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

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

Always verify your blower wheel requirements before installation

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

protecting high-tolerance internal rotors and bearings

Aaon ASM01891 Pressure Control 318973-401 Multi-Speed Versatility: 3-speed taps (1075/950/810The 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