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nvent RAYCHEM H908 Installation Instructions Manual

nvent RAYCHEM H908 Installation Instructions Manual

Plug-in power connection kit with end seal

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H908
Plug-in Power Connection Kit with End Seal Installation Instructions
APPROVALS
Pipe Heating Cable
718 K
Also Listed as De-icing and
Snow Melting Equipment
KIT CONTENTS
Item Qty
Description
A
1
Plug-in ground-fault equipment protection device
B
2
Black cloth tapes (6 inch long x 1 inch wide)
C
1
Uninsulated braid crimp
D
2
Insulated bus wire crimps
E
2
Heat-shrinkable tubes (1 inch long x 1/8 inch dia.)
F
2
Clamp ties
G
1
Heat-shrinkable tube (8 inch long x 1 inch dia.)
H
2
Warning labels for pipe-trace applications
I
2
De-icing and snow melting equipment labels
J
2
Mastic strips
K
1
Gel-filled end seal
L
1
Heat-shrinkable tube (5 inch long x 3/4 inch dia.)
WARNING:
These components are electrical devices. They must be installed
correctly to ensure proper operation and to prevent shock or fire.
Carefully follow all of the installation instructions and read these
important warnings.
• 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 and the 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.
• Component approvals and performance are based on the use
of specified parts only. Do not substitute parts or use vinyl
electrical tape.
• The black heating-cable core is conductive and can short. It
must be properly insulated and kept dry.
-ws
• Keep components and heating cable ends dry before and
during installation.
• Damaged bus wires can overheat or short. Do not break braid
or bus wire strands when scoring the jacket or core.
• Bus wires will short if they contact each other. Keep bus wires
separated.
• Heat-damaged components can short. Use a heat gun or a
torch with a soft, yellow, low-heat flame, not a blue focused
flame. Keep the flame moving to avoid overheating, blistering,
or charring the heat-shrinkable tubes. Avoid heating other
components. Replace any damaged parts.
• Use only fire-resistant insulation materials such as fiberglass wrap.
• Leave these installation instructions with the user
for future reference.
DESCRIPTION
The nVent RAYCHEM H908 is a plug-in, ground-fault-protected power
connection kit for use with nVent RAYCHEM WinterGard H311, nVent
RAYCHEM WinterGard Plus H611, and nVent RAYCHEM WinterGard
Wet H612 120 V heating cables.
This kit ensures compliance with nVent, NEC and CEC requirements
for ground-fault protection of equipment. It does not protect people
against the hazards of shock. The kit includes materials for one
power connection and end seal. All WinterGard, WinterGard Plus, and
WinterGard Wet heating cables are designed for water-pipe freeze
protection applications. Only the H612 heating cable can be used for
both pipe freeze protection and roof and gutter de-icing applications.
For additional technical support call nVent at (800) 542-8936.
TOOLS REQUIRED
• Needle nose pliers
• Utility knife
• Panduit crimp tools CT100 and CT570
ADDITIONAL MATERIALS REQUIRED
• Grounded, UL Listed 15-amp, 120-volt receptacle (receptacle must
be approved for wet locations if exposed to weather).
• Additional cable ties may be required for roof and gutter applications.
• Your application may require additional RAYCHEM accessories;
for example, H903 application tape for pipe applications; H913/
H914 roof clips and/or H915 downspout hangers for roof and
gutter de-icing applications.
A
B
C
D
E
F
G
Charring or burning the heat-shrinkable tubes in this kit will
produce fumes that may cause eye, skin, nose, and throat irritation.
Consult Material Safety Data Sheet RAY3122.
CHEMTREC 24-hour emergency telephone: (800) 424-9300
Non-emergency health and safety information: (800) 545-6258.
• Propane torch or heat gun
• Diagonal cutters
CAUTION:
H
I
J
K
L

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Summary of Contents for nvent RAYCHEM H908

