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
• Propane torch or heat gun
• Utility knife
• Diagonal cutters
• 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.
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.
• 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.
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.
WARNING:
CAUTION:
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.)
A
H
B
C
D
E
F
G
I
J
K
L
WARNI
NG
Fire
and Shock Hazar
d
Self-r
egulating e
lectrical
heating cable
attach
ed t
o th
is pipe
:
Disconnect be
fore
sevicing
Electric De
icing and
Snow Me
lting E
quipment
on Pr
emises
WARNI
NG
Fire
and Shock Hazar
d
Self-r
egulating e
lectrical
heating cable
attach
ed t
o this pip
e:
Disconne
ct be
fore
sevicing
Electric De
icing and
Snow Me
lting E
quipment
on Pr
emises
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
-ws
