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Manafacture: A.O. Smith
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File name: motormanual.pdf
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manual abstract
Smith’s line of Century® Motors. This pocket manual is designed for one purpose — to make it simple for you to install, maintain and troubleshoot Century pool and spa motors. Contrary to what you may be thinking just n o w, your last name doesn’t have to be Edison in order to p roperly service the motors shown in the following pages. All you need are a few basic tools and some helpful hints; the kind that appear throughout this booklet. We’ve included all the information we think you’ll need to repair the most common pump motor pro b l e m s e n c o u n t e red out in the field. This easy to read manual contains great illustrations and diagrams for quick re f e rence. Assisting your customers is your job. Helping you do that with minimum delay is our job; that’s why we’ve pre p a red this informative manual. 1 Replacements for every brand. Every now and then you probably come across a motor that’s beyond re p a i r. When you do, remember that A.O. Smith manufacture s replacement pool and spa motors for practically every brand you’ll ever encounter in the field. So save yourself some time and eff o rt and just ask for Century first — at any A.O. Smith distributor or dealer. Century motors are as rugged as any you’ll find, but keep in mind that all motors need service and maintenance at one time or another. Safety first. Remember, before you begin to work on any electrical appliance be sure to TURN OFF THE POWER. The only time you’ll need the power on is when you check motor voltage and amperage. If you overlook this important guideline, someday you could unexpectedly get a real charge out of your work! Always play it safe — double-check to be certain that the power is off b e f o re you start to work on a pool or spa motor. If you have any suggestions or would like more i n f o rmation about a particular subject, please write or call: A.O. Smith 531 North Fourth Stre e t Tipp City, OH 45371 8 0 0 - 5 4 3 - 9 4 5 0 2 TABLE OF CONTENTS TABLE OF CONTENTS C e n t u ry Pump Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Design Feature s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Nameplate Inform a t i o n. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 I n s t a l l a t i o n H e a t. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 3 M o i s t u re. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 4 Power Sourc e. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 4 A l t i t u d e. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 4 M o u n t i n g. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 4 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 5 G ro u n d i n g. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 5 Wi re Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 5 Wi re Selection Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 6 To o l s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 7 M a i n t e n a n c e M o i s t u re. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 7 C o o l i n g. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 8 S e a s o n a l. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 8 C l e a n i n g. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 8 L u b r i c a t i o n. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 8 3 Motor Troubleshooting Motor Fails To Start (makes no sound). . . . . . . . . . . . . . . . . .1 9 Motor Fails To Start (hums, tries to start, blows fuse or trips bre a k e r ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 0 Motor Starts But Shuts Down (overload pro b l e m ). . . . . . . . . . . . . . . . . . . . ...