This R410A TXV valve is essential for maintaining the volumetric efficiency of 3-ton coils in Miller

protecting high-tolerance internal rotors and bearings

verifying the hub offset and blade diameter is critical to maintaining system efficiency

Integrated Thermal Time Relay: Includes a factory-set 60-second delay to accommodate pressure fluctuations during the initial compressor start-up cycle

Multi-Speed Versatility: 3-speed taps (1075/950/810 RPM) allow for customized CFM delivery based on system tonnage

Aaon ASM01891 Pressure Control 318973-401 This R410A TXV valve isThe Aaon ASM01891 Pressure Control is a sophisticated Two Condenser Head Pressure II Module engineered to optimize performance in complex HVACR systems. As a direct replacement for V20660, this authentic OEM ASM01891 part ensures seamless integration and high precision monitoring for units with Two physically separate condenser sections. By utilizing E BUS communication, the ASM01891 head pressure control can monitor up to four individual head