Ensto EFHFM160.9 [8/36] Installation

8

RAK118 / © Ensto 2018

INSTALLATION

Remove the old ooring, if necessary. Level uneven oor surfaces before installation. Spread primer on the

oor to ensure a proper adhesion of the heating mat and the new layer of concrete. Clean the oor carefully.

Carry out FinnMat installation according to the gures on pages 2 - 5:

1. Plan and draw the size and location of the heating mat. Carefully mark the positions of the connection

point at the “cold” end, the opposite end, and the sensors. Keep this drawing with your other electrical

drawings.

the heating cable. Roll out the heating mat with the adhesive side of the mat towards the oor. The

adhesive prevents the mat from moving during casting. Push the cold end of the cable into the exible

plastic tube. Extend this installation tubing to the junction box. The connector cable must not cross the

heating cable or touch it. Make sure, that the thermostat sensor is in the centre of a loop, and that the

sensor cable neither crosses nor touches the heating cable.

5. If you need to cut the heating mat, make sure not to damage the heating cable.

6. Floor drains, sinks etc. can be bypassed as shown in the drawing. If the cable is detached from the

mesh, the loose cable must be xed carefully to the oor for example with aluminum tape.

7. Measure the heating cable’s loop resistance (Rj) and insulation resistance (Re) before casting. Repeat

these measurements after casting. Enter the measurement results and other information in the mea-

8. If you install the heating mat in a room where no waterproong is needed, ignore stages 6, 7 and

8. On the market there is available material in which the liquid elastic membrane for water insulation

7 and reinforcement fabric 8 are combined. In this case, one layer is sucient. The method shown in

gure 8 for achieving water insulation is based on the requirements of “Finnish Building Construction

Authorities“. Water insulation should be carried out according to the national standards.

1 = Concrete slab

2 = Primer

3 = Levelling compound

4 = FinnMat heating mat

5 = Floor levelling-compound for heated oors

is equipped with a oor sensor and is suitable for controlling oor heating. Connect to the supply

circuit a fault current switch with a nominal operating current of max. 30 mA.