51 EC Submittal
EGGCRATE RETURN GRILLES & REGISTERS
ALUMINUM CORE AND FRAME
PANEL MOUNTED • NARROW REGRESSED T-BAR
MODELS: 51EC(-O) TYPE FPS OR FPA
FOR FINELINE® TYPE CEILING SYSTEMS
CM = CEILING MODULE
1/4"
(6)
D = NOMINAL DUCT SIZE
D - 1/4" (6)
OPTIONAL
OPPOSED
BLADE
DAMPER
2 3/4"
(70)
1-3/4" 0R 1-5/8"
(44 OR 41)
5/16"
(8)
9/16"
(14)
1" (25)
CM - 5/8" (16)
REGRESSED
T-BAR DETAIL
CM - 1/4" (6)
AVAILABLE CEILING MODULES (CM)
Imperial Modules
Metric Modules
Imperial Units (inches) S.I. Units (mm) S.I. Units (mm)
AVAILABLE
DUCT/NECK
SIZES
20 x 20
508 x 508
500 x 500
6" x 6" (152 x 152) up to
16" x 16" (406 x 406)
in 2" (51) increments
24 x 24
610 x 610
600 x 600
6" x 6" (152 x 152) up to
20" x 20" (508 x 508)
in 2" (51) increments
❑
❑
MODEL 51EC
Type FPS
Type FPA
Eggcrate Return Air Grille
Steel Panel
Aluminum Panel
❑
❑
MODEL 51EC-O Eggcrate Return Air Register
(Includes O. B. Damper)
Type
FPS
Steel
Panel
❑
❑ Type FPA Aluminum Panel
DESCRIPTION:
OPTIONS:
1. Material: Aluminum core and extruded frame mounted in an extended
panel.
1. Finish:
❑ SP
2. Models 51EC and 51EC-O Type FPS or FPA have been specially designed
for high capacity (90% free area) return air applications and to integrate
with and compliment regressed 'narrow-tee' type T-Bar suspended ceiling
systems. The return grille or register is mechanically assembled and using
a special frame captures the module sized panel, which eliminates welding
and assures a clean smooth blemish free painted finish.
2. Non-standard core:
3.
❑
❑
❑
Special _______________ .
CB
1/2" x 1/2" x 1" (13 x 13 x 25)
CC
OA
1" x 1" x 1" (25 x 25 x 25)
Aluminum opposed blade damper
(model suffix).
3. 1/2" x 1/2" x 1/2" (13 x 13 x 13) aluminum grid core standard (code CA).
4. Optional roll-formed steel opposed blade damper has a screwdriver slot
operator accessible through face of register.
5. Standard finish is AW Appliance White.
Fineline® is a registered trademark of USG Interiors Inc.
SCHEDULE TYPE:
PROJECT:
ENGINEER:
CONTRACTOR:
Dimensions are in inches (mm).
DATE
B SERIES
2 - 1 - 11
5100
SUPERSEDES DRAWING NO.
Nailor Industries Inc. reserves the right to change any information concerning product or pricing without notice.
NEW
51EC-4
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