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

this switch can be actuated by positive

ensuring reliable on/off control in zoned commercial or residential HVAC systems

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

identical replacement for the 90-67 potential relay

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