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13

H908 Installation Instructions – Securing the Ground-Fault Device

1

2

3

4

5

6

7

8

9

Clamp

ties

WARNING

Fire and Shock Hazard

Self-regulating electrical

heating cable attached to this pipe:

Disconnect before servicing

Cord label

WARNING

Fire and Shock Hazard

Self-regulating electrical

heating cable attached to this pipe:

Disconnect before servicing

1a   

For pipe freeze protection

2a   

For pipe freeze protection (continued)

Clamp

ties

Cord label

De-icing
equipment
label

1b   

For roof and gutter de-icing

2b   

For roof and gutter de-icing (continued)

• To prevent damage to the ground-fault equipment protection

device and to provide strain relief, use clamp ties to secure
the device to the wall near the receptacle. Be careful not to
damage either the cord or the ground-fault unit.

• Plug the heating cable into a 15-A, 120-Vac grounded outlet.
• Make sure that:

– Cord label is readily visible.
– Indicator light on the ground-fault equipment protection

device is on.

– Receptacle is properly weatherproofed (if outdoors).
– Ground-fault equipment protection device and power connec-

tion splice will not be exposed to standing water (if outdoors). 

• To prevent damage to the ground-fault equipment protection

device and to provide strain relief, use clamp ties to secure
the device to the wall near the receptacle. Be careful not to
damage either the cord or the ground-fault unit.

• Plug the heating cable into a 15-A, 120-Vac grounded

outlet approved 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 exposed to standing water. 

Summary of Contents for H908

Page 1: ... c t r i c D e i c i n g a n d S n o w M e l t i n g E q u i p m e n t o n P r e m i s e s WARNING Fire and Shock Hazard Self reg ulat ing elec trica l hea ting cab le atta che d to this pipe Disc onn ect befo re sev icin g Electric Deicing and Snow Melting Equipm ent on Prem ises Approvals 718K Pipe Heating Cable DESIG 3A 3B 3C 3D 2E or 877Z De Icing and Snow Melting Equipment R LISTED These comp...

Page 2: ...he cell straight trace the pipe If a number does appear in the cell spiral trace the pipe If your spiraling ratio is 2 0 multiple trace the pipe using two straight traces at the 4 o clock and 8 o clock positions If your spiraling ratio is 3 0 multiple trace the pipe using three straight traces at the 11 o clock or 1 o clock position and at the 4 o clock and 8 o clock positions Example 1 Pipe size ...

Page 3: ...n 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 additional heating cable require...

Page 4: ...ns of damage If physical damage is found the entire damaged section must be removed and a new section of heating cable spliced in using only approved WinterGard H910 splice kits Do not repair the damaged heating cable section If physical damage cannot be found the com plete circuit should be removed and replaced with new WinterGard heating cable To ensure protection against excessive current leaka...

Page 5: ...of and into the 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 Raychem HTS 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...

Page 6: ...n Minimum reading should be 20 meg ohms regardless of circuit length Record the original values for each circuit Take additional readings during regularly scheduled maintenance and compare to the original value If the readings fall below 20 megohms inspect heating cables and insulation for signs of damage If physical damage is found the entire damaged section must be removed and a new section of h...

Page 7: ...ection device End seal included in H908 and H910 kits Weatherproofed outlet approved for wet locations Note In all locations route and secure cable to avoid possible mechanical damage such as from ladders etc Neither the ground fault unit nor the power connection splice can be submerged H908 Design and Installation Information for Roof and Gutter De Icing Only continued WinterGard Wet H612 Heating...

Page 8: ...and outer jacket 5 tube 8 tube 2 3 4 Unravel 2 3 4 of braid Straighten the braid and twist into a pigtail 2 For H311 and H611 heating cables only 1 For all heating cables Slide 8 inch tube and 5 inch tube over end of the plug in cord Note Instructions generally show heating cable with braid and outer jacket Cables with no outer jacket look slightly different from those illustrated Black and white ...

Page 9: ...s remain up against black core Trim bus wires Bend core to break free at inner jacket Peel core and any remaining material from bus wires Lightly score completely around and then down outer jacket Lightly score completely around and then down inner jacket Bend heating cable to break jacket at score then peel off inner jacket Do not cut bus wires Notch core at the end Twist back and peel bus wires ...

Page 10: ...etely 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 oth...

Page 11: ...e 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 about 3 minutes H908 Installation Instructions Power Connection Kit continued ...

Page 12: ...ch length of tape provided R Firmly push end seal onto the cable at least 1 1 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 1 1 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 Unravel and remove expo...

Page 13: ... or the ground fault unit Plug the heating cable into a 15 A 120 Vac grounded outlet Make sure that Cord label is readily visible Indicator light on the ground fault equipment protection device is on Receptacle is properly weatherproofed if outdoors Ground fault equipment protection device and power connec tion splice will not be exposed to standing water if outdoors To prevent damage to the groun...

Page 14: ...mity b Buyer promptly returns the goods to Raychem HTS postage prepaid at 300 Constitution Drive Menlo Park California 94025 1164 and c Raychem HTS s examination of such goods establishes to Raychem HTS s satisfaction that such alleged nonconformities actually exist and occurred in the cause of proper and normal use and were not caused by accident misuse neglect alteration or improper installation...

Page 15: ...15 H908 Design and Installation Information Notes ...

Page 16: ...45 6258 Fax 650 474 7517 Fax on Demand 800 901 8107 info raychemhts com www raychemhts com North America Raychem HTS 1960 Blue Heron Drive London Ontario N68 5L9 Canada Tel 800 545 6258 Fax 650 474 7517 WinterGard WinterGard Plus and WinterGard Wet are a trademarks of Raychem HTS 1997 2000 Raychem HTS Printed in USA Y3439 H54789 PN 048227 12 00 ...

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