King Electric SCM - Manual (Page 6)

6
Make a drawing and measure the area where you want snow melting to occur.
Eliminate those areas where SC/SCM cannot be installed, keeping in mind the following obstructions and allowances.
 Cable/Mat cannot be laid within 6” of the edges of slabs. In asphalt, this is increased to 12” from the edge where no curb is provided.
 Avoid crossing expansion joints in a slab, unless proper technique and protection steps are followed
 Avoid placing the heating cable any closer than 2 inches from other items such as underground cable or piping to keep from overheating
them.
 Allow at least 2” between adjacent cables, but not more than 4”, between adjacent cables or sections of a mat where the mat mesh is cut
and turned to fill the area.
 Cable/Mat must be laid in such a way that the surface will not have other obstructions placed on top, capturing heat or allowing potential
damage from mounting brackets, bolts, or similar (pedestals, support columns, walls, or light posts).
Precautions:
 The heating cable and factory splices of FC/FCM cable/mat must be completely embedded in the concrete, sand, or asphalt. Never try to use
up excess heating cable in surrounding soil, walls, or other unprotected applications.
 Never overlap the heating cable on itself or place heating cable closer than 2” from other heating cable.
 Only the power lead may exit this area. It will be pulled through conduit to protect it up to a junction box
NEVER pull any of the heating cable or factory splices into any conduit.
THE HEATING CABLE CANNOT BE CUT TO LENGTH. Order the correct size cable or mat to fit the area. Modifying the heating cable is not
allowed and may lead to overheating, damage, and fire hazard.
Determine junction box (s) location:
It is important to locate the junction box(s) as close as possible to where the SC/SCM cable/mat power leads will terminate, while making sure the
cable (s) and/or mat (s) you select fill the area correctly.
It is best to locate junction boxes on a wall indoors and within the distance of the power leads on the cable/mat. SC/SCM cable/mat comes
standard with 20’ long power leads.
If a junction box must be located outdoors, it is recommended to be installed above grade and to be properly listed for rain tight use outdoors. If
it must be installed at or below grade, use properly listed watertight items and follow box manufacturer guidelines for protection and connection
! WARNING
INSTALLATION
KING ELECTRIC MFG CO · 9131 10TH AVENUE SOUTH · SEATTLE, WA 98108 · PH:206 762 0400 · FAX: 206 763 7738 · www.king-electric.com
SAVE THESE INSTRUCTIONS
INSTALLATION INSTRUCTIONS
DANGER
! !
ELECTRIC SHOCK OR FIRE HAZARD
READ ALL WIRE SIZING, VOLTAGE REQUIREMENTS AND SAFETY
DATA TO AVOID PROPERTY DAMAGE AND PERSONAL INJURY