Page 50 - SUPCO Appliance 2013

33
Features
• Built in temperature activated disc opens and closes the motor
overload protector’s contacts.
• Excessive heat generated by the compressor, motor or crankcase
heater will open the contacts to help protect the equipment from
serious damage or burnout.
• UL and CSA Approved
Applications
• Used in heat pumps, air conditioners, motors, refrigerators, freezers, pumps,
water coolers, and heating applications.
OVKIT
Overload Kit
• Contains one of each
overload (10 total)
Horsepower at 120 Volts
SUPCO LOCKED ROTOR GEM MARS
NO. AMPS 1/20 1/1 1/10 1/8 1/6 1/5 1/4 1/3 1/2 3/4 NO. NO.
OV32 12.0 13.5 • • MP359 35004
OV34 14.0 15.5 • • • • • MP358 35007
OV36 16.0 18.0 • • • • MP357 35009
OV38 18.5 22.0 • • • • • MP354 35010
OV40 22.5 26.5 • • • MP360 35011
OV42 27.0 31.0 • • • MP355 35012
OV44 31.5 35.5 • • MP361 35017
OV46 36.0 40.0 • • • MP352 35018
OV48 40.5 44.5 • • • MP351 35019
OV50 45.0 49.0 • • MP362 35020
Horsepower at 240 Volts
SUPCO LOCKED ROTOR GEM MARS
NO. AMPS 1/10 1/8 1/6 1/5 1/4 1/4+ 1/3 1/3+ 1/2 1/2+ 3/4 1 NO. NO.
OV32 12.0 13.5 • • • • • • • MP359 35004
OV34 14.0 15.5 • • • • • • • MP358 35007
OV36 16.0 18.0 • • • • • MP357 35009
OV38 18.5 22.0 • • • • • • MP354 35010
OV40 22.5 26.5 • • • • • • • MP360 35011
OV42 27.0 31.0 • • • • • • • MP355 35012
OV44 31.5 35.5 • • • MP361 35017
OV46 36.0 40.0 • • • MP352 35018
OV48 40.5 44.5 • • • MP351 35019
OV50 45.0 49.0 • MP362 35020
This application guide is offered as a guide only when no other information is available.
The application will vary with compressor manufacturer’s systems and condenser applications (static, fan, and water cooled, etc.)
Other factors include refrigerant, motor type, and efficiency.
®
1. Disconnect source of electrical supply.
2. By-pass defective overload with jumper.
3. Remove wire from start terminal of compressor.
4. Place hook-on ampmeter on wire going to common or run terminal of compressor.
5. Connect plug to source of current and read ampmeter.
6. If unit does not have a start capacitor, add 1/2 of ampere reading to obtain the locked rotor amps.
Example: If ampere reading is 21, add 1/2 (+ 7) = 28 locked rotor amps.
7. If unit has a start capacitor, add 10% of ampere reading. Example: If ampere reading is 21, add 10% (+2.1) = 23.1 locked rotor amps.
8. Replace defective overload and replace wire removed from start terminal.
NOTE: The above procedure should only be used when the motor winding is at ambient temperature.
Locked Rotor Amperage Measurement.
To determine the locked rotor amperage use the following procedure:
Application Note:
OV Series Universal Replacement Motor Protectors
Relays, Overloads & Hard Starts