Lightolier PRA2GRFVA432 Photometry, Ordering Information, Options & Accessories, Specifications

Section 1A/Folio E20-44

	PRISMALYTE plus PRA2GRFVA432
Page 2 of 2	2'x4' RECESSED FLUORESCENT, FLOATING LENS FRAME WITH BLACK REVEAL
	STATIC OR AIR SUPPLY/RETURN, 4 LAMP, T8 OR T12

PHOTOMETRY

MODEL NO. PRA2GRFVA432							Luminaire Efficacy Rating
							LER-68.7	Watts-109.5 BF-0.86
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	84	81	78	76	74	72	73	71	69
ratio	2	77	71	67	67	64	60	65	62	59
	3	71	63	58	60	55	52	58	54	51
cavity	4	65	57	51	54	49	45	52	48	44
	5	60	51	45	49	43	39	47	43	39
room	6	56	46	40	44	39	35	43	38	34
	7	52	42	36	40	35	31	39	34	31
	8	49	39	32	37	32	28	36	31	28
	9	45	36	30	34	29	25	34	29	25
	10	43	33	27	32	27	23	31	26	23

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		61	65	72	79		58	63	69	76
20	30		54	58	63	69		50	54	60	66
20	40		50	53	58	62		45	49	54	59
20	60		46	49	52	57		41	45	48	53
30	20		62	67	71	77		60	65	69	75
30	30		54	58	62	67		51	55	60	65
30	40		50	53	56	60		46	49	53	57
30	60		46	49	51	54		41	45	47	51
30	60	lengthwise	44	46	47	51	crosswise	39	42	43	47
40	40		50	53	57	60		47	50	54	57
40	20		63	68	72	76		62	67	71	75
40	30		55	59	63	67		53	57	61	65
40	60	luminaries	46	49	51	54	luminaries	42	45	47	51
40	80		44	46	47	50		40	42	43	47
40	100		44	45	45	48		39	41	41	44
60	30		56	60	64	67		54	59	62	66
60	40		51	54	57	60		48	52	55	58
60	60		46	49	50	54		43	46	47	51
60	80		44	46	47	50		40	43	43	46
60	100		43	45	45	47		39	41	41	43
100	40		53	56	58	62		52	55	57	61
100	60		49	51	52	55		46	49	50	53
100	80		46	48	48	51		43	45	45	48
100	100		45	46	45	48		41	42	42	44

ORDERING INFORMATION

Explanation of Catalog Number. Example: PRA2GRFVA432120O4RF

PR

2 RF VA 4

BODY STYLE:

A=Air Handling

S=Static

PRISMALYTE plus:

Floating

Lens Frame

Recessed

Fluorescent

Troffer

	CEILING TYPE:	LENS/SHIELDING	LAMP TYPE/
	G= Grid	TYPE:	FIXTURE LENGTH:
	(lay-in T bar)	VA=Virgin acrylic	32=T8
	T=Slot grid or	(standard), see	34=T12
	two-directional	options and	(Nominal 48")
FIXTURE	concealed T	LENS FRAME: consult factory	LAMP
WIDTH	see options)	RF=1/2" regressed	QUANTITY

floating aluminum frame with 7/16" black reveal four sides.

		OPTIONS:
		Add appropriate
VOLTAGE:	suffix to catalog no.,
120 or 277		ie: (RF)
BALLAST TYPE:
2 Lamp Mag. T12	LE	<10THD
	<20THD
2-2 Lamp Elec. T8	SO*	HI*
1-4 Lamp Elec. T8	O4*	H4*
LOL T8 Dimming	PS	–

*Instant Start Standard

Other dimming options. Consult factory.

OPTIONS & ACCESSORIES

SPECIAL LENSES: Substitute VB for VA (standard) = .125" nominal pattern 12 with 7.8 oz. average weight per square foot. Substitute VI for VA (standard) =

.125" nominal pattern 12 with 6.8 oz. average weight per square foot. 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.

AIR CLOSURE STRIP: SUFFIX ACS4 (factory installed).

ELECTRICAL WIRING OPTIONS: Consult factory.

DRYWALL KIT: Order Catalog Number: FK92X4.

(Request Folio OA30-10.)

CHICAGO PLENUM: SUFFIX: CP.

SPECIFICATIONS

PERFORMANCE: In an installation of 4 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 .81. To prevent glare the VCP shall be not less than 43 either lengthwise or crosswise (at 100fc level) and the average brightness at 65° shall not exceed 2805 candelas per square meter. To control veiling reflections, luminaire output in the 30°-90° zone shall not be less than 67.3%.

AIR HANDLING: (PRA 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. MATERIALS: Chassis parts are die-formed code gauge cold rolled steel. Housing with side rails hemmed over and housing ends turned-in for safe handling. FINISH: Chassis exterior—black baked polyester enamel. Cavity—white baked polyester enamel minimum 86% reflectance. Phosphate undercoating. LENSES: VA (standard) extruded virgin acrylic, 3/16" square based female cones, running 45° to the panel edge, .095" nominal thickness (similar to pat- tern 12). VB (optional) .125" nominal pattern 12 with 7.8 oz. average weight per square foot. VI (optional) .125" nominal pattern 12 with 6.8 oz. average weight per square foot.

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-ULc Listed.

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