Carrier Home A/C 343578-101 Rev B Wiring Diagram

Instructions

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TURN OFF ALL POWER AND BREAKERS BEFORE STARTING INSTALLATION.

TURN OFF ALL POWER AND BREAKERS BEFORE STARTING INSTALLATION.

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

Step 1. Follow Yellow Compressor wire from Compressor to Contactor Block terminal 23. Disconnect Yellow wire from terminal 23, cut off Eye Ring, crimp Female connector onto end of wire, then connect it to Blue SoftStart wire. Tape connection.

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

Step 3. Connect Yellow SoftStart wire onto a terminal next to Blue Compressor wire on HERM terminal of Run Capacitor.

Step 4. If there is a second Blue wire from a Start Relay next to the Blue Compressor wire on the HERM terminal, disconnect it. Tape end and drop it.

Step 5. Follow Black Compressor wire to the Contactor Block terminal 21. Disconnect Black Compressor wire, cut off Eye Ring, crimp Female connector onto end of wire, and connect it to Brown SoftStart wire. Tape connection.

Step 6. Connect Red SoftStart wire onto the Contactor Block terminal that the Black 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.