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FrostGuard 120 V
120 V Preassembled Electric Heating Cables for Pipe Freeze
Protection and Roof & Gutter De-Icing Installation Instructions
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 nVent
agency certifications, and national electrical
DESCRIPTION
nVent RAYCHEM 120 V FrostGuard cables come pre-assembled
in 6, 12, 18, 24, 36, 50, 75 and 100 foot lengths. 120 V cables offer
plug-and-play installation thanks to an integrated 6 foot power cord
and a lighted, grounded, 3-prong plug that indicates when the cable
has power. 120 V FrostGuard is ideal for roof and gutter de-icing
and for pipe freeze protection on metal or plastic pipes up to
2-1/2 inches in diameter.
KIT CONTENTS
1
FrostGuard preassembled electric heating cable
2
Roof and gutter labels
2
Pipe labels
ADDITIONAL ITEMS REQUIRED BUT NOT SUPPLIED
FOR PIPE APPLICATIONS
• Ground-fault protected outlet (GFCI)
• Waterproof thermal insulation (e.g. preformed foam)
• nVent RAYCHEM H903 Application Tape and Electric Traced
Labels
ADDITIONAL ITEMS REQUIRED BUT NOT SUPPLIED
FOR ROOF & GUTTER APPLICATIONS
• nVent RAYCHEM H913/H914 roof clips (10 clips for each 7
linear feet of roof edge)
• nVent RAYCHEM H915 hanger bracket (1 for each downspout, 2 if
looping)
• UV-resistant cable ties
• Ground-fault protected outlet (GFCI)
APPROVALS
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.
-WS
• 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 nVent RAYCHEM FrostGuard 120 V
Summary of Contents for nVent RAYCHEM FrostGuard 120 V
- Page 1 FOR ROOF & GUTTER APPLICATIONS • nVent RAYCHEM H913/H914 roof clips (10 clips for each 7 linear feet of roof edge) • nVent RAYCHEM H915 hanger bracket (1 for each downspout, 2 if looping) • UV-resistant cable ties • Ground-fault protected outlet (GFCI)
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Page 2: General Instructions
Important: For the nVent warranty to be valid, you must comply with all the requirements outlined in these guidelines. FrostGuard 120 V (FG1) heating cable selection for pipe freeze protection: Important: All thermal and design information provided here is Use the tables to below to select the correct heating cable. Add 1 foot to your pipe length for each valve or spigot on your pipe based upon a “standard installation”: heating cable fastened to a... -
Page 3: Heating Cable Installation
• End view 12 inches Tape or FG heating 1/2 in insulation Waterproof covering cable ties cable Pipe label Figure 1. Straight-traced installation 12 inches • Tape or FG heating 1/2 in insulation Waterproof covering cable ties cable Pipe label 10 feet Glass tape Heating... - Page 4 6. Starting the system. lation. • Be sure the FrostGuard 120 V label is visible on the outside • nVent recommends that the system be tested per the “Cable testing and maintenance” section below.
- 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 de-icing: • FrostGuard is designed to remove melt water, not accumu- •...
- Page 6 FrostGuard 120 V (FG1) heating cable selection for roof & gutter de-icing 1. Calculate the heating cable length. Table 3. Typical spacing and layout measurements Find the number of feet of heating cable needed per foot of roof Length of heating cable per foot of roof edge (feet) edge in Table 3.
- Page 7 Figure 7. Standard roof clip attachments Figure 8. Valleys • Extend the top of each heating cable loop beyond where the wall joins the roof. • Trace two-thirds of the way up each valley with a double run of heating cable as shown in Figure 8. Cable •...
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Page 8: Product Specifications
Heating cable testing and maintenance WARNING: Fire and Shock Hazard. Make sure that gutter and downspouts are free of leaves and other Damaged heating cable can cause electrical shock, arcing, and fire. Do debris prior to the winter season. not attempt to repair or energize damaged heating cable. Remove it at once and replace with a new length.
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