Electrical Data. Trane Fan-Powered Low-Height Parallel 234 Pages
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Electrical Data
Parallel Fan-Powered Terminal Units
Table 67. PSC motor units—electric coil kW guidelines – minimum to maximum (VPEF)
Single-Phase Voltage Three-Phase Voltage
Fan Size Stages
02SQ
1
2
03SQ
04SQ
05SQ
06SQ
07SQ
1
2
1
2
1
2
1
2
1
2
120V
0.5-5.0
0.5-5.0
0.5-5.0
0.5-5.0
0.5-4.5
0.5-4.5
0.5-4.5
0.5-4.5
-
-
-
-
208V
0.5-6.0
0.5-6.0
0.5-9.0
0.5-9.0
0.5-8.0
0.5-8.0
0.5-8.0
0.5-8.0
0.5-9.0
0.5-9.0
0.5-8.0
0.5-8.0
240V
0.5-6.0
0.5-6.0
0.5-10.0
0.5-10.0
0.5-10.0
0.5-10.0
0.5-9.0
0.5-9.0
-
-
-
-
277V
0.5-6.0
1.0-6.0
0.5-11.0
1.0-11.0
0.5-12.0
1.0-12.0
0.5-12.0
1.0-12.
0.5-12.0
1.0-12.0
0.5-11.0
1.0-11.0
347V
0.5-6.0
1.0-6.0
0.5-11.0
1.0-11.0
0.5-14.0
1.0-14.0
0.5-15.0
1.0-15.0
0.5-15.0
1.0-15.0
0.5-15.0
1.0-15.0
480V
0.5-6.0
1.0-6.0
0.5-11.0
1.0-11.0
0.5-14.0
1.0-14.0
0.5-18.0
1.0-18.0
0.5-16.0
1.0-16.0
0.5-20.0
1.0-20.0
208V
0.5-6.0
1.0-6.0
0.5-11.0
1.0-11.0
0.5-14.0
1.0-14.0
0.5-14.0
1.0-14.0
0.5-15.0
1.0-15.0
0.5-14.0
1.0-14.0
480V
1.0-6.0
2.0-6.0
1.0-11.0
2.0-11.0
1.0-14.0
2.0-14.0
1.0-18.0
2.0-18.0
1.0-16.0
2.0-16.0
1.0-20.0
2.0-20.0
600V
1.5-6.0
3.0-6.0
1.5-11.0
3.0-11.0
1.5-14.0
3.0-14.0
1.5-18.0
3.0-18.0
1.5-16.0
3.0-16.0
1.5-20.0
3.0-20.0
380V/
50Hz
1.0-6.0
1.5-6.0
1.0-11.0
1.5-11.0
1.0-14.0
1.5-14.0
1.0-18.0
1.5-18.0
1.0-16.0
1.5-16.0
1.0-20.0
1.5-20.0
Table 68. ECM units—electric coil kW guidelines – minimum to maximum (VPEF)
Single-Phase Voltage Three-Phase Voltage
Fan Size Stages
03SQ
04SQ
05SQ
06SQ
1
2
1
2
1
2
1
2
120V
0.5-4.5
0.5-4.5
0.5-4.5
0.5-4.5
0.5-4.0
0.5-4.0
0.5-4.0
0.5-4.0
208V
0.5-8.0
0.5-8.0
0.5-8.0
0.5-8.0
0.5-7.0
0.5-7.0
0.5-7.0
0.5-7.0
240V
0.5-10.0
0.5-10.0
0.5-9.0
0.5-9.0
0.5-8.0
0.5-8.0
0.5-8.0
0.5-8.0
277V
0.5-11.0
1.0-11.0
0.5-12.0
1.0-12.0
0.5-11.0
1.0-11.0
0.5-11.0
1.0-11.0
347V
-
-
-
-
-
-
-
-
480V
0.5-11.0
1.0-11.0
0.5-14.0
1.0-14.0
0.5-18.0
1.0-18.0
0.5-16.0
1.0-16.0
208V
0.5-11.0
1.0-11.0
0.5-14.0
1.0-14.0
0.5-12.0
1.0-12.0
0.5-12.0
1.0-12.0
480V
1.0-11.0
2.0-11.0
1.0-14.0
2.0-14.0
1.0-18.0
2.0-18.0
1.0-16.0
2.0-16.0
600V
-
-
-
-
-
-
-
-
Notes:
1. Coils available with 24-VAC magnetic or mercury contactors, load carrying P.E. switches, and P.E. switch with magnetic or mercury contactors.
2. Available kW increments are by 0.5 from 0.5 kW to 8.0 kW, by 1.0 kW from 9.0 to 18.0 kW, and by 2.0 kW from 18.0 to 20.0 kW.
3. Each stage will be equal in kW output.
4. All heaters contain an auto reset thermal cutout and a manual reset cutout.
5. See section
for formulas used to calculate the current amp draw for the heater elements.
