Lightolier PRISMALYTE plus PRA2GRFVA26U, Prismalyte Plus PRA2GRFVA217, Prismalyte Plus PRA2GRFVA26U120SO, Prismalyte Plus PRA2GRFVA26UUNVHI Specification

Prismalyte Plus PRA2GRFVA26U or 217

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

Static or Air Supply/Return, 2 Lamp, T8

• 5" deep body.

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

• 71.6% efficient (2 lamp T8).

• Black housing exterior for cooler ballast operating temperature.

• Clean contoured interior.

• Eyeleted heat removal vents in fixture ends.

• 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: FK92X2.

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)

24" (610mm)

Air supply slots
(PRA only)

5"

(127mm)

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

Job Information Type:

Job Name:

15-11/16"

(398mm)

5" (127mm)

5" (127mm)

23-7/8"

(606mm)

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 E20-32 Rev. A

09/09

Prismalyte Plus PRA2GRFVA26U or 217

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

Static or Air Supply/Return, 2 Lamp, T8

luminaries crosswise

Photometry Model No. PRA2GRFVA26U120SO

THIS REPORTIS BASEDON PUBLISHEDINDUSTRY PROCEDURES• FIELDPERFORMANCE MAYVARY FROMLABORATORY PERFORMANCE.

LER = FP - 58.4 IW - 56.5 BF - 0.87
Comparative yearly lighting energy cost per 1000 lumens = $4.25

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 76 73 71 69 67 68 66 65
2 72 67 62 63 60 57 61 58 55
3 66 60 54 56 52 49 54 51 48
4 61 53 48 51 46 42 49 45 42
5 57 48 42 46 41 37 44 40 37
6 53 44 38 42 37 33 41 36 33
7 49 40 34 38 33 29 37 33 29

room cavity ratio

8 46 36 31 35 30 26 34 30 26
9 43 34 28 32 27 24 32 27 24

10 40 31 26 30 25 22 29 25 22

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 57 61 67 73 54 58 64 70

20 30 49 53 58 64 46 50 55 60
20 40 46 48 53 57 42 45 49 54
20 60 42 45 48 52 38 41 43 48

30 20 58 63 67 72 56 61 65 70
30 30 50 54 58 63 47 51 55 60
30 40 46 49 52 56 42 45 49 53
30 60 42 45 47 50 39 41 43 47
30 80 41 43 43 47 38 39 40 43

40 20 60 64 68 72 58 63 67 70
40 30 51 55 59 63 49 53 57 61
40 40 47 50 53 56 44 47 50 53
40 60 43 46 47 50 40 42 43 47
40 80 42 43 43 46 38 40 40 43
40 100 42 43 42 44 39 39 38 40

60 30 52 56 60 64 51 55 58 62
60 40 48 50 53 57 45 48 51 55
60 60 44 46 47 50 41 43 44 48
60 80 42 44 43 46 39 40 40 43
60 100 42 43 42 44 39 39 38 40

100 40 51 53 55 59 49 52 54 57
100 60 47 48 48 52 45 46 46 50
100 80 45 45 45 48 43 43 42 45
100 100 44 44 43 45 42 41 40 41

luminaries lengthwise

Ordering Information

Explanation of Catalog Number. Example: PRA2GRFVA26UUNVHI

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:

Air Closure Strip: SUFFIX ACS2 (factory installed).
Electrical Wiring Options: Consult factory.
Drywall Kit: Order Catalog Number: FK92X2.

(Request Folio OA30-10 Rev. A).

Chicago Plenum: SUFFIX: C.

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 .76. To prevent
glare the VCP shall be not less than 41 either lengthwise or crosswise (at 100fc level) and
the average brightness at 65° shall not exceed 2572 candelas per square meter. To control
veiling reflections, luminaire output in the 30°-90° zone shall not be less than 66.9%.
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

Standard Prismalyte Plus

For NYC Code – I.B.E.W. Manufactured

For NYC Code – Local 3 Manufactured

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

Fixture

Width

Ceiling Type:

G= Grid

(lay-in T bar)

T= Slot grid or

two-directional
concealed T
see options)

RF

Lens Frame:

RF=1/2" regressed

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

2

Lens Shielding

Type:

VA=Virgin acrylic

(standard), see
options and
consult factory

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

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

Lamp

Quantity

Lamp Type/

Fixture Length:
6U =

6"U Lamp T8

17 =

T8

(Nominal 24")

Note: For Linear
T5 Lamp option,

consult factory

Voltage:

120, 277 or

UNV=120-277

1–2 Lamp Elec. T8 SO * H
LOL T8 Dimming PS –

*Instant Start Standard
Other dimming options. Consult factory.

NOTE:
For T8 UNV, you must use H

Ballast Type:

<20THD <10THD

I

with side rails hemmed over and hous-

Section 1A/Folio E20-32 Rev. A

Add appropriate suffix to

catalog no., ie: (C)

I *

Ballast Code.

Options:

Lightolier is a Philips group brand