Lightolier MPA2G78LS432 Page 2 of, Photometry, Ordering Information, Options & Accessories, Type

SECTION 2/Folio G20-20

PARABAFFLE plus MPA2G78LS432

Page 2 of 2	2'x4' RECESSED FLUORESCENT, 1 1/2" DEEP, 78 CELL PARABOLIC LOUVER
				STATIC OR AIR SUPPLY/RETURN, 4 LAMP, T8 OR T12
PHOTOMETRY	MODEL NO. MPA2G78LS432								Luminaire Efficacy Rating
									LER-54.8	Watts-116.2		BF-0.86
		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	69	67	65	63	62	60	61	59	58
		ratio	2	64	60	57	57	54	52	55	53	51
			3	59	54	50	51	48	45	50	47	44
		cavity	4	55	48	44	46	42	39	45	41	39
			5	51	44	39	42	38	35	41	37	34
		room	6	47	40	35	38	34	31	37	33	30
			7	44	36	31	35	30	27	34	30	27
			8	41	33	28	32	28	25	31	27	24
			9	38	30	26	29	25	22	29	25	22
			10	36	28	23	27	23	20	27	23	20

visual comfort probability (VCP) average 100 fc; reflectances 80/50/20

	room size			ceiling height
W	L		8.5	10.0	13.0	16.0
20	20		84	78	72	77
20	30		86	81	76	73
20	40		86	81	80	76
20	60		86	82	80	79
30	20		85	82	73	75
30	30		86	85	77	71
30	40		86	85	81	75
30	60		86	85	81	78
30	80	lengthwise	86	85	81	78	crosswise
40	40		86	85	82	76
40	20		85	82	75	76
40	30	luminaries	86	85	80	72	luminaries
40	60		87	85	82	79
40	80		87	85	82	79
40	100		87	85	82	79
60	30		86	85	80	75
60	40		86	85	82	78
60	60		87	85	82	81
60	80		87	85	82	80
60	100		87	85	82	80
100	40		87	85	82	78
100	60		87	85	82	80
100	80		87	85	82	80
100	100		87	85	82	80

ceiling height

8.5	10.0	13.0	16.0
82	75	67	73
82	79	72	67
82	79	76	71
82	79	76	75
82	80	70	73
82	83	74	67
82	83	78	71
83	83	78	75
83	83	78	75
82	80	72	74
82	83	77	69
83	83	80	73
83	83	80	76
83	83	80	76
83	83	80	76
83	83	77	73
83	83	80	76
83	83	80	77
83	83	80	78
83	83	80	77
83	83	80	76
83	83	80	77
83	83	80	77
83	83	80	77

ORDERING INFORMATION

Explanation of Catalog Number. Example: MPA2G78LS432120O4RF

MP 2 78

S

4

BODY STYLE:			CEILING TYPE:		LOUVER		LAMP
A=Air Supply		G= Grid			FINISH*:		QUANTITY
S=Static			(lay-in T bar)		L= Low
		F=Flanged			Iridescence			LAMP TYPE/
PARABAFFLE	FIXTURE			NUMBER OF		SINGLE
			(overlap)		Semi-specular
1-1/2" PARABOLIC:	WIDTH		Z spline and	CELLS	(standard)	REFLECTOR		FIXTURE
Pre-anodized			plaster frame		P= Low			LENGTH:
aluminum louver								32=T8
		T=Slot grid or			Iridescence
								34=T12
			two-directional		Specular
								(Nominal 48")
			concealed T		W=White Baked
			(see options)		Enamel

VOLTAGE:		OPTIONS:
120 or 277		Add appropriate
		suffix to catalog
		no, ie: (RF)
	BALLAST TYPE:
2-2	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

PLASTER FRAME: Catalog Number: PF24.

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: 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 STRIP: SUFFIX: ACS4 (factory installed).

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, with reflectance of 80% ceiling, 50% wall, 20% floor, the C.U. shall not be less than .67. To prevent glare the VCP shall be not less than 80 either lengthwise or crosswise (at 100fc level) and the average brightness at 65° shall not exceed 1098 candelas per square meter. To control veiling reflections, luminaire output in the 30°-90° zone shall not be less than 64.8%.

AIR HANDLING (MPA 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 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 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