6. Recommended coil temperature rise = 20° to 30°F (-7° to -1°C). Maximum temperature rise = 55°F (12°C).
7. Heaters should not operate at cfms below the nameplate minimum.
380V/
50Hz
-
-
-
-
-
-
-
-
Table 69. Fan electrical performance (PSC)
Fan Size
02SQ
03SQ
04SQ
05SQ
06SQ
07SQ
HP
1/8
1/3
1/3
1/2
1/2
1
115 VAC
1.6
4.3
5.5
6.7
-
-
Maximum Fan Motor Amperage (FLA)
208 VAC
-
-
-
-
4.6
6.6
277 VAC
0.7
1.6
2.0
2.4
3.8
4.7
VAV-PRC012-EN 59
Electrical Data
Table 69. Fan electrical performance (PSC)
Notes:
1. Electric Heat Units - Units with fan sizes 02SQ to 05SQ and a primary voltage of 208/60/1, 208/60/3, or 240/60/1 have 115/60/1 VAC fan motors. Fan sizes 06SQ and 07SQ with the same voltages, have 208/60/1 VAC motors.
2. Electric Heat Units - Units with primary voltage of 277/60/1, 480/60/1 or 480/60/3 use 277 VAC fan motors.
3. Electric Heat Units - Units with primary voltage of 347/60/1 or 575/60/3 use 347 VAC fan motors.
4. With 380/50/3 and 230/50/1, use 230/50 motors.
Table 70. Fan electrical performance (ECM)
Fan Size
03SQ
04SQ
05SQ
06SQ
HP
1/3
1/2
1
1
Maximum Fan Motor Amperage (FLA)
115 VAC 277 VAC
4.5
6.5
10.1
9.5
Notes:
1. Electric heat units—units with primary voltages of 208/60/1, 208/60/3, or 240/60/1 have 115-VAC fan motors.
2. Electric heat units—units with primary voltages of 277/60/1, 480/60/1, or 480/60/3 have 277-VAC fan motors.
3. 347/60/1 and 230/50/1 voltage motors not available with ECMs.
2.4
3.5
5.4
5.1
Table 71. Minimum unit electric heat Cfm guidelines (PSC)
Unit kW
11
12
13
14
15
16
6.5
7
7.5
8
9
10
17
18
20
3.5
4
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
02SQ
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
201
229
257
285
312
340
118
118
118
118
146
174
03SQ
630
-
-
-
-
-
375
400
430
460
515
575
-
-
-
200
230
260
290
315
350
200
200
200
200
200
200
04SQ
-
-
-
630
690
745
810
-
-
375
400
430
460
515
575
315
315
315
315
315
350
315
315
315
315
315
315
Cfm
05SQ
630
690
745
810
860
920
375
400
430
460
515
575
973
1030
-
350
350
350
350
350
350
350
350
350
350
350
350
06SQ
-
-
-
701
758
814
870
926
982
533
533
533
533
589
645
533
533
533
533
533
533
533
533
533
533
533
533
07SQ
730
779
827
876
924
972
585
585
585
585
633
682
1021
1069
1166
585
585
585
585
585
585
585
585
585
585
585
585
60 VAV-PRC012-EN
Electrical Data
Table 72. Minimum unit electric heat L/s guidelines (PSC)
Unit kW
11
12
13
14
15
16
6.5
7
7.5
8
9
10
17
18
20
3.5
4
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
02SQ
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
95
108
121
134
147
160
56
56
56
56
69
82
03SQ
-
-
-
-
-
-
297
-
-
177
189
203
217
243
271
94
109
123
137
149
165
94
94
94
94
94
94
04SQ
297
326
352
382
-
-
177
189
203
217
243
271
-
-
-
149
149
149
149
149
165
149
149
149
149
149
149
L/s
05SQ
297
326
352
382
406
434
177
189
203
217
243
271
459
486
-
165
165
165
165
165
165
165
165
165
165
165
165
Table 73. Minimum unit electric heat Cfm guidelines (ECM)
Unit kW
3.5
4
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
6.5
7
7.5
8
9
10
03SQ
200
230
260
290
315
350
200
200
200
200
200
200
375
400
430
460
515
575
04SQ
315
315
315
315
315
350
315
315
315
315
315
315
375
400
430
460
515
575
Cfm
05SQ
350
350
350
350
350
350
350
350
350
350
350
350
375
400
430
460
515
575
06SQ
331
358
384
410
437
463
252
252
252
252
278
305
-
-
-
252
252
252
252
252
252
252
252
