User Manual

10 11
BVF WFD 10-20 SERIES installation and user manual
ENG
ENG
4 INSTALLATION
i Important: Tools and materials required
You will require the following items to install and test the floor heating system:
• Scissors
• Utility knife
• Wire strippers
• Tape measure
• Screwdriver
• Multimeter
• BVF Fixing strips or wire mesh
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 thermostat.
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. Unroll the first few feet of the BVF WFD. The starting point of the cable must be placed within
2.5m from the thermostat.
i Important
Mark the position of the connection point between the power lead and the BVF WFD heating cable.
This connection must be concealed in thin-set or self-leveling cement. When using a floor
temperature sensing thermostat, mark the sensor position in the middle of two heating cables, at least
about 25cm away from the wall (within the heated area), as close as possible to the thermostat.
3. Install floor sensor
If using a floor temperature sensing thermostat,
install the sensor now, preferably in conduit tube,
or directly to the subfloor. It is recommended
that the sensor be installed in conduit tube. This
will allow the sensor to be easily replaced in the
unlikely event of failure. The sensor and/or tube
needs to be installed between the thermostat wall
box and the sensor position. The conduit tube must
be partially countersunk into the subfloor.
i Important
The sensor conduit must be centered in the cable loop (between two heating wires). Use duct tape to
close the end of the conduit so that thin-set can’t penetrate the conduit. Use duct tape to hold the sensor
conduit into the groove to prevent it from floating up when the mortar or thin-set is poured. If the sensor
is installed directly in the mortar bed, use duct tape to secure to subfloor.
4. 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.
5. Measure the resistance (first time)
Use a digital ohm meter to measure the resistance of the BVF WFD heating cable and compare it to the
table. 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.