STRUCTIONS - Roma Heating
Contents
1. 2A For Wood and Laminate Floors Once step one is completed and the floor is level clean dust and debris free the boards are ready to be laid The boards can be laid directly over the sub floor making sure to butt the boards tightly together so not to leave gaps between boardsand round the edge of the room This prevent movement and maximise 2B For all other floor types Make sure the floor is tevel clean dust and debris primer should b applied to provide a good fix for the adr All na ation MUST comply a BS 7671 A aa Part P wiring requirements electrica ee as only then the boards can be laid A suitable floor esive see adhesive fitting instructions 14 3 Using a standard 1 part flexible floor tile adhesive suitable for use with the sub floor construction ie wood or concrete spread a thin full bed of adhesive over the floor It is advisable to work in board size areas at a time and rather than using a typical floor tiling trowel to use a smaller notched trowel such as a 6mm notch size which will increase the coverage of adhesive per bag 4 Once the adhesive is spread lay the insulation boards over the freshly spread adhesive using a large rigid flat trowel board to press the insulation boards down flat into onto the adhesive Care should be taken to make sure the boards are fully pressed into the adhesive and no air pockets or gaps are left under the boards All boards should be butted tightly togethe2. Systems lt lt Junction Box sal current device RCD fitted in accordance with all current electrical regulations at time of installation All electrical connections should be carried out by ees a qualified electrician It is the installer electrician s responsibility to make sure the system is fitted correctly and any additional materials are suitable Location for use with the heating system installed installations IEE wiring regulations regulations E any particular local electrical regulations Under Tile amp Stone Heat Mats 1 The sub floor must be clean sound and suitable for the chose covering prior to laying the heating We highly recommend the of a suitable insulation layer over concrete sub floors 2 Measure the floor accurately allowing for a 100mm unheated border around the perimeter of the area Once measured make sure the heating mat is a suitable size for the area The mat size and wattage can be found on the outer box and heating mat label The mat should also be tested for continuity and resistance at this stage The readings should be noted down on the back warranty page of this manual See Fig 2 D Tile Stone Flexible Tile Adhesive IMPORTANT If the mat is incorrectly sized or the resistance readings do not match the test results on the box label stop and return the mat for the correct size Once the mat is unrolled over the floor it becomes the responsibility
3. boards in place or tanking a room please follow the instructions below Heating Mat Cable Cementatious Insulation Flexible Adhesive Sub Floor Wood Concrete 2 The sub floor or walls whether concrete wood or plasterboard should be made suitable for the chosen floor covering ie tiles prior to any boards b fitted The boards are designed to provide in insulation levels not structural rigidity 3 Tile backer boards can be screwed to walls and floors using suitable fixing discs and screws The discs must be located at 300mm centres or closer minimum 15 fixings per 1200x600 board If the boards are to be screwed directly to stud walling the supporting studwork must be fitted at 300mm centres 6mm boards are for floor only and not suitable for walls due to their insufficient structural rigidity All Installation MUST comply with BS 7671 17th addition Part P wiring requirements tor electrica Floor or Wall 4 Fit the boards to the wall floor making Max 300mm sure to butt the boards tightly together to centers between achieve a full floor wall coverage It fixings is good practice to stagger joints between boards and if necessary a flexible floor adhesive can be used to fill any small gaps between boards It is important the boards are fixed securely to walls and consideration given to the weight of subsequent wall coverings On floors the boards are not designed to bridge gaps and must be screwed back tigh
4. heating sections It is important that cables are not laid to close together A minimum of 50mm should be maintained between cable runs If the heating cables get too close touch or overlap at any point the cable may overheat See Fig 3 6 Once the heating is fitted the electrical resistance and continuity test should be repeated and noted down on the warranty page Make sure these readings are the same as the readings noted down during stage 2 The heating should also be tested after the flooring has been fitted There is no limit to how much the cable can be tested but to complete the warranty the heating must be tested before it is laid after being laid and after the floor covering has been installed All figures must be accurately recorded 7 The floor probe supplied with the thermostat must now be fitted The probe must be installed under the foil and between 2 heating wires but no more than 30mm away from one cable Make sure when fitting the probe no other heating or cooling sources can influence the floor probe such as hot water pipes Once the probe is fitted a resistance check should be carried out to confirm the probe is fully functional and the readings noted down on the warranty card See Fig 4 When heating wood or laminate the floor covering manufactures recommended max floor temperature should be programed into the thermostat The thermostat must also be set to regulate floor temperature not air temperature 8 If multiple mats ne
