Carrier 39T, Инструкция по установке, запуску и обслуживанию

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Table 22 — Electric Heater Data, Horizontal Heaters Used in EHS1 (cont)
39T
UNIT SIZE
HEATER
AREA
(Sq Ft)
NO. OF
CONTROL
STEPS
HEATER
COIL
kW
TEMP
RISE
(°F)
MIN COIL
FACE VEL
(Fpm)
POWER SUPPLY, 3-PHASE CIRCUITS
208 Volts 240 Volts
Total FLA No. Sub-Ckts MWG Fuse Total FLA No. Sub-Ckts MWG Fuse
32 24.0
3 39 32 160 109 3 1/0 150 94 2 1 125
6
79 40 260 220 5 300 300 191 4 250 250
119 51 310 331 7 (2)250 500 287 6 500 400
133 50 350 370 8 (2)300 500 320 7 (2)250 400
8
166 60 370 461 10 (2)500 600 400 9 (2)350 500
199 62 425 553 12 (3)350 700 479 10 (2)500 600
239 67 475 664 14 (3)500 1000 575 12 (3)400 800
279 71 525 775 17 (4)400 1000 672 14 (3)500 1000
39 28.8
3 66 35 210 184 4 4/0 250 159 4 3/0 200
6
99 42 260 275 6 500 350 239 5 350 300
133 48 310 370 8 (2)300 500 320 7 (2)250 400
159 50 350 442 10 (2)400 600 383 8 (2)350 500
8
199 60 370 553 12 (3)350 700 479 10 (2)500 600
232 61 420 644 14 (3)500 1000 559 12 (3)350 700
299 68 490 830 18 (4)500 1200 720 15 (4)350 1000
332 70 525 922 20 (4)500 1200 799 17 (4)400 1000
49 38.1
3 79 32 210 220 5 300 300 191 4 250 250
6
99 38 220 275 6 500 350 239 5 350 300
133 43 260 370 8 (2)300 500 320 7 (2)250 400
159 43 310 442 10 (2)400 600 383 8 (2)350 500
199 48 350 553 12 (3)350 700 479 10 (2)500 600
8
299 60 420 830 18 (4)500 1200 720 15 (4)350 1000
359 65 460 997 21 (5)400 1600 864 18 (4)500 1200
432 70 515 1200 25 (6)400 1600 1040 22 (5)500 1600
61 48.8
3 79 32 160 220 5 300 300 191 4 250 250
6
119 37 210 331 7 (2)250 500 287 6 500 400
133 40 220 370 8 (2)300 500 320 7 (2)250 400
159 40 260 442 10 (2)400 600 383 8 (2)350 500
199 42 310 553 12 (3)350 700 479 10 (2)500 600
239 37 420 664 14 (3)500 1000 575 12 (3)400 800
8
359 61 425 1108 24 (5)500 1600 960 20 (5)400 1200
498 50 650 1383 29 (6)500 N/A 1199 25 (6)400 1600
74 59.1
3 79 27 160 220 5 300 300 191 4 250 250
6
119 31 210 331 7 (2)250 500 287 6 500 400
133 33 220 370 8 (2)300 500 320 7 (2)250 400
159 37 230 442 10 (2)400 600 383 8 (2)350 500
199 41 260 553 12 (3)350 700 479 10 (2)500 600
8
299 46 350 830 18 (4)500 1200 720 15 (4)350 1000
399 58 370 1108 24 (5)500 1600 960 20 (5)400 1200
465 60 420 1291 27 (6)500 N/A 1119 24 (5)500 1600
92 73.0
6
133 36 160 370 8 (2)300 500 320 7 (2)250 400
166 33 220 461 10 (2)500 600 400 9 (2)350 500
199 38 230 553 12 (3)350 700 479 10 (2)500 600
266 45 260 739 16 (4)350 1000 640 11 (3)500 800
8
332 47 310 922 20 (4)500 1200 799 17 (4)400 1000
518 54 420 1438 N/A N/A N/A 1247 26 (6)500 1600
565 57 430 1569 N/A N/A N/A 1360 29 (6)500 N/A
678 64 460 1882 N/A N/A N/A 1632 N/A N/A N/A
LEGEND
ARI — Air Conditioning & Refrigeration Institute
FLA — Total Full Load Amps of Electric Heating Coils
Fuse — External Fuse Size Required Per Circuit
kW — Kilowatt Rating
MWG — Minimum Wire Gage
VEL
— Velocity
NOTES:
1. Subcircuits are internal heater circuits of 48 A or less ampacity.
2. Minimum wire gage is based on 75 C copper conductors; 3 conductors per
circuit.
IMPORTANT: To avoid damage from overheating, coils must not be op-
erated at less than minimum airflow (cfm).
Minimum Cfm = Coil Face Area x Minimum Coil Face Velocity
3. Electric heat performance is not within the scope of ARI Standard 430
certification.
4. All ratings shown are at 60 Hz. To obtain kW ratings at 50 Hz when voltage
does not change, multiply the 60 Hz rating by 0.833. For example, a 6-step
heater in a size 32 unit has a rating of 119 kW at 60 Hz. To obtain the
50 Hz rating:
119 x 0.833 = 99 kW at 50 Hz
If the voltage also varies from that shown in the table, use the formula in the
following example to arrive at the correct rating at the new voltage before
multiplying by 0.833:
Given: 2
V
2
( )
kW
2
= kW
1 V
1
Where kW
1
= 60 Hz rating
kW
2
= 50 Hz rating
V
1
= 60 Hz voltage
V
2
= 50 Hz voltage
Example: 2
450
kW
2
= 119
( )
480
kW
2
= 105
105 x 0.833 = 87 kW at 450 v, 50 Hz
208-, 240- and 480-V 208- and 600-V
Heaters. Heaters.
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