Honeywell 4074BWJ Limit Stop Assembly L404/604

The Honeywell 4074BWJ Limit Stop Assembly L404/604 is a part in HVAC system gas valve and burner control systems to ensure that the internal components do not move too far, and it provides the appropriate limits of operation. It acts as a restraint in that it sets and limits the movement of the linkage or valve components to ensure proper alignment and over-travel which may influence the control of combustion or the regulation of gas flow. The operation of the system in gas-fired heating equipment assists in maintaining proper control.