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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.

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Summary of Contents for LST050

Page 1: ...hould 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...

Page 2: ...perience 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 C...

Page 3: ...ith 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 the...

Page 4: ...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...

Page 5: ...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...

Page 6: ...rt 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...

Page 7: ...y 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...

Page 8: ...rature 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 f...

Page 9: ...se 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 tim...

Page 10: ...rate 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...

Page 11: ...thin 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 th...

Page 12: ...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 m...

Page 13: ...able 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 se...

Page 14: ...llowing 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 C...

Page 15: ...oliday 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 t...

Page 16: ...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 day...

Page 17: ...ote 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 t...

Page 18: ...t 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 f...

Page 19: ...pplications 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...

Page 20: ...k Website www dimplex co uk Model Identifier 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 1...

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