Dinosaur Electronics Universal TDR Time Delay Relay for 12V Furnaces
Dinosaur Electronics Universal TDR Time Delay Relay for 12V Furnaces
This is a replacement time delay relay for use in older furnaces that use a standard 12VDC ignitor board. the TDR has a 4 second delay before applying power to the fan motor, and a 2 minute cool down period at the end of the heat cycle before removing power from the fan motor. This unit measures 1-1/2" x 1-1/2".