MUA-SVX01A-EN • Direct-Fired Make-up Air
48
Note 17.
FLA based on NEC ratings.
Note 18.
FLA based on NEC ratings.
To calcuate the unit FLA and MCA for:
1.
Units WITHOUT a service receptacle.
FLA = (Motor FLA) + (500 VA transformer amps)
MCA = (Motor FLA x 1.25) + (500 VA transformer amps)
2.
Units WITH a 115 V duplex service receptacle.
FLA = (Motor FLA) + (500 VA transformer amps) + (1000 VA transformer amps)
MCA = (Motor FLA x 1.25) + (500 VA transformer amps) + (1000 VA transformer amps)
3.
Units WITH 2-speed motor.
Motor FLA from Table E1 = High Speed FLA
FLA = (High Speed FLA) + (500 VA transformer amps)
MCA = (High Speed FLA x 1.25) + (500 VA transformer amps)
4.
Procedure is identical for ODP, Energy Efficiency ODP, TEFC and Energy
Efficient TEFC motors.
Electrical Requirements
Table 9.
Motor electrical data, full load Amps (FLA)
HP
Single Phase
Three Phase
115
208
230
208
230
460
1/3
7.2
4.0
3.6
1.4
1.6
0.7
1/2
9.8
5.4
4.9
2.4
2.2
1.1
3/4
13.8
7.6
6.9
3.5
3.2
1.6
1
16.0
8.8
8.0
4.6
4.2
2.1
1 1/2
20.0
11.0
10.0
6.6
6.0
3.0
2
24.0
13.2
12.0
7.5
6.8
3.4
3
34.0
18.7
17.0
10.6
9.6
4.8
5
56.0
30.8
28.0
16.7
15.2
7.6
7 1/2
-
-
-
24.2
22.0
11.0
10
-
55.0
-
30.8
28.0
14.0
15
-
-
-
46.2
42.0
21.0
20
-
-
-
59.4
54.0
27.0
25
-
-
-
74.8
68.0
34.0
30
-
-
-
88.0
80.0
40.0
40
-
-
-
114.0
104.0
52.0
50
-
-
-
143.0
130.0
65.0
60
-
-
-
169.0
154.0
77.0
Table 10. Transformer ampacity (primary)
VA
Primary Voltage
115
208
230
460
500
4.3
2.4
2.2
1.1
1000
8.7
4.8
4.3
2.2
