Because the O60-100 uses a gas-filled sensing element rather than a liquid-filled one

and condensate return tanks

A 3-flash code typically indicates the pressure switch is stuck open

this Antunes gas pressure switch is suitable for demanding environments where precision and durability are non-negotiable

KMC Controls MCP-0203 Actuator Els PW 17895 Because the O60-100 uses aThe KMC Controls MCP 0203 is a heavy duty, 2 inch stroke pneumatic actuator designed for precise linear positioning in commercial HVAC systems. As a 5 10 PSI bare actuator, this unit is engineered for direct replacement or custom integration into damper and valve assemblies requiring a mid range spring scale. The pneumatic damper actuator features a rugged aluminum body and a stainless steel piston rod, ensuring long term structural integrity under