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Pipe freeze protection
Roof and gutter de-icing: standard roof
Roof and gutter de-icing: standing seam metal roof
WARNING:
Fire and shock hazard. This product is an
electrical device that must be installed
correctly to ensure proper operation and to
prevent shock or fire. Read these important
warnings and carefully follow all the
installation instructions.
• To minimize the danger of fire from sustained
electrical arcing if the heating cable is damaged
or improperly installed, and to comply with the
requirements of Tyco Thermal Controls
Gardian
120 V pre-assembled electric heating cables for
pipe freeze protection and roof & gutter de-icing
Installation Instructions
Description
Gardian™ W51 120 V pre-assembled self-regulating heating cables are
designed for residential and commercial metal and plastic pipe freeze
protection and roof & gutter de-icing applications. Gardian W51 heating
cables are available in 6, 12, 24, 50, 75 and 100 foot lengths, and each
comes assembled with a 30-inch power cord and plug.
Kit contents
1 Gardian W51 pre-assembled electric heating cable
2 Roof and gutter labels
2 Pipe labels
Additional items required but not supplied for pipe applications
Waterproof thermal insulation (e.g. preformed foam)
Ground-fault protected outlet (GFCI)
Raychem
Additional items required but not supplied for roof & gutter applications
Raychem H913/H914 Roof Clips (10 clips for each 7 linear feet of
roof edge)
Raychem H915 Hanger Bracket (1 for each downspout, 2 if looping)
UV Resistant cable ties
Ground-fault protected outlet (GFCI)
Approvals
718K Pipe Heating Cables
60J9 Residential and Mobile Home Pipe Heating Cables
877Z De-Icing and Snow Melting Equipment
Desig. 3A, 3B, 3C, 2E, 3D
®
and national electrical codes, ground-fault
equipment protection must be used on each
heating cable branch circuit. Arcing may not be
stopped by conventional circuit protection.
• For pipe freeze protection applications, use
only fire-resistant insulation materials such as
preformed foam or fiberglass.
• Do not damage the heating cable and power
cord or plug. Remove any damaged cables
from service immediately.
W51
™
®
H903 Application Tape and Electric Traced Labels
• Do not use any wire or metal clamps to attach
the cable to the pipe. Use tape (1/2 inch wide
to 1 inch wide) or plastic cable ties.
• Do not install the heating cable underneath any
roof covering for roof and gutter de-icing.
• Leave these installation instructions with the
user for future reference.
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Related Manuals for Raychem Gardian W51
Summary of Contents for Raychem Gardian W51
- Page 1 H903 Application Tape and Electric Traced Labels Additional items required but not supplied for roof & gutter applications Raychem H913/H914 Roof Clips (10 clips for each 7 linear feet of roof edge) Raychem H915 Hanger Bracket (1 for each downspout, 2 if looping)
- Page 2 Gardian heating cable for pipe (800) 545-6258 freeze protection and must be followed. Product selection charts for pipes Determine which Gardian W51 heating cable you need for pipe freeze protection: Table 1 Metal Pipes Use the tables to the right to select the correct heating cable.
- Page 3 Figure 1 Straight-traced installation End view 12 inches Tape or W51 heating 1/2" insulation Waterproof covering cable ties cable Pipe label Figure 2 Spiral-traced installation 12 inches Tape or W51 heating 1/2" insulation Waterproof covering cable ties cable Pipe label 10 feet Glass tape (typical)
- Page 4 • Install the insulation on the piping as soon as possible to minimize the potential for mechanical damage after installation. • Be sure the Gardian W51 label is visible on the outside of the thermal insulation. 5. Finishing the installation.
- Page 5 Roof & Gutter De-icing Note: Route and secure the heating cable to avoid possible mechanical damage, such as from ladders, etc. General requirements for roof & gutter roofing materials, including shake, shingle, • Do not run the heating cable through walls, rubber, tar, wood, metal, and plastic.
- Page 6 Heating cable selection for roof & gutter de-icing Table 3 Typical spacing and layout measurements Length of cable per foot of roof edge (feet) 1. Calculate the heating cable length required. Standing seam metal roof: Eave overhang (in) Standard roof 18"...
- Page 7 2"–3" (5–8 cm) Figure 7 Roofs without gutters Figure 8 Valleys Figure 9 Standard roof clip attachment • For roofs without gutters, route the slides. The heating cable can be attached to damage from sharp edges and to provide heating cable as shown in Figure 7. the barrier with UV-resistant cable ties, strain relief as shown in Figure 12.
- Page 8 Electrical classification Nonhazardous areas only Exposure to chemicals None Tyco, Gardian and Raychem are trademarks or registered trademarks of Tyco Thermal Controls LLC or its affiliates. Worldwide Headquarters Canada Important: All information, including illustrations, is believed to be reliable. Users, however, should...