Lightolier Prismalyte Plus PRA1GRFVA232 Specification

Prismalyte Plus PRA2GRFVA232

Page 1 of 2 2' x 4' Recessed Fluorescent, Floating Lens Frame, Black Reveal

Static or Air Supply/Return, 2 Lamp, T8 or T5

• 5" deep body.

• 2-9/16" lamp to lens for better lamp obscuration.

• 77.9% efficient (2 lamp T8).

• Black housing exterior for cooler ballast operating temperature.

• Clean contoured interior.

• Eyeleted heat removal vents in fixture ends.

• One-piece housing has ribbed construction for added strength.

• Hemmed over side rails for maximum safety.

• Fixture ends turned-in for safe handling.

• Built-in earthquake clips.

• Door jamb finished black on four sides for positive light stop.

• True mitered corner aluminum lens frame.

• Spring loaded rooster head latches.

• 18 gauge steel hinges.

• Construction to meet NYC Code Requirements or Chicago Plenum is
available.

Mounting Methods Dimensions

exposed T-grid ceiling.

G

exposed slot T-grid ceiling.

T

1/4" max.

24"

drywall kit. (See options)

Type “G”

Fixture

Order Catalog Number: FK92X4.

1-1/2" max.

15/16"

or 1"

Support
(by others)

Drywall Kit

(See Options)

Drywall
(by others)

24"

1-7/8" max.

9/16"

24" (610mm)

6" (152mm) Air supply slots

2" x 2-1/2" access plate
with two K.O.s
(7/8" dia.)

39-1/4" (997mm)

47-31/32" (1218mm)

Job Information Type:

Job Name:

5" (127mm)

(PRA only)

earthquake clip

before

installation

Lightolier is a Philips group brand

earthquake clip

installed

(lay-in grid)

Cat. No.:

Lamp(s):

Volts/Ballast:

For Factory Technical Information: [phone] • Fax [phone]
631 Airport Road, Fall River, MA 02720 • [phone] • Fax [phone]
We reserve the right to change details of design, materials and finish.
www.lightolier.com © 2009 a Philips Group

Section 1A/Folio E20-40 Rev. A

09/09

Prismalyte Plus PRA2GRFVA232

Page 2 of 2 2' x 4' Recessed Fluorescent, Floating Lens Frame, Black Reveal

Static or Air Supply/Return, 2 Lamp, T8 or T5

luminaries lengthwise

luminaries crosswise

Photometry Model No. PRA2GRFVA232120SO

THIS REPORTIS BASEDON PUBLISHEDINDUSTRY PROCEDURES• FIELD PERFORMANCEMAY VARYFROM LABORATORYPERFORMANCE.

LER = FP - 61.2 IW - 63.1 BF - 0.87
Comparative yearly lighting energy cost per 1000 lumens = $3.92

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 85 82 79 77 75 73 74 72 70
2 78 72 67 68 64 61 66 62 60
3 72 64 58 61 56 52 59 55 51
4 66 57 51 54 49 45 53 48 44
5 61 51 45 49 43 39 47 43 39
6 56 47 40 44 39 35 43 38 34
7 52 42 36 41 35 31 39 34 31

room cavity ratio

8 49 39 32 37 32 28 36 31 28
9 46 36 29 34 29 25 33 28 25

10 43 33 27 32 26 23 31 26 23

visual comfort probability (rated lumens per lamp 3150.)

room size ceiling height ceiling height
WL8.5 10.0 13.0 16.0 8.5 10.0 13.0 16.0
20 20 66 70 77 84 65 68 74 81

20 30 60 64 69 75 60 63 66 72
20 40 56 59 64 69 58 60 63 66
20 60 53 56 59 64 56 58 60 62

30 20 68 72 76 82 67 70 74 80
30 30 61 64 68 73 62 64 66 71
30 40 57 60 63 67 59 61 62 65
30 60 53 56 58 62 57 58 59 61
30 80 52 54 55 59 56 58 57 59

40 20 70 73 77 82 69 72 75 80
40 30 63 66 69 73 64 66 67 71
40 40 58 61 63 67 60 62 63 65
40 60 54 56 58 61 58 59 59 61
40 80 52 54 54 58 57 58 57 59
40 100 52 53 53 55 57 58 56 57

60 30 64 67 70 74 65 67 69 72
60 40 60 62 64 67 61 63 64 66
60 60 55 57 58 61 59 60 59 61
60 80 53 54 54 57 57 58 57 59
60 100 53 53 52 55 57 58 56 57

100 40 63 65 66 69 64 66 66 68
100 60 59 60 60 63 61 62 61 63
100 80 56 57 56 59 60 60 59 60
100 100 55 55 54 56 59 59 57 58

Ordering Information

Explanation of Catalog Number. Example: PRA2GRFVA232UNVHI

2

Prismalyte

Plus:

Floating

Lens Frame

Recessed

Fluorescent

Troffer

PR

PK

PX

Options/Accessories

Special Lenses: Substitute VY 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.
Radio Interference Filter:
SUFFIX: B.

Air Closure Strip: SUFFIX ACS4 (factory installed).
Electrical Wiring Options: Consult factory.
Drywall Kit: Order Catalog Number: FK92X4.

(Request Folio OA30-10 Rev. A).

Chicago Plenum: SUFFIX: C.

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 .82. To prevent
glare the VCP shall be not less than 55 either lengthwise or crosswise (at 100fc level) and
the average brightness at 65° shall not exceed 1649 candelas per square meter. To control
veiling reflections, luminaire output in the 30°-90° zone shall not be less than 68.7%.
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.

Body Style:
A=Air

Handling

S=Static

Fixture

Width

Standard Prismalyte Plus

For NYC Code – I.B.E.W. Manufactured

For NYC Code – Local 3 Manufactured

Ceiling Type:

G= Grid

(lay-in T bar)

T= Slot grid or

two-directional
concealed T
see options)

To order one RIF per fixture; SUFFIX: R. To order one RIF per ballast;

RF

Lens Frame:

RF=1/2" regressed

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

VA=Virgin acrylic

2

Lens Shielding

Type:

(standard), see
options and
consult factory

Lamp

Quantity

Specifications (continued)

Materials: Chassis parts are die-formed code gauge cold rolled steel. Housing

ing 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 pattern 12). VY (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 ULc Listed.
This product may have a mercury containing lamp.
Manage in accord with Disposal Laws. See: www.lamprecycle.org

Lamp Type/

Fixture Length:

32=32W T8
28=28W T5
54=54W T5

(Nominal 48")

Job Information Type:

For Factory Technical Information: [phone] • Fax [phone]
631 Airport Road, Fall River, MA 02720 • [phone] • Fax [phone]
We reserve the right to change details of design, materials and finish.
www.lightolier.com © 2009 a Philips Group

Voltage:

120, 277 or

UNV=120-277

1-2 Lamp Elec. T8 SO * H
1-2 Lamp 28W Elec. T5 – P
1-2 Lamp 28W Elec. T5 – †PG ††
1-2 Lamp 54W Elec. T5 – †PG ††

LOL T8 Dimming PS –
Other dimming options. Consult factory.

†*Instant Start Standard
††Instant Start (120, 277 or UNV)

††Program Rapid Start (UNV only)
NOTE: For T8 UNV, you must use HIBallast Code.

Ballast Type:

<20THD <10THD

Add appropriate suffix to

catalog no., ie: (C)

I *
I †

with side rails hemmed over and hous-

Section 1A/Folio E20-40 Rev. A

Options:

Lightolier is a Philips group brand