Lightolier LIS6G20LW228 User Manual

Lytecel Recessed Fluorescent LIS6G20LW228

Page 1 of 2 6" wide x 48", 20 Cell (1 Row) Parabolic Louver,

Air Return/Static, 2 Lamp T5, IES RP1 For VDT Areas

Features

• 52.0% efficient (2 lamp) semi-specular louver.

• 55.3% efficient (2 lamp) specular louver.

• 1.3 spacing mounting ratio semi-specular louver

• 1.5 spacing mounting ratio specular louver.

• Semi-specular or specular, low iridescence, pre-anodized
aluminum louver.

• Vertical grain on cross blades eliminates reflected lamp image.

• Spring loaded latches (self centering).

• Louver has protective dust guard.

• Only 5-1/2" deep body.

• Black housing exterior for cooler ballast operating temperature.

• UL-Listed twin knockout access plate.

• Can be mounted in continuous rows.

• 2 hold-down clips standard.

• Compatible with Armstrong TECHZONE

• Meets NYC Code requirements.

• Construction to meet Chicago Plenum Code is available.

• Optional DALI ballast accepts digital dimming commands from
computers, scene controllers and automatic control devices.

Mounting Methods Dimensions

exposed T-grid ceiling.

G

®

exposed slot T-grid ceiling.

T

ceiling systems.

6"

hold-down clips (1 at each end)

2" max.

15/16"

or

9/16"

6"

A/D

6"

Tegular grid ceiling

2" max.

9/16"

2" max.

15/16"

or

9/16"

5-1/2"

(139mm)

4-1/4" (108mm)

6" (162mm)

2" x 2-1/2" Access Plate
with (2) 7/8" K.O.s

7-3/8"

(187mm)

1-3/4" (44mm)

39-1/4" (997mm)

48"

(1220mm)

Job Information Type:

Job Name:

Cat. No.:

48"

(1200mm)

Joint of Two Units

Air Return Slots
(LIA only)

48"

(1200mm)

Shown in Armstrong TECH ceiling.

3/07

Lamp(s):

Volts/Ballast:

Lightolier a Genlyte company www.lightolier.com

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.
© 2007 a Genlyte company

Section 2/Folio G07-34

Lytecel Recessed Fluorescent LIS6G20LW228

Page 2 of 2 6" wide x 48", 20 Cell (1 Row) Parabolic Louver,

Air Return/Static, 2 Lamp T5, IES RP1 For VDT Areas

Model No. LIS6G20LW228120PG

LER = FP - 43.3 IW - 66.0 BF - 1.0
Comparative yearly lighting energy cost per

1000 lumens = $5.54

Report Number: G1206007
Catalog Number: LIS6G20LW228120PG
Lamp: F28 T5
Luminaire: 6" wide Troffer with semi­specular louver and white reflector.
Ballast: Advance ICN-2S28
Report is based on 2750 Lumens per lamp.
Efficiency: 52.0%

CIE Type-Direct-Indirect
Plane: 0-Deg 90-Deg
Spacing Criteria: 1.2 1.3
Shielding Angles: 90 90
Plane: 0-Deg 90-Deg
Luminous Length: 47.943 5.816

COEFFICIENTS OF UTILIZATION –

ZONAL CAVITY METHOD. EFFECTIVE
FLOOR CAVITY REFLECTANCE 0.20

RC 80 50 30
RW 70 50 30 50 30 10 50 30 10

1 58 56 55 53 52 51 51 50 49
2 54 51 48 48 46 45 47 45 44
3 50 46 43 44 41 39 43 41 39
4 47 42 38 40 37 35 39 36 34
5 44 38 34 37 33 31 36 33 31
6 41 35 31 33 30 28 33 30 27
7 38 32 28 31 27 25 30 27 25
8 35 29 25 28 25 23 28 25 22
9 33 27 23 26 23 20 26 23 20

10 31 25 21 24 21 19 24 21 19

LUMINANCE DATA IN CANDELA/SQ. METER

AVERAGE AVERAGE AVERAGE AVERAGE

IN DEG. 0-DEG. 45-DEG. 90-DEG.

45 6515. 6821. 6766.
55 4728. 3371. 1327.
65 342. 473. 408.
75 64. 107. 193.
85 64. 128. 191.

0

CANDELA DISTRIBUTION

0.0 45.0 90.0 FLUX

0 1373 1373 1373

5 1300 1383 1363 133

15 1278 1420 1516 393

25 1188 1382 1403 614

35 1023 1139 1216 711

45 829 868 861 668

55 488 348 137 288

65 26 36 31 37

75 3596

85 1232

90 121

TYPICAL V.C.P.'s

Mounting Height

Room Luminaires Luminaires

Size 0 Deg Plane 90 Deg Plane

30x30 87 84 80 71 93 89 85 76
40x40 87 84 81 78 94 91 89 80
60x30 87 84 81 77 93 89 87 78
60x60 87 83 81 79 94 91 90 83

100x100 88 83 81 79 94 92 91 86

ZONAL LUMEN SUMMARY

ZONE LUMENS % LAMP % FIXT

00-030 1144 20.8 40.0
00-040 1856 33.7 64.9
00-060 2812 51.1 98.4
00-090 2858 52.0 100.0

90-180 0000 0.0 000.0

00-180 2858 52.0 100.0

Lengthwise Crosswise

8.5 10 8.5 10 8.5 10 8.5 10

Model No. LIS6G20PW228120PG

LER = FP - 45.8 IW - 66.0 BF - 1.0
Comparative yearly lighting energy cost per

1000 lumens = $5.24
Report Number: G1206008
Catalog Number: LIS6G20PW228120PG
Lamps: F28 T5
Luminaire: 6" wide Troffer with semi­specular louver and specular reflector.
Ballast: Advance ICN-2S28
Report is based on 2750 Lumens per lamp.

