Trane SWT0977 Pressure switch Els PW 29614 Engineered for 50/60Hz frequency operation

Engineered for 50/60Hz frequency operation

reducing the risk of catastrophic mechanical failure

Precise Pressure Sensing: Utilizes time-tested bellows technology to maintain a 9 PSI fixed differential for consistent performance across non-corrosive refrigerants

Technicians should use a precision level and ensure all mounting bolts are torqued to spec to prevent the bracket from shifting under load

it is fully compatible with a range of Johnson Controls

Trane SWT0977 Pressure switch Els PW 29614 Engineered for 50/60Hz frequency operationThe Trane SWT0977 Pressure Switch is an essential OEM safety component designed for precise monitoring of combustion blower performance in negative pressure venting systems. This SPNO (Single Pole Normally Open) device, often cross referenced as Honeywell FS4171 1057 or C145526P01, is engineered to ensure the inducer motor is moving sufficient air before allowing the ignition sequence to proceed. Featuring a 1 4 compression connection and a calibrated