Download Lightolier PRA2GRFVA2FT User's Manual

PRISMALYTE plus
Page 1 of 2
PRA2GRFVA3FT or 2FT
2'x2' RECESSED FLUORESCENT, FLOATING LENS FRAME WITH BLACK REVEAL
STATIC OR AIR SUPPLY/RETURN, 2 OR 3 LAMP, TWIN TUBE T5
Features
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5" deep body.
2-9/16" lamp to lens for better lamp obscuration.
75.4% efficient (3 lamp TT5).
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 (patent no. 5,072,344).
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.
2 lamp TT5 available.
MOUNTING METHOD
G
exposed T-grid ceiling.
DIMENSIONS
T
exposed slot T-grid ceiling.
5" (127mm)
24" (610mm)
1/4" max.
15/16"
or 1"
24"
drywall kit. (See options)
Type “G”
Fixture
Support
(by others)
24" (610mm)
9/16"
24"
Air supply slots
(PRA only)
T
direct concealed two directional
T-grid ceiling. (see options for
splay trim)
CL
15-11/16"
(398mm)
5"
(127mm)
1-7/8" max.
2"x 2-1/2" access plate
with two K.O.s (7/8" dia.)
15/16"
24"
24-5/16" x 24-5/16"
23-7/8"
(606mm)
3-1/2"
(89mm)
1/4" max.
Drywall Kit
(See Options)
Drywall
(by others)
Ceiling Opening
5" (127mm)
1-7/8" max.
1-1/2" max.
3/8"
Job Information
Type:
Job Name:
Cat. No.:
Lamp(s):
Volts/Ballast:
earthquake clip
before
installation
earthquake clip
installed
(lay-in grid)
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
Section 1A/Folio E20-34
PRA2GRFVA3FT or 2FT
PRISMALYTE plus
Page 2 of 2
2'x2' RECESSED FLUORESCENT, FLOATING LENS FRAME WITH BLACK REVEAL
STATIC OR AIR SUPPLY/RETURN, 2 OR 3 LAMP, TWIN TUBE T5
PHOTOMETRY
Luminaire Efficacy Rating
LER-42.7 Watts-98.0 BF-0.88
MODEL NO. PRA2GRFVA3FT
10
69
59
51
44
39
35
31
28
26
23
luminaries crosswise
luminaries lengthwise
room cavity ratio
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
1
83
80
77
75
73
71
72
70
2
76
71
66
67
63
60
64
61
3
70
63
58
60
55
52
58
54
4
65
57
51
54
49
45
52
48
5
60
51
45
49
44
40
47
43
6
56
46
40
44
39
35
43
38
7
52
42
36
41
35
31
39
35
8
48
39
33
37
32
28
36
32
9
45
36
30
34
29
26
34
29
10
43
33
27
32
27
23
31
27
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
ORDERING INFORMATION
Explanation of Catalog Number. Example: PRA2GRFVA3FT120X3RF
PR
2
BODY STYLE:
A=Air Handling
S=Static
PRISMALYTE plus:
Floating
Lens Frame
Recessed
Fluorescent
Troffer
FIXTURE
WIDTH
RF
CEILING TYPE:
G= Grid
(lay-in T bar)
T=Slot grid or
two-directional
concealed T
see options)
VA
FT
LENS/SHIELDING
TYPE:
VA=Virgin acrylic
(standard), see
options and
consult factory
LENS FRAME:
RF=1/2" regressed
floating aluminum
frame with 7/16"
black reveal four
sides.
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: CTZ22 S2 SPLAY TRIM.
RADIO INTERFERENCE FILTER: 120 or 277 volt, 50 or 60 Hz. One per fixture
standard. SUFFIX: RF.
AIR CLOSURE STRIP: SUFFIX ACS2 (factory installed).
ELECTRICAL WIRING OPTIONS: Consult factory.
DRYWALL KIT: Order Catalog Number: FK92X2.
Request Folio OA30-10.
CHICAGO PLENUM: SUFFIX: CP.
SPECIFICATIONS
PERFORMANCE: 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
LAMP TYPE/
FIXTURE LENGTH:
Twin Tube T5
(Nominal 24")
LAMP
QUANTITY
2=2 Lamp
3=3 Lamp
OPTIONS:
Add appropriate
suffix to catalog no.,
ie: (RF)
BALLAST TYPE:
< 20THD < 10THD
IB*
1 & 2 Lamp Elec. TT5
SB*
(40 Watt)
I3*
1-3 Lamp Elec. TT5
X3*
(40 Watt)
LOL TT5 Dimming
PB
–
*Instant Start Standard
Other dimming options. Consult factory.
VOLTAGE:
120 or 277
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 pattern 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 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
Section 1A/Folio E20-34