LTD. All rights reserved. Material contained in this publication may not be reproduced in whole or in
part, without prior permission in writing. Dimplex is a brand of Glen Dimplex Heating and Ventilation, Millbrook house, Grange Drive,
Hedge End, Southampton SO30 2DF.
Millbrook House, Grange Drive
Hedge End, Southampton SO30 2DF
Customer Helpline: 0344 879 3588
Email: [email protected]
Website: www.dimplex.co.uk
Model Identier(s): LST
050
LST
075
LST
100
LST
150
Nominal heat
output Pnom 0.5 kW 0.75 kW 1 kW 1.50kW
Height (mm) 430 430 430 430
Width (mm) 688 688 688 860
Depth (mm) 108 108 108 108
Minimum heat
output (indicative) Pmin N.A. N.A. N.A. N.A.
Maximum continuous
heat output Pmax,c 0.5 0.75 1 1.50
Auxiliary electricity Consumption
At nominal heat output elmax 0.00 0.00 0.00 0.00
At minimum heat output elmin 0.00 0.00 0.00 0.00
In standby mode elSB <0.0005 <0.0005 <0.0005 <0.0005
With open window detection Yes
With adaptive start control Yes
Energy Related Product Directive
Type of heat output / room temperature control
With electronic room temperature control Yes
Electronic room temperature control plus week timer Yes
With open window detection Yes
With adaptive start control Yes
This product complies with Lot 20 of the Energy Eciency Directive (2015/1188).