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Single Deflection Models
| Steel Construction |
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| Grilles c/w Multi Louvers |
540 |
| Grilles c/w Multi Split Louvers |
540S |
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| Aluminum Construction |
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| Grilles c/w Multi Louvers |
640 |
| Grilles c/w Multi Split Louvers |
640S |
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| Price
540/640 Series is a light duty single deflection grille, ideally suited for apartment, condominium or residential applications. The front blades are adjustable for pattern direction control, while
the multilouver rear blades provide volume control. |
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| Mounting / Finish Options |
Border Style
Surface Mount |
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| 1-1/4"
(32) Flat (Standard) |
F
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| Blade Orientation |
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| Front blades parallel to
short dimension |
S
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| Fastening |
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Countersunk screwholes
c/w oval-head screws (standard) |
A
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| Lanced
Frame (optional) |
G
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| Finish |
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White Powder Coat
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B12
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For optional and special finishes
see color matrix.
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| Available Sizes
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Minimum
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Maximum*
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Model
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6" x 4"
(152 x 102)
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24" x 14"
(610 x 356)
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540
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6" x 5"
(152 x 127)
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24" x 14"
(610 x 356)
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540S
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6" x 4"
(152 x 102)
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18" x 14"
(450 x 356)
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640
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6" x 5"
(152 x 127)
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18" x 14"
(450 x 356)
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640S
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Single Deflection 3/4" (19) Blade
Spacing
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 Product Selection Checklist |
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- Select Unit Size based on desired performance characteristics.
- Select Outlet Type by model number (540 or 540S).
- Select Border Style according to installation requirements (F is standard).
- Select Fastening Type (A is standard).
- Select Finish.
Example: 6" x 12"
/ 540 / F / S / A / B12
Application Recommendations:
Surface Mount – A
Fastening. |
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- Grille sizes increase in 1" (25) increments
(fractional sizes are not available).
- Maximum blade length is 18" (457).
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