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Heat & Glo • SL-750TRS-IPI-E, SL-550TRS-IPI-E, SL-350TRS-D, SL-350TRS-IPI • 2120-900 Rev. D • 6/07 25
A* B* C D
SL-750TRS-IPI-E
Inches
41 27-7/8 40 26-7/8
Millimeters
1041 708 1016 683
SL-550TRS-IPI-E
Inches
36-1/2 24-3/8 35-1/2 23-3/8
Millimeters
927 619 902 594
SL-350TRS-D
Inches
35-1/2 22-3/8 34-1/2 21-3/8
Millimeters
902 568 876 543
Combustible Wall Penetration
Frame a hole in a combustible wall for an interior wall
shield fi restop, (Figure 6.2) whenever a wall is penetrated.
Use same size framing materials as those used in the wall
construction. The wall shield fi restop maintains minimum
clearances and prevents cold air infi ltration.
Non-Combustible Wall Penetration
If the hole being penetrated is surrounded by noncombus-
tible materials such as concrete, a hole with diameter one
inch greater than the pipe is acceptable.
B. Wall Penetration Framing
Figure 6.3 Exterior Wall Hole
* Shows center of vent framing hole for top or rear venting.
The center of the hole is one (1) inch (25.4 mm) above the
center of the horizontal vent pipe.
C
D
B*
A*
6
6
Vent Clearances and Framing
WALL
HEAT
SHIELD
HEAT
SHIELD
3in.TOP
CLEARANCE
WALL
SHIELD
FIRESTOP
1in.CLEARANCE
BOTTOM & SIDES
7in.
A. Pipe Clearances to Combustibles
Fire Risk.
Explosion Risk.
Maintain vent clearance to combustibles as
specifi ed.
• Do not pack air space with insulation or other
materials.
Failure to keep insulation or other materials
away from vent pipe may cause fi re.
Figure 6.1 Pipe Clearances
1 in. CLEARANCE
AROUND VERTICAL
SECTIONS
3 in. TOP
CLEARANCE
1 in. SIDE AND
BOTTOM CLEARANCE
Note: Slope
not required.
WARNING
Figure 6.2 DVP Horizontal Venting Clearances to Combustible
Materials
Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm).
The heat shield is designed to be used on a wall 4 in. to 7-1/4 in. (102 mm
to 184 mm) thick. If wall thickness is less than 4 in. (102 mm) the existing
heat shields must be fi eld trimmed. If wall thickness is greater than 7-1/4
in. (184 mm) a DVP-HSM-B will be required.
Note: When using SL pipe, minimum clearances from the vent pipe to
combustible materials at wall fi restops are:
Top: 2-1/2 inches
Bottom: 1/2 inch
Sides: 1 inch