ROUND Pools CENTURY Spécifications

I n s t a l l a t i o n—Maintenance —S e rv i c e—Tro u b l e s h o o t i n gCENTURY®POOL & SPA MOTOR MANUAL

When you need information about the motory o u ’ re servicing, you’ll always be able to find itprinted on the motor nameplate. On A.O. Smithmotors the

1 .C AT NO (Catalog Number): This number indicates that the motor is a stock rating, readily available f rom standard inventory as a replacement pool

identify motors not specified by NEMA mounting and shaft standards. 4 .T Y P E : The electrical design of the motor is shown by its type. A.O. Smith u

maximum horsepower (Hp x SF).1 2 .T I M E : Time indicates the duty cycle of the motor. Pool and spa motors are generally rated for continuous duty.1

The number one enemy of a motor isheat. Overheating always re s u l t swhenever there is a lack of clean, continually-circ u l a t i n gair for a moto

C e n t u ry and Neptunemotors have superiorresistance to moisture, but you should avoid placing the motor where it can be splashed. Avoid installing

The task of wiringyour motor is fairlysimple. The wiringdiagrams shown on the following pages are color- c o d e dfor easy reading. The appropriate p

1 6115V Power LineMaximum Distance from Fuse Box to MotorMotor Hp 5 0 ’ 1 0 0 ’ 1 5 0 ’ 2 0 0 ’1⁄31 4 1 4 1 2 1 21⁄21 4 1 2 1 0 1 03⁄41 2 1 2 1 0 81 1

1 7With a few simple tools, you’ll be ready for justabout any kind of basic motor service. To makeyour job easier when installing or servicing apool o

1 8An operating motor is usuallytoo hot to touch by hand. It should be located away from direct sunlight and otherheat sources, such as laundry applia

1Welcome to A.O. Smith’s line of Century®Motors. This pocket manual is designed for one purpose — to make it simple for you toinstall, maintain and tr

1 9B e f o r e you even touch them o t o r, MAKE SURE THEPOWER IS OFF. Always turn the power off at the electrical service entrance fuse or breaker bo

2 0voltage is within the proper range, check for continuity through the pro t e c t o r.5 .Check for overloading from other appliances on the same cir

2 1capacitor using an ohmmeter (see “ Troubleshooting A Capacitor” page 23). 5 .Rotate the motor shaft. If you hear a grinding sound, disassemble the

2 21 .Mounting, motor coupling and brackets. Tighten loose nuts, bolts or set scre w s .2 .If a noticeable drag is present, check the bearings and bea

6 .Check the start switch for broken contact welds or a broken spring.7 .Check the capacitor with an ohmmeter. A bulged capacitor indicates failure on

BEST WAY TO USE A VOLT-AMMETER For Voltage Check1 .Attach leads to the volt-ammeter and select the proper voltage scale. 2 .Test voltage at the motor

bearings because this could damage the motor andcause a re t u rn service call.1.TURN THE POWER OFF2 .Remove the cover from the motor and disconnect t

6 .Remove the bearing(s) from the motor shaft, following these steps as necessary :a )Remove shaft collars used to secure bearings. D o n ’ t reuse a

If your pool or spa motor should need attention while still under warr a n t y, we re q u i re that you have it serviced at a Authorized A.O. Smith S

2 8C e n t u r i o n®Switchless (Easy Connect) . . . . . . . . . . . . . . . . . . 29, 30C e n t u r i o n®Switchless (Mfg. prior 11/91). . . . . . .

2Replacements for every brand. Every now and thenyou probably come across a motor that’s beyond re p a i r.When you do, remember that A.O. Smith manuf

For motors manufactured in/after Nov., 1991 (Serial #BJ11)Dual Vo l t a g e Type CX-1⁄2to 11⁄2H p230/115 Vo l t S w i t c h l e s s2 9CENTURION®/SE/II

3 0For motors manufactured in/after Nov., 1991 (Serial #BJ11)Single Vo l t a g e Type CX-11⁄2- 5 H p230 Vo l t S w i t c h l e s sCENTURION®/SE/II

3 1Dual Vo l t a g e115/230 Vo l tType CX–1⁄2to 11⁄2H pSwitchless For motors manufactured prior to Nov. 1991. (Serial #BJ11)CENTURION®

3 2Single Vo l t a g e230 Vo l tType CX–2, 3 & 4 HpSwitchless For motors manufactured prior to Nov. 1991. (Serial #BJ11)CENTURION®