252
252
252
252
VAV-PRC012-EN
06SQ
560
560
560
560
560
560
560
560
560
560
560
560
560
560
560
560
604
649
07SQ
345
367
390
413
436
459
276
276
276
276
299
322
482
505
550
276
276
276
276
276
276
276
276
276
276
276
276
61
Electrical Data
Table 73. Minimum unit electric heat Cfm guidelines (ECM) (continued)
Cfm
Unit kW
11
12
13
14
15
16
17
18
03SQ
-
-
-
630
-
-
-
-
04SQ
630
690
745
810
-
-
-
-
Table 74. Minimum unit electric heat L/s guidelines (ECM)
Unit kW
11
12
13
14
15
16
17
18
6.5
7
7.5
8
9
10
3.5
4
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
03SQ
-
-
-
297
-
-
-
-
177
189
203
217
243
271
94
109
123
137
149
165
94
94
94
94
94
94
04SQ
297
326
352
382
-
-
-
-
177
189
203
217
243
271
149
149
149
149
149
165
149
149
149
149
149
149
L/s
05SQ
297
326
352
382
406
434
459
486
177
189
203
217
243
271
165
165
165
165
165
165
165
165
165
165
165
165
05SQ
630
690
745
810
860
920
973
1030
06SQ
327
348
369
390
411
432
-
-
264
264
264
264
285
306
264
264
264
264
264
264
264
264
264
264
264
264
06SQ
693
738
782
826
871
915
-
-
62 VAV-PRC012-EN
Electrical Data
Series Fan-Powered Terminal Units
Table 75. VSEF—electric coil kW guidelines – minimum to maximum (PSC motor units)
Fan
Size Stages 120V 208V
Single-Phase Voltage
240V 277V 347V
02SQ
03SQ
04SQ
05SQ
1
2
1
2
1
2
1
2
0.5-5.0
0.5-5.0
0.5-5.0
0.5-5.0
0.5-4.5
0.5-4.5
0.5-4.5
0.5-4.5
0.5-7.0
0.5-7.0
0.5-9.0
0.5-9.0
0.5-8.0
0.5-8.0
0.5-8.0
0.5-8.0
06SQ
07SQ
1
2
1
2
-
-
-
-
0.5-9.0
0.5-9.0
0.5-8.0
0.5-8.0
(a) 4.5, 5.5, 6.5, 9, 11, 13 kW not available
(b) 12 kW not available
(c) 10, 13 kW not available
(d) 16, 17 kW not available
(e) 18 kW not available
0.5-7.0
0.5-7.0
0.5-10.0
0.5-10.0
0.5-10.0
0.5-10.0
0.5-9.0
0.5-9.0
-
-
-
-
0.5-7.0
1.0-7.0
0.5-12.0
1.0-12.0
0.5-12.0
1.0-12.0
0.5-12.0
1.0-12.0
0.5-12.0
1.0-12.0
0.5-11.0
1.0-11.0
0.5-7.0
1.0-7.0
0.5-14.0
1.0-14.0
0.5-16.0
1.0-16.0
0.5-15.0
1.0-15.0
0.5-15.0
1.0-15.0
0.5-15.0
1.0-15.0
480V
1.0-7.0
1.5-7.0
1.0-13.0
(b)
0.5-18.0
1.0-18.0
0.5-20.0
1.0-20.0
0.5-22.0
1.0-22.0
0.5-20.0
1.0-20.0
208V
0.5-7.0
1.0-7.0
0.5-14.0
1.0-14.0
0.5-15.0
1.0-15.0
0.5-14.0
1.0-14.0
0.5-15.0
1.0-15.0
0.5-14.0
1.0-14.0
Three-Phase Voltage
480V 600V 380V/50Hz
1.0-7.0
3.5-7.0
(a)
1.0-12.0
1.0-18.0
2.5-18.0
1.0-20.0
2.5-20.0
1.0-22.0
2.0-22.0
1.0-24.0
2.0-24.0
1.5-7.0
-
1.5-13.0
-
1.5-18.0
(d)
4.0-15.0
1.5-22.0
4.0-20.0
(e)
1.5-22.0
3.0-22.0
1.5-24.0
3.0-24.0
1.5-7.0
2.5-7.0
1.0-14
(c)
1.0-18
1.5-18
1.0-22.0
1.5-22.0
1.0-22
1.5-22
-
-
Table 76. VSEF—electric coil kW guidelines – minimum to maximum (ECM units)
Single-Phase Voltage Three-Phase Voltage
Fan
Size Stages
03SQ
04SQ
1
2
1
2
05SQ
06SQ
1
2
1
2
120V 208V
0.5-4.5
0.5-4.5
0.5-4.5
0.5-4.5
0.5-8.0
0.5-8.0
0.5-8.0
0.5-8.0
0.5-4.0
0.5-4.0
0.5-4.0
0.5-4.0
0.5-7.0
0.5-7.0
0.5-7.0
0.5-7.0
240V
0.5-10.0
0.5-10.0
0.5-9.0
0.5-9.0
0.5-8.0
0.5-8.0
0.5-8.0
0.5-8.0
277V
0.5-12.0
1.0-12.0
0.5-12.0
1.0-12.0
0.5-11.0
1.0-11.0
0.5-11.0
1.0-11.0
-
-
-
-
347V
-
-
-
-
480V
1.0-13.0
(a)
1.5-13.0
0.5-18.0
1.0-18.0
0.5-18.0
1.0-18.0
0.5-22.0
1.0-22.0
208V
0.5-14.0
1.0-14.0
0.5-14.0
1.0-14.0
0.5-12.0
1.0-12.0
0.5-12.0
1.0-12.0
480V
1.0-12.0
3.5-12.0
(b)
1.0-18.0
(c)
2.5-15.0
1.0-22.0
2.5-20.0
1.0-22.0
2.0-22.0
600V
-
-
-
-
-
-
-
-
Notes:
1. Coils available with electric, 24 VAC magnetic or contactors, load carrying P.E. switches, and P.E. switches with magnetic or mercury contactors.
