23
Heat & Glo • PRIMO48, PRIMO48ST, PRIMO60, PRIMO60ST, PRIMO72, PRIMO72ST Installation Manual • 2310-970 Rev. L • 2/16
A. Pipe Clearances to Combustibles
WARNING! Risk of Fire!
Maintain air space clearance
to vent.
DO NOT
pack insulation or other combustibles:
• Between ceiling
fi
restops
• Between wall shield
fi
restops
• Around vent system
Failure to keep insulation or other material away from
vent pipe could cause overheating and
fi
re.
5
5
Vent Clearances and Framing
Figure 5.1 Horizontal Venting Clearances To Combustible
Materials
(PVI-SLP)
1-1/2 in. (38 mm)
clearance above horizontal pipe sections
1 in. (25 mm)
clearance around
vertical sections
1in. (25 mm) clearance below
horizontal pipe sections
3 in. (76 mm)
top clearance
1-1/2 in. (38mm)
clearance above
an elbow
1 in. (25 mm)
clearance around
vertical sections
3 ft. min. (914 mm)
1 in. (25 mm)
clearance on bottom
and sides of horizontal
pipe sections
1-1/2 in. (38 mm) clearance
above horizontal pipe sections
1 in. (25 mm)
clearance on bottom
and sides of horizontal
pipe sections
Heat
Shield
Wall
Shield
Firestop
Heat
Shield
WALL
3 in. (76 mm)
clearance above elbow
1 in. (25 mm)
clearance around
vertical sections
Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm).
DVP heat shield
- designed to be used on a wall 4 in. to 7-1/4 in. (102
mm to 184 mm)
thick
.
,IZDOOWKLFNQHVVLVOHVVWKDQLQWKHH[LVWLQJKHDWVKLHOGVPXVWEHILHOG
WULPPHG,IZDOOWKLFNQHVVLVJUHDWHUWKDQLQD'93+60%ZLOO
be required.
SLP heat shield
- designed to be used on a wall 4-3/8 in. to 7-5/8 in.
(111 mm to 194 mm thick).
,IZDOOWKLFNQHVVLVOHVVWKDQWKHH[LVWLQJKHDWVKLHOGVPXVWEH
ILHOGWULPPHG,IZDOOWKLFNQHVVLVJUHDWHUWKDQLQD'93+60%
will be required.
(DVP-SLP Pipe Shown)
39,6/3
1-1/2 in. (38 mm) clearance
above horizontal pipe sections
Figure 5.2 Clearances - Elbow Directly Off Top of Appliance
(PVI-SLP/PVLP-SLP)
Figure 5.3 Clearances - 3 Feet of Vertical Pipe Before an Elbow
(PVI-SLP/PVLP-SLP)
•
These clearances to combustible override the
clearances noted in the PVI-SLP installation
instructions.
• Clearance above an elbow is 3 inches unless 3 feet
of vertical pipe is installed between the 6 inch factory-
installed pipe section and the
fi
rst elbow. After 3 feet of
vertical pipe is installed, the clearance is 1-1/2 inches.