Dimplex HM SF Montageanweisung Seite 6

Prior to embedding the heating mat in mortar, conduct an
insulation resistance test, i.e. measure the resistance of the
heating mat and record the value in the test/warranty chart.
The products suitable for laying the heating mats are
available from different manufacturers. Be sure to follow
the manufacturer's directions for the mortar product.
Installation on cement screed
1. Prime sub-floor and allow to dry.
● Fix self-adhesive heating mat to sub-floor surface
2.
and cover with flexible mortar or levelling compound.
As an alternative, first apply flexible mortar and press
the heating mat into the mortar with the heating mat
mesh backing facing down.
● If non-self-adhesive heating mats are used, apply
flexible mortar and press the heating mat into the
mortar bed with the plastic mesh backing facing up.
3. Allow mortar and levelling compound, if any, to dry.
4. Even out any irregularities using levelling compound
and allow to dry.
Installation on ceramic floors, artificial or natural
stone tiles
Existing floor coverings must adhere properly. Remove any
contamination such as wax or grease using household
cleaners or degreasing agents.
Proceed further as described under "Installation on cement
screed" (see above).
Installation on anhydrite floors
Anhydrite floors must be dry , maximum moisture content:
0.5 %. Surface may have to be roughened by sanding.
Apply self-levelling cement screed and allow to dry
thoroughly.
Proceed further as described under "Installation on cement
screed" (see above).
Installation on wood floors and chipboards
The floor must be free from vibrations and dry. Remove
any contamination such as wax or grease using household
cleaners or degreasing agents.
Rigid foam boards or polyester fiber boards should be
screwed or glued onto wooden floor boards.
Heating mats on wooden sub-floors must be embedded in
levelling compound or flexible mortar.
Proceed further as described under "Installation on cement
screed" (see above).
Floor covering
No additional coverings (e.g. throw rugs or carpets) should
be used over the heated area.
Ceramic tiles and natural stone are particularly well suited
for use with underfloor heating, but also textile, synthetic
material and parquet floor coverings can be used. As a rule,
the floor covering must always be laid using an adhesive
appropriate for underfloor heating.
Tiles as floor covering
Lay tiles with flexible mortar, then cut off protruding edge
insulation strip.
Grout tile seams, apply elastic silicone caulk around edges.
Textile or PVC floor covering
In the case of textile or PVC floor covering, the mat must
be covered with a layer of at least 10 mm of levelling
compound as a mechanical protection measure.
Continuous thermostability of levelling compound:
Minimum 50 °C.
Installation
The installation of the electric heating system may only be
carried out by a qualified, licensed electrician.
The heating system is to be provided with an all-pole
disconnect device with a contact gap per pole of at least
3 mm.
A Residual Current Device is to be provided as protection
against indirect contact (sensitivity ≤ 30 mA).
The floor sensing probe of the thermostatic controller must
be placed in a conduit sealed at one end and installed
directly into the heated floor area. Position floor sensor at
a point midway between heating cable runs.
Where heating mat cold tails transition from the floor to the
wall up to the connection box they must be protected in a
conduit.
The cold tail ends of each heating mat are connected to the
230V~ mains voltage via the control device.
The earthing braid of the heating cable must be connected
to the earth conductor. See also the Chapter "Connection
of the cold tails".
4
3
30c
2
1
Connection of the cold tails
The cold tail ends are to be connected to the wall
connection box in accordance with the schematic below.
black
L'
shield
PE
N
blue
transparent
L'
shield
PE
N
transparent
Caution!
Several heating mats must be connected in parallel!
The maximum permissible current at the switching contact
of the controller device must not be exceeded!
L' Terminal for connected phase (230V~) via controller
device (B1) e.g. temperature thermostat.
PE Terminal of shield of cold tail for line protection and
residual current monitoring.
N Neutral terminal of cold tail.
6
1. Heating mat
2. Floor sensor,
installed in conduit
3. Connection box
4. Control device
cold tail
HM ... SF
cold tail
HM ... TS