2. Available kW increments are by 0.5 from 0.5 to 8.0 kW, by 1.0 kW from 9.0 to 17.0 kW, and by 2.0 kW from 18.0 to 24.0 kW.
3. Each stage will be equal in kW output.
4. All heaters contain an auto reset thermal cutout and a manual reset cutout.
5. See section
for formulas used to calculate the current amp draw for the heater elements.
6. Recommended coil temperature rise = 20°-30°F (-7° to -1°C). Maximum temperature rise = 55°F (12°C).
7. Heaters should not operate at cfms below the nameplate minimum.
(a) 12 kW not available
(b) 4.5, 5,5, 6.5, 9, 11 kW not available
(c) 16, 17 kW not available
380V/
50Hz
-
-
-
-
-
-
-
-
Table 77. Fan electrical performance (PSC)
Fan Size
02SQ
03SQ
04SQ
05SQ
06SQ
HP
1/8
1/3
1/3
1/2
1/2
115 VAC
1.6
4.3
5.5
6.7
-
Maximum Fan Motor Amperage (FLA)
208 VAC
-
-
-
-
4.6
277 VAC
0.7
1.6
2.0
2.4
3.8
VAV-PRC012-EN 63
Electrical Data
Table 77. Fan electrical performance (PSC)
07SQ 1 6.6
4.7
Notes:
1. Electric Heat Units—Units with fan sizes 02SQ to 05SQ and a primary voltage of 208/60/1, 208/60/3 or 0/60/1 use 115/60/1 VAC fan motors. Fan sizes 06SQ and 07SQ in these same voltages, have 208/60/1 VAC fan motors.
2. Electric Heat Units—Units with primary voltage of 277/60/1, 480/60/1 or 480/60/3 use 277 VAC fan motors.
3. Electric Heat Units—Units with primary voltage of 347/60/1 or 575/60/3 use 347 VAC fan motors.
4. With 380/50/3 and 230/50/1 use 230/50 motors.
Table 78. Fan electrical performance (ECM)
Fan Size
03SQ
04SQ
05SQ
06SQ
HP
1/3
½
1
1
Maximum Fan Motor Amperage (FLA)
120 VAC
4.5
6.5
10.1
9.5
277 VAC
2.4
3.5
5.4
5.1
Notes:
1. Acceptable selections are any point within the shaded area. The ECM will operate on a vertical performance line using the solid state speed controller provided.
2. The ECM motor provides constant volume with changing static pressure conditions. Therefore, the fan curves for the ECM are different compared to fan curves with PSC motors.
3. By using an ECM motor, less fan sizes are used because of the wider turn-down ratios.
Table 79. Minimum unit electric
Unit kW
11
12
13
14
15
16
6.5
7
7.5
8
9
10
17
18
20
22
24
3.5
4
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
02SQ
-
-
-
-
-
-
372
395
-
-
-
-
-
-
-
-
-
236
259
282
304
327
350
191
191
191
191
191
214
64
03SQ
630
690
745
810
-
-
375
400
430
460
515
575
-
-
-
-
-
260
260
260
290
315
350
260
260
260
260
260
260
Heat Cfm Guidelines (PSC)
04SQ 05SQ
630
690
745
810
860
920
375
400
430
460
515
575
315
315
315
315
315
350
315
315
315
315
315
315
973
1030
-
-
-
630
690
745
810
860
920
400
400
430
460
515
575
400
400
400
400
400
400
400
400
400
400
400
400
973
1030
1150
1260
-
06SQ
713
792
872
951
1031
1110
700
700
700
700
700
700
700
700
700
700
700
700
700
700
700
700
700
700
1190
1269
1428
1587
-
07SQ
850
902
954
1006
1057
1109
850
850
850
850
850
850
850
850
850
850
850
850
850
850
850
850
850
850
1161
1213
1317
1420
1524
VAV-PRC012-EN
Electrical Data
Table 80. Minimum unit electric
Unit kW
11
12
13
14
15
16
6.5
7
7.5
8
9
10
17
18
20
22
24
3.5
4
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
02SQ
-
-
-
-
-
-
-
-
-
176
186
-
-
-
-
-
-
112
122
133
144
154
165
90
90
90
90
90
101
03SQ
297
326
352
382
-
-
177
189
203
217
243
271
-
-
-
-
-
123
123
123
137
