American Standard Home AC D159478P01 Relay diagram


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Route all SoftStart wires into the electrical box, then crimp Connectors onto all SoftStart Home wires as indicated in drawing.

Step 1. Disconnect the Red wire from the “C” terminal of the Run Capacitor and connect it to Blue SoftStart wire.

Tape connection.

Step 2. Connect Black SoftStart wire onto the terminal that the Red wire was on.

Step 3. Connect Yellow SoftStart wire onto an empty HERM (H) terminal next to the Orange Compressor wire.

Step 4. If there is a second Orange wire on the HERM (H) terminal next to the Orange Compressor wire, disconnect it and tape the end.

Step 5. Follow Black/Blue Compressor wire to the Relay on the DFC Board. Disconnect Black/Blue wire and connect it to Brown SoftStart wire. Tape connection.

Step 6. Connect Red SoftStart wire onto the Relay terminal that the Black/Blue Compressor wire was on.

Secure all wires. Tape connections with electrical tape.

Turn Power and A/C Breaker on. Turn A/C to Auto Cool setting and set the thermostat to 55ºF.

Look at SoftStart LED lights. Run LED 1 light should be “on”. Green light means the Compressor is running (there may be a full 3-minute delay

before Green light comes on). IF there is no Green light after 4 minutes, call SoftStart Tech Support for assistance.

After establishing Green light operation, re-install all A/C covers.

Turn A/C on, set near to outdoor temperature and run for 30 minutes.

After 30 minutes, operate A/C normally.