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ZCVRB60 –Vented Chase- Style 1 – OPENING WITH NO GRILL
VENTILATION PLATES MUST BE REMOVED
Open Area
1-7/8" MIN with 3 Sides Open and
2" MIN with 3 Sides Open and
Recessed Cavity 15-3/4" Deep
67" FRAMING I.D.
76"
MIN
Firestop Spacer (Z58FS) or Attic Insulation
Open
Area
Ceiling / Enclosure Top
200 SQ. IN. MINIMUM
Cavity 19-1/4" Deep
Vertical Venting must use
Shield and Sealant
Optional Attic
Insulation Shield
(Z58AIS, Z58AIS24)
67"
Open Area
SEALED ENCLOSURE
Ceiling / Enclosure Top
Open Area
200 SQ. IN. MINIMUM
2" MIN with 3 Sides
Open and Recessed
Cavity (15-3/4" Deep)
19-1/4"
200 Sq. In. MIN
⚠ NOTE: Minimum Opening is
200sq. inches of free air.
⚠ NOTE: If using insulation in
vented chase (i.e. for outside wall),
wall board / drywall is required to
support all insulation.
Vented chase must be clean and
free of all debris (i.e. loose
insulation, pieces of wood, etc.).
76"
⚠ NOTE: HEAT CANNOT BE
MIN
DISCHARGED INTO THE
WALLS, FLOOR, OR CEILING.
Heat must exit through the required
vented chase opening near the
ceiling.
TOP VIEW
200 Sq. In. MIN
76"
MIN
56"
MIN
Exterior wall is insulated
and drywalled.
21
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