I have a American Products Ultra Flow pump model number 38448400 serial number PF-1-07-A00 with a Magnetek Century Centurion part # 8-177475-20 1HP motor, 56Y frame, 3450 rpm, 230/115 volts (wired 230), 8.0/16.0 amps (easy so far). But, I do not know the service factor rating (the label on the motor has dashes!). So, I don't know if I need a 1HP Full Rated or Up Rated motor.
Also, I'd like to install a two speed pump so that I can run on low speed most of the time (less noise and electricity).
After contacting a few internet dealers, one suggested an AO Smith SQS1102R (but this is a 48Y frame that is supposed to be interchangeable with the 56Y frame, full rated motor SF=1.65). Another dealer mentioned the AO Smith B982 (56Y frame, full rated motor SF=1.65). Both are supposed to be 3450 rpms.
Are the frame mismatches something to worry about? Also, everyone is assuming (based on their recommended replacements) that my original motor's service factor was 1.65. Can anyone verify?
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