Under Floor Heating Cable - ECKINSTALLATION AND OPERATING INSTRUCTIONS Before starting installation read these instructions and the 'Frequently Asked Questions' thoroughly. Retain the instructions for reference. 1. Personnel. EHM and ECK should be installed by a suitably qualified, professional
builder and/or electrician. EHM and ECK are not ‘do it yourself’
products. 2. Check the suitability of sub-floor. EHM and ECK can be installed onto concrete or wooden sub-floors. We do not recommend installation onto asphalt sub-floors or any insulation material other than rigid boards. 3. Check the suitability of the tile adhesive. EHM and ECK are designed to sit in a layer of adhesive below ceramic or stone tiles. Both EHM and ECK have been used with a wide variety of tile adhesives. We suggest that the suitability of any given adhesive be confirmed by the adhesive supplier. If preferred both EHM and ECK can be buried in a layer screed. If you intend to use a compound other than a cement screed, the suitability of the compound should be confirmed by the compound supplier. 4. Check the suitability of the floor surface. EHM and ECK are suitable for use with ceramic and stone floors, including slate and marble. They should not be used with surfaces such as wood and vinyl or under carpeted areas. 5. Check that you have the correct EHM mat or ECK cable Firstly you must calculate the area of floor to be heated. This will be
the total floor area minus the area occupied by fixtures such as
cupboards, sinks, baths etc. If you are using an ECK cable kit, refer to
the schedule of kits and ensure that the minimum ‘area to heat’ shown is
no greater than your calculated area. The G16C controller has a switching capacity of 16A. If you intend to control a load greater than 16A, more than one controller will be required. 7. First electrical check Before starting installation and before unrolling the mat or cable, the resistance of the cable should be measured and recorded on the Installation Record Form. Ensure that the reading taken is consistent with the nominal output of the cable. An insulation resistance reading should also be taken between either end of the cold lead conductor and the earth braid using a 500V dc Insulation Resistance Meter (Megger). Readings in excess of 20 meg-ohms are acceptable. Again the reading should be recorded on the Installation Record Form NEVER APPLY POWER TO THE CABLE WHILE IT IS ROLLED UP 8. Check and preparing the sub-floor Ensure that the surface of the sub-floor is clean and free from any debris or sharp objects and suitable primer should then be applied. 9. Cutting a groove for PVC pipes Both the controller probe and cold lead should be run through a plastic pipe of an appropriate diameter (typically 10mm diameter plastic hose). This is particularly important where the probe or cold lead pass from the floor to the wall. To keep the floor level as low as possible, grooves can be cut into the sub-floor to accommodate these pipes. 10. Positioning the controller probe The controller probe should be mounted in a plastic pipe. The end of the probe should be a minimum of 500mm from the wall and 30mm from a heating cable. Remember to seal the end of the plastic tube with tape to prevent ingress by the adhesive. 11. Laying the EHM mats or ECK cable An EHM mat has four strips of tape running along its length. The two
outside strips are double sided and these should be used to fix the mat to
the primed sub-floor with the cable side up. It is essential to avoid mechanical damage to the heating cable. If it
is impossible to avoid walking on the cable, use soft-shoes and/or
crawling boards. 12. Second electrical check Once the mat or cable has been laid onto the sub-floor and before the adhesive dries, the following checks should be performed. All results should be recorded on the Installation Record Form a. Ensure that the resistance reading (ohms) is as recorded after the
first electrical check 13. Apply the tiles 14. Third electrical check Once the tiles have been applied, the following checks should be performed. All results should be recorded on the Installation Record Form. a. Ensure that the resistance reading (ohms) is as recorded after the
first electrical check 16. Electrical connection The electrical connection instructions supplied with the controller should be followed. It is essential that the total load controlled by a single controller does not exceed 16A. 17. Energising The system should not be energised within 28 days of the floor surface being laid. To do so may damage the heating cable. 18. Warranty Assuming correct installation, EHM and ECK will give many years of satisfactory service. In the unlikely event of a malfunction resulting from faulty manufacture, Warm Tiles is guaranteed for 12 months from date of purchase. The guarantee covers the full purchase price but not the cost of repairing or replacing the heating mat in the floor. An Installation Record Form is supplied with each mat. This should be completed at the time of installation and posted to BN Thermic within 60 days of installation. Warranty claims will not be considered if the form has not been returned to us within the required time. |