Lightolier VRA2G12LS232 Page 2 of, Options & Accessories, Specifications, Photometry, Type

SECTION 2/Folio G05-60 REV. A

	VR PARABOLIC VRA2G12LS232
Page 2 of 2	2'x4' RECESSED FLUORESCENT, 4" DEEP, 12 CELL (2x6) PARABOLIC LOUVER
	STATIC OR AIR SUPPLY/RETURN/HEAT EXTRACTION, IES RP1 FOR NORMAL VDT USE

PHOTOMETRY

		LER = FP - 54.6			IW - 77.6			BF - 98.4
MODEL NO. VRA2G12LS232SO Comparative yearly lighting energy cost per 1000 lumens = $4.39
		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	79	77		75		73		71	69		70		69	67
		ratio	2	74	70		67		66		64	62		64		62	60
			3	69	64		59		61		57	54		59		56	53
		cavity	4	64	57		53		55		51	48		53		50	47
			5	59	52		46		50		45	42		48		45	42
		room	6	55	47		41		45		40	37		44		40	37
			7	51	42		36		40		36	32		39		35	32
			8	46	38		32		36		31	28		35		31	28
			9	42	33		28		32		27	24		31		27	24
			10	39	30		25		29		24	21		28		24	21
		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	89	84	85			94	91	88		84
	20			30			92	91	87	84			94	91	90		85
	20			40			92	91	89	87			94	91	90		87
		20		60			92	91	89	87			94	91	90		87
	30			20			92	90	86	85			94	92	89		84
	30			30			92	92	89	85			94	92	91		85
	30			40			92	92	90	87			94	92	91		87
	30			60			92	92	89	87			94	92	91		87
		30		80		lengthwise	92	92	90	87		crosswise	94	92	91		87
	40			40			92	92	89	88			94	92	91		87
	40			20			92	90	87	87			94	92	89		86
	40			30		luminaries	92	92	89	86		luminaries	94	92	91		86
	40			60			92	92	90	88			94	92	91		88
	40			80			92	92	90	88			94	93	91		88
		40		100			92	91	90	88			94	93	91		88
	60			30			92	92	89	87			94	92	91		86
	60			40			92	92	90	88			94	93	91		88
	60			60			92	91	90	88			94	93	91		88
	60			80			92	92	90	88			94	93	91		88
		60		100			92	92	90	88			94	93	91		88
	100			40			92	91	90	88			94	93	91		88
	100			60			92	91	90	88			94	93	91		88
	100			80			92	92	90	88			94	92	91		88
		100		100			92	92	90	88			94	92	91		88

ORDERING INFORMATION

Explanation of Catalog Number. Example: VRA2G12LS232120SOGLR

VR		A		2			12			S
		BODY	STYLE:		CEILING TYPE:				LOUVER
	A=Air Handling				G= Grid				FINISH*:
	S=Static					(lay-in T bar)		L=Low
					T=Slot grid or				Iridescence
VR:				FIXTURE	two-directional		NUMBER OF		Semi-specular	SINGLE “V”
4" Deep				WIDTH	concealed T		CELLS:		(standard)	REFLECTOR
Pre-anodized					(see options)		(2 rows of	P=Low
Aluminum							6 cells)
									Iridescence

Louver	Specular
For Normal
VDT Use

2

LAMP

QUANTITY

LAMP TYPE/

FIXTURE

LENGTH: 32=T8

34=T12

VOLTAGE:					OPTIONS:
120 or 277				Add appropriate
				suffix to catalog
					no, ie: (GLR)
		BALLAST TYPE:
2	Lamp Mag. T12			LE		<10THD
			<20THD
2	Lamp Elec. T8			SO*			HI*
LOL T8 Dimming				PS			–

*Instant Start Standard

Other dimming options consult factory.

OPTIONS & ACCESSORIES

PLASTER FRAME: Catalog Number: PF24.

CONTINUOUS ROW INSTALLATION: For F type fixtures, half-width flanges are

required between fixtures, Order Catalog Number: S2CTRIM (each joint).

SPLAY TRIM: For T ceiling type only. SUFFIX: CTZ24 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 ACS4 (factory installed).

DRYWALL KIT: Order Catalog Number: FK92X4. (Request Folio OA30-10.)

CHICAGO PLENUM: SUFFIX: CP.

SPECIFICATIONS

PERFORMANCE: In an installation of 2 lamp 32W luminaires in a room cavity ratio of 1, reflectance 80% ceiling, 50% wall, 20% floor, the C.U. shall not be less than .77 with a spacing to mounting ratio of 1.8 perpendicular to the lamps. To meet IES RP1 preferred requirements for VDT areas the VCP (visual comfort proba- bility) shall not be less than 92 either crosswise or lengthwise and the maximum average brightness at 65°, 75° and 85° shall not exceed 345, 61 and 36 candelas per square meter respectively in the 0°, 45°, and 90° horizontal planes. Candelas at Nadir (0°) not to exceed 1510.

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.

Job Information	Type:
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