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coefficients of utilization — zonal cavity method
RF 20 20 20
RC 80 50 30
RW 70 50 30 50 30 10 50 30 10
1 78 75 73 71 69 68 68 67 66
2 72 68 64 64 62 59 62 60 58
3 67 61 57 58 55 52 57 53 51
4 62 55 50 53 49 46 51 48 45
5 58 50 45 48 44 40 47 43 40
6 54 46 40 44 39 36 43 39 36
7 50 42 36 40 36 32 39 35 32
8 47 38 33 37 32 29 36 32 29
9 44 35 30 34 30 26 33 29 26
10 41 33 28 32 27 24 31 27 24
visual comfort probability (VCP) average 100 fc; reflectances 80/50/20
room size ceiling height ceiling height
W L 8.5 10.0 13.0 16.0 8.5 10.0 13.0 16.0
20 20 71 63 55 55 73 65 63 61
20 30 74 66 59 53 75 67 62 58
20 40 76 69 63 56 77 69 65 59
20 60 78 71 66 60 78 72 68 62
30 20 76 68 59 57 78 70 65 62
30 30 78 70 62 55 79 71 64 58
30 40 79 72 65 58 80 73 67 59
30 60 80 74 68 61 81 75 69 62
30 80 82 76 70 64 81 76 71 64
40 20 78 71 63 60 80 73 69 63
40 30 80 73 66 57 81 74 68 60
40 40 81 75 69 60 82 76 70 61
40 60 82 77 71 63 82 77 72 63
40 80 83 78 73 65 83 78 73 65
40 100 84 79 74 67 83 79 75 67
60 30 81 75 69 61 82 76 71 63
60 40 82 77 71 63 83 78 72 64
60 60 83 78 73 65 83 78 74 66
60 80 84 80 75 67 83 79 75 68
60 100 85 81 76 69 84 80 76 69
100 40 83 78 74 67 83 78 75 67
100 60 84 79 75 69 84 79 76 69
100 80 85 81 77 71 84 80 77 71
100 100 86 82 78 72 85 81 78 72
Deepcel Plus DPA2G12 Series
Page 2 of 2 2' x 2' Recessed Fluorescent, 3", 12 Cell Parabolic Louver
Static or Air/Return, 2 Lamp 6"U or 3–1-5/8"U T8 or 3 Twin Tube T5
Lightolier a Genlyte company www.lightolier.com
Technical Information: (978) 657-7600 • Fax (978) 658-0595
631 Airport Road, Fall River, MA 02720 • (508) 679-8131 • Fax (508) 674-4710
We reserve the right to change details of design, materials and finish.
© 2007 a Genlyte company
Section 2/Folio G51-30 Rev. A
Job Information Type:
Options/Accessories
Plaster Frame: Catalog Number: PF22.
Continuous Row Installation: For F type fixtures, half width flanges are required between
fixtures. Order Catalog Number: 2FC TRIM CSP (each joint).
Radio Interference Filter:
To order one RIF per fixture; SUFFIX: R. To order one RIF per ballast;
SUFFIX: B.
Electrical Wiring Options: Consult factory.
Air Closure Strip:
SUFFIX: ACS2 (factory installed).
Drywall Kit: Order Catalog Number: FK92X2. (Request Folio OA30-10 Rev. A).
Chicago Plenum: SUFFIX: CP.
Specifications
Performance: In an installation of 3 lamp 40W luminaires in a room cavity ratio of 1,
reflectance 80% ceiling, 50% wall, 20% floor, the C.U. shall not be less than .75. To prevent
glare the VCP shall be not less than 83 either lengthwise or crosswise (at 100fc level) and
the average brightness at 65° shall not exceed 2394 candelas per square meter. To control
veiling reflections, luminaire output in the 30°-90° zone shall not be less than 62.2%.
Air Handling (DPA only) side air passages for air supply or air return. Supply air is discharged
vertically. Optional side closure strips. Air return is also provided through the lamp compartment
through fixture body ends.
Specifications (continued)
Materials: Chassis parts are die-formed code gauge cold rolled steel. Housing
is ribbed for
rigidity with side rails hemmed over and housing ends turned-in for safe handling.
Louver is
pre-anodized aluminum (Coilzak
®
or equal.
Finish: Chassis exterior–black baked polyester enamel. Cavity–white baked polyester
enamel minimum 86% reflectance. Phosphate undercoating. Louver–low iridescence semi-
specular anodized vertical grain aliminum reflector sheet is standard.
Electrical: Thermally protected class “P” ballast C.B.M. approved, non PCB. If K.O. is with-
in 3" of ballast, use wire suitable for at least 90°.
Labels: I.B.E.W. UL and ULc Listed.
Photometry Model No. DPA2G12LP3FT120X3
LER = FP - 58.3 IW - 99.5 BF - 0.88
Comparative yearly lighting energy cost per 1000 lumens = $4.12
THISREPORTISBASEDONPUBLISHEDINDUSTRYPROCEDURES•FIELDPERFORMANCEMAYVARYFROMLABORATORYPERFORMANCE.
Deepcel Plus
Parabolic:
Pre-anodized
aluminum
louver
Body Style:
A=Air Supply
S=Static
2
Fixture
Width
Lamp
Quantity
2 or 3 Lamp
Lamp Type/
Fixture Length:
2U= T8 1-5/8"U Lamp
(Nominal 24")
FT = Twin Tube T5
(Nominal 24")
6U= 6"U Lamp T8
2 Lamp Only
(Nominal 24")
Note: For Linear
T5 Lamp option,
consult factory
Options:
Add appropriate
suffix to catalog no.,
ie: (CP)
Ballast Type:
<20THD <10THD
1-2 Lamp Elec. T8 SO * H
I *
1-3 Lamp Elec. T8 O3 * H3 *
LOL T8 Dimming PS –
1-2 Lamp Elec. TT5 SB *
IB *
(40 watt)
1-3 Lamp Elec. TT5 X3 *
I3 *
(40 watt)
LOL TT5 Dimming PB -
*Instant Start Standard
Other dimming options. Consult factory.
NOTE:
For TT5 UNV, you must use
I
B,
I
3
Ballast Code.
For T8 UNV, you must use H
I
, H3
Ballast Code.
Ordering Information
Explanation of Catalog Number. Example: DPA2G12LP3FT120X3CP
Ceiling Type:
G= Grid
(lay-in T bar)
F= Flanged (over
lap) Z spline and
plaster frame
T= Slot grid or
two-directional
concealed T
(see options)
12
Number of
Cells:
12=3 rows
of 4
Louver Finish:
L = Low
iridescence
Semi-specular
(standard)
P =Low
iridescence
Specular
W =White Baked
Enamel
Reflector:
S= Single "V"
Reflector
(2 Lamp)
P= Dual "V"
Reflectors
(3 Lamps)
room cavity ratio
luminaries lengthwise
luminaries crosswise
Voltage:
120, 277 or
UNV=120-277
G00048
DPA2G12LP3FT120X3
3 F40 /BIAX, EACHRATED 3150 LUMENS.
2X2 TROFFER WITH3X4 12CELLSEMI-SPECULAR: 2COVER
DP
Standard Deepcel
DY
For NYC Code – I.B.E.W. Manufactured
ND
For NYC Code – Local 3 Manufactured
5½" Deep Body