AO Smith / Century capacitor-start reversible
AO Smith / Century
Same T1..T8 lead convention as split-phase. Start capacitor in series with start winding. Reverse by swapping T5 ↔ T8.
- Type
- capacitor-start
- Voltage
- 115V / 230V
- HP range
- 1/2 – 1.5 HP
- Reversible
- Yes
- Start cap
- Typically 161–193 µF, 125V (check nameplate)
- Reverse
- Swap T5 ↔ T8 to reverse rotation. Confirm dual-voltage jumpering matches nameplate.
Disconnect power at the panel and verify with a meter before wiring.
Wiring combos using this
- TEC II → AO Smith cap-start, 230V single-phaseTEC II receiver drives two contactors (UP / DOWN). Contactors swap T5/T8 to reverse the motor.
- TEC II → AO Smith cap-start, 115V single-phaseSame logic as 230V install, but motor is jumpered for 115V and only one line is hot.
- Reversing drum switch → AO Smith cap-start, 230VClassic drum-switch wiring. The drum switch itself does the L1/L2 + T5/T8 swap internally.