5. is not a waterproof layer and contact with water or other liquids must be avoided If heating is fitted under the duo overlay it is good practice to label the floor to warn others other about any electrical hazard and that installations IEE wiring regulations building regulations and any particular local electrical regulations Warranty Card Terms and Conditions Roma Heating provides a lifetime warranty for all under tile heating cables and 15 year warranty for in screed heating cables and under wood floor heating mats In the case of defective materials supplied by Roma Heating Roma heating will either repair or replace the defective heating cable or mat Faults caused by incorrect installation or fitting procedure misuse or damage caused by others or any other damage caused by others will not be covered under this warranty This warranty does not cover installations completed by unqualified electricians Under no circumstances is Roma Heating liable for any consequential damages or losses materials or monetary associated with the under floor heating system To complete and activate the warranty your electrician must fill in all details on the form below during each stage when fitting the heating system Once completed log onto www romaheating co uk and click on warranty registration Transfer the information recorded on the form below onto the Online warranty and click submit Order Name Installation Date Electrician
6. length of the cable and total wattage can be found on the outer box or heating cable Final Floor Covering Up to 75mm screed In screed Cable Fig 2 Insulation Sub floor Make Sure All Readings Are within 5 off Box Multimeter 3 Before the cable is unrolled warranty page of this manual IMPORTANT If the salle incorrectly sized or the resistance readings do not match the test results on the box label stop and return for the correct size Once the cable is unrolled it becomes the responsibility of the installer and the cable can not be returned for an alternate size 4 Using the figures worked out in stage 2 the 5 between cable runs are worked out by Typical In Screed Floor Layout For Kitchen Type Area A Divide 1000 by the length meters of the heating cable B Times result A by the size of the area you are heating in m2 The final figure is the spacing in mm the cables should be spaced out at Tape or Clips Please note the figure should be somewhere between 70 110mm This figure is a guide and small adjustments may be required to the final spacing s to achieve the best coverage The cable must NOT be cut or reduced in length The spacing s between cables are either increased to increase the heated area or reduced to reduce the heated area the black cold connection ends can be reduced or lengthened if required See Fig 3 All Installation MUST comply with BS 7671 1
7. of the installer and the mat can not be returned for an alternate size Heating Mat Insulation see page 13 amp 14 ____ Flexible Tile Adhesive Sub Floor Wood Concrete Fig 3 The cable mat can be turned in any direction by cutting gt the mesh and rotating the roll Make Sure All Readings Are within 5 between Box Multimeter 9 Use Scissors to cut the mesh backing Not the cable The mat continue to be rolled out making sure the mat is not overlapped at any point The cable can be removed from mesh to cover small and awkward areas Small tabs of tape should be used to hold the loose cable in place Fixed Obstacle All recone MUST comply wa BS 7671 P wiring requirements electrica 3 Start the heating close to the thermostat location if possible If this is impractical the cold tail can be easily extended or shortened with a suitable electrical wire Slowly unroll the mat pealing the adhesive backing tape on the mat off as you proceed The mat must be firmly pressed onto the floor making sure the heating element is not twisted or stressed at any point 4 To turn the mat in any direction or return it back on itself the installer can cut through the mesh backing DO NOT CUT THE HEATING CABLE to allow the mat to be redirected in any direction See Fig 3 5 Alternatively if the area to be covered is an irregular shape or an obstacle has to be avoided the h
8. pipes Once the probe is fitted a resistance check should be carried out to confirm the probe is fully functional and the readings noted down on the warranty card See Fig 4 8 If multiple mats need to be installed all mats only of the same type can then be connected together into a suitable junction box A single suitable spur can then be taken from this ready to be wired in Depending upon the total load additional switching may be required to switch large areas loads See Fig 5 Fig 4 Thermostat Mains Live Feed AC230V ensor 3 Load Heating Cable s Fused Spur Max 30mm Underfloor Heating Systems nstallations IEE wiring regulations bu Single Core ilding regulations and any particular local electrical regulations 9 The heating system must be run via a residual current device RCD fitted in accordance with all current electrical regulations at time of installation All electrical connections should be carried out by a qualified electrician It is the installer electrician s responsibility to make sure the system is fitted correctly and any additional materials are suitable for use with the heating system installed Fig 5 Dual Core Underfloor Heating Systems 3 Core Cable ie Twin amp Earth Junction Box Coble Twin amp Earth m ge i Thermostat Location Thermostat Location Under Laminate Wood Vinyl amp Carpet Alu
