Psc Fan Motor Wiring Diagram

This test will help you find out which speed a wire is on any psc blower motor. Identify the wire colors and confirm that you have a 4 wire reversible psc permanent split capacitor motor or gearmotor. This is a quick one on the difference between wiring universal condenser fan motors and why brown white is the same wire as white.

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Psc fan motor wiring diagram. How to wire a condensing fan motor for 3 vs. Refer to the motor manufacturer s data on the motor for wiring diagrams on standard frame ex e ex d etc. 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. 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.

Inst maint wiring qxd 5 03 2008 10 02 am page 6. Jesse grandbois submitted this tech tip to help make it simple. 7 product features direct drive multi speed psc blower motor cooling or heat pump applications. I go over the recognized fan motor color code for speeds and spade terminal care.

This one is about psc motor speeds and how they are wired for hvac fan applications. 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. Each component should be set and connected with other parts in specific way.

After a split phase or cap start motor is started a centrifugal switch on the shaft opens disconnecting the start winding or capacitor. 4 wires is a common question by new techs. The evergreen mfr distributor says the following. 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.

Hvac condenser fan motor wiring diagram. This video is part of the heating and cooling series of training videos made to accompany my websites. These diagrams are current at the time of publication check the wiring diagram supplied with the motor. Finally this guide is intended to be used as a general overview of common condenser unit wiring schematics.

The motor then runs using only the run winding. See the simplified circuit diagram on the following page. Bodine stock motors and gearmotors will have black blue black yellow blue yellow motor leads and a green yellow ground lead. 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.