Page 57 - A O Smith 2012
Basic HTML Version
55
5” Diameter Totally Enclosed Fan/Blower Motors
Unit Heater
Features:
• Continuous Duty, Air Over • PSC and Shaded Pole • 60 Hz • Auto Protector • Sleeve Bearing • 40˚C Ambient • 42 Frame
• 1/2” Dia. Flatted Shaft
PSC
Stock
Dim.
HP
RPM
Speeds Volts
Amps
Number
Rotation
Capacitor
Ref.
Notes
1/8
1075
1
115
2.6
U6520
REV
Included
1
22,89
1/8
1075
1
115
2.6
U6521
REV
Included
1
22,89,294
1⁄6
1075
1
115
2.6
360
CWSE
5MFD-370V
2
7,358
1⁄6
1075
1
115
2.8
380
CWSE
Included
3
294
SHADED POLE
Stock
Dim.
HP
RPM
Speeds Volts
Amps
Number
Rotation
Capacitor
Ref.
Notes
1⁄20
1050
1
115
1.7
978
CWSE
SHADED POLE
4
3,47,359
1⁄15
1050
1
115
3.3
U6430
CWSE
SHADED POLE
5
22,281
1⁄15
1050
1
115
3.3
U6432
CWSE
SHADED POLE
5
286
1⁄15
1050
1
115
3.3
U6433
CWSE
SHADED POLE
7
1/8
1050
1
115
4.5
U6431
CWSE
SHADED POLE
6
22,281
Notes:
3. Special OEM Replacement Motor (see page 94-137)
7. Resilient mounting rings Included
22. 3 Thru Bolts on a 4.42 dia. bolt circle
47. 3/8” flatted shaft
89. 60” leads
281. 36” leads
286. 3.5” shaft height
294. 2.6” shaft height
358. 4 thru bolts on a 4.62 dia. bolt circle
359. 4 studs with spacer and nut on a 3.87 diameter bolt circle
360
U6520
380
U6521
Approximate Dimensions
Ref. BM R C
N T
1 3.84 4.58 7.30 2.92 .79
2 4.00 4.56 7.43 2.96 .71
3 4.00
7.18 2.71
4 4.25
7.25 3.00 1.02
5 3.59 4.33 6.79 2.67
.5
6 4.09 4.83 7.89 3.25 .5
7 3.59
6.72 2.81 .5
978 (Sterling
Radiator)
U6430
U6431
U6432
U6433
N
