Lightolier 784, 7084 User Manual

Calculite

®

Incandescent Open Downlight 784/7084

Page 1 of 2 6” Aperture T4 (T.H.) Ellipsoidal Reflector

14 1/2"

14 1/2"
15 1/2"

5 3/8"

Molded

Trim Ring

Flush Trim

(Molded trim ring removed)

White or

Polished Flange

Top View

1

2

3

4

5

6

7

8 9

3"

14 5/8"

1 1/8" min.
1 7/8" max.
(Ceiling Runner)

6" Dia..

5 5/8" Dia.

7 1/4" Dia.

1" max.
Ceiling Thickness

Job Information Type:

Job Name:

Cat. No.:

Lamp(s):

Notes:

Lightolier a Genlyte Thomas Company www.lightolier.com

631 Airport Road, Fall River, MA 02720 • [phone] • Fax [phone]
We reserve the right to change details of design, materials and finish.
© 2003 Genlyte Thomas Group LLC (Lightolier Division) • B0703

Features

1. Socket Cup: Heat dissipating die-cast aluminum with mini-can base porce-

lain socket, nickel plated screw shell No.18 SF1 leads to J-Box effectively
acts to cool and properly stabilize lamp temperature. Adjustable socket fea­ture allows same fixture to be operated as wide or narrow distribution
downlight.

2. Mounting Brackets: Adjust vertically from inside of fixture. Durable 16

ga. steel construction. Use with standard 3/4" or 1 1/2" lathing channels (by
others), or Lightolier accessory mounting bars.

3. Retaining Springs: Precision tooled springs secure aperture mounting

frame for quick tool-less installation.

4. Reflector: Specular clear Alzak®upper reflector, retained by spring latches

for inspection and maintenance, top relampable.

5. Junction Box: 14 ga. steel, 4" x 3 1/2" x 2" box.

6. Thermal Protector: Meets NEC and UL requirements. Insulation must be

kept 3" away from fixture sides and wiring compartments and must not be
placed above fixture in a manner which will entrap heat.

7. Aperture Cone: 16 ga. Specular Alzak®aluminum, or optical black multi-

groove. Available with white or polished flange, or with removable white
molded trim ring (field paintable).

8. Multigroove Baffle: One piece seamless aluminum. Sharply detailed con-

centric rings with "sawtooth" profile, optical black finish.

9. Mounting Collar: Die-formed steel painted in baked black enamel.

Other Reflector Finish Options

Comfort Clear Diffuse CCD Specular Black BK
Specular Gold GD Black Multi-Groove MG

(MG is only available with molded trim ring)

Flange Options

White W
Polished Flange P
Flangeless Leave Blank (molded trim ring)

Accessories/Options

18" Mounting Bars 1950 (set of 2)
27" Mounting Bars 1951 (set of 2)
T-Bar Anchor Clips 1956 (set of 4, for 1950 & 1951 bars)
Wood Joist Mtg. Bars 7994 (set of 2)
Sloped Ceiling Adapters 7925 (see SCA specification sheet)
Step Down Transformer 7997 (see 7997 specification sheet)
Chicago Air Plenum LC (add suffix to Frame-in Kit, requires

access from above ceiling)

Electrical

UL Listed for maximum of 8 No. 12, 75˚C through branch circuit
conductors, or 60˚C supply conductors for end of run.

Labels

UL Listed (Suitable for damp locations), I.B.E.W.
Install fixtures with minimum spacing of: 4' between centers of adjacent fix­tures; and 3" between top of fixture and overhead building member; and 2’
between fixture center and building side wall.

Alzak®is a registered trademark of ALCOA.

Ceiling Cutout: 6 1/2" Dia.

Reflector Trims Frame-In Kit Lamp

784CLW Specular Clear finish with white flange 7084 T4 400W-500W Tungsten
784CLP Specular Clear finish with polished flange Halogen Frosted (Mini-can base)
784CL Specular Clear finish with molded trim ring (flangeless)
784 Add suffix for other finishes (see options)

Use quick calculator chart to determine spacing of luminaires for desired level of illumination.
Conversion Factor:

400W T-4: F.C. X 0.8

80% Ceiling; 50% Walls; 20% Floor

Room Surface Reflectances:

500 W T-4 Tungsten Halogen
9500 Lumens Per Lamp

RCR = 10 (Rm. Width - Mtg. Ht. above work plane)

RCR = 5 (Rm. Width - 2 x Mtg. Ht. above work plane)

RCR = 1 (Rm. Width - 10 x Mtg. Ht. above work plane)

CENTER TO CENTER DISTANCE OF FIXTURES IN FEET

INITIAL FOOTCANDLES

21 22 23 2419 20181716141311 1510 129876

60 120 180 5240 300 360 420 480 540

15

30

45

60

75

90

105

120

135

150

Use quick calculator chart to determine spacing of luminaires for desired level of illumination.
Conversion Factor:

400W T-4: F.C. X 0.8

80% Ceiling; 50% Walls; 20% Floor

Room Surface Reflectances:

500 W T-4 Tungsten Halogen
9500 Lumens Per Lamp

RCR = 10 (Rm. Width - Mtg. Ht. above work plane)

RCR = 5 (Rm. Width - 2 x Mtg. Ht. above work plane)

RCR = 1 (Rm. Width - 10 x Mtg. Ht. above work plane)