149
165
123
123
123
123
123
123
Heat L/s Guidelines (PSC)
04SQ 05SQ
297
326
352
382
406
434
177
189
203
217
243
271
459
486
-
-
-
149
149
149
149
149
165
149
149
149
149
149
149
297
326
352
382
406
434
189
189
203
217
243
271
459
486
543
595
-
189
189
189
189
189
189
189
189
189
189
189
189
06SQ
336
374
411
449
486
524
330
330
330
330
330
330
562
599
674
749
-
330
330
330
330
330
330
330
330
330
330
330
330
07SQ
401
426
450
475
499
524
401
401
401
401
401
401
548
572
621
670
719
401
401
401
401
401
401
401
401
401
401
401
401
VAV-PRC012-EN 65
Electrical Data
Table 81. Minimum unit electric
Unit kW
11
12
13
14
15
16
17
18
20
22
6.5
7
7.5
8
9
10
3.5
4
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
03SQ
630
690
745
810
-
-
-
-
-
-
375
400
430
460
515
575
260
260
260
290
315
350
260
260
260
260
260
260
Heat Cfm Guidelines (ECM)
04SQ 05SQ
630
690
745
810
860
920
375
400
430
460
515
575
973
1030
-
-
315
315
315
315
315
350
315
315
315
315
315
315
630
690
745
810
860
920
400
400
430
460
515
575
973
1030
1150
1260
400
400
400
400
400
400
400
400
400
400
400
400
06SQ
1006
1038
1069
1101
1133
1164
943
943
943
943
943
975
1196
1228
1291
1354
943
943
943
943
943
943
943
943
943
943
943
943
66 VAV-PRC012-EN
Table 82. Minimum unit electric
Unit kW
11
12
13
14
15
16
17
18
20
22
6.5
7
7.5
8
9
10
3.5
4
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
03SQ
297
326
352
382
-
-
-
-
-
-
177
189
203
217
243
271
123
123
123
137
149
165
123
123
123
123
123
123
Heat L/s Guidelines (ECM)
04SQ 05SQ
297
326
352
382
406
434
177
189
203
217
243
271
459
486
-
-
149
149
149
149
149
165
149
149
149
149
149
149
297
326
352
382
406
434
189
189
203
217
243
271
459
486
543
595
189
189
189
189
189
189
189
189
189
189
189
189
Electrical Data
06SQ
475
490
505
520
535
549
445
445
445
445
445
460
564
579
609
639
445
445
445
445
445
445
445
445
445
445
445
445
VAV-PRC012-EN 67
Electrical Data
Low Height Parallel Fan-Powered Terminal Units
Table 83. LPEF—electric coil kW guidelines – minimum to maximum (PSC motor units)
Single-Phase Voltage Three-Phase Voltage
Fan Size Stages
08SQ
09SQ
10SQ
1
2
1
2
1
2
120V
0.5-4.5
0.5-4.5
0.5-4.5
0.5-4.5
0.5-4.0
0.5-4.0
208V
0.5-7.0
0.5-7.0
0.5-8.0
0.5-8.0
0.5-8.0
0.5-8.0
240V
0.5-7.0
0.5-7.0
0.5-10.0
0.5-10.0
0.5-9.0
0.5-9.0
277V
0.5-7.0
1.0-7.0
0.5-12.0
1.0-12.0
0.5-12.0
1.0-12.0
347V
0.5-7.0
1.0-7.0
0.5-14.0
1.0-14.0
0.5-14.0
1.0-14.0
480V
0.5-7.0
1.0-7.0
0.5-14.0
1.0-14.0
0.5-14.0
1.0-14.0
208V
0.5-7.0
1.0-7.0
0.5-14.0
1.0-14.0
1.0-13.0
1.0-13.0
480V
1.0-7.0
2.0-7.0
1.0-14.0
2.0-14.0
1.0-14.0
2.0-14.0
600V
1.5-7.0
3.0-7.0
1.5-14.0
3.0-14.0
1.5-12.0
3.0-12.0
380V/
50Hz
-
-
-
-
-
-
Table 84. LPEF–electric coil kW guidelines – minimum to maximum (ECM units)
Fan Size Stages
08SQ
09SQ
1
2
1
2
120V
0.5-5.0
0.5-5.0
0.5-4.5
0.5-4.5
208V
0.5-7.0
0.5-7.0
0.5-8.0
0.5-8.0
Single-Phase Voltage
240V
0.5-7.0
0.5-7.0
0.5-9.0
0.5-9.0
277V
0.5-7.0
1.0-7.0
0.5-12.0
1.0-12.0
347V
-
-
-
-
480V
0.5-7.0
1.0-7.0
0.5-14.0
1.0-14.0
208V
0.5-7.0
1.0-7.0
0.5-14.0
1.0-14.0
Three-Phase Voltage
480V
1.0-7.0
2.0-7.0
1.0-14.0
2.0-14.0
600V
Notes:
1. Coils available with 24 VAC magnetic or mercury contactors, load carrying P.E. switches, and P.E. switch with magnetic or mercury contractors.
