If it be me I would wire up a sail switch. Contact closed when the fan is on (hot air)and independent to the furnace.<BR><BR><BR>And yes, taping into the low voltage thermostat wiring would work ...
The HVACR Wiring Troubleshooting Trainer Program is a module designed to help teach HVACR students how to troubleshoot heating and cooling control systems. It contains an interactive computer program, ...
The White-Rodgers SureSwitch™ relay, model number 49P11-843, replaces the function of a contactor and short-cycle timer with a reliable sealed relay. It increases the reliability of air conditioning ...
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