3 Speed Motor; Ring Dia. 2-1/2"; Overall Length 22-7/16"; 54" Long Leads. Fan Coils, Air Conditioners, Blowers, Shaded Pole, PSC Retrofit, Trane, Carrier, Amana, GE, Fan Coil & PTAC Units. Century's new Comfort Select~FC is a brushless DC high efficiency motor that runs off 120 volt single phase input. The motor is controlled by integrated electronics providing advanced motor protection with the same performance characteristics as a shaded pole or PSC (permanent split capacitor) motor. The Comfort Select~FC is designed as a direct replacement or retrofit product for shaded pole and PSC motors and may be used in fan coil and PTAC* applications as an energy saving retrofit.