3 3115/230 Vo l t Type CS–1⁄2to 11⁄2H pWishbone (Old Style)1081

3 4115/230 Vo l t Type CP–2 HpWishbone (Old Style)1081

3 5230 Vo l t Type CP–3 HpWishbone (Old Style)1081

3 6115/230 Vo l t Type CS–1⁄2to 11⁄2H pSingle Arm Switch (Old Style)1081

3 7115/230 Vo l t Type CP–2 HpSingle Arm Switch (Old Style)1081

3 8230 Vo l t Type CX–2 and 3 HpSwitchless (Old Style)E-PLUS®

3C e n t u ry Pump Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Design Feature s

3 9115 Vo l t Type CSM–1⁄2to 3⁄4H pWishbone (Old Style)2-SPEED

4 0230 Vo l t Type CSM–1 and 11⁄2H pWishbone (Old Style)2-SPEED

4 1230 Vo l t Type CPM–2 HpWishbone (Old Style)2-SPEED

4 2( F o rmerly identified asG o u l d - G u a rd )115/230 Vo l tType CS–1⁄2to 1 Hp(Old Style)MICRO-SWITCH MOTOR

4 3( F o r merly identified as G o u l d - G u a rd )230 Vo l tType CX–11⁄2H PSwitchless (Old Style) SWITCHLESS MOTOR

4 4( F o r merly identified as G o u l d - G u a rd )230 Vo l tType CX–2 and 3 HPSwitchless (Old Style) SWITCHLESS MOTOR

4 6Two-Speed Single Vo l t a g e115 Vo l tType CXPM–1⁄2/.06 to 3⁄4/.10 HpSolid-State SwitchCENTURION®

4 7Two-Speed Single Vo l t a g e230 Vo l tType CXPM–1/.12 to 2/.25 HpSolid-State SwitchCENTURION®

4 8Dual Vo l t a g e115/230 Vo l tType CX–3⁄4to 11⁄2H pSwitchless E-PLUS®SWITCHLESS

4 9Single Vo l t a g e230 Vo l tType CX–2 and 3 HpSwitchless E-PLUS®SWITCHLESS

4Motor Troubleshooting Motor Fails To Start (makes no sound). . . . . . . . . . . . . . . . . .1 9Motor Fails To Start (hums, tries to start, blows fu

5 0Two Speed Single Vo l t a g e115 Vo l tType SPM–3⁄4 /.10 HPFLEX 48®FRAME

5 1Two-Speed Single Vo l t a g e115 or 230 Vo l tType CXSM 11⁄2/.18 HP Type CXSM 2.0/.25 HP t h rough 4.5/.50 Spl HPFLEX 48®FRAME

5 2Two-Speed Single Vo l t a g e115 or 230 Vo l tType CSM 1.0/.12 Hp 115 Vo l tType CSM 1.0/.16 Hp 115 Vo l tType CSM 1.5/.18 Hp 230 Vo l tType CSM 2.

5 3Single Vo l t a g e115 Vo l tType SP–1⁄2to 11⁄2H pFLEX 48®

5 4Dual Vo l t a g e230/115 Vo l tType CS–11⁄2to 4 Spl HpFLEX 48®

5 5For Century Pool, Spa or Jetted Tub MotorsTo identify the month and year your Century pool, spa or jetted tub motor was manufactured you need to kn

5 6Single Vo l t a g e 230 Vo l tType CP 11⁄22&3 HpN E P T U N E®2 Compartment Motors

5 7Dual Voltage Type CP230/115 Volt1⁄2-11⁄2HpN E P T U N E®2 Compartment Motors

5 8Dual Vo l t a g e Type CS230/115 Vo l t1⁄3- 11⁄2H pN E P T U N E®2 Compartment Motors

1A.O. Smith531 North Fourth Stre e tTipp City, OH 453719 3 7 - 6 6 7 - 6 8 0 0Fax (937) 667-5873Bulletin 2944 ©A . O . Smith 2000 Litho in USA #2944

5C e n t u r i o n®, C-flange Switchless “1081” Motor• Standard Eff i c i e n c y• E-Plus, High Eff i c i e n c y• 1⁄2– 5 Hp• No Switch, No Govern

6C e n t u r i o n®, Square Flange Switchless “1081” Motor• Standard Eff i c i e n c y• E-Plus, High Eff i c i e n c y• 1⁄2– 5 Hp• No Switch, No G

7Flex-48™ Single-Speed Motors, Thru-Bolt MountSuitable for jetted tubs and above-ground pools and spas.• 1⁄2- 3 Hp• 56-frame conversion base• 3-1⁄2

82 . All Threaded shafts are 303 stainless steel for superiorc o rrosion resistance. Keyed shaft of carbon steel is iron phosphate treated to prevent