User Manual

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BVF WFD 10-20 SERIES installation and user manual
ENG
ENG
2.2 BVF WFD typical installations and applications
Figure 1.: Embedded in concrete
1. Ceramic tiles
2. Concrete + BVF WFD heating cable
3. PE humidity barrier
4. Floor insulation
5. Foundation
Alternative methods: self-leveling cement is recommended for large surfaces and the following floor
materials: engineered wood, laminate, floating floors, vinyl, linoleum and carpet.
I
WARNING
Consult the manufacturer for information on special installation requirements for wood, laminate and
vinyl or linoleum flooring.
i Important
• Read the instructions carefully before installing BVF WFD system.
• Remember to measure the resistance four times.
• Only for indoor installation. Do not install the system on walls or ceilings.
• The cable must be embedded in mortar, thin-set, concrete or similar material.
• The minimum installation temperature is 5°C.
• The heating cable cannot be cut to length, crossed over itself, or installed too close.
• It is recommended to use copper wire only.
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3 DESIGNING FLOOR HEATING AND CHOOSING THE PRODUCT
3.1 Design the Installation
Step 1: Measure the heated area
Determine the heated area of the floor where there are no permanent fixtures or furniture such as showers,
toilets, vanities, or cabinets. Measure the heated area of the floor. For example, in Figure 3.1, the area of
the bathroom is 8.75 m
2
. When you subtract the area of the vanity, shower and toilet, the total heated
area is only 6.45 m
2
.
Step 2: Determine the power supply voltage
Make sure the supply voltage was 230 V. If it was not, contact to your supplier for enlargement.
Step 3: Plan the design
Determine the optimum floor heating cable layout for your heated area to ensure coverage. Select a spot
for the thermostat in the wall above the heated area where it can be reached by the 2.5m cold lead on the
BVF WFD cable, and the floor temperature sensor. Please refer to Figure 3.
i Important
The predetermined spacing must be maintained to ensure proper floor heating. Do not change the
heating cable spacing when you lay out the cable or the floor may have cold spots.
Figure 2.: Calculating the heated area