Brochure

21
Sidewall Registers & Grilles
Engineering Data on Page 114
A650 Return Air Grille
•
Aluminum construction
•
1/3" spaced fins set at
20 degrees
•
Exceptional free area
•
5/16" Margin Turnback
•
Bright White finish
651Register
•
All-steel construction
•
1/3" spaced fins set at 20 degrees
•
Positive volume-control damper
•
Bright White finish
659 Return Air Filter
Grille
•
All-steel construction
•
1/3" spaced fins set at
20 degrees
•
Effectively conceals filter
•
Use standard 1" thick
disposable filters
(not included)
•
Removable face for easy
installation and cleaning
•
Equipped with adjustable
filter retainers
•
Bright White finish
Average face velocity = 390 FPM,
based on filter capacity rating of 2 CFM
per square inch of gross filter area.
Free area averages 75% of grille core.
For quick calculation free area (sq. in.)
= listed width x height x .75.
Note: When ordering, specify
horizontal dimension first.
6 10121418
6X X
8X
10 X
12 X X
14 X
A650 Available Sizes (in.)
HT
WIDTH
8 101214
4XXX
6XXXX
HT
WIDTH
651 Available Sizes (in.)
10 12 14 16 18 20 24 25 30 36
6XX X X
8XX
10 X X X X
12 X XXX X
14 X XXXXX
16 X XXXX
18 XXX
20XXXX XXXX
24 XX XXX X
25 XXXX
30 XX XX X
36 X
659 Standard Sizes (in.)
HT
WIDTH
Contact factory for sizes not listed.
Sidewall Registers & Grilles