Transcript
Catalog Number
Notes
Type
FEATURES & SPECIFICATIONS INTENDED USE — High performance deep-cell parabolic luminaires for superior light control, visual comfort and light cutoff in open area applications.
PARAMAX® Parabolic Troffer
ATTRIBUTES — Choice of diffuse or specular louvers utilize the latest developments in louver finishing for minimized louver iridescence.
PM3 20"X2'
CONSTRUCTION — Black reveal provides floating louver appearance, conceals optional air-supply slots. Optional heat-removal dampers and airpattern control blades allow airflow control. Optional side-pans kit available to fill in a 2'x2' grid opening. Integral T-bar safety clips hold T-bar securely; no fasteners required to install.
3" LOUVER 2 or 4 lamps
Overlapping flange and modular ceiling trims factory-installed with standard swing-gate hangers or field convertible with optional trim and hangers. T-hinges die-formed for maximum strength. Latches spring-loaded, concealed in reveal. Housing formed from cold-rolled steel. Louvers formed from anodized aluminum. No asbestos is used in this product. FINISH — Five-stage iron-phosphate pretreatment ensures superior paint adhesion and rust resistance. Painted parts finished with high-gloss, baked white enamel. ELECTRICAL SYSTEM — Thermally-protected, resetting, Class P, HPF, non-PCB, UL Listed, CSA certified ballast is standard. Electronic ballasts are sound rated A. Luminaire is suitable for damp locations. AWM, TFN or THHN wire used throughout, rated for required temperatures. LISTING — UL Listed (standard). CSA Certified or NOM Certified (see Options). WARRANTY — Guaranteed for one year against mechanical defects in manufacture.
24 (609)
Specifications
5-15/16 (151)
Length: 24 (609) Width: 20 (509)
20 (508)
Depth: 5-15/16 (151) Weight: 18 lbs (8.2 kg) All dimensions are inches (millimeters).
NOTE: Specifications subject to change without notice.
For shortest lead times, configure product using standard options (shown in bold). Example: 20PM3 G B 2 U31 6LD MVOLT GEB10IS
ORDERING INFORMATION 20PM3 Series
Number of lamps1
20PM3 Paramax 3" deep cell parabolic, 20" wide
2 4 Not included.
Trim type
Lamp type
17 17W T8 (24")
Number of cells
6
CF40 40W T5 (24")
8
U31 31W T8 (1-5/8" wide)
12
G Grid F Overlapping flange
9
Finish
Voltage
LD Low iridescent diffuse silver
120 277 347
LS Low iridescent specular silver
MVOLT2 Others available.
MT Modular fit-in ST Screw slot
GLR Internal fast-blow fuse3 GMF Internal slow-blow fuse3 LST Tandem fixture pairs (shared ballasts) PWS1836 6' prewire, 3/8" dia., 18-gauge, 1 circuit LP__ Lamped, specify lamp type and color APB Air-pattern control blades (A & D models only) PAF Painted after fabrication (white enamel) CSA Listed and labeled to comply with Canadian standards NOM Listed and labeled to comply with Mexican standards JP Palletized and stretch-wrapped, GT and MT trim only
A Air supply/return (slots in side trim) H Heat removal (through lamp cavity, dampers available)
D Combination A & H B Static (no air function, matching appearance)
Fluorescent
1/4 One 4-lamp ballast
GEB10IS Electronic ballast, <10% THD, instant start GEB10RS Electronic ballast, <10% THD, rapid start EL Emergency battery pack (nominal 300 lumens)
LP835 Lamped; 800-series, 3500K
Air function
NOTES: 1 6" wide U-lamps not available. 2 MVOLT standard for 120V and 277V applications, some options require voltage specified. 3 Must specify voltage.
Options
Accessories: Order as separate catalog number.
2FP2 Two white 24" side filler pans for G trim fixture. For 2x2 ceiling modules.
Sheet #: PM3-20x2
PAR-190
PM3 20"x2' 3" Louver Family MOUNTING DATA
DIMENSIONS
Continuous row mounting of flanged units requires CRE and CRM trim options (see Options). Appropriate Ceiling Type Trim Type Exposed grid tee G Concealed grid tee G, ST Concealed Z-spline F, MT Metal pan (consult factory) MT Screw slot (consult factory) ST Acoustical tile, plaster or plasterboard F on rigid support parallel to lamps
NOTES: 1 Recommended rough-in dimensions for F trim fixtures 24"x24" (Tolerance is +1/4", -O”). Swing-gate range 1" to 4-3/16", span 23-1/2" to 26-5/16".
PHOTOMETRICS Calculated using the zonal cavity method in accordance with IESNA LM41 procedures. Floor reflectances are 20%. Lamp configurations shown are typical. Full photometric data on these and other configurations available upon request.
20PM3 G B 2 U31 9LD Report LTL 5026 - Lumens per lamp = 2800 S/MH (along) 1.2 (across) 1.3 Coefficient of Utilization Ceiling
80%
70%
50%
Wall
70% 50% 30%
70% 50% 30%
50% 30% 10%
1 2 3 4 5 6 7 8 9 10
64 60 56 51 47 43 40 36 33 31
63 59 54 50 46 42 39 36 33 30
59 53 48 43 39 35 31 28 25 23
62 56 51 45 41 36 32 29 26 23
61 53 47 41 36 32 28 24 21 19
61 55 50 45 40 36 32 29 25 23
59 52 46 41 36 31 28 24 21 19
57 51 45 40 35 31 27 24 21 18
56 49 43 37 32 28 24 21 18 16
Zonal Lumens Summary Zone
0-30 0-40 0-60 0-90 90-180 0-180
Lumens %Lamp %Fixture
1008 1645 3057 3238 0 3238
18.0 29.4 54.6 57.8 0 57.8
31.1 50.8 94.4 100.0 0 100.0
Lithonia Lighting
Sheet #: PM-20x2
©1997 Acuity Brands Lighting, Inc., Rev. 11/26/07
Fluorescent One Lithonia Way, Conyers, GA 30012 Phone: 800-858-7763 www.lithonia.com
