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  Century Spa Pump Motor Wiring Diagram FOR 48 AND 56 Frame A.O. Smith Motors in Waterway and Ultra Jet® Pumps
  Spa Pump Motor Wiring Diagram, Century Motors used in Ultra Jet® Pumps, Jacuzzi Pumps, Waterway Pumps, Aqua-flo replacement pumps
 
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Product Code: CENTURYMOTORWIRING
 


Description
 
Century Spa Pump Motor Wiring Diagram. Century Motors used in Ultra Jet® Pumps, Jacuzzi Pumps, Waterway Pumps, Aqua-flo replacement pumps, and others. Look at the photo of the Century label showing position 2, 3, and 4. This wiring diagram is located on all Century motors. This photo shows that terminal #2 is the COMMON, #3 is HIGH, and #4 is LOW speed.

 The photo of the motor terminal area shows terminals #2, 3, and 4. Following the wiring diagram on the label, #2 is common, which is usually the white wire, the green ground wire always goes to the green ground screw as shown in this photo. Terminal #3 is high speed on present day Century motors, and #4 is the low speed terminal.

 The pump motor power cord is supplied by the maker of the spa control, and they decide whether the black or red wire is high speed or low speed. This is not determined by the motor but by the control. So before you remove the power cord from your old motor, write down what color goes to the high and low speed terminals on the old motor. Then attach the cord to your new motor following what you noted.

 If you make a mistake placing the high and low speed wires, you can swap them. But you must not mis-wire the white common or green ground. Always check voltage. If you are replacing a 230 volt pump/motor, use a new 230v model. Mis-wiring or running a new motor on the wrong voltage will usually permanently damage a motor. Take your time, and do it right.

 Regarding Century dual voltage motors, the voltage can be changed to 115 or 230 volts prior to use. Electrician should first verify voltage of motor being replaced, then move the white and brown wires per the schematic on the motor label, then connect the spa control power cord per the label to ground, and lug #1 & #6. If any doubt, use a meter, and test the output voltage from the control, BEFORE wiring up the motor. Applying the wrong voltage will damage the motor! 
 

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Spa Pump Motor Wiring