Item No. 0BL-00-012 Revised 07/19/2010 Copyright © 2008 Universal Metal Industries, Inc. Page 4
In-Line & Remote Ventilators, Duct Silencers, Dampers and Ducting
Trade-Wind
®
VSL Liners (non-
internal motor models) are also designed for use with ―in-line‖ and ―remote-mount‖
ventilators. When planning for installations using these products, please refer to the Installation Instructions
provided with the ventilator. Trade-Wind
®
Duct Silencers are available from your local Trade-Wind
®
dealer. When
planning for installation using a duct silencer, please refer to the Installation Instructions provided with the duct
silencer.
Given that most installations are different, a back-draft damper is not provided with this unit. Trade-Wind
®
back
draft dampers are also available from your local Trade-Wind
®
dealer. Always install ventilation products with an
approved wall or roof cap. Duct performance is improved by using round, smooth metal duct work instead of
rectangular. If multiple elbows must be used, ensure that there is a minimum of 24‖ of straight duct between any
two elbows. Avoid ―S‖ or back to back configurations caused by adjacent elbows. Do not rely on duct tape alone to
seal duct joints. Use sheet metal screws as required to support the duct.
WARNING!
For maximum ventilation performance, the bottom of the hood or liner should be 30 - 36 inches (76.2 - 91.4
cm) abo
ve the cooking surface (minimum is 24”). This would typically result in the bottom of the hood
being 66 - 72 inches (167.6 - 182.9 cm) above the floor. These dimensions provide for safe and efficient
operation of the hood.
Always observe local building codes.
Important Cut-out Information
Cabinet or hood cutouts should be at least 1/8‖ larger that the following outside dimensions
Models Available (by Width)
Pic
CFM
28.5”
34.5”
40.5”
46.5”
Sones
Control
Blower
A
-
VSL430 BF
VSL436 BF
VSL442 BF
VSL448 BF
N/A
Variable
In-Line or
Remote Mount Blower
B
410
VSL430-4 BF
VSL436-4 BF
VSL442-4 BF
-
7
Variable
Internal Motor
C
660
VSL430-6 BF
VSL436-6 BF
VSL442-6 BF
VSL448-6 BF
7.5
3-Speed
Internal Motor
D
1360
-
-
VSL442-12 BF
VSL448-12 BF
8.5
Two, 3-Speed
Two Internal Motors
Notes:
1. Center of electrical access is 2-
1/4‖ from front & 3-1/2‖ from
side of liner. Connection access is behind filters.
2. Vent is 8‖ (30 & 36‖ widths) or 10‖ (42‖ & 48‖ widths). Damper
not
included.
3. Length & width cutouts should be 1/8‖ larger than above
dimensions.
Notes:
1. Center of electrical access is 2-
1/4‖ from front & 3-1/2‖ from
side of liner. Connection access is behind filters.
2. Vent is centered left to right. Damper
is
included.
3. Length & width cutouts should be 1/8‖ larger than above
dimensions.
B
A