CENTER TO CENTER DISTANCE OF FIXTURES IN FEET

INITIAL FOOTCANDLES

21 22 23 2419 20181716141311 1510 129876

60 120 180 5240 300 360 420 480 540

15

30

45

60

75

90

105

120

135

150

2000

4000

90

60

30

6000

8000

COEFFICIENTS OF UTILIZATION

%

EFFECTIVE CEILING CAVITY REFLECTANCE

80 70 50 30 10 0

ROOM CAVITY RATIO

20% FLOOR CAVITY REFLECTANCE

50 30 10 50 30 10 50 30 10 50 30 10 50 30 10 0

.90 .88 .86 .88 .86 .85 .85 .84 .82 .82 .81 .80 .79 .78 .78 .76
.84 .81 .79 .83 .80 .78 .80 .78 .76 .78 .76 .75 .76 .74 .73 .72
.80 .76 .74 .79 .76 .73 .77 .74 .72 .75 .73 .71 .73 .71 .70 .69
.76 .72 .69 .75 .71 .69 .73 .70 .68 .72 .69 .67 .70 .68 .66 .65
.72 .68 .65 .71 .67 .65 .70 .66 .64 .68 .66 .63 .67 .65 .63 .62
.69 .65 .62 .68 .64 .62 .67 .64 .61 .66 63 .61 .65 .62 .60 .59
.66 .62 .59 .65 .61 .59 .64 .61 .58 .63 .60 .58 .63 .60 .58 .57
.63 .59 .56 .62 .58 .56 .61 .58 .55 .61 .58 .63 .60 .57 .55 .54
.59 .55 .53 .59 .55 .53 .58 .55 .53 .58 .55 .52 .57 .54 .52 .51
.57 .53 .50 .56 .52 .50 .56 .52 .50 .55 .52 .50 .54 .52 .49 .49

1
2
3
4
5
6
7
8
9

10

% WALL REFLECTANCE

Conversion Factor: For 400W T4 units, multiply C.U.’s by 1.0
ITL, Inc. Report No. 12327C; Date: 12-9-69

COEFFICIENTS OF UTILIZATION

%

EFFECTIVE CEILING CAVITY REFLECTANCE

80 70 50 30 10 0

ROOM CAVITY RATIO

20% FLOOR CAVITY REFLECTANCE

50 30 10 50 30 10 50 30 10 50 30 10 50 30 10 0

.86 .85 .83 .85 .83 .82 .82 .81 .79 .79 .78 .77 .76 .76 .75 .74
.81 .78 .76 .80 .77 .75 .77 .75 .73 .75 .73 .72 .73 .72 .70 .69
.76 .73 .70 .75 .72 .70 .73 .71 .69 .71 .69 .67 .70 .68 .66 .65
.72 .68 .65 .71 .67 .65 .69 .66 .64 .68 .65 .63 .66 .64 .62 .61
.68 .63 .60 .67 .63 .60 .66 .62 .60 .64 .61 .59 .63 .61 .59 .58
.64 .60 .57 .64 .60 .57 .62 .59 .56 .61 .58 .56 .60 .58 .56 .55
.61 .56 .53 .60 .56 .53 .59 .56 .53 .58 .55 .53 .58 .55 .53 .52
.57 .53 .50 .57 .53 .50 .56 .52 .50 .55 .52 .49 .54 .51 .49 .48
.53 .49 .46 .53 .49 .46 .52 .49 .46 .52 .48 .46 .51 .48 .46 .45
.50 .46 .43 .50 46 .43 .49 .45 .43 .49 .45 .43 .48 .45 .43 .42

1
2
3
4
5
6
7
8
9

10

% WALL REFLECTANCE

Conversion Factor: For 400W T4 units, multiply C.U.’s by 1.0
ITL, Inc. Report No. 12328C; Date: 12-9-69

10000

20000

90

60

30

30000

40000

SOCKET IN LOW POSITION (PRE-SET) SOCKET IN HIGH POSITION (RE-SET IN FIELD)

ITL, Inc. report No.12328
Date: 12-9-69

Efficiency: 77.1%

ITL, Inc. report No. 12327
Date: 12-9-69

Efficiency: 79.7%

Spacing Ratio = 1.0

Spacing Ratio = 0.3

DEG CP ZONAL FLUX

0 8160
1 8180 31
3 8200 94
5 8760 167
7 8800 235

9 8560 294
11 8400 352
13 8280 408
15 8220 467
17 7720 495
19 7360 526
25 5940 2750
35 2000 1256
45 300 232
55 24 22
65 6 6
75 5 5
85 4 4

Candlepower Summary

ZONE LUMENS % LAMP % FIX

0-30 5819 61.1 79.1
0-40 7075 74.3 96.2
0-60 7329 77.0 99.7
0-90 7344 77.1 100

DEG CP ZONAL FLUX

0 27660
1 27600 106
3 25200 290
5 19800 378
7 15840 423

9 13200 453
11 11700 490
13 10440 515
15 9480 538
17 8400 538
19 7560 540
25 4440 2056
35 1500 942
45 156 121
55 72 65
65 60 60
75 48 51
85 24 26

Candlepower Summary

ZONE LUMENS % LAMP % FIX

0-30 6327 66.4 82.9
0-40 7269 76.3 95.2
0-60 7455 78.3 97.7
0-90 7592 79.7 100

Calculite

®

Incandescent Open Downlight 784/7084

Page 2 of 2 6” Aperture T4 (T.H.) Ellipsoidal Reflector

Lightolier a Genlyte Thomas Company www.lightolier.com

631 Airport Road, Fall River, MA 02720 • [phone] • Fax [phone]
We reserve the right to change details of design, materials and finish.
© 2003 Genlyte Thomas Group LLC (Lightolier Division) • BO703

Job Information Type: