
Energy Efcient Motors
for Refrigeration Applications

Breakthrough
Motor Design
• Advanced ECM Design
• Rain Shield
• Cast Iron
• 13” Leads
• Lyall Plug
• UL approved E128044
• Exceeds 60% Efficiency
• Low Temperature Oil
Stock No. Watts Volts Amps RPM ROT OSE
9207 6,9,12 115 .2/.3 1550 CW
Annual KWH Savings For a Typical 9W Motor
Motor Shaded Pole iMotor Annual
Output Watts In Watts In KWH Saved
9 Watts 51.8 17.7 298.7
Savings for the
Offers Huge
Energy
Refrigeration
Market
Direct Drop-in
Replacement for
Supermarket Case
Evaporator Fans
Energy Savings ECM Design
Comparison of 9-Watt Motors @ 1550 RPM
70%
60%
50%
40%
30%
20%
EFFICIENCY PERCENTAGE
10%
0%
iMotor Shaded PolePSC
The iMotor refrigeration motor uses less wattage to
achieve the same airflow as a shaded pole motor,
so it produces less heat. Fewer BTU’s in the system
means less work and wear for the compressor for
even greater savings.
Stock No. 9721
Replaces 1/12, 1/15, 1/20
PSC and Low Efficient
Shaded Pole Designs
• Easy-to-Read Connection Diagram
Attached to White Lead Wire
• Four Studs on Each End
• 40˚C Ambient
• Class B Insulation
• UL and CSA Recognized
• Reversing plug for easy
rotation change
• Low temp (-40˚F)
Lubrication system
• Extra mounting nuts for
quick installation
• Ball Bearings
Stock No. HP Volts Amps RPM Speeds Frame SF HZ Rotation Wt.
9721 1/12 115/208-230 1.1/0.5 1550 1 3.3” 1.0 60/50 Rev. 4.75
Heatcraft replacement for Bohn, Chandler, Climate Control and Larkin.
Direct Drop-in Replacement for
Walk-In Cooler Evaporator Fans
50% More Efficient than Shaded Pole Motors
60%
50%
40%
30%
20%
10%
0%
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 todays high
power costs.
9721 Typical Shaded Pole

JuggerNaut
™
Class F Insulation - 70˚C (158˚F) Max Ambient
Stock No. HP Volts Amps RPM Speeds Frame Size Rotation Type Bearings “C” Dim. Shaft Wt. (lbs)
H1050 1.0 208-230/460 4.0-4.4/2.2 1140 1 56H Reversible Three Phase Ball 16.63 5/8” x 6.0” 29
H1051 1.5 208-230/460 5.8-5.8/2.9 1140 1 56H Reversible Three Phase Ball 17.63 5/8” x 6.0” 38
H1052 2.0 208-230/460 7.0-7.4/3.7 1140 1 56H Reversible Three Phase Ball 18.63 5/8” x 6.0” 45
H1053 1.0 208-230/460 5.0-5.2/2.6 850 1 56H Reversible Three Phase Ball 18.63 5/8” x 6.0” 45
• Inverter duty
• Removable 56H rigid base
• VCM
™
- Voltage Change Module
• 70°C (158˚F) max ambient
• Class F moisture resistant insulation
Features:
• Automatic overload protector
• Large water slinger
• Double sealed ball bearings
• Positioning lugs for easy
belly-band mounting
• Energy-efficient three phase design
• Conductive bearing grease
for inverter applications
• Quick connect design
• Shaft up mounting
Note: It is the responsibility of the installer to properly adjust the drive to the motor for the specific application. The correct volts/Hz settings are application specific and
unique to each motor. Failure to perform proper set up can lead to substandard performance and /or premature failure of the system components.
When you need
a motor that can
handle the severe
demands that
inverters create,
look no further than
JuggerNaut
™
Many retailers are now retrofitting inverters to their existing A/C and refrigeration equipment to save energy, only to
discover that the OEM motors do not hold up to the strain that inverters place on them.
–JuggerNaut Inverter Duty motors are the solution!
• UL and CSA recognized Class F insulation for 70°C (158˚F) max
ambient conditions provides longer motor life.
• Inverter Duty Rated to be Corona Free with conductive bearing
grease for reliable use with today’s inverters.
• Voltage Change Module (VCM)
™
– Our own quick connect
voltage change device makes voltage changes quick and easy.
• Easy to remove 56H rigid base provides maximum mounting
versatility and reduces inventory.
• JuggerNaut condenser fan motors are available in 1 HP, 1.5 HP
and 2 HP at 1140 RPM and 1 HP at 850 RPM. All are three
phase and 208-230/460 volt.

Tel: (800) 672-6495
Fax: (800) 468-2062
Bulletin #6031 4/08
Your Authorized Distributor is:
Our new Green Choice™ brand of motors
are designed to address today’s
environmental concerns. A Green
Choice motor saves energy by
reducing the amount of electricity
needed, indirectly reducing the amount
of carbon dioxide emitted into the air.
Carbon dioxide is thought to contribute to global warming,
and coal-fired power plants emit a majority of carbon dioxide.
Green Choice motors can also reduce noise and contribute to
a more environmentally friendly equipment system. A Green
Choice motor can save money and makes it your most
eco-friendly motor choice.
Distribution Services
Electrical Products Company
531 N. Fourth Street
Tipp City, OH 45371
A DIVISION OF A. O. SMITH CORPORATION
www.aosmithmotors.com
Copyright © 2008 A. O. Smith Corporation