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Carbon Film  
Installation Instructions 

Page 2 

 

Cold Tail Joint

Cutting Marks

Insulation Tab

Cold Tail

Copper Conductor Strip

Clear Spoils

Product Overview 

Thank you for selecting our electric underfloor heating system. Before you begin installing please 

read through these  

instructions carefully

 & check that you have all the components required.  

The system requires a mains voltage 230V supply & must be connected in compliance with building regulation Part 'P'  
approved document and IEE 16th Edition 

Contents of Heating Kit: 
 

• 

Carbon heating film with cold connections made

  

• 

6mm Foam Insulation Underlay 

• 

Digital Programmable Thermostat 

• 

Floor Probe

 

• 

Floor plan showing element layout

 

• 

20Amp push fit cable connectors & connection box 

• 

Polyethylene Sheet (Moisture Barrier) 

• 

Factory test sheet with individual resistance readings 

• 

Warranty / Guarantee Certificate 

Important Notes: 

 
Due to their moisture content,  solid and kiln dried wood floor coverings should be laid, but not fixed, to allow acclimatisa-
tion with the heating system energised before final fixing.  Allowances should be made for expansion.  Refer to manufac-
turers instructions. 
 
Laminate and veneered/engineered flooring needs to have an allowance made for expansion. Refer to manufacturers  
instructions 
 
The Carbon Heating Film, when installed under a wood floor, will heat the floor to a temperature of 27°C. This is the limit 
to which most wood floors can be heated to. Consult wood flooring manufactures technical details for further information.  
Please note that the surface temperature of the wood flooring under rugs and flush or low profile furniture may exceed  
27°C if not monitored.  
 
If other floor finishes are to be installed over the carbon film, e.g. Carpet, Vinyl etc, a stable floating floor must be con-
structed.  Heat-Pak® flooring is recommended for this application, which is available from your underfloor heating supplier, 
to give a smooth and thermally conductive sub-floor. 

Summary of Contents for Carbon Film

Page 1: ...Page 3 Pre Installation Electrical Provision Page 4 Insulation Underlay Installation Page 5 Carbon Film Installation Under Wood Laminate Flooring Page 8 Notes Trouble shooting Carbon Film Installation...

Page 2: ...ue to their moisture content solid and kiln dried wood floor coverings should be laid but not fixed to allow acclimatisa tion with the heating system energised before final fixing Allowances should be...

Page 3: ...e heating is installed Make the electrical provision as per the diagram Fig 3 The circuit must incorporate a 30mA RCD protection For installations below 13Amp A fused spur or combined spur RCD is reco...

Page 4: ...anley knife or similar Step 2 Leave a gap of approximately 50mm at one edge of the room along where the cold cables are to be run so as to allow them to sit flush under the floor covering when it is l...

Page 5: ...d a coloured outer and a clear inner Carbon Film Installation Under Wood Laminate Flooring Only LIGHT FOOTWARE should be worn Avoid foot traffic on the heating elements and cold tail joints Un pack th...

Page 6: ...Step 7 Step 8 Fig 9 Step 9 Once the cold tails are in position a resistance test needs to be per formed on each individual element for a second time The desired resistance readings for each element ar...

Page 7: ...s being laid a 100micron sheet clear will be provided When fitting Heat Pak over a carbon heating sys tem a 200micron sheet coloured blue has to be used The joints of the sheeting have to overlap by a...

Page 8: ...ectrical contractor in respect of the individual heating circuit ratings relative to the thermostat rating circuit breakers interconnecting cable sizing and switched contactors where the load of the h...

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