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3. INSTALLATION GUIDELINES & PROCEDURES
3.1 Area to be heated
EN
Determine the exact area to be heated and consider the following factors:
CF
•
Ensure the area to be heated complies with the data in the design instructions. See Table 1 on page 10 for product selection.
•
Establish junction box location(s) and ensure the connection leads (16.4' (5 m)) are long enough.
•
Inspect and clean the surface before installation, removing sharp objects that can damage the heating element.
•
The heating element must not be shortened or altered.
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nVent.com/RAYCHEM
Do not run the heating
mat over expansion joints.
Also heat the surfaces on which
braking will occur, e.g. before a
barrier or a magnetic card reader.
Example of Snow Melting for a Parking Ramp
Covered area
Covered area
Heat at least three
feet (one meter) into
the covered area, as
incoming vehicles can
bring in snow.
Lay the heating cable right
up to the drain-off gutter.
Also loosen
some heating
wire and heat
the drain gutter.
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