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  Ledalite Architectural Products Inc.   Cresendo  

Cresendo - Page 27

   

Cresendo

Crescendo 11"   

1 T8 - Direct/Indirect
PHOTOMETRY

Variable Optics Setting N:
75% Up 25% Down
Reports# 2100546
Efficiency 84.8%
Peak Candela Value 554 @ 115°
Peak:Zenith Ratio 1.6:1

Variable Optics Setting D:
40% Up 60% Down

Reports# 2100547
Efficiency 64.5%
Peak Candela Value 229 @ 147.5°
Peak:Zenith Ratio 1.4:1

CANDELA DISTRIBUTION

Vert. Angle

HorizontalAngle

 Zonal Lumens
0 22.5 45 67.5 90
0 296 296 296 296 296  
5 296 295 297 297 300 29
15 278 286 307 332 358 89
25 240 266 345 401 425 156
35 173 237 325 369 365 183
45 65 117 165 172 144 108
55 9 15 21 25 33 22
65 1 4 4 9 12 6
75 0 0 0 2 1 1
85 0 0 0 0 0 0
90 0 0 0 0 0  
95 9 89 51 58 42 71
105 53 188 338 371 335 279
115 109 225 380 506 554 356
125 168 237 413 503 536 337
135 223 268 390 510 551 299
145 269 300 355 429 473 230
155 306 324 355 381 396 164
165 331 340 352 364 370 100
175 344 345 347 349 350 34
180 346 346 346 346 346  

CANDELA DISTRIBUTION

Vert. Angle

HorizontalAngle

 Zonal Lumens
0 22.5 45 67.5 90
0 459 459 459 459 459  
5 462 466 479 481 493 48
15 452 492 564 606 633 157
25 385 484 604 647 653 259
35 307 433 520 558 540 297
45 117 200 286 326 290 196
55 16 25 54 123 118 64
65 4 4 5 20 20 12
75 0 0 0 0 0 1
85 0 0 0 0 0 0
90 0 0 0 0 0  
95 9 31 17 15 10 24
105 29 78 134 127 110 106
115 57 102 180 226 221 157
125 82 130 175 205 195 148
135 113 152 200 195 195 136
145 132 164 210 207 224 118
155 148 161 184 206 226 86
165 151 158 171 190 203 49
175 160 162 164 165 168 16
180 161 161 161 161 161  

COEFFICIENTS OF UTILIZATION (%)

Ceiling Wall RCR 80 70 50 0
70 50 30 10 70 50 30 50 30 10 0
0 85 85 85 85 76 76 76 58 58 58 20
1 78 75 72 70 70 67 65 52 50 49 18
2 72 66 62 58 64 59 56 46 44 42 16
3 66 59 53 49 59 53 48 41 38 36 15
4 61 52 46 42 54 47 42 37 34 31 13
5 56 47 41 36 50 42 37 33 30 27 12
6 51 42 36 31 46 38 33 30 26 24 11
7 48 38 32 28 42 34 29 27 24 21 10
8 44 34 28 24 39 31 26 25 21 19 9
9 41 31 26 22 37 28 23 23 19 17 8
10 39 29 23 19 34 26 21 21 17 15 7

Based on a floor reflectance of 0.2

COEFFICIENTS OF UTILIZATION (%)

Ceiling Wall RCR 80 70 50 0
70 50 30 10 70 50 30 50 30 10 0
0 70 70 70 70 65 65 65 55 55 55 35
1 65 62 60 58 60 58 56 50 49 48 32
2 60 56 52 50 56 52 49 45 43 41 29
3 55 50 46 43 51 47 43 41 38 36 26
4 51 45 41 37 48 42 38 37 34 32 23
5 47 41 36 33 44 38 34 34 31 28 21
6 44 37 32 29 41 35 31 31 28 25 19
7 41 34 29 26 38 32 28 28 25 22 17
8 38 31 26 23 35 29 25 26 23 20 15
9 35 28 24 21 33 27 23 24 21 18 14
10 33 26 21 19 31 25 21 22 19 17 13

Based on a floor reflectance of 0.2

SPECIFICATIONS

Housing:

6063 T5 extruded aluminum.

Optical system:

Optical system constructed of highly specular aluminum to produce a a direct/indirect distribution. Aluminum parabolic louver shall have 16 cells per 4ft to produce 65 degree cutoff in all zones.

Row ends:

Mitered aluminum extrusion sculptured end caps.

Joints & Intersections:

All joints shall be accomplished using TwinLock™ joining system. Optional intersections in "L", "T", or "X" configurations, shall be mitered aluminum extrusion.

Mounting:

All mounts shall have tamper proof infinite vertical adjustment capability. Mounts shall be independently certified up to Zone 4 seismic requirements and able to accept loads up to 1000lb.

Electrical:

All luminaire sections shall be factory pre-wired to section ends, utilizing segregated raceways. Optional quick connect plugs are available.

Ballast:

Electronic: rapid start or dimming.

Approvals:

Certified to UL & CSA standards.

Finish:

Thermosetting polyester, electrostatically applied meeting AAMA 603.8. Available in Ledalite standard white and in a full architectural spectrum of colors. Medium gloss finish as standard.

©1998 Ledalite Architectural Products Inc. 9087A - 198th Street, Langley, B.C., Canada, V1M 3B1

Phone: 604-888-6811 Toll Free Fax: 1-800-665-LEDA (5332) Email: info@ledalite.com  WWW: http://www.ledalite.com 

Note: Specifications subject to change without notice.



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