Install Instructions

STEP 1: PLAN YOUR LAYOUT

Make a sketch of the area to be covered with heating TX-FH cables. Accurately measure the net

area of the floor. This is the area you would walk upon. Do not install heating cable under the

permanent fixtures. Select the cable spacing. Never space cables closer than 4” apart . Danfoss

recommends 6” standard spacing.

You should also plan the location of the thermostats, floor sensors locations and their conduit’s

location. The start of cables should be as close as possible to the thermostat’s final placement.

STEP 2: INSTALLING THE FLOOR SENSOR AND CONDUIT

STEP 3: MEASURE THE RESISTANCE OF THE HEATING CABLE

Using a digital ohm-meter, measure the resistance of the TX-FH cable. Compare the measured

value with the resistance listed on the label of the power lead.

Remember to record the measured resistances on the warranty card. Documenting the

resistance at each stage of the installation is required for warranty purposes.

STEP 4: INSTALLING THE TX-FH CABLE

Install the heating cable. You may need to install the cable strapping before installing the TX-FH

cable.

The power lead splice and and at least 12in (30 cm) of the power lead must be embedded in the

mass material. The remainder of the power lead should be in a conduit that extends to the

thermostat or contactor. The power lead may be extended if required.

Measure the resistance once again and record the information on the warranty card.

TIP: Danfoss recommends taking a picture of the cable layout and conduit placement during

installation. This can help in the unlikely case that the cables need repairs and for warranty

claims.

A floor sensor should be installed in a rigid conduit. The conduit protects sensor and facilitates

its replacement in the unlikely event of failure.

The sensor and the conduit may be installed in connection with the actual construction work

and connected at a later date. Please observe the following:

1. Ensure that the conduit is sealed before the concrete is poured.

2. The conduit must be positioned between the heating cables.

3. Place the sensor inside the tube until it reach

4. The floor sensor should be installed at least 10 to 15 in into the heated area.

5. The floor sensor has a standard 10ft (3m) lead that may be extended with 20 AWG wire.

es the end of the conduit.

Danfoss TX-FH Installation - Step by Step

TEL: 866-676-8062. FAX: 905-285-2055

NA.EFHTH-FHM- 07/2009