Installation Guide
7
Step 1: PLAN LAYOUT
Make a sketch layout or a floor plan of the room; include all permanent furnishings such as toilets, bathtubs,
appliances, cabinetry, etc. Indicate all dimensions
required to determine the available floor area and the
position of the Dr. Heater thermostat.
Important
Dr. Heater recommends that the installation is
documented with photos to note the location of
connections and the sensor.
Step 2: TRANSFER LAYOUT TO FLOOR
Draw an outline of the layout on the room floor including
a foot print of all furnishings that are not yet installed.
Step 3: PREPARE SUBFLOOR SURFACE
Clean and vacuum the floor thoroughly and remove dust
and debris from the floor that may damage the heating
cable. Ensure that the subfloor is secure and stable.
Carefully fill in all cracks to prevent any potential damage
to the new tiles resulting from shifts in the subfloor.
Step 4: LAYER THE MEMBRANE
Apply a compatible adhesive to the substrate using a
suitable trowel. Cut the membrane for suitable size and
uncoupling it. Lay the membrane on the adhesive. Press
the membrane evenly with a roller or a plastic flat trowel.
Check coverage of membrane, in case of partial coverage
increase the amount of adhesive or its fluidity. Then lay
the next sheet of membrane, making sure to align it with
the previous one without overlapping. Align the square
reliefs to facilitate the installation of the heating cables.
Warning:
If heavy mechanical loads are foreseen (frequent passages), it is recommended to protect the laid membrane
with wooden planks to ensure proper bonding.
Step 5: MEASURE THE RESISTANCE (THE FIRST TIME)
Use a digital ohm meter to measure the resistance of the Heat Cable and compare it to “Table1 or Table 2”.
Record the measured resistance on the warranty card. Documenting the resistance at each stage of installation
is required for warranty purposes. Also, measure the resistance between the white, black and shielding/ground
wire. Both should read infinity.
Please refer to “5 Commissioning” for instructions on how to measure the resistance.
Step 6: Start LAYING THE HEAT CABLE
DO NOT RUN THE HEATING CABLES UNDER WALLS, CABINETS, FURNITURE AND
APPLIANCES!