ensure the gas pressure is adjusted to the manifold specifications listed on the unit's data plate after installation

As a direct 626435R cross reference

High Thermal Stability: Reinforced Teflon construction prevents seal hardening or deformation during high-load operations

Actuator Compatibility: Specifically designed for seamless integration with V-3802 and V-4000 actuators

Marley Engineered Products 4520-2018-003 Limit Switch ensure the gas pressure isThe Marley Engineered Products 4520 2018 003 Limit Switch is a critical safety component engineered for forced air heating applications where precise thermal protection is non negotiable. This 180 degree F auto reset limit switch serves as a high limit safety cut out, functioning as a normally closed (NC) switch that opens the circuit if the plenum or heating element temperature exceeds the 180F threshold. As a genuine Marley OEM replacement part, it