Reply to "AC Retrofit Upgrade Project"

zr1panteraForum Sponsor - SACC Restorations

quote:
Are you using the trinary switch to turn on the radiator sucker fans when the A/C compressor is running? Does it activate just one fan, or both?

Or are the fans activated (for A/C) by the A/C thermostat?

Great question. I have my radiator fans controlled in 2 ways. I have a switch that when off allows the Radiator Fans to be controller by the Engine Management computer. When in this mode the Radiator fans are off most of the time. They do turn on when I get into traffic.

When I flip the switch it removes control from the ECM and gives it to the Temp switches in the Radiator. This basically turns on both fans and will also allow the Radiator fans and Electric water pump to run after the car is turned off.

It is important to run the radiator fans in traffic if you have the AC on since the Condenser MUST have airflow or the pressures will rise to high.

Scott

6/22/1012:48 PM

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