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nVent.com/RAYCHEM | 1

In-Pipe Mini must be installed correctly to ensure

proper operation and to prevent shock, fire or damage

to the pipe. Read these important warnings and

carefully follow all the installation instructions.

• A 5-mA ground fault circuit interrupter (GFCI)

must be used.

• In-Pipe Mini should not be used in uninsulated

pipe. For uninsulated pipes contact nVent.

• The heating cable must be installed in accordance

with local and national electrical codes.

• Do not use a two-prong outlet, an extension cord,

or with any voltage other than 120 volts AC.

• Do not unduly work or bend the cable. Bend

gently and avoid repeated sharp bends,

pinching, crimping, or flattening.

• Do not cut or alter the length of the heating

cable or power cord.

• The heating cable must not pass through a

valve or shut off of any kind.

• The heating cable must not pass through the

pitless adaptor into the well casing

• Do not install this heating cable on the outside

of piping.

• Do not energize the system until installation

is complete and the pipe is filled with water.

Never energize the system if the pipe is not

filled with water.

• The temperature sensor must contact the

pipe at all times or it could sense an incorrect

temperature.

• Minimum installation temperature is –4°F (–20°C).

WARNING:

In-Pipe Mini – 120 V

In-Pipe Freeze Protection Heating Cable Installation Instructions

KIT CONTENTS

Item Qty Description

A 1 In-Pipe Mini heating cable assembly

B 2 Plastic tie wraps – 8 in (200 mm) long

C 1 Installation Instructions (English and French)

GFI protected

receptacle outlet

Insulated

plastic

water pipe

Heating

cable

Temperature

sensor

1/2 in threaded

coupling

To lake,

river or

well

Duct

tape

To water

system

or pump

Outside

wall

DESCRIPTION

nVent RAYCHEM In-Pipe Mini heating cable is a pipe freeze

protection system that heats insulated water pipes from the

inside. Utilizing a heavy-duty cable that is made entirely of metal

and mineral insulation, In-Pipe Mini is an energy efficient in-pipe

heating cable for pipes between 14 feet (4.3 m) and 34 feet

(10.4 m) in length. In-Pipe Mini includes a temperature sensor

and is designed for use with 1/2 in to 1-1/4 in plastic and metal

pipes that are insulated with closed-cell thermal insulation.

In-pipe Mini can be installed in copper, CPVC and polyethylene

pipes.

Pipe type Vicat softening temperature

CPVC 230°F (110°C)

Polyethylene 241°F (116°C)

APPROVALS

-PS,X/D

Made in Canada

Note: This product

is suitable for use in

potable water.

Summary of content (4 pages)

PAGE 1
In-Pipe Mini – 120 V In-Pipe Freeze Protection Heating Cable Installation Instructions DESCRIPTION Outside wall To water system or pump To lake, river or well Insulated Duct plastic tape water pipe GFI protected receptacle outlet Heating cable Temperature sensor 1/2 in threaded coupling nVent RAYCHEM In-Pipe Mini heating cable is a pipe freeze protection system that heats insulated water pipes from the inside.
PAGE 2
Please read these instructions completely before proceeding. Note: Heating cable must only be installed in straight or gradually bent pipe. Elbows and other sharp bends should not be used. 1. If the cable is being installed in new pipe, follow Step 1a; if being installed in existing pipe, follow Step 1b. (†) If the measured pipe length is more than 48 in (1,220 mm) shorter than the heating cable length, do not install the cable; return it for the next shorter cable.
PAGE 3
. Attach the tee assembly to the near end of the water supply pipe, per local codes. Be sure the tee is installed so that the cable will be able to pass straight through the tee and into the pipe with no bending required (see Figure 6). Outside wall Structure supply pipe 6. Wrap several turns of Teflon tape around the tapered thread (exposed end) of the supplied 1/2 in NPT threaded coupling. Fasten the threaded coupling to the tee or ‘added pipe’ assembly.
PAGE 4
9. Install 1/2 in (13 mm) minimum thickness closed cell split tube insulation over all pipe, with and without heating cable inside. Also cover valve bodies and temperature sensor with insulation (see Figure 10 and Figure 11). Outside wall Insulation Temperature sensor cord Duct tape 10. Cover seams and joints in insulation with duct tape or other suitable material to prevent water from entering the insulation.