What is Service Factor?
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Service Factor(SF) is a multiplier that when multiplied by the horsepower of the motor indicates the total permissible horsepower loading that may be carried when the motor is operating at rated voltage and frequency. The most important thing to remember when replacing a motor is that the replacement motor's horsepower times its service factor must be equal to or greater than the original motor's horsepower times its service factor. The Service Factor rating can be found on the motor label. See Step 4 of our How to Read a Pool Motor Label guide.
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My current motor SP3220Z2MER, motor specs are 2.5 HP, SF 1.10, Frame 56Y, Volt 230, RPM 3450/1725, will this one compatible with my current pump?
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Hi Sang Le, Yes, this motor is the exact replacement to the motor you have.
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I am buying the sp3220Z2me pump what other parts should be ordered at the same time?
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If I start it in high speed (controlled by a T106M timer) it works great and I can switch to low speed and it also works great, but it just won't start in low sped.
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Sounds like the start capacitor, see image we added. Start capacitor is at the back of the motor, not the one on the top of the motor.
my pump is sp3220z2me which is what the picture showson the tag butin the ad description the pump number has an r on the end sp3220z2mer
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Hello Ken. The Hayward part numbers SP3220Z2MER and SP3220z2ME represent the exact same motor, the Century 2.5HP, 2 Speed, Standard Efficient Max Rate Motor.
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