Psc Fan Motor Wiring Diagram

This is a quick one on the difference between wiring universal condenser fan motors and why brown white is the same wire as white. Jesse grandbois submitted this tech tip to help make it simple. A psc motor uses a capacitor a device that can store and release electrical charge in one of the windings to increase the current lag between the two.

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Identify the wire colors and confirm that you have a 4 wire reversible psc permanent split capacitor motor or gearmotor.

Psc fan motor wiring diagram. Each component should be set and connected with other parts in specific way. The motor then runs using only the run winding. I know a homeowner who runs the fan on his ruud ubhc 17j11nfd air handler 2 5 ton heat pump continuously in the summer to help keep the temperature a bit more consistent between the upstairs and downstairs so he figures swapping the oem psc fan motor for an ecm motor such as the evergreen might pay for itself. These diagrams are current at the time of publication check the wiring diagram supplied with the motor.

Inst maint wiring qxd 5 03 2008 10 02 am page 6. Finally this guide is intended to be used as a general overview of common condenser unit wiring schematics. After a split phase or cap start motor is started a centrifugal switch on the shaft opens disconnecting the start winding or capacitor. I go over the recognized fan motor color code for speeds and spade terminal care.

See the simplified circuit diagram on the following page. Refer to the motor manufacturer s data on the motor for wiring diagrams on standard frame ex e ex d etc. This test will help you find out which speed a wire is on any psc blower motor. Otherwise the structure won t work as it should be.

7 product features direct drive multi speed psc blower motor cooling or heat pump applications. The evergreen mfr distributor says the following. Hvac condenser fan motor wiring diagram. Bodine stock motors and gearmotors will have black blue black yellow blue yellow motor leads and a green yellow ground lead.

4 wires is a common question by new techs. For a visual picture of typical wiring configurations reference the following guide. Some condenser fan motors wire to a circuit board while others use proprietary plugs for their connectors. This video is part of the heating and cooling series of training videos made to accompany my websites.

Blower motor wiring diagram blower motor resistor wiring diagram blower motor wire diagram hvac blower motor wiring diagram every electric arrangement consists of various distinct parts. How to wire a condensing fan motor for 3 vs. Upflow downflow and horizontal blower section usable as an electric furnace control board includes a fan delay in the cooling mode and is isolated from the air stream. This one is about psc motor speeds and how they are wired for hvac fan applications.