Lightolier VR Parabolic VRA2G9LS26USO - Manual (Page 2)

VR PARABOLIC
VRA2G9LS26U
Page 2 of 2 2'x2' RECESSED FLUORESCENT, 4" DEEP, 9 CELL (3x3) PARABOLIC LOUVER
AIR SUPPLY/RETURN/HEAT EXTRACTION, IES RP1 FOR NORMAL VDT USE
Lightolier a Genlyte Thomas 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.
© 2002 Genlyte Thomas Group LLC (Lightolier Division)
A0902
SECTION 2/Folio G05-40 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: S2FCTRIM (each joint).
SPLAY TRIM: For T ceiling type only. SUFFIX: CTZ22 S2 SPLAY TRIM.
RADIO INTERFERENCE FILTER: 120 or 277 volt, 50 or 60 Hz. One per fixture
standard. SUFFIX: RF.
ELECTRICAL WIRING OPTIONS: Consult factory.
AIR CLOSURE STRIPS: SUFFIX ACS2 (factory installed).
DRYWALL KIT: Order Catalog Number: FK92X2. (Request Folio OA30-10.)
CHICAGO PLENUM: SUFFIX: CP.
SPECIFICATIONS
PERFORMANCE: In an installation of 2 lamp 31W luminaires in a room cavity
ratio of 1, reflectance 80% ceiling, 50% wall, 20% floor, the C.U. shall not be less
than .62 with a spacing to mounting ratio of 1.3 perpendicular to the lamps. To
meet IES RP1 preferred requirements for VDT areas the VCP (visual comfort proba-
bility) shall not be less than 93 either crosswise or lengthwise and the maximum
average brightness at 65°, 75° and 85° shall not exceed 357, 130, and 38 cande-
las per square meter respectively in the 0°, 45°, and 90° horizontal planes.
Candelas at Nadir (0°) not to exceed 1521.
SPECIFICATIONS (continued)
AIR HANDLING: (VRA only) side air passages for air supply or air return.
Optional side closure strips. Air return is also provided through the lamp com-
partment through fixture body ends.
MATERIALS: Chassis parts are die-formed code gauge cold rolled steel.
Housing side rails hemmed over and housing ends turned-in for safe handling.
LOUVER: 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 aluminum reflec-
tor sheet is standard.
ELECTRICAL: Thermally protected class “P” ballast C.B.M. approved, non PCB.
If K.O. is within 3" of ballast, use wire suitable for at least 90°.
LABELS: I.B.E.W./UL and C-UL.
PHOTOMETRY
MODEL NO. VRA2G9LS26USO
coefficients of utilization — zonal cavity method (effective floor cavity reflectance 0.20)
RF 20 20 20
RC 80 50 30
RW 70 50 30 50 30 10 50 30 10
1 64 62 60 58 57 56 56 55 54
2 59 56 53 53 51 49 51 49 48
3 55 50 47 48 45 43 47 44 42
4 51 46 42 44 40 38 42 40 37
5 48 41 37 40 36 33 39 36 33
6 44 38 33 36 33 30 35 32 30
7 42 34 30 33 29 27 32 29 27
8 38 32 27 30 27 24 30 26 24
9 36 29 25 28 24 22 28 24 22
10 34 27 23 26 22 20 26 22 20
visual comfort probability (rated lumens per lamp 3150.)
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 91 85 77 77 92 90 85 76
20 30 92 87 81 77 92 90 88 81
20 40 92 89 84 80 92 90 88 84
20 60 92 89 86 82 92 91 88 84
30 20 91 85 81 78 92 91 87 77
30 30 92 88 84 78 92 91 89 81
30 40 92 89 87 81 92 91 89 83
30 60 92 89 88 83 92 91 89 84
30 80 93 90 88 83 92 90 89 84
40 20 91 85 81 81 92 91 87 79
40 30 92 88 84 81 92 91 89 83
40 40 92 89 87 83 92 91 89 85
40 60 93 90 88 85 93 90 89 84
40 80 93 90 88 85 93 90 89 84
40 100 93 90 88 85 93 90 89 84
60 30 92 83 84 81 92 91 89 83
60 40 93 90 87 83 92 90 89 84
60 60 93 90 88 85 93 90 89 84
60 80 93 90 88 85 93 90 89 83
60 100 93 90 88 85 93 90 89 83
100 40 93 90 87 83 93 90 89 84
100 60 93 90 88 85 93 90 89 83
100 80 93 90 88 85 93 90 89 84
100 100 93 90 88 85 93 90 89 84
ro
om cavity ratio
luminaries lengthwise luminaries cr
osswise
ORDERING INFORMATION
Explanation of Catalog Number. Example: VRA2G9LS26U120SOGLR
LER = FP - 47.8 IW - 59.2 BF - 93.6
Comparative yearly lighting energy cost per 1000 lumens = $5.02
VR
VR:
4" Deep
Pre-anodized
Aluminum
Louver
For Normal
VDT Use
BODY STYLE:
A=Air Handling
S=Static
2
FIXTURE
WIDTH
CEILING TYPE:
G= Grid
(lay-in T bar)
F=Flanged
(overlap)
Z spline and
plaster
frame
T=Slot grid or
two-directional
concealed
T (see options)
9
NUMBER OF
CELLS:
(3 rows of
3 cells)
LOUVER
FINISH*:
L=Low
Iridescence
Semi-specular
(standard)
P=Low
Iridescence
Specular
S
SINGLE “V”
REFLECTOR
2
LAMP
QUANTITY
6U
LAMP TYPE/
FIXTURE
LENGTH:
6"U LAMP
T8 OR T12
(Nominal 24")
VOLTAGE:
120 or 277
OPTIONS:
Add appropriate
suffix to catalog
no, ie: (GLR) BALLAST TYPE:
1-2 Lamp Mag. T12 LE
< 20THD < 10THD
1-2 Lamp Elec. T8 SO* H I *
LOL T8 Dimming PS –
*Instant Start Standard
Other dimming options consult factory.