9. 7th addition Part P wiring requirements for electrica 12 5 Before the cable is unrolled and fitted it is advised to mark the floor accurately showing precisely where the heating cable is to be laid This will allow the installer to accurately design the floor layout to best use the available cable making sure to keep even spacing s between cable runs See Fig 3 6 If possible start laying the cable working away from the thermostat location using small tabs of fixing tape or fixing clips to accurately lay the cable It is inadvisable to cover the entire cable with fixing tape as this will affect the screeds ability to fully envelope the cable The tape is only required to maintain a consistent spacing between cable runs to achieve an even floor covering until the screed is applied over It is important that cables are not laid too close together A minimum of 50mm should be maintained between cable runs If the heating cable is set too close touch or overlap at any point the cable may overheat 7 Once the heating is fitted the electrical resistance and continuity test should be repeated and noted down on the warranty page Make sure these readings are the same as the readings noted down during stage 2 The heating should also be tested after the screed has been laid There is no limit to how much the cable can be tested but to complete the warranty the heating must be tested before it is laid after being laid and after the covering screed has been
10. The insulation is 6m depth and comes as Im wide sheets x the length you require The next steps are listed to help guide you through the installation process Please note that tiles and stone flooring is not suitable for this insulation If tiles and stone are to be fitted then hard insulation or tile backer boards should be used Carpet Wood Overlay Duo N x For Use Under Carpet amp N Vinyl Flooring Vapour Barrier Heat Film Heat Foil Impact Plus Insulation Sub Floor 1 The sub floor whether concrete or wood Wood Concrete should be made suitable for the chosen floor covering prior to any insulation being fitted The sheets are designed to provide increased insulation levels not structural rigidity or floor levelling 2 Make sure the floor is clean dust and debris free Start by using either a double sided tape or spray contact adhesive to sufficiently cover the floor area where insulation is to be laid A full floor covering is t necessary as you only require sufficient hold the insulation in place while the floor covering is being fitted In small areas the insulation can simply be laid loose over the 7 floor Double sided tape or spray contact adhesive can be used under insulation or single sided tape used over insulation if needed to hold the insulation in place 4 Working in manageable sized areas lay the insulation over the floor area Each run should be butted together and cut ne
11. V0215 OMA HEATING Underfloor Heating For Use Under A 24 0 a RUCTIONS 2 Welcome to Roma Heating the underfloor heating specialists Roma Underfloor Heating systems are suitable for use under virtually any type of floor covering All Roma Heating systems are suitable for use as a primary heat source no radiators required or for just floor warming This assumes sufficient coverage and insulation is installed For further information on all underfloor heating systems and ancillary products please ask your supplier or visit our website www romaheating co uk e 1 2 Index amp Q amp A Page 3 4 Under amp Stone Loose Wire Heating Cables i 5 6 Under amp Stone Heat Mats 150w 200w sqm Sy Page 7 8 Under Wood amp Laminate 150w sqm Foil Heat Mats gt Page 9 10 Under Wood Laminate amp Carpet 200w sqm Heat Film c Page 12 In Screed Heating Cable Page 13 14 Hard Insulation boards Page 15 16 Backer Insulation boards Page 17 18 Impact Plus Insulation amp Duo Overlay Thermostats All our thermostats are suitable for use with all our underfloor heating systems All three thermostat options are rated at 1 6amps which will allows the units to control 3600watts without the need of any additional switching over l6amps 3600watts of heating is being installed either additio
12. a qualified electrician It is the installer electrician s responsibility to make sure the system is fitted correctly and any additional materials are suitable for use with the heating system in stalled installations IEE wiring regulations E regulations E any particular local electrical regulations Hard insulation boards 2 Underfloor hard thermal insulation boards designed for use directly under tile stone wood and laminate floors It can also be used under mosaic vinyl and carpet flooring but must first have a suitable 9 layer of flexible self levelling installed over prior to the vinyl or carpet being fitted The insulation comes in 6 10 amp 20mm depths The steps below are to help guide you through the installation process All floor types Wood Vinyl Carpet Tiles 9mm Flexible Self Flexible Tile Adhesiv Levelling Heating System Heating System Insulation Insulation Flexible Tile Adhesive Flexible Tile Adhesi Sub Floor Sub Floor Wood Concrete Wood Concrete Wood Carpet Vinyl Suitable Heating Overlay Duo System Insulation Suitable Heating _ System Sub Floor Insulation Wood Concrete Sub Floor Wood Concrete _ 1 The sub floor whether concrete or wood should be made suitable for the chosen floor covering ie tiles prior to any boards being fitted The boards are designed to provide increased insulation levels not structural rigidity
13. ace of the impact plus thermal insulation Heat Film Or Heat Foil Underfloor Heating System Step 1 Carpet Impact plus insulation Vinyl Hard insulation board Make sure the floor is clean level and suitable for the chosen floor covering Step 2 Once the insulation and heating is fitted make sure to follow the appropriate insulation and heating fitting instructions the first layer of boards can be fitted Make sure to stager all joints and cut the board tightly over the floor area If gripper rods are fitted then the boards can be cut within the gripper rod perimeter All joints must be taped together using the fibre tape provided Double sided tape is then fixed around the perimeter with additional lines fitted at 300mm spacing s The duo overlay must extend over the heating mats by a minimum of 50mm on alll sides Double Sided Fiber Tape Overlay Duo Fiber Tape Overlay Duo Tape Step 3 The second layer can then be fitted over and fixed to the first making sure to stagger all joi Additional double sided tape can be fitted tg the surface of the first layer if required to make sure all boards are well stuck dow and both layers are well bonded together Fiber Tape Double Sided Tape Step 4 A second layer of fibre tape should now be fixed over all joints on the second layer leaving the duo overlay ready to receive the final floor covering Carpet Vinyl Overlay Duo Fiber Tape Duo overlay
