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1/4 in

Note: Ring of adhesive

will appear at both ends

Heat-shrink tube

Plug-in cord

Green wire

Black and

white wires

Mastic

• Use insulated bus wire

crimps and CT-100 crimp

tool to connect black and

white wires to bus wires

of heating cable. Polarity

does not matter.

• Remove release paper from mastic strips.
• Wrap one strip of mastic around the white

wire against the end of the splice

to provide a water block.

• Repeat for the

black wire.

Finish bus wire preparation

Apply 5-inch shrink tube

Connect bus wires

Apply mastic to bus wires

• Trim bus wires.

• Squeeze the

mastic together.

• Center the 5-inch heat-shrinkable tube over

the splice. Make sure tube extends over the

end of each heating cable and the cord.

• Shrink the tube completely. Start at the

middle and work toward each end.

Keep heating after tube has shrunk,

to melt mastic and adhesive inside

tube. 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.

Содержание RAYCHEM H908

Страница 1: ...he 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 hea...

Страница 2: ...1 o clock or 1 o clock position and at the 4 o clock and 8 o clock positions Example 1 Pipe size 1 in Lowest air temp 0 F Insulation thickness 1 2 in Metal pipe WinterGard H311 Plastic pipe WinterGard Plus H611 H621 WinterGard Wet H612 H622 Example 2 Pipe size 2 1 2 in Lowest air temp 20 F Insulation thickness 1 2 in Metal pipe 1 3 WinterGard Plus H611 or WinterGard Wet H612 Use 1 3 feet of heatin...

Страница 3: ...before connection 3 Position and attach heating cable to pipe Be sure all piping to be traced is dry Install heating cable using straight tracing spiraling or multiple tracing according to the Heating cable selection and design section on page 2 For straight tracing install the heating cable on a lower half of the pipe for example in the 4 o clock or 8 o clock position Be sure to install the addit...

Страница 4: ...ms inspect heating cables for signs of damage and verify the components are correctly installed If physical damage is found the entire damaged section must be removed and a new section of heating cable spliced in using only approved H910 splice kits If physical damage cannot be found the complete circuit should be removed and replaced with new heating cable To verify the ground fault circuit is fu...

Страница 5: ... gutter and downspout The cable running in the gutter should remain against the bottom of the gutter Extend the top of each heating 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 Use WinterGard H913 H914 roof clips to attach heating cable to the roof surface One...

Страница 6: ...If physical damage is found the entire damaged section must be removed and a new section of heating cable spliced in using only approved H910 splice kits If physical damage cannot be found the complete circuit should be removed and replaced with new heating cable To verify the ground fault circuit is functioning test the H908 before each use Push in the test button The indicator light must turn of...

Страница 7: ...atherproofed outlet approved for wet locations H913 H914 Roof clip H910 Tee End seal Clamp ties two places Clamp ties two places Power connection splice included with the H908 H908 Ground fault equipment protection device Weatherproofed outlet approved for wet locations Drip loops Drip loop Drip loop Note In all locations route and secure cable to avoid possible mechanical damage such as from ladd...

Страница 8: ...nd wire Plug in cord 3 in Note Instructions generally show heating cable with braid and outer jacket Cables with no outer jacket look slightly different from those illustrated H908 POWER CONNECTION KIT Identify heating cable Stripped end of ground fault protection device 5 in tube 8 in tube 2 3 4 in 1 2A For all heating cables For H311 and H611 heating cables only Slide 8 inch tube and 5 inch tube...

Страница 9: ...cket Score between bus wires at inner jacket Bend core to break free at inner jacket Peel core and any remaining material from bus wires Notch core at the end Twist back and peel bus wires from core Slide 1 8 inch x 1 inch shrink tubes over bus wires To shrink tubing move heat source continuously from side to side While shrinking ensure that tubes remain up against black core Trim bus wires For H6...

Страница 10: ...e black wire Finish bus wire preparation Apply 5 inch shrink tube Connect bus wires Apply mastic to bus wires Trim bus wires Squeeze the mastic together Center the 5 inch heat shrinkable tube over the splice Make sure tube extends over the end of each heating cable and the cord Shrink the tube completely Start at the middle and work toward each end Keep heating after tube has shrunk to melt mastic...

Страница 11: ...ect braid to ground wire Wrap black cloth tape evenly around crimp and splice Cover crimp completely Center the 8 inch heat shrinkable tube over the splice 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 abou...

Страница 12: ... braid Firmly push end seal onto the cable at least 11 2 inches Some gel may ooze out Do not twist or try to remove the end seal during or after insertion Do not reuse an end seal Firmly push end seal onto the cable at least 11 2 inches Some gel may ooze out Do not twist or try to remove the end seal during or after insertion Do not reuse an end seal Cleanly cut off the end of the cable Push the b...

Страница 13: ...pproved for wet locations Make sure that Cord label is readily visible Indicator light on the ground fault equipment protection device is on Receptacle is properly weatherproofed Ground fault equipment protection device and power connection splice will not be submerged For pipe freeze protection For pipe freeze protection For roof and gutter de icing For roof and gutter de icing Plug the heating c...

Страница 14: ...ect incidental or consequential Notwithstanding the foregoing nVent shall have no liability whatsoever unless a Buyer promptly notifies nVent in writing after discovery of an alleged nonconformity and includes a detailed explanation of the alleged nonconformity b Buyer promptly returns the goods to nVent postage prepaid at the address obtained by calling Customer Service at 1 800 545 6258 or 650 2...

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