
Prismalyte Plus PRA2GRFVA2FT or 3FT
Page 2 of 2 2' x 2' Recessed Fluorescent, Floating Lens Frame, Black Reveal
Static or Air Supply/Return, 2 or 3 Lamp, Twin Tube T5
Ord ring Information
Explanation of Catalog Number. Example: PRA2GRFVA3FTUNVI3
Options/Acc ssori s
Sp cial L ns s: 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 Int rf r nc Filt r:
To order one RIF per fixture; SUFFIX: R. To order one RIF per ballast;
SUFFIX: B..
Air Closur Strip: SUFFIX ACS2 (factory installed).
El ctrical Wiring Options: Consult factory.
Drywall Kit: Order Catalog Number: FK92X2.
(Request Folio OA30-10 Rev. A).
Chicago Pl num: SUFFIX: C.
Sp cifications
P rformanc : In an installation of 3 lamp 40W luminaires in a room cavity ratio of 1,
reflectance 80% ceiling, 50% wall, 20% floor, the C.U. shall not be less than .71. To prevent
glare the VCP shall be not less than 36 either lengthwise or crosswise (at 100fc level) and
the average brightness at 65° shall not exceed 4656 candelas per square meter. To control
veiling reflections, luminaire output in the 30°-90° zone shall not be less than 66.2%.
Air Handling: (PRA only) side air passages for air supply or air return. Supply air is dis-
charged vertically. Optional side closure strips. Air return is also provided through the lamp
compartment through fixture body ends.
Sp cifications (continu d)
Mat rials:Chassis parts are die-formed code gauge cold rolled steel. Housing
with side rails hemmed over and hous-
ing ends turned-in for safe handling.
Finish:Chassis xt rior–black baked polyester enamel. Cavity–white baked polyester enamel minimum 86%
reflectance. Phosphate undercoating.
L ns s: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.
El ctrical: 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°.
Lab ls: 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
Photom try Mod l No. PRA2GRFVA3FT120X3 LER = FP - 42.7 IW - 76.0 BF - 0.88
Comparative yearly lighting energy cost per 1000 lumens = 5.62
THIS REPORT IS BASED ON PUBLISHED INDUSTRY PROCEDURES • FIELD PERFORMANCE MAY VARY FROM LABORATORY PERFORMANCE.
2
Fixtur
Width
C iling Typ :
G= Grid
(lay-in T bar)
T= Slot grid or
two-directional
concealed T
see options)
RF
L ns Shi lding
Typ :
VA=Virgin acrylic
(standard), see
options and
consult factory
Lamp
Quantity
2=2 Lamp
3=3 Lamp
FT
Lamp Typ /
Fixtur L ngth:
Twin Tube T5
(Nominal 24")
Not : For Linear
T5 Lamp option,
consult factory
Options:
Add appropriate suffix to
catalog no., ie: (C)
Ballast Typ :
<20THD <10THD
1 & 2 Lamp Elec. TT5 SB * IB *
(40 Watt)
1-3 Lamp Elec. TT5 X3 * I3 *
(40 Watt)
LOL TT5 Dimming PB –
(40 Watt)
*Instant Start Standard
Other dimming options. Consult factory.
NOTE:
For TT5 UNV, you must use
I
B,
I
3
Ballast Code.
co ffici nts of utilization — zonal cavity m thod (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 83 80 77 75 73 71 72 70 69
2 76 71 66 67 63 60 64 61 59
3 70 63 58 60 55 52 58 54 51
4 65 57 51 54 49 45 52 48 44
5 60 51 45 49 44 40 47 43 39
6 56 46 40 44 39 35 43 38 35
7 52 42 36 41 35 31 39 35 31
8 48 39 33 37 32 28 36 32 28
9 45 36 30 34 29 26 34 29 26
10 43 33 27 32 27 23 31 27 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 44 47 53 60 42 46 51 58
20 30 37 40 44 49 34 38 42 47
20 40 34 36 40 43 31 33 37 41
20 60 31 33 35 39 28 30 32 36
30 20 45 49 53 58 44 48 51 57
30 30 38 41 44 48 35 39 42 46
30 40 34 36 39 42 31 34 37 40
30 60 31 33 34 37 28 30 31 35
30 80 31 32 32 34 27 29 29 32
40 20 47 51 54 58 46 50 53 58
40 30 39 42 45 49 37 41 44 47
40 40 35 37 40 42 32 35 38 40
40 60 32 34 34 37 29 31 32 35
40 80 31 32 32 34 28 29 29 32
40 100 32 32 31 32 29 29 28 30
60 30 40 44 46 50 39 43 45 49
60 40 36 38 40 43 34 36 38 42
60 60 33 34 34 37 30 32 32 35
60 80 32 32 32 34 29 30 29 32
60 100 32 32 30 32 29 29 28 30
100 40 39 41 42 45 38 40 41 45
100 60 36 37 36 39 34 35 35 38
100 80 35 35 33 35 32 32 31 34
100 100 35 34 32 33 32 31 29 30
room cavity ratio
luminaries lengthwise
luminaries crosswise
Voltag :
120, 277 or
UNV=120-277
Body Styl :
A=Air
Handling
S=Static
PR Standard Prismalyte Plus
PK For NYC Code – I.B.E.W. Manufactured
PX For NYC Code – Local 3 Manufactured
Prismalyt Plus:
Floating Lens Frame
Recessed Fluorescent
Troffer
L ns Fram :
RF=1/2" regressed
floating aluminum
frame with 7/16"
black reveal four
sides.
For Factory Technical Information: (97 ) 657-7600 • Fax (97 ) 65 -0595
631 Airport Road, Fall River, MA 02720 • (50 ) 679- 131 • Fax (50 ) 674-4710
We reserve the right to change details of design, materials and finish.
www.lightolier.com © 2009 a Philips Group S ction 1A/Folio E20-34 R v. A
Job Information Type:
Lightolier is a Philips group brand