14. acturer s max recommended floor temperature must be programmed into the thermostat The thermostat installed must have a max default floor temperature setting and the thermostat must be set fo regulate floor temperature only via a suitable floor probe probes never run the thermostat on air temperature If floor temperature is not regulated correctly some floor coverings can be overheated and damaged Please refer to your thermostat instructions for max floor temperature settings When fitting carpet or vinyl as the final floor covering duo overlay must be fitted first Please see duo overlay fitting instructions toward the back of this book installations IEE wiring regulations In Screed Heating Cable for all floor 12 The Sub floor must be insulated with a suitable insulation clean sound and made ready to receive the screed covering prior to the heating cable being installed 4 2 Measure the floor accurately allowing for 100mm unheated border around the perimeter of the area Once measured make sure the heating cable is suitably sized for the area to be heated Typically most domestic in screed floors depending upon your requirements will be fitted with 160w 220w m To work out your floor system wattage Fig simply divide the heating systems total wattage by the total floor area to be heated The end figure should be between 160 220w m The
15. atly in around the edge of the room making sure to achieve a full floor coverage 5 If the insulation needs to be cut to size this is easily done with a sharp Stanley knife or scissors 6 Once the insulation is fitted the floor should be kept clean and tidy This is to make sure the insulation is not damaged or debris trodden into the surface which could affect or damage any subsequent layers fitted over the insulation 7 Carpet Flooring Depending upon what type of gripper rod is being used it can be advantageous to install a 50mm strip of 6mm MDF or similar board around the perimeter of the room prior to fitting the insulation The insulation can then be fitted into the well created to leave a level floor This allows the gripper rod to be fitted onto the 6mm perimeter boarding which will help the carpet fitter to easily hook the carpet over the gripper rods All naa ation MUST comply a BS 7671 A aa Part P wiring requirements electrica Overlay Duo For Use Under Carpet amp Vinyl Flooring Duo overlay is designed for use under carpet and vinyl flooring It is designed to provide a strong stable layer for carpet and vinyl to be fitted over while protecting the heating and insulation fitted under When used with impact plus insulation underlay is not needed if carpet is to be fitted If underlay is fitted it must be 0 8 tog or lower If vinyl flooring is to be fitted over the heating then hard insulation boards should be fitted in pl
16. d also be tested and results recorded after the flooring has been fitted There is no limit to how much the cable can be tested but to complete the warranty the heating must be tested before it is laid after being laid and after the floor covering has been installed All figures must be accurately recorded See Fig 2 8 The floor probe supplied with the thermostat should now be fitted The probe must be installed between 2 heating wires but no more than 30mm away from one cable Make sure when Thermostat Fig fitting the probe no other heating or cooling sources can influence the floor probe such as hot water pipes Once the Mains probe is fitted a resistance check should be carried out to Live Feed confirm the probe is fully functional and the readings noted AC230V Sensor down on the warranty card See Fig 4 N Fig5 Load Heating Cable s Dual Core SSeS Fused Spur Underfloor Heating npe ON Junction Box Max 30mm Single Core 9 If multiple cables need to be installed all cables only of the same type can then be connected together into a suitable junction box A single suitable spur can then be taken from this ready to be wired in Depending upon the total load additional switching may be required to switch large areas loads See Fig 5 3 Core Cable ie Twin amp Earth 10 The heating system must be run via a residual 2 Underfloor Heating
17. eating cable can be detached from the mesh backing and laid loose This will allow the cable to be laid in any direction and a suitable fixing tape can then be used to hold the cable in position ready for the subsequent floor covering to be installed over When laying the heating cable loose a consistent spacing between cable runs must be maintained the same spacing as when attached to the mesh backing to achieve an even heat output across the floor It is important that cables are not laid to close together A minimum of 50mm should be maintained between cable runs If the heating cables get too close touch or overlap at any point the cable may overheat See Fig 3 6 Once the heating is fitted the electrical resistance and continuity test should be repeated and noted down on the warranty page Make sure these readings are the same as the readings noted down during stage 2 The heating should also be tested after the flooring has been fitted There is no limit to how much the cable can be tested but to complete the warranty the heating must be tested before it is laid after being laid and after the floor covering has been installed All figures must be accurately recorded 7 The floor probe supplied with the thermostat should now be fitted The probe must be installed between 2 heating wires but no more than 30mm away from one cable Make sure when fitting the probe no other heating or cooling sources can influence the floor probe such as hot water
