58
I-800
• When using
3
/
4
-inch piping, all sprigs over 12 inches must be laterally
braced, per NFPA requirements. When using 1-inch or larger piping, a
hanger must be located at the truss closest to a sprig for restraint.
• A minimum lateral distance of 18 inches must be maintained between
the CPVC and the edge of heat sources (i.e. fan motors, heat lamps,
HVAC heat pump units, etc.).
• When CPVC piping must be offset up and over an obstruction, and the
bottom of the pipe will be located more than 4 inches above the ceiling,
additional Model CC1 Combustible Concealed Sprinklers must be in-
stalled to protect CPVC product.
• The distance from the surface of the obstruction to the pipe surface must
not exceed 6 inches. The sprinkler must be installed directly over the
obstruction.
I-800 2755 Rev_I.fm Page 58 Tuesday, September 13, 2005 8:46 AM