Danfoss heating cable mats Operating guide

Danfoss heating cable mats specifications!
Danfoss heating cable mat: EFTM Type: 2-conductor Voltage: 230 Volt Output: 100 or 150 W/m
Covers: W = 500 mm
L = See table
T = approx. 4 mm Wire insulation: FEP Casing: PVDF 90ºC Max. temperature: 90ºC Bending radius: Min. 30 mm
08090213-01.01 09-2003
INSTRUCTION GB
Danfoss heating cable mats type 100/150 Danfoss heating cable mats for thin floors
NB! Read page 2 before installing the product if you intend to connect 2 mats to the same thermostat
The insulation value of floors in which Danfoss heating cable mats DTIF has been installed must not exceed approx. 0.125 m
K/W.
Typical insulation values
• Thin floor with tiles, vinyl 0.035 m2K/W
• Thick floor with vinyl or similar 0.040 m2K/W
• Floor with parquet, cork or carpet 0.125 m2K/W
• Heavy-duty fibreboard and wall-to-wall carpet 0.175 m2K/W
•Wooden floor on battens 0.375 m2K/W
Connection
Phase - Black Neutral - Blue Earth - Shield
CE
Danfoss heating cable mat type 100/150
Danfoss heating cable mats are primarily used when renovating existing floors where a low floor construction height is required. Danfoss heating cable mat is only 4 mm thick, plus the thickness of the floor surface.
Danfoss heating cable mats 100 provides an output of 100 W/m2per mat. If your require­ments exceed the m2output of 100 W/m
e.g. in the case of badly insulated stone floors or old concrete floors in basements, you may wish to use Danfoss heating cable mats 150 which have an output of 150 W/m2.
The required output should be determined
by an authorised electrician.
Areas of use!
Danfoss heating cable mats 100 W/m2can be installed in wooden floors, plaster or con­crete floors. Danfoss heating cable mats 150 W/m2must only be installed on a concrete surface or similar.
NB! Must be installed in accordance with local building regulations. Must be connected by an authorised electrician.
2
General Installation Guidelines
The following guidelines must be observed when installing Danfoss heating cable mats.
Preparation
1. All traces of old floor covering must be removed so that the concrete surface or the floorboards are visible.
2. Clean the surface and remove any loose particles.
3. The floor must be securely anchored to prevent it from shifting. Floor plaster is recommended for wooden floors to prevent the formation of cracks in joints and clinkers. The floor must be smooth in order to prevent any damage to the heat­ing mat.
4. The floor must be primed.
5. Any gaps in the floor around outflow pipes, floor drains and doorsills, or near the outer edges where the floor screed may penetrate, must be filled.
6. You are advised to draw up an installation plan before laying out the mats. Use page 9 in this manual to draw up a plan. Remember to indicate the sensor tube, connection tails and the connection to the cold cable.
NB!
Please consult the manufacturer for informa­tion on suitable temperatures if using Danfoss heating cable mats 100 under wooden floors the concrete layer must not be less than 5 mm on top of the cable.
Please note when using 2 mats!
The sensor must be positioned between the two mats as illustrated – this is important as it must be able to detect the temperature of both mats.
3
Installing the Danfoss heating cable mats
The heating mat should not be installed at room temperatures below 5°C.
The heating mat must be installed in accord­ance with the installation instructions.
Roll out the mat on the primed floor with the adhesive side on the bottom and the heating cable on the top.
Distribute the heating mat evenly across the floor surface, avoiding areas where the mat may be squeezed or damaged by screws, e.g. from the toilet. The heating mat should lie flush against the surface and be securely fastened to avoid any movement of the mat when the floor screed is laid.
If the heating cable mat is rolled out towards the opposite wall, the mat will need to be cut before being rolled back.
To do so, cut the mat material carefully with­out damaging the heating wire. Next, flip the mat over and roll it back parallel to the first length of mat, etc.
DO NOT CUT THE CABLE ONLY THE MESH.
NB!
The heating mat must not be shortened or exposed to mechanical stress.
The heating mat must not be fitted below objects that can produce heat, e.g. tumble driers. Please observe care when installing the mat and laying the screed in order to prevent damage to the heating mat.
When turning the heating mat just cut the mesh. Do not cut the cable.
Test the heating mat in accordance with the table on page 8 (resistance) before the screed is poured.
4
The flex tubing for the thermostat’s sensor should be positioned so that the sensor is located between the heating conductors on a clear patch of floor. A thermostat should always control the heated area.
NB! Do not fit under cupboards, bathtubs, or similar.
NB! Please see text and illustration page 2 if installing two mats on the same surface.
The flex tubing may be countersunk into the floor to reduce the floor construction height.
Seal the flex tubing at the end so that the screed cannot penetrate the tube.
The sensor cable and the cold cable for the heating mat should be connected to the thermostat box or directly to the thermostat located elsewhere in a convenient position, e.g. near your electric meter.
Test the ohm value of the heating mat before applying the screed.
When covering the mat with screed, please follow the manufacturer’s recommendations as regards the drying time of the screed.
Humidity seals and floor coverings such as vinyl and wooden floors require all moisture in the screed, depending on the thickness, to have been eliminated fully in accordance with the drying times recommended by the manufacturer.
The under floor heating must not be used until the screed has dried out fully, usually around 28 days.
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