18. ed to be installed all mats only of the same type can then be connected together into a suitable junction box A single suitable spur can then be taken from this ready to be wired in Depending upon the total load additional switching may be required to switch large areas loads See Fig 5 9 The heating system must be run via a residual current device RCD fitted in accordance with all current electrical regulations at the time of installation All electrical connections should be carried out by qualified electrician It is the installer electrician s responsibility to make sure the system is fitted correctly and any additional materials are suitable for use with the heating system installed Thermostat Fig 4 Mains Live Feed lt Fig 5 AC230V Load Heating Cable s Underfloor Heating Systems Junction B Fused Spur 3 Core Cable ie Twin amp Earth aia Thermostat Location is Under Wood Laminate Vinyl amp Carpet Heat Film 1 The sub floor must be clean sound and suitable for the chosen floor covering prior to laying the heating 6mm impact plus thermal insulation or had insulation boards must be installed over the sub floor prior to fitting the heating see insulation fitting instructions Please note the max tog rating for underlay is 0 8 tog and for carpet is 2 tog 2 8 tog Total No additional coverings flat bott
19. er increased to increase the heated area or reduced to reduce the heated area Only the black cold connection ends can be reduced or lengthened if required All Installation MUST comply a BS 7671 P wiring requirements electrica 5 Before the cable is unrolled and fitted it is advisable to mark the floor accurately using the results from stage 4 showing precisely where the heating cable is to be laid This will allow the installer to accurately design the floor layout to best use the available cable making sure to keep even spacings between cable runs See Fig 3 6 If possible start laying the cable working away from the thermostat location Using small tabs of fixing tape accurately lay the cable It is un advisable to cover the entire cable with fixing tape as this can affect the performance of subsequent adhesives to adhere sufficiently to the sub floor The tape is only required to maintain a consistent spacing between cable runs until the levelling adhesive is applied over It is important that cables are not laid too close together A minimum of 50mm should be maintained between cable runs If the heating cable is set to close touch or overlapped at any point the cable may overheat 7 Once the heating is fitted the inulation resistance and electrical continuity test should be repeated and noted down on the warranty page Make sure these readings are the same as the readings noted down during stage 2 The heating shoul
20. etween 140 200w m The length of the cable and total system watt found on the outer box s cable spools 7 Fig 2 D 52 N w Fig 1 Tile Flexible Tile Adhesive Heating System Insulation see page 13 8 14 Flexible Tile Adhesive Sub Floor Wood Concrete 3 Before the cable is unrolled it must be tested for continuity and resistance Mark this reading down on the back warranty page of this manual See Fig 2 IMPORTANT If the cable is incorrectly sized or the resistance readings do not match the test results on the box label stop and return for the correct size Once the cable is unrolled over the floor it becomes the responsibility of the installer and the cable can not be returned for an alternate size Loose Wire Floor Layout For Kitchen Type Area g Th tat Floor Probe Heating Cable Fixing Tape 4 Using the figures worked out in stage 2 the spacing s between cable runs are worked out by A Divide 1000 by the length meters of the heating cable B Multiply A by the size of the area you are heating in m The final figure is the spacing in mm the cables should be spaced out at Please note the figure should be somewhere between 50 80mm This figure is a guide and small adjustments may be required to the final spacings to achieve the best coverage The cable must NOT be cut or reduced in length The spacings between cables are eith
21. f vapour barrier folds out to be 4m in width This like the heating mats can be held in place with the tape provided See Fig4 Thermostat Junctionbox Non Heating Wires If the final flooring is not to be fitted for some time the heat mats should be protected from damage with a suitable protective layer Fig 3 Thermostat Be Tabs of tape Heat Mats Impact Plus Insulation Fig 4 Resistance Check Live To check heat film mat resistance in Ohms Q please follow the Floor Probe equation below Heat Film 250 SQM of mat x 0 95 10 apour Barrier The reading must be within 10 if not test the mat again or call technical for assistance The cold tails on each mat can be extended or shortened on site please consult your electrician as this will depend on mat layout and total heating load 8 Once all the mats have been installed they must be retested See step 3 The heating is now ready to have the final floor covering installed over The heating must also be tested after the flooring has been fitted There is no limit to how much the heating can be tested but to complete the warranty the heating must be tested before it is laid after being laid and after the floor covering has been installed All figures must be accurately recorded Depending upon the total load additional switching may be required to switch large areas loads 9 Before the heating is turned on the floor manuf
