Danfoss heating cable mats Operating guide

		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
	Danfoss heating cable mat
	type 100/150
	Danfoss heating cable mats are primarily		Areas of use!
	used when renovating existing floors where		Danfoss heating cable mats 100 W/m2 can
	a low floor construction height is required.		be installed in wooden floors, plaster or con-
	Danfoss heating cable mat is only 4 mm		crete floors. Danfoss heating cable mats 150
	thick, plus the thickness of the floor surface.		W/m2 must only be installed on a concrete
	Danfoss heating cable mats 100 provides an		surface or similar.
			NB!
	output of 100 W/m2 per mat. If your require-
	ments exceed the m2 output of 100 W/m2		Must be installed in accordance with local
	e.g. in the case of badly insulated stone		building regulations.
	floors or old concrete floors in basements,		Must be connected by an authorised
	you may wish to use Danfoss heating cable		electrician.
	mats 150 which have an output of 150 W/m2.
	The required output should be determined
	by an authorised electrician.
	Danfoss heating cable mats
	specifications!
	Danfoss heating
				Connection
	cable mat:	EFTM
	Type:	2-conductor		Phase - Black
	Voltage:	230 Volt		Neutral - Blue
	Output:	100 or 150 W/m2		Earth - Shield
	Covers:	W = 500 mm
		L = See table
		T = approx. 4 mm
	Wire insulation:	FEP		CE
	Casing:	PVDF 90ºC
	Max. temperature:	90ºC
	Bending radius:	Min. 30 mm
	The insulation value of floors in which		• Thick floor with vinyl
	Danfoss heating cable mats DTIF has been			or similar		0.040 m2	K/W
	installed must not exceed approx. 0.125 m2		• Floor with parquet,
	K/W.			cork or carpet		0.125 m2	K/W
	Typical insulation values		• Heavy-duty fibreboard
				and wall-to-wall carpet		0.175 m2	K/W
	• Thin floor with tiles, vinyl 0.035 m2 K/W		• Wooden floor on battens			0.375 m2	K/W

08090213-01.01 09-2003

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.

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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.

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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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