2. Available kW increments are by 0.5 from 0.5 kW to 8.0 kW and by 1.0 kW from 9.0 to 14.0 kW.
3. Each stage will be equal in kW output.
4. All heaters contain an auto thermal cutout and a manual reset cutout.
5. The current amp draw for the heater elements is calculated by the formula below.
-
-
-
-
380V/
50Hz
-
-
-
-
Table 85. Fan electrical performance (PSC)
Fan Size
08SQ
09SQ
10SQ*
HP
1/3
1/3
2 x 1/8
115 VAC
5.5
5.5
9.4
Maximum Fan Motor Amperage (FLA)
277 VAC
2.5
2.5
3.5
347 VAC
Notes:
1. Electric Heat Units - Units with Primary Voltage of 208/60/1, 208/60/3 or 240/60/1 use 115 VAC fan motors.
2. Electric Heat Units - Units with Primary Voltage of 277/60/1, 480/60/1 or 480/60/3 use 277 VAC fan motors.
3. Electric Heat Units - Units with Primary Voltage of 347/60/1 or 575/60/3 use 347 VAC fan motors.
4. Values are for standard, single-speed, permanent split capacitor type motors. Consult factory for non-standard motor performance.
5. Motor amps for 10SQ are total amps for two motors.
1.8
1.8
3.0
Table 86. Fan electrical performance (ECM)
Fan Size
08SQ
09SQ
HP
1/2
1/2
Maximum Fan Motor Amperage (FLA)
115 VAC 277 VAC
2.0
6.7
1.1
3.6
68 VAV-PRC012-EN
Electrical Data
Table 87. Minimum unit electric heat guidelines
Unit kW
6.5
7
7.5
8
9
10
11
12
13
14
3.5
4
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
08SQ
378
407
-
-
-
-
-
-
-
-
202
232
261
290
319
349
173
173
173
173
173
173
Cfm (PSC
)
09SQ
440
440
468
496
552
608
664
720
776
832
440
440
440
440
440
440
440
440
440
440
440
440
10SQ
720
720
720
720
720
720
720
720
720
-
720
720
720
720
720
720
720
720
720
720
720
720
Unit kW
6.5
7
7.5
8
9
10
11
12
13
14
3.5
4
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
Table 88. Minimum unit electric heat Cfm guidelines (ECM)
08SQ
Cfm (ECM)
09SQ
409
440
-
-
-
-
-
-
-
-
220
251
283
314
346
377
188
188
188
188
188
188
490
490
514
539
588
637
685
734
783
832
490
490
490
490
490
490
490
490
490
490
490
490
Unit kW
6.5
7
7.5
8
9
10
11
12
13
14
3.5
4
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
Unit kW
6.5
7
7.5
8
9
10
11
12
13
14
3.5
4
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
08SQ
178
192
-
-
-
-
-
-
-
-
95
109
123
137
151
164
82
82
82
82
82
82
L/s (PSC
)
09SQ
208
208
221
234
261
287
313
340
366
393
208
208
208
208
208
208
208
208
208
208
208
208
10SQ
340
340
340
340
340
340
340
340
340
-
340
340
340
340
340
340
340
340
340
340
340
340
08SQ
193
208
-
-
-
-
-
-
-
-
104
118
133
148
163
178
89
89
89
89
89
89
L/s (ECM)
09SQ
231
231
243
254
277
300
323
347
370
393
231
231
231
231
231
231
231
231
231
231
231
231
VAV-PRC012-EN 69
Electrical Data
Low Height Series Fan-Powered Terminal Units
Table 89. LSEF-electric coil kW guidelines-minimum to maximum (PSC motor units)
Fan Size Stages
08SQ
1
2
09SQ
10SQ
1
2
1
2
120V 208V
0.5-4.5
0.5-4.5
0.5-6.0
0.5-6.0
0.5-4.5
0.5-4.5
0.5-4.0
0.5-4.0
0.5-8.0
0.5-8.0
0.5-7.5
0.5-7.5
Single-Phase Voltage
240V
-
-
0.5-10.0
0.5-10.0
0.5-8.0
0.5-8.0
277V
0.5-6.0
0.5-6.0
0.5-12.0
1.0-12.0
0.5-11.0
1.0-11.0
347V
0.5-6.0
1.0-6.0
0.5-12.0
1.0-12.0
0.5-15.0
1.0-15.0
480V
0.5-6.0
1.0-6.0
0.5-12.0
1.0-12.0
0.5-18.0
1.0-18.0
Three-Phase Voltage
208V
0.5-6.0
1.0-6.0
0.5-12.0
1.0-12.0
0.5-13.0
1.0-13.0
480V
1.0-6.0
3.0-6.0
1.0-12.0
3.0-12.0
1.0-18.0
2.0-18.0
600V
1.5-6.0
5.0-5.0
1.5-12.0
4.5, 5, 9, 10
1.5-18.0
3.0-18.0
380V/
50Hz
-
-
-
-
-
-
Table 90. LSEF-electric coil kW guidelines-minimum to maximum (ECM units)
Single-Phase Voltage Three-Phase Voltage
Fan Size Stages
08SQ
1
2
09SQ
10SQ
1
2
1
2
120V
0.5-5.0
0.5-5.0
0.5-4.5
0.5-4.5
0.5-4.5
0.5-4.5
208V
0.5-6.0
0.5-6.0
0.5-8.0
0.5-8.0
0.5-8.0
0.5-8.0
240V
0.5-6.0
0.5-6.0
0.5-10.0
0.5-10.0
0.5-9.0
0.5-9.0
277V
0.5-6.0
1.0-6.0
0.5-12.0
1.0-12.0
0.5-12.0
1.0-12.0
347V
-
-
-
-
-
-
480V
0.5-6.0
1.0-6.0
0.5-12.0
1.0-12.0
0.5-18.0
1.0-18.0
208V
0.5-6.0
1.0-6.0
0.5-12.0
1.0-12.0
0.5-14.0
1.0-14.0
480V
1.0-6.0
3.0-6.0
1.0-12.0
3.0-12.0
1.0-18.0
2.0-18.0
Notes:
1. Coils available with 24 VAC magnetic or mercury contactors, load carrying P.E. switches, and P.E. switch with magnetic or mercury contactors.
2. Available kW increments are by 0.5 from 0.5 kW to 8.0 kW and by 1.0 kW from 9.0 to 18.0 kW.
3. Each stage will be equal in kW output.
4. All heaters contain an auto thermal cutout and a manual reset cutout.
5. The current amp draw for the heater elements is calculated by the formula below.
600V
-
-
-
-
-
-
380V/
50Hz
-
-
-
-
-
-
Table 91. Fan electrical performance (PSC)
Fan Size
08SQ
09SQ
10SQ*
HP 115 VAC
1/3 5.5
1/3
2 x 1/3
5.5
11.0
Maximum Fan Motor Amperage (FLA)
277 VAC
2.5
2.5
5.0
347 VAC
1.8
Notes:
1. Electric Heat Units - Units with Primary Voltage of 208/60/1, 208/60/3 or 240/60/1 use 115 VAC fan motors.
2. Electric Heat Units - Units with Primary Voltage of 277/60/1, 480/60/1 or 480/60/3 use 277 VAC fan motors.
3. Electric Heat Units - Units with Primary Voltage of 347/60/1 or 575/60/3 use 347 VAC fan motors.
4. Values are for standard, single-speed, permanent split capacitor type motors. Consult factory for non-standard motor performance.
5. Motor amps for 10SQ are total amps for two motors.
1.8
3.5
Table 92. Fan electrical performance (ECM)
Fan Size
08SQ
09SQ
10SQ
HP 115 VAC
1/2 1.3
1/2
2 x 1/2
Maximum Fan Motor Amperage (FLA)
5.0
7.5
277 VAC
.7
2.7
4.0
70 VAV-PRC012-EN
Table 93. Minimum unit electric heat guidelines
(PSC)
Unit kW
11
12
13
14
15
16
17
18
6.5
7
7.5
8
9
10
3.5
4
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
08SQ
-
-
-
-
-
-
-
-
-
-
-
-
-
-
276
293
309
325
341
357
228
228
228
228
244
260
Cfm
09SQ
635
687
-
-
-
-
-
-
403
429
455
480
532
584
377
377
377
377
377
377
377
377
377
377
377
377
10SQ
655
708
762
815
869
923
976
1030
440
440
467
494
547
601
440
440
440
440
440
440
440
440
440
440
440
440
Electrical Data
Unit kW
11
12
13
14
15
16
17
18
6.5
7
7.5
8
9
10
3.5
4
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
08SQ
-
-
-
-
-
-
-
-
-
-
-
-
-
-
130
138
146
153
161
168
108
108
108
108
115
123
10SQ
309
334
360
385
410
435
461
486
208
208
220
233
258
284
208
208
208
208
208
208
208
208
208
208
208
208
L/s
09SQ
300
324
-
-
-
-
-
-
190
202
215
227
251
275
178
178
178
178
178
178
178
178
178
178
178
178
VAV-PRC012-EN 71
Electrical Data
Table 94. Minimum unit electric heat guidelines (ECM)
Unit kW
11
12
13
14
15
16
17
18
6.5
7
7.5
8
9
10
3.5
4
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
08SQ
-
-
-
-
-
-
-
-
-
-
-
-
-
-
221
253
284
315
346
377
128
128
128
128
159
190
Cfm
09SQ
635
687
-
-
-
-
-
-
403
429
455
480
532
584
377
377
377
377
377
377
377
377
377
377
377
377
10SQ
680
730
779
829
879
929
979
1029
480
480
505
530
580
630
480
480
480
480
480
480
480
480
480
480
480
480
08SQ
-
-
-
-
-
-
-
-
-
-
-
-
-
-
104
119
134
149
163
178
60
60
60
60
75
90
Unit kW
11
12
13
14
15
16
17
18
6.5
7
7.5
8
9
10
3.5
4
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
L/s
09SQ
300
324
-
-
-
-
-
-
190
202
215
227
251
276
178
178
178
178
178
178
178
178
178
178
178
178
10SQ
321
345
368
391
415
438
462
486
227
227
238
250
274
297
227
227
227
227
227
227
227
227
227
227
227
227
72 VAV-PRC012-EN
Electrical Data
Formulas
Fan-Powered Parallel
Minimum Circuit Ampacity (MCA) Equation
MCA = 1.25 x (
motor amps + heater amps)
Motor amps is the sum of all motor current draws if more than one is used in the unit.
