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Pipe Freeze Protection
General requirements for pipe freeze
• Install with a minimum of 1/2" fire-resistant,
protection:
waterproof thermal insulation.
• Gardian heating cables may be used on metal
• Never use on any pipes that may exceed
and plastic water pipes but not on flexible
150°F (65°C).
vinyl tubing (such as garden hoses).
• Do not use an extension cord.
• Gardian heating cables are not intended for
use inside any pipes, for freeze protection of
General instructions:
liquids other than water, or for use in classified
• Install only in accessible locations; do not
hazardous locations.
Electrical codes
Important: For the Tyco Thermal Controls
warranty to be valid, you must comply with all
Articles 422 and 427 of the National Electrical
the requirements outlined in these guidelines.
Code (NEC), and Part 1, Section 62 of the
Canadian Electrical Code (CEC), govern the
installation of Gardian heating cable for pipe
freeze protection and must be followed.
Determine which Gardian W51 heating cable
Product selection charts for pipes
you need for pipe freeze protection:
Table 1 Metal Pipes
Use the tables to the right to select the correct
heating cable. Add 1 foot to your pipe length for
2
1
/
2
each valve or spigot on your pipe system.
2
1
1
/
2
The charts assume the lowest outside temper-
1
ature is 0°F (–18°C), with a minimum of 1/2"
6P
6P
6P
12P
12P
12P
18P
18P
18P
thick waterproof, fire-resistant thermal insulation
1
/
2
0
10
(preformed foam). For protection to –20°F
(–29°C), use 1" thick insulation.
Table 2 Plastic Pipes
2
1
/
2
Important
2
All thermal and design information provided
1
1
/
2
here is based upon a "standard installation":
1
heating cable fastened to a pipe and thermally
6P
6P
6P
12P
12P
12P
18P
18P
18P
insulated. For any other method of installation or
1
/
2
0
10
application, consult Tyco Thermal Controls at
(800) 545-6258.
Add 1 foot to the pipe length for each valve or spigot on your pipe system. If cable selected is longer
than the pipe, spiral it evenly along the entire pipe.
install behind walls or where the cable would
be hidden.
• Do not run the heating cable through walls,
ceilings, or floors.
• Connect only to ground-fault protected outlets
that have been installed in accordance with all
prevailing national and local codes and
standards and are protected from rain and
other water.
All thermal and design information provided
here is based upon a "standard" installation
with heating cable fastened to an insulated
pipe. For any other application or method of
installation, consult Tyco Thermal Controls at
(800) 545-6258
24P
24P
24P
50P
50P
50P
75P
75P
75P
100P
100P
100P
20
30
40
50
60
70
80
90
100
Pipe length (ft)
24P
24P
24P
50P
50P
50P
75P
75P
75P
100P
100P
100P
20
30
40
50
60
70
80
90
100
Pipe length (ft)
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