5
ELECTRICAL CONNECTION
WARNING!!!! DO NOT USE EXTENSION CORDS (VOIDS WARRANTY)
Ground:
The electrical outlet must be provided with an efficient ground, and the voltage and the frequency
of the electrical line matches those indicated on the data plate.
If unsure about the efficiency of the ground, have your electrical circuit checked by a qualified technician.
• Carefully remove carton or crate from unit. Remove all loose packing materials, making sure that no
small parts or accessories are lost. Inspect the unit for concealed damage before discarding packing
materials.
• It is the responsibility of the installer to comply with all local codes.
• Unlock brakes on casters and roll unit to area where it is to be used.
• Electrical installation should be made by a licensed electrician.
• Check unit nameplate for electrical requirements. Make sure that the thermostats are all set to the
“OFF” position. Connect electrical power cord and plug to a properly sized power source of the correct
voltage.
• Supplied voltage must correspond with the voltage specified on the serial plate.
WARNING!: Improper voltage supplied to the unit will void the warranty. Voltage variation can
cause erratic operation and serious damage to the electrical system.
• All external wiring should conform to the national, state and local electrical code requirements.
• Equipment must be properly grounded to prevent electrical shock.
• Equipment must have a separate ground.
WARNING!: For servicing, allow 30” clearance on the right side of the unit. Allow 4” from wall
on the left side and rear of the unit for airflow.
Model Volts Phase Wire** Amps Watts Hertz
OP-3
120/208 1 3 42 8,270 60
120/240 1 3 38 8,270 60
120/208 3 4 21 8,270 60
120/240 3 4 20 8,270 60
OP-3-H
120/208 1 3 38 7,770 60
120/240 1 3 34 7,770 60
120/208 3 4 17 7,770 60
120/240 3 4 16 7,770 60
OP-3-SH
120/208 1 3 52 10,770 60
120/240 1 3 46 10,770 60
120/208 3 4 26 10,770 60
120/240 3 4 23 10,770 60
OP-3 ELECTRICAL SPECIFICATIONS*
*Units are shipped without cord and plug. Designed to be hard-wired.
**Number of wires does not include ground.
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