WarmlyYours TempZone Floor Heating Cable (Twin) - Manual (Page 5)

2.1 General Precautions Before Installation of the TempZone™
Floor Heating Cable (Twin)
2.1.1 TempZone™ Floor Heating Cable (Twin) must NOT touch, cross over, or overlap itself at any point.
This could cause the cable to overheat. Use TempZone™ Cable Fixing Strips to avoid bunching or crossover of the cable.
2.1.2 Do NOT cut the TempZone™ Floor Heating Cable (Twin). Altering the cable length may result in overheating and damage
to the cable. Ensure that you order the correct cable length for your installation.
2.1.3 Take precautions to avoid damage to the TempZone™ cable during installation. Do not drop sharp objects or carelessly
step on the cable. Do not bang the trowel on the heating cable while applying mortar.
2.1.4 If you are replacing a floor with an existing floor heating system, completely remove old mats and/or cable before
installing new the TempZone™ Floor Heating Cable (Twin).
2.1.5 TempZone™ floor heating cables should be separated from other heat sources. Per the National Electric Code, section
424.39, heating elements of cables must be separated at least 200 mm (8 in) from the edge of outlet boxes and junction
boxes that are to be used for mounting surface luminaires. A clearance of not less than 50 mm (2 in) shall be provided
from recessed luminaires and their trims, ventilation openings and other such openings in room surfaces. No heating
cable shall be covered by any surface-mounted equipment.
2.1.6 Do not install TempZone™ Floor Heating Cable (Twin) when the ambient temperature is below 5ºF (-15ºC).
2.1.7 If using a thermal insulation underlayment between the self-leveling underlayment-encased cable and the final floor
covering (carpet, in U.S. only, or laminate), use a product with a typical R-value of 0.027 or less.
2.1.8 WarmlyYours recommends using CeraZorb® underlayment when installing cable over a concrete floor or slab to allow a
greater percentage of heat generated to transfer to the flooring surface.
2.1.9 The bending radius of the TempZone™ Floor Heating Cable (Twin) during installation should not be less than 25 mm (1
in).
2.1.10 The cold lead is 15 feet long. WarmlyYours recommends allowing 12 inches of cold lead wire to extend from the
thermostat box to facilitate easier thermostat connection. Any excess cold lead may be trimmed. Please follow all national
and local electric codes.
2.1.11 Center the floor thermostat sensor between two adjacent runs of TempZone™ Floor Heating Cable (Twin). Do not locate
floor thermostat sensor closer than 1 inch to the cable or allow it to overlap any other cable.
2.1.12 Carpet and laminate manufacturers may recommend a maximum limit for the temperature setting on the thermostat of
86ºF (30ºC).
2.1.13 Do not install the TempZone™ Floor Heating Cable (Twin) under permanent fixtures (e.g. cabinets, bathtubs).
2.1.14 Allow for a sufficient drying or curing period of the subfloor and finished floor covering before and after installing the
TempZone™ Floor Heating Cable (Twin). Do NOT operate floor heat until the thinset or self-leveling underlayment (SLU)
has completely cured.
2.1.15 Please note the thickness of the factory splice and cold lead and plan accordingly.
2.1.16 When using self-leveling underlayment (SLU), WarmlyYours recommends priming the floor before attaching the Cable
Fixing Strips and securing the cable. Doing so will ensure that the primer covers the subfloor completely. Whenever using
SLU, ALWAYS follow the installation recommendations set forth by the SLU’s manufacturer. It is very important to adhere
the heating cable securely to the subfloor, otherwise the heating cable may float to the top of the SLU.
Before You Begin SECTION 2
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