Page 40 - A O Smith 2012

38 www.aosmithmotors.com
Replaces 1/12, 1/15, 1/20 HP
PSC and Low Efficient
Shaded Pole Designs
3-in-1 ™ 3.3” Diameter PSC Motor
√ Easy-to-Read Connection Diagram
Attached to White Lead Wire
√ Now! Four Studs on Each End
√ 40˚C Ambient
√ Class B Insulation
√ 60/50 HZ
√ UL and CSA Recognized
BM Shaft Dia.
Stock No. HP Volts Amps RPM Speeds DIM & Length Rotation Wt.
9721•$ 1/12,1/15,1/20 115/208-230 1.1/0.5 1550 1 3.60 5/16x3-1/4 Rev. 4.75
Features:
Reversing plug
for easy
rotation change
Extra mounting
nuts for quick
installation
•Ball Bearing $ Energy Efficient
Use of a permanent split capacitor design allows the motor to deliver more power with a
lower amp draw. Cooler operation results in fewer failures. Ball bearings provide smooth,
quiet operation and extended motor life.
$ Less efficient shaded pole motors are often
used in original equipment to cut costs. While
they do allow some small savings in purchase
price, the savings are quickly eaten up in
electric bills at today’s high power costs.
ENERGY
SAVINGS
PSC
DESIGN
Stock No. 9721
heatcraft replacement motors
bohn, chandler, climate control and larkin
50% More Efficient than Shaded Pole Motors
9721 Typical Shaded Pole
60%
50%
40%
30%
20%
10%
0%
Low temp (-40°F)
lubrication
system
Direct Drop-in
Replacement for
walk-in cooler
evaporator fans
3-in-1TM Motor