8
Installation Preparation
Downdraf t Vent Systems
Countertop Cutout:
Requires 23-3/8" (B,W) 23-1/2"
(SS) flat countertop surface. Requires 24-3/8" (B,W) and
24-1/2" (SS) total countertop depth.
ZGU36GG
Gas Cooktops
with 36" Vent
ZGU375
Gas Cooktop
with 36" Vent
Countertop Cutout:
Requires 22-3/4” flat countertop
surface and 24-1/4" total countertop depth.
2-1/2" Min.
Clearance to Cutout
34" Cooktop and Vent Cutout
13/16" Cooktop Overlap
(1-1/2" at Center)
Front Edge
of Countertop
21-3/4"
Cutout
Depth
1/4" Overlap
23-1/2" (SS)
23-3/8" (B,W)
Total Flat
Surface
Required
at Center
1/8" Gap
36"
2-1/4" Min. Cooktop Cutout to Rear
Vertical Combustible Surface
6" Min. Cutout
to Side Walls
3/4"
22-3/4" to Back Wall
22" to Support Rail
24-3/4"
2-1/2" to
Cutout
ZGU36 Cooktop
1-7/8"
3/4"
Thick
Support
Rail
20-1/16"
DOWNDRAFT VENT
35-5/16"Cooktop
Area Cutout
7/16" Cooktop Overlap
(1-1/4" At Center)
21-7/16"
Cutout
Depth
18-7/8"
Cooktop
Cutout
2-9/16"
9/16"
34" Vent Cutout
1/4" Overlap
22-3/4"
Total Flat
Surface
Required
1/8" Gap
36-1/2"
9/16"
2-3/4" Min.
Clearance to Cutout
Front Edge
of Countertop
3-3/8" Min. Cooktop Cutout to Rear
Vertical Combustible Surface
7-9/16" Min. Cutout
to Side Walls
1"
22-3/4" to Back Wall
22" to Support Rail
24-3/4"
2-3/4" to
Cutout
ZGU375 Cooktop
1-7/8"
3/4"
Thick
Support
Rail
19-7/16"
DOWNDRAFT VENT
Cabinet:
Requires 22-5/16" inside
cabinet depth.
–Remove rear support rail.
Cabinet:
Requires 22-11/16" inside
cabinet depth.
–Remove rear support rail.