Efficiency: 55.3%
CIE Type-Direct-Indirect

Plane: 0-Deg 90-Deg
Spacing Criteria: 1.3 1.5
Shielding Angles: 90 90
Plane: 0-Deg 90-Deg
Luminous Length: 47.943 5.816

COEFFICIENTS OF UTILIZATION –

ZONAL CAVITY METHOD. EFFECTIVE
FLOOR CAVITY REFLECTANCE 0.20

RC 80 50 30

RW 70 50 30 50 30 10 50 30 10

1 62 60 58 56 55 54 54 53 52
2 58 54 51 51 49 47 50 48 46
3 54 49 46 47 44 42 45 43 41
4 50 45 41 43 39 37 41 39 36
5 46 40 36 39 35 33 38 35 32
6 43 37 33 35 32 29 35 31 29
7 40 34 30 33 29 26 32 29 26
8 38 31 27 30 26 24 29 26 24
9 35 29 24 28 24 22 27 24 21

10 33 26 22 26 22 20 25 22 20

LUMINANCE DATA IN CANDELA/SQ. METER

AVERAGE AVERAGE AVERAGE AVERAGE

IN DEG. 0-DEG. 45-DEG. 90-DEG.

45 7018. 7568. 7701.
55 5677. 3652. 1095.
65 13. 460. 381.
75 21. 86. 193.
85 64. 128. 255.

0

CANDELA DISTRIBUTION

0.0 45.0 90.0 FLUX

0 1348 1347 1348

5 1337 1348 1377 134

15 1278 1470 1522 414

25 1184 1483 1448 649

35 1079 1221 1262 756

45 893 963 980 737

55 586 377 113 314

65 1 35 29 27

75 1495

85 1242

90 011

TYPICAL V.C.P.'s

Mounting Height

Room Luminaires Luminaires

Size 0 Deg Plane 90 Deg Plane

30x30 86 76 73 71 93 88 85 70
40x40 86 76 75 74 94 90 87 79
60x30 86 76 75 76 93 88 85 77
60x60 86 77 76 76 94 91 89 82

100x100 86 77 76 76 93 92 91 85

ZONAL LUMEN SUMMARY

ZONE LUMENS % LAMP % FIXT

00-030 1198 21.8 39.4
00-040 1954 35.5 64.3
00-060 3004 54.6 98.8
00-090 3039 55.3 100.0

90-180 0000 0.0 000.0

00-180 3039 55.3 100.0

Lengthwise Crosswise

8.5 10 8.5 10 8.5 10 8.5 10

Ordering Information

Explanation of Catalog Number. Example: LIS6G20LW228120PG

20

Number of

Cells:

1 row of

20 cells

Louver Finish:

L=Low

Iridescence
Semi-

P=Low

Iridescence
S

pecular

LI:

Lytecel 6"

Standard Lytecel

LI

For NYC Code – Local 3 Manufactured

LN

Body Style:

A =Air Return
S =Static

6

Fixture

Width

Ceiling Type:

G = 9/16" or

15/16"Grid

T = Slot Grid
A = 9/16" Tegular

Grid

D = 15/16" Tegular

Grid

Options/Accessories

Access Plate: Top Wiring access plate is shipped with fixture

access plates are required in advance for wiring convenience, specify separately.
Order Catalog Number: ACP5 CSP.

Electrical/Wiring Options: Consult factory.
EM Pack or Dimming Ballast: Consult factory.
Fusing: Internal fast-blow fusing. Suffix: GLR.

Internal slow-blow fusing. Suffix: GMF.

Chicago Plenum: Suffix: CP.

as standard. When

Specifications

Performance: In an installation of 2 lamp 28W semi-specular luminaires in a

room cavity ratio of 1, reflectance 80% ceiling, 50% wall, 20% floor, the C.U.
shall not be less than .56 with a spacing to mounting ratio of 1.3 perpendicular
to the lamps. To meet IES RP-1 for VDT areas the VCP (visual comfort
probability) shall not be less than 87 either crosswise or lengthwise and the
candela value between 55° and 90° in the 0° to 90° planes shall not exceed

2858. Candelas at Nadir (0°) not to exceed 1373.

Air Handling-(LIA) side air passages for air return.
Materials: Chassis parts are die-formed cold rolled steel.
Louver: Pre-anodized aluminum (Coilzak®or equal).

2

Lamp

Quantity:

(By others)

2=2 Lamp

Lamp Fixture

Length:

28=T5
54=T5HO

(Nominal 48")

Voltage:

120, 277 or

UNV=120-277

Ballast Type:

2 Lamp 28w Elec. T5 –PI††
2 Lamp 28w Elec. T5 – PG††
2 Lamp 54w Elec. T5 – PG††

††Instant Start (120, 277 or UNV)

††Program Rapid Start (UNV only)
DA=DALI digital addressable dimming.

Add appropriate
suffix to catalog

no, ie: (GLR)

<20THD <10THD

specular

W

W

Reflector:

=White Reflector

Specifications (continued)

Finish: Louver—specular or semi-specular low iridescence pre-anodized
reflector sheet. Reflector: White baked polyester enamel or specular reflector.
Chassis exterior—black baked polyester enamel.
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:

Lightolier a Genlyte company www.lightolier.com

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.
© 2007 a Genlyte company

Section 2/Folio G07-34

Options: