34
RT-SVX063E-EN
Table 6.
Electrical service sizing data — Supply fan motors — 20 to 75 tons
200 V
230 V
460 V
575 V
FLA (ea.)
FLA (ea.)
FLA (ea.)
FLA (ea.)
Motor Horsepower
Supply Fan Motor (4 pole) with VFD Bypass
1.5
5.6
5.6
3.5
3.7
3
14.1
14.1
4.7
3.7
5
21.0
14.1
8.3
5.3
7.5
41.0
21.0
11.2
8.7
10
41.0
41.0
15.1
11.9
15
41.0
41.0
22.1
16.5
20
56.1
52.7
29.9
22.5
25
70.1
65.0
32.2
27.0
Motor Horsepower
Supply Fan Motor (6 pole) with VFD Bypass
1.5
6.1
5.6
3.5
3.7
3
14.1
14.1
4.7
3.7
5
21.0
14.8
8.3
5.6
7.5
41.0
22.0
11.2
11.9
10
41.0
41.0
22.1
16.5
15
52.7
41.0
22.1
16.5
20
65.0
54.0
29.9
27.0
Motor Horsepower
Supply Fan Motor (4 pole) with out VFD Bypass
1.5
5.6
5.6
3.5
3.7
3
14.1
14.1
4.7
3.7
5
21.0
14.1
8.3
5.0
7.5
41.0
21.0
11.2
8.7
10
41.0
41.0
15.1
11.9
15
52.7
41.0
22.1
16.5
20
52.7
52.7
29.9
22.5
25
65.0
65.0
35.2
27.0
Motor Horsepower
Supply Fan Motor (6 pole) with out VFD Bypass
1.5
5.6
5.6
3.5
3.7
3
14.1
14.1
4.7
3.7
5
21.0
14.1
8.3
5.0
7.5
41.0
21.0
11.2
11.9
10
41.0
41.0
22.1
16.5
15
52.7
41.0
22.1
16.5
20
52.7
52.7
29.9
27.0
Notes:
1
.
FLA is for individual motors by HP, not total unit supply and relief fan HP
2
.
Supply fans selected under 1,600 RPM will have 6-pole motors
Table 7.
Electrical service sizing data — Relief fan motors — 20 to 75 tons
Tonnage
HP (Total)
No. of Motors
200 V
230 V
460 V
575 V
FLA (ea.)
FLA (ea.)
FLA (ea.)
FLA (ea.)
20
6
1
12.8
12.8
6.3
N/A
20
8
(a)
1
19.5
19.5
9.0
N/A
25
6
1
12.8
12.8
6.3
N/A
25
8
(b)
1
18.2
18.2
9.3
N/A
30
8
(b)
1
18.2
18.2
9.3
N/A
30
12
2
12.8
12.8
6.3
N/A
40
8
(b)
1
18.2
18.2
9.3
N/A
40
15
(a)
2
19.5
19.5
9.0
N/A
50
12
2
12.8
12.8
6.3
N/A
50
16
(b)
2
18.2
18.2
9.3
N/A
55
12
2
12.8
12.8
6.3
N/A
55
16
(b)
2
18.2
18.2
9.3
N/A
60
16
(b)
2
18.2
18.2
9.3
N/A
60
23
(a)
3
19.5
19.5
9.0
N/A
70
16
(b)
2
18.2
18.2
9.3
N/A
70
23
(a)
3
19.5
19.5
9.0
N/A
75
16
(b)
2
18.2
18.2
9.3
N/A
75
23
(a)
3
19.5
19.5
9.0
N/A
(a)
23" fan diameter
(b)
25.5" fan diameter
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