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  Ledalite Architectural Products Inc.   Cresendo  

Cresendo - Page 25

   

Cresendo

Crescendo 11"

2 T5 - Direct/Indirect
PHOTOMETRY

Variable Optics Setting N:
75% Up 25% Down
Reports# 2100560
Efficiency 85.2%
Peak Candela Value 1000 @ 137.5°
Peak:Zenith Ratio 1.5:1

Variable Optics Setting D:
40% Up 60% Down

Reports# 2100561
Efficiency 65.8%
Peak Candela Value 430 @ 150°
Peak:Zenith Ratio 1.4:1

CANDELA DISTRIBUTION

Vert. Angle

HorizontalAngle

 Zonal Lumens
0 22.5 45 67.5 90
0 613 613 613 613 613  
5 610 612 616 617 619 60
15 576 599 661 715 743 187
25 504 572 699 789 818 312
35 365 495 637 714 725 366
45 130 236 332 419 351 233
55 22 33 48 69 59 52
65 7 11 12 21 25 16
75 2 4 7 8 7 7
85 0 4 4 4 4 4
90 0 3 2 3 3  
95 27 80 14 6 4 59
105 110 309 442 447 412 374
115 225 422 617 743 778 561
125 341 470 747 856 887 601
135 447 541 743 945 998 568
145 538 610 707 832 893 452
155 611 660 717 764 786 329
165 657 683 718 739 747 202
175 682 686 695 700 704 68
180 687 687 687 687 687  

CANDELA DISTRIBUTION

Vert. Angle

HorizontalAngle

 Zonal Lumens
0 22.5 45 67.5 90
0 937 937 937 937 937  
5 942 954 988 998 1019 96
15 906 989 1138 1240 1274 313
25 779 965 1122 1161 1153 484
35 607 834 922 972 977 540
45 216 359 512 634 589 366
55 34 49 101 226 205 122
65 10 13 15 40 39 27
75 2 4 4 7 5 6
85 0 0 0 0 0 1
90 0 0 0 0 0  
95 19 44 23 17 10 35
105 57 134 216 197 165 174
115 110 184 280 364 371 260
125 156 237 615 349 339 258
135 213 280 351 361 381 248
145 251 317 388 384 416 222
155 286 315 353 378 412 162
165 295 304 325 352 365 93
175 314 315 321 322 328 32
180 312 312 312 312 312  

COEFFICIENTS OF UTILIZATION (%)

Ceiling Wall RCR 80 70 50 0
70 50 30 10 70 50 30 50 30 10 0
0 71 71 71 71 66 66 66 57 57 57 37
1 66 64 62 60 62 60 58 52 51 49 34
2 61 57 54 51 57 54 51 47 45 43 30
3 57 51 47 44 53 48 45 42 40 38 27
4 53 46 42 38 49 44 40 39 36 33 24
5 49 42 37 34 45 40 35 35 32 29 26
6 45 38 33 30 42 36 32 32 29 26 20
7 42 35 30 27 39 33 29 29 26 23 18
8 39 32 27 24 37 30 26 27 24 21 16
9 37 29 25 21 34 28 23 25 21 19 15
10 34 27 22 19 32 25 21 23 20 17 14

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 66 66 66 57 57 57 38
1 66 63 61 59 61 59 57 52 50 49 34
2 61 57 53 51 57 53 50 47 45 43 31
3 56 51 47 44 53 48 45 42 40 38 28
4 52 46 42 38 49 43 39 39 36 33 25
5 48 42 37 33 45 39 35 35 32 29 22
6 45 38 33 30 42 36 32 32 29 26 20
7 42 34 30 26 39 33 28 29 26 23 18
8 39 31 27 24 36 30 26 27 23 21 16
9 36 29 24 21 34 27 23 25 21 19 15
10 34 26 22 19 32 25 21 23 19 17 14

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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