  • Page 1 H908 Plug-in Power Connection Kit with End Seal Installation Instructions DESCRIPTION The nVent RAYCHEM H908 is a plug-in, ground-fault-protected power connection kit for use with nVent RAYCHEM WinterGard H311, nVent RAYCHEM WinterGard Plus H611, and nVent RAYCHEM WinterGard Wet H612 120 V heating cables.
  • Page 2 “standard” installation with heating cable fastened to an insulated pipe. For any other application or method of installation, consult nVent at (800) 545-6258. HEATING CABLE SELECTION AND DESIGN Make sure that the heating cable being used is suitable for your Example 1: application.
  • Page 3: Heating Cable Installation

    Secure the heating cable flat to the pipe to obtain good contact. cable loop spiraling tape before direction length heating spiraling • Tape WinterGard heating cable to the pipe at 2-foot intervals cable on heating cable using RAYCHEM H903 fiberglass application tape or nylon pipe on pipe cable ties. Do not use vinyl electrical tape, duct tape, metal Figure 1. Spiraled heat tracing bands, or wire. nVent.com | 3...
  • Page 4: Electrical Protection

    WinterGard Wet 120 V Do not use an extension cord. Plug the unit directly into the outlet. H612 on pipe Note: nVent, Article 427 of the NEC and Part I, Section 62 of the CEC Note: Circuit breaker sizing is based on Section 427-4 of the National require ground-fault protection for pipe heating cable applications.
  • Page 5 Protect all cable that protrudes past the lower against the bottom of the gutter. Extend the top of each heating opening of the downspout. cable loop beyond where the wall joins the roof. nVent recommends 2-foot clip-spacing along the roof edge. See the “Heating cable design” section (Table 5) for spacing and layout information.
  • Page 6 Do not use an extension cord. Plug the unit directly into the outlet. Note: Maximum circuit lengths are based on start-up load. Steady-state Note: nVent and the national electrical codes require ground-fault amps per foot is dependent upon heating cable temperature. protection of equipment for de-icing systems. HEATING CABLE TESTING AND MAINTENANCE Make sure that gutter and downspouts are free of leaves and To verify the ground-fault circuit is functioning, test the H908 other debris prior to the winter season.
  • Page 7 H913/H914 Roof without gutters or downspouts Roof clip Weatherproofed outlet approved H910 Tee for wet locations seal Clamp ties (two places) Drip loops H908 Ground-fault Power connection splice equipment (included with the H908) Drip protection device loop nVent.com | 7...
  • Page 8 For all heating cables For H311 and H611 heating cables only • Slide 8-inch tube and 5-inch tube • Unravel 2 3/4 inches of braid. over end of the plug-in cord. • Straighten the braid and twist into a pigtail. 2-3/4 in 5 in tube 8 in tube 8 | nVent.com...
  • Page 9 • Trim bus wires. • Score between bus wires at inner jacket. CAUTION: Health Hazard • Bend core to break free at inner jacket. Consult material safety datasheet RAY3122. • Peel core and any remaining material from bus wires. nVent.com | 9...
  • Page 10 Total heating time should be about 2 minutes. • Immediately after shrinking, pinch first one end of the tube and then the other end with needle-nose pliers until the ends stay sealed. This normally takes 10 seconds per end. 10 | nVent.com...
  • Page 11 Make sure that the tube extends over the end of the heating cable and cord. • Shrink the tube completely. Start at the middle and work toward each end. Keep heating after tube has shrunk, to melt adhesive inside tube. Total heating time should be about 3 minutes. nVent.com | 11...
  • Page 12 Do not reuse seal during or after an end seal. insertion. Do not reuse an end seal. • Slide the braid up against the end seal and secure with the 6-inch length of tape provided. 12 | nVent.com...
  • Page 13 – Indicator light on the ground-fault equipment – Receptacle is properly weatherproofed (if outdoors). protection device is on. – Ground-fault equipment protection device and power – Receptacle is properly weatherproofed. connection splice will not be submerged. – Ground-fault equipment protection device and power Note: Pipe must be fully insulated connection splice will not be submerged. nVent.com | 13...
  • Page 14: Limited Warranty

    ©2018 nVent. All nVent marks and logos are owned or licensed by nVent Services GmbH or its affiliates. All other trademarks are the property of their respective owners. nVent reserves the right to change specifications without notice. Raychem-IM-H54789-H908-EN-1805...