22. facture The tiling should be carried out in the normal way making sure to fit the tiles with a full bed of adhesive never dot and dab tiles 8C Fitting vinyl carpet or mosaics When fitting non interlocking rigid sheet material over the insulation boards 9 mm layer of flexible levelling compound should first be fitted over the insulation This will provide protection from high point loads as it will spread the weight over the insulation surface allowing the subsequent layers to be fitted The levelling should be fitted in accordance with the manufacturer s instructions installations IEE wiring regulations Cementatious Tile Backer Boards Wall and Floor Boards Cementatious tile backer boards are designed to insulate and water proof walls and floors Ideal for wet room installations the boards can be used directly under tile stone wood and laminate floors can also be used under mosaic vinyl and carpet flooring but must first have a 9 layer of flexible self levelling installed over prior to the vinyl or carpet being fitted The insulation comes in 6 10 amp 20mm depths The steps below are listed to help guide you through the installation process 1A If you are fitting tile backer board to a floor loosely or with tile adhesive please follow the instructions on page 13 14 Hard insulation boards Tile Flexible Tile Adhesive 1B If you are screwing the
23. installed All figures must be accurately recorded 8 The floor probe supplied with the thermostat should now be fitted The probe must be installed between 2 heating wires but no more than 30mm away from one cable Make sure when fitting the probe no other heating or cooling sources can influence the floor probe such as hot water pipes Once the probe Fig 4 Thermostat is fitted a resistance check should be carried out to Mai confirm the probe is fully functional and the readings Wans noted down on the warranty card See Fig 5 Live Feed Sensori AC230V l Load Heating Cable s Fused Spur Underfloor Heating Systems Junction Box Max 30mm 3 Core Cable 9 If multiple cables need to be installed all cables only of ie Twin amp Earth the same type can then be connected together into a suit able junction box A single suitable spur can then be taken from this ready to be wired in Depending upon the total load additional switching may be required to switch large areas loads See Fig 5 Thermostat Location 10 The heating system is now ready to have either flexible 20 75mm self leveling compound or screed installed over in accordance with the adhesive manufactures instructions The heating must be run via a residual current device RCD and connected to the mains power in accordance with all current electrical regulations at time of installation All electrical connection should be carried out by
24. ion The end of the probe should not be covered Make sure when fitting the probe no other heating or cooling sources can influence the floor probe such as hot water pipes Once the probe is fitted a resistance check should be carried out to confirm the probe is fully functional and the readings noted down on the warranty card See Fig 2 4 Floor Probe 5 Lay the heating mats over the insulation COPPER BAR DOWN making sure the mats do not overlap at any point Tape can be used on the ends and edges to hold the mats in place All cold tails and connection points to the heating mats must be scored into the insulation and taped over which will leave a flat level floor layer for the floor covering to be installed over 6 The mats must always be connected in parallel NOT series If multiple mats are used it is recommended to run all the cold connection wires back to one point This will allow the installer at a later date to join all live wires together and all neutral wires together in a suitable junction box One spur can then be taken from the junction box to the thermostat See Fig 3 All Installation MUST comply with BS 7671 17th addition Part P wiring requirements for electrica Thermostat Non Heating Wires 7 Once all the heating mats have been laid in place the vapour barrier can be fitted over The vapour barrier does not have to cover the entire area only the heat mats themselves Please note every 1 meter o
25. l tape Use the aluminium tape provided to cover both sides la of the mats and any exposed lt 1 wires to maintain the heat distribution and full earthing of the whole mat 8 E i Make Sure All Readings Are within 5 off Box Multimeter All MUST comply a BS 7671 a odin Part P wiring requirements electrica 3 Start the heating as close to the thermostat location as possible If this is impractical the cold tail can be easily extended with a suitable electrical wire Slowly unroll the mat using the foil tape to hold the mat in place All exposed cables at the side of mats must be covered with the foil tape provided As you proceed the mat must be laid flat making sure the heating element is not twisted or stressed at any point 4 To turn the mat in any direction or turn it back on itself the installer can cut through the mesh foil backing DO NOT CUT THE HEATING CABLE to allow the mat to be redirected in any direction See Fig 3 5 Alternatively if the area to be covered is an irregular shape or an obstacle has to be avoided the mat can be cut several times into strips the cable must never be detached from its foil casing This will allow the thin strips of cable enveloped in the foil to be laid in any direction The foil tape must then be used to cover any exposed wire and join all strips and mat runs together Exposed wire can cause hot spots also disrupt the earthing continuity between
