Modine 5H0730570004 Vent Switch The DCL (like this 023Z5003)

The DCL (like this 023Z5003) contains activated alumina for acid removal

as this gasket is vital for preventing CO leakage and improper pressure switch tripping

This "opens on rise" action prevents heat exchanger damage and ensures safe operating conditions by shutting down the gas valve

A trip is typically caused by "flame rollout

Modine 5H0730570004 Vent Switch The DCL (like this 023Z5003)The 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