Pentair Raychem FrostGuard 240 V Installation Instructions Manual

FrostGuard 240 V

Table 1 Metal Pipes

Pipe diameter (in)

240 V PREASSEMBLED ELECTRIC HEATING CABLES FOR PIPE FREEZE PROTECTION
INSTALLATION INSTRUCTIONS

DESCRIPTION

FrostGuard 240 V preassembled electric heating cables are
intended for installation on metal or plastic water pipes for freeze
protec tion in commercial locations. FrostGuard 240 V heating
cables are available in 6-, 12-, 18-, and 24-foot lengths and each
comes complete with a 6-ft cold lead.

KIT CONTENTS

Item Qty Description

1 FrostGuard preassembled heating cable

3 Wire connectors

ADDITIONAL MATERIALS REQUIRED

APPROVALS

-W

1 UL Listed or CSA Certified junction box suitable for wet or dry areas
1 UL Listed or CSA Certified outlet bushing and fitting
Cable ties or glass-cloth tape
Thermal pipe insulation

HEATING CABLE SELECTION

FrostGuard 240 V (FG2) heating cable
selection for pipe freeze protection:

Use the tables to the right to select the
correct heating cable. Round up to the next
pipe size if your pipe diameter isn’t shown.

The charts assume the lowest ambient
temperature is –20°F (–29°C), with a
minimum of 1/2 in fiberglass insulation or
equivalent. For protection to –40°F (–40°C),
use 1 inch fiberglass insulation or equivalent
fire-resistant insulation.

Add 1 foot to your pipe length for each valve
or spigot on your pipe system. If length of
cable selected is longer than the pipe, spiral
cable evenly along the entire pipe.

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

THERMAL BUILDING SOLUTIONS

WARNING:

Table 2 Plastic Pipes

2 1/2
2
1 1/2
1
1/2

FG2-6LFG2-

12L

FG2-

18L

FG2-

24L

2 1/2
2
1 1/2
1
1/2

Pipe diameter (in)

FG2-6LFG2-

12L

FG2-

18L

10 20010 200

Pipe length (ft)

Add 1 foot to your 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.

Important

All thermal and design information provided here is based upon a “standard installa­tion”: heating cable fastened to a pipe and thermally insulated. For any other method of
installation or application, consult Pentair Thermal Building Solutions at [phone]
for design assistance to ensure proper design of electrical distribution and acceptable
pipe temperatures.

with the requirements of Pentair Thermal Building Solutions,
agency certifications, and the National Electrical Code, ground-fault
equipment protection must be used on each heating cable branch
circuit. Arcing may not be stopped by conventional circuit protection.

• Use only fire-resistant insulation materials such as fiberglass
wrap.

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• Do not damage the heating cable and cord connector. Remove
any damaged cables from service immediately.

• 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.

• Leave these installation instructions with the user for future
reference.

Pipe length (ft)

FG2-

24L

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GENERAL REQUIREMENTS:

GENERAL INSTRUCTIONS:

• FrostGuard heating cables are not intended for use inside any
pipes, for freeze protection of liquids other than water, or for
use in classified hazardous locations.

• FrostGuard heating cables may be used on metal and plastic
water pipes but not on flexible vinyl tubing (such as garden
hoses).

• Install with a minimum of 1/2 inch fire-resistant thermal insula­tion. Weatherproof the insulation if it might get wet.

• Never use on any pipes that may exceed 150°F (65°C).

1

Side View

1a Spiral traced

1b Straight traced

• If your FrostGuard cable is longer than the pipe, spiral it
evenly along the pipe (Figure 1a).

• If your FrostGuard cable is the same length as the pipe, run
it straight along the pipe (Figure 1b) in the 4 o’clock or 8
o’clock position.

• Install only in accessible locations; do not install behind walls or
where the cable would be hidden.

• Do not run the heating cable through walls, ceilings, or floors.

• Connect only to junction boxes that have been installed in accor­dance with all prevailing national and local codes and standards
and are protected from rain and other water.

• Prior to installing the cable, remove any sharp surfaces on the
pipe that might damage the heating cable.

• Follow the specific installation instructions that begin below.

• Follow the maintenance guidelines on page 3.

End View

1c Two cables in

4 and 8 o’clock
positions

1d Three cables in
4, 8, and 10 o’clock
positions

• If two FrostGuard cables are used, position them in the 4
o’clock and 8 o’clock positions (Figure 1c).

• If three FrostGuard cables are used, position them in the 4, 8,
and 10 (or 2) o’clock positions (Figure 1d).

2

240 V heating cable

Tape or cable ties

Spiral-traced Installation

240 V heating cable

Tape or cable ties

12 inches

Straight-traced Installation

• Fasten the cable to the pipe at 12-inch intervals with glass
cloth tape or plastic cable ties. If excess cable remains at
the end of the pipe, double it back along the pipe and cover it
with insulation.

1/2 in. insulation

12 inches

Waterproof covering

1/2 in. insulation

Waterproof covering

• Provide extra heat at valves and spigots by wrapping each
with an additional foot of heating cable, overlapping as re­quired.

THERMAL BUILDING SOLUTIONS

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