Trane WHL1278 Wheel Els PW 17895 This 4-terminal adjustable time delay

This 4-terminal adjustable time delay relay features a broad timing range of 0

Can this flange be used with any Size 4 sleeve

3 microamps (recorded as 130 mV using the converter) is usually required to maintain the main burner

using this genuine York pressure switch ensures the set points exactly match the manufacturer's safety sequence

Trane WHL1278 Wheel Els PW 17895 This 4-terminal adjustable time delayWhen you're dealing with a vibration issue or a complete airflow failure in a Trane air handler, the Trane WHL1278 is the exact OEM replacement blower wheel you need to restore system balance. This is a heavy duty centrifugal fan wheel featuring a 6 1 2" diameter and a 7 5 8" width, specifically engineered for clockwise (CW) rotation. The hub is machined for a standard 1 2 inch bore, ensuring a precise fit on the motor shaft to prevent the "walking"