26. minium Foil Heating 1 The Sub floor must be clean sound and suitable for the chosen floor covering prior to laying the heating Impact plus 6mm insu lation or hard insulation boards must then be installed over the m mef HEAT a woo x sub floor prior to fitting the heating see insulation fitting instructions 2 Measure the floor accurately allowing for a 100mm unheated border around the perimeter of the area Once 1 measured make sure the heating mat is a suitable size for the area The mat size and wattage can be found on the outer box and heating mat The mat should also be tested for continuity and resistance at this stage The readings should be noted down on the back warranty page of this manual See Fig 2 Fig IMPORTANT If the mat is incorrectly sized or the resistance readings do not match the test results on the box label Carpet Vinyl stop and return the mat for the correct size Once the mat is Wood unrolled it becomes the responsibility of the installer and the mat not be returned for an alternate size Vinyl Flooring Heat Foil Insulation Sub Floor Wood Concrete Use Scissors to cut the mat Not the cable Fig 3 J J The cable mat can be turned in any direction by cutting the mat and rotating the roll JU B Uncovered Heating Cable Cover with foi
27. nal thermostats or relay switch sometimes known as a contactor should be installed to carry the load Colour Touch Screen Thermostat Digital Thermostat Manual Thermostat All Installation MUST comply with BS 7671 17th addition Part P wiring requirements for electrica Frequently Asked Questions Can use this as a primary heat source do still need radiators All our underfloor heating systems have been designed to be suitable for use as the primary heat source no radiators required This is providing you install a minimum of 150w m2 system over 70 of the floor area Also the floor and room must have suitable insulation levels which will then mean no additional heating will be required Can cut the cable or mat if have too much When considering what size system you require it is important not to over order as the heating cannot be cut down to fit A good rule of thumb is to order approximately 80 of the total floor area This will allow you to easily fit the heating system leaving only a small unheated border around the room edge The heating cable must never be cut or reduced in length Subfloor Construction Do need insulation How long will it take to warm up Plywood 35 minutes Although not a necessity over wood sub floor insulation will still greatly increase the response rate and overall Plywood 10mm HIB 15 minutes efficiency of all underfloor heating systems When installing heating over a co
28. ncrete subfloor we highly recommend the 2 4 Hours use of a suitable insulation as un insulated concrete will drain the heat from the heating system The table opposite shows some approximate timing s Concrete in Screed Un insulated Concrete 2 8 Hours 5 15 underfloor heating expensive to run Cancale Worm tle 50 Underfloor heating is most efficient way to heat an area due to the even heat distribution from the floor up This helps to keep the heat at a low effective and usable level Studies have shown that when a person s feet are warm they perceive the environment to be warmer than when their feet are cold Because of this the ambient temperature of the room can then be lowered without the person feeling cold which reduces the running cost of the heating but still providing the occupant with a more consistent and comfortable heat distribution Can fit the heating and will it require maintenance Electric underfloor heating does not require any specialist labour or equipment to install or maintain the system other than a qualified electrician to make the final connections to the mains power With a little patience and common sense most competent DIY enthusiasts would be able to install our underfloor heating systems with ease Unlike other forms of heating electric underfloor heating requires no maintenance once installed With no moving parts no excessive heats or leaks fo consider once installed and pr
29. om furniture or highly insulated objects such as rugs bean bags should be fitted over heated floor areas 2 Before laying the heating the floor should be measured accurately and a plan done to show where the individual mats are to be laid All heat film mats are made to the customer s measurements If a proposed mat layout was produced and agreed this can now be followed which will show which mats are to be laid in which areas If a proposed mat layout was not agreed the mat sizes would have been produced according to the customers stated mat sizes See Fig 2 uo Overlay Vapour Barrier 3 Once the mat layout has been determined Heat Film the mats must be tested for continuity and resistance at this stage The readings must be checked off and noted down on the back of the warranty page of this manual All readings must be within tolerance IMPORTANT Once the mat is unrolled and taped to the floor it becomes the responsibility of the installer and the mat can not be returned for an alternate size Fig 2 Impact Pluss Insulation Sub Floor Wood Concrete Wood Laminate Vapour Barrier Heat Film Impact Pluss Insulation Sub Floor Wood Concrete 4 The floor probe supplied with the thermostat should now be fitted The probe must be installed directly under an area that will have a heat mat laid over The probe must be scored into the floor insulation and taped in place leaving it flush with the insulat