Maximum Overcurrent Protection (MOP) Equation
MOP = (2.25 x motor1 amps) + motor2 amps + heater amps motor1 amps = current draw of largest motor motor2 amps = sum of current of all other motors used in unit
General Sizing Rules:
• If MOP = 15, then fuse size = 15
• If MOP = 19, then fuse size = 15 with one exception. If heater amps x 1.25 > 15, then fuse size = 20.
• If MOP is equal to or less than MCA, then choose next fuse size greater than MCA.
• Control fusing not applicable.
• Standard Fuse Sizes: 15, 20, 25, 30, 35, 40, 45, 50, and 60.
Example:
A modelVPEF, electric reheat unit size 10-05SQ has 480/3 phase, 12 kW electric reheat with 2 stages and 277-Volt motor.
For MOP of fan-powered unit:
12 kW-480/3 heater:12x1000/480x1.73=14.45 amps
MCA = (2.4 + 14.45) x 1.25 = 21.06, MOP = (2.25 x 2.4) + 14.45 = 19.9.
Since MOP is less than or equal to MCA, then MOP = 25.
For total current draw of unit:
12kW-480/3 heater:12x1000/480x1.73=14.45
Two heat outputs (2 stages) @0.5 amps max each=1.00
Motor amps: 277 V (Fan size 0517) =2.4
Amps Max: 18.35
Useful Formulas: kW
=
ATD
=
|
ATD
= kW
amps
=
PrimaryVoltage
amps
= kW = 1214 x L/s x ATD
VAV-PRC012-EN 73
Electrical Data
Fan-Powered Series
Minimum Circuit Ampacity (MCA) Equation
• MCA = 1.25 x (Smotor amps + heater amps)
Here motor amps is the sum of all motor current draws if more than one is used in the unit.
Maximum Overcurrent Protection (MOP) Equation
• MOP = (2.25 x motor 1amps) + motor2 amps + heater amps motor1 amps = current draw of largest motor motor2 amps = sum of current draw of all other motors used in units
General Sizing Rules:
• If MOP = 15, then fuse size = 15
• If MOP = 19, then fuse size = 15 with one exception. If heater amps x 1.25 > 15, then fuse size = 20.
• If MOP is less than/equal to MCA, then choose next fuse size greater than MCA.
• Control fusing not applicable.
• Standard Fuse Sizes: 15, 20, 25, 30, 35, 40, 45, 50, and 60.
Example:
A model VSEF, electric reheat unit size 10-0517 has 480/3 phase, 12 kW electric reheat with 2 stages and 277-Volt motor.
For MOP of fan-powered unit:
12 kW - 480/3 heater:12x1000/480x1.73=14.45 amps.
MCA=(2.4 + 14.45) x 1.25 = 21.06, MOP = (2.25 x 2.4) + 14.45 = 19.9.
Since MOP is less than/equal to MCA, then MOP = 25.
For total current draw of unit:
12 kW—480/3 heater:12x1000/480x1.73=14.45
Two heat outputs (2 stages)@0.5 amps max each=1.00
Motor amps: 277 V (Fan size 0517)=2.4
Total amps max: 18.35
Used Formulas:
amps
=
PrimaryVoltage kW
=
ATD
=
ATD
= kW
amps
= kW=1214 x L/s x ATD
74 VAV-PRC012-EN
Electrical Data
Low Height Parallel Fan-Powered
Minimum Circuit Ampacity (MCA) = (motor amps + heater amps) x 1.25
Maximum Overcurrent Protection (MOP) = (2.25 x motor amps) + heater amps
General Sizing Rules:
• If MOP = 15, then fuse size = 15
• If MOP = 19, then fuse size = 15 with one exception. If heater amps x 1.25 > 15, then fuse size = 20.
• If MOP £ MCA, then choose next fuse size greater than MCA.
• Control fusing not applicable.
• Standard Fuse Sizes: 15, 20, 25, 30, 35, 40, 45, 50, and 60.
Useful Formulas:
kW
=
ATD
=
ATD
= kW
kW
=
amps
=
PrimaryVoltage
amps
=
Low-Height Series Fan-Powered
Minimum Circuit Ampacity (MCA) = (motor amps + heater amps) x 1.25
Maximum Overcurrent Protection (MOP) = (2.25 x motor amps) + heater amps
General Sizing Rules:
• If MOP = 15, then fuse size = 15
• If MOP = 19, then fuse size = 15 with one exception. If heater amps x 1.25 > 15, then fuse size = 20.
• If MOP is less than/equal to MCA, then choose next fuse size greater than MCA.
• Control fusing not applicable.
• Standard Fuse Sizes: 15, 20, 25, 30, 35, 40, 45, 50, and 60.
Useful Formulas
kW
=
3amps
=
PrimaryVoltage 3
ATD
= kW
=
1amps
=
ATD
= kW
1214 Lls
VAV-PRC012-EN 75
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