White-Rodgers 5D51-78 Control Els PW 17895 this restrictor can be integrated

this restrictor can be integrated into copper lines when used with appropriate pneumatic compression adapters or sleeves to maintain a secure seal

never leave a unit running with a bypassed limit

the thermocouple or thermopile should be inspected during installation and replaced if it shows signs of carbon buildup or voltage drop

ensuring a perfect fit and reliable operation

Does this unit include a manual push-to-test button

White-Rodgers 5D51-78 Control Els PW 17895 this restrictor can be integratedThe White Rodgers 5D51 78 is a high performance universal fan and limit control engineered for forced warm air heating systems. This unit features a 11 inch element with a helical bimetal sensor, making it the ideal choice for plenum installations with narrow space limitations. As a SPDT control, it effectively regulates fan or blower cycling while providing a critical high limit safety cutoff. The fan switch operates on a close on rise action with an