With a maximum safe operating pressure of 30 psi and an air capacity of 17

this component is designed for 90% plus AFUE high-efficiency furnaces where moisture removal is a byproduct of the combustion process

or M copper water tube and ACR tubing

blocked return or supply vents

ensuring compliance with rigorous safety standards while minimizing maintenance downtime through its integrated test button and lockable override lever

Modine 5H0730570004 Vent Switch With a maximum safe operatingThe Modine 5H0730570004 Vent Switch is a critical safety component engineered for precise thermal monitoring in high performance heating systems. This 220F manual reset blocked vent switch is designed to detect excessive flue gas temperatures caused by obstructions, ensuring the unit shuts down before hazardous conditions occur. Acting as a direct replacement for 5H73057 4, this OEM part maintains the operational integrity and safety standards