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Re: 2008 Camry with an unusual A/C problem
Posted to HVAC Forum on 5/2/2024

The amplifier is a simple module that would be programed with a code that instructs it what to do.

Something like this.

If the operator requests AC on pin 1 and the temperature of pin 4 and pin 3 is above 35F ground the relay. If the temperature from pin ... Login to read more.