30. otected by the floor covering our underfloor heating can provide a lifetime of hassle free heating How do you control the heating All our underfloor heating systems should be controlled with a suitable thermostat There are various thermostat op tions but all options control the heating through the same principle Mains 220 240v power 15 fed through the ther mostat to the heating system as and when needed The user will set a desired temperature and the thermostat will switch the power on and off accordingly to the heating system as and when needed to achieve and maintain the set temperature installations IEE wiring regulations regulations E any particular local electrical regulations Loose Wire Under Tile amp Stone Heating Cable 1 The sub floor must be clean sound and suitable for the chosen floor ig to laying the heating We highly recommend the use of a suitable insulation VE over concrete and uninsulated sub floors 2 Measure the floor accurately allowing for 1 unheated border the perimeter of the area Once measured make sure the heating cable is suitably sized for the area to be heated Typically most domestic loose wire systems depending upon your requirements will be fitted with 140w 200w m To work out your floor system wattage simply divide the heating system total wattage by the total floor area m to be heated The end figure should ideally be b
31. r making sure to achieve a full floor coverage It is good practice to stagger joints between boards and if necessary the flexible floor adhesive can be used to fill any small gaps between boards 5 If boards need to be cut to size this is easily done with a 6 Once the boards are laid and the adhesives set care should be taken not to apply excessive point loads to the insulation until the tiles or levelling has been installed Small dents and damage caused to the surface of the boards are quite normal and of no concern If however the boards are to be left exposed for long periods of time or other work is to be carried out over the boards they should be covered with sheets of ply or other hard sheet material to minimise the chance of damage 7 It is advisable to fit the final floor covering as soon as possible once the insulation has been installed When fitting the chosen final floor covering it is advisable to work on top of a hard board This will help prevent damage to the insulation when the work is being carried out 8A Wood and laminate flooring If not following step 2A Both under floor heating and wood type tongue and grove flooring can now be fitted directly over the insulation in accordance with the manufactures fitting instructions 8B Tile amp Stone Flooring Tiles measuring 150 150 or bigger can be fitted directly over the insulation A suitable flexible tile adhesive should be used as directed by the adhesive manu
32. rther to pull them flush with the board surface Make sure not to over tighten these screws discs 8B Tile amp Stone Flooring All tiles can now be fitted directly over the insulation A suitable flexible tile adhesive should be used as directed by the adhesive manufacture The tiling should be carried out in the normal way making sure to fit the tiles with a full bed of adhesive never dot and dab tiles If Mosaic tiles are to be fitted a scrim tape should be fitted over all board joints to provide extra support 8C Vinyl amp carpet When fitting non rigid sheet material over the insulation boards first a 8mm layer of flexible levelling compound should be fitted over the insulation This will provide protection from high point loads as it will spread the weight over the insulation surface allowing the subsequent layers to be fitted The levelling should be fitted in accordance with the manufactures instructions In high traffic or commercial areas all board joints should have a scrim tape applied prior to the levelling being fitted 8D Wall tiles should be fitted in the normal way making sure to use full bed of adhesive The adhesive should be a flexible wall adhesive and applied mixed in accordance with the manufactures instructions installations IEE wiring regulations 16 Impact Plus Thermal Insulation _ Impact plus thermal insulation is designed for use directly und wood laminate and carpet type floors
33. s Name Contact Number NICEIC registration number Email Test Heating Unit 1 Size Heating Unit 2 Size sqm Heating Unit 3 Size sqm 2770 a Heating Unit 5 Size sqm Heating Unit 6 Size sqm Insulation resistance N A To Heat Film Heating element resistance After Laying ee N Before laying 2 Please use and attach separate sheets if Floor sensor resistance multiple systems are being installed formatted Complete Your Registration PAAA A oe To activate the free warranty log onto www romaheating co uk warranty php within 3 months of pur chase and 30 days of installation date PLEASE RETAIN THIS FORM WITH YOUR UNDERFLOOR HEATING SYSTEM Insulation resistance a ais S Before covering Q Q After installing flooring Q Q Q
34. t to the floor surface to avoid any bounce as this could adversely affect subsequent layers 5 If boards need to be cut to size this is easily done with a sharp Stanley knife 6 If the boards are to be used to tank a room then we recommend the use of our aqua seal tape to be applied to all joints as per the aqua seal jointing tape instructions 6 Once the boards are fitted care should be taken not to apply excessive point loads to the insulation until the subsequent surfaces have been installed Small dents and damage caused to the surface of the boards are quite normal and of no concern If however the boards are to be left exposed for long periods of time or other work is to be carried out over the boards they should be covered with sheets of ply or other hard sheet material to minimize the chance of damage 7 It is advisable to fit the final floor covering as soon as possible once the insulation has been installed When fitting the chosen final floor covering it is advisable to work on top of a hard board This will help prevent damage to the insulation when the work is being carried out 8A Wood and laminate flooring Both underfloor heating and wood type tongue and grove flooring can now be fitted directly over the insulation in accordance with the manufactures fitting instructions Care should be taken to avoid leaving any high spots caused by the screws fixing discs If these screws discs are a problem they can be screwed down fu
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