
Aaon ASM01891 Pressure Control
The 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 pressure transducers, automatically regulating condenser fans or water valves based on the highest recorded readings. This specialized HVAC pressure controller is essential for maintaining liquid line pressure during low ambient conditions, preventing system stalking and compressor strain. Whether used as a stand-alone pressure module or integrated with a VCM-X controller, it provides refrigeration head pressure stability in both air-cooled and water-cooled applications. Its ability to detect heat pump mode and force signals to 100% makes it a versatile solution for year-round climate control demanding reliable pressure regulation.
Key Benefits
- Dual Section Control: Efficiently manages two separate condenser sections by monitoring multiple pressure transducers simultaneously.
- Legacy Compatibility: Serves as the official V20660 replacement, restoring original equipment functionality without extensive retrofitting.
- Enhanced Efficiency: Minimizes expansion valve "hunting" and prevents flash gas by maintaining stable refrigerant head pressure.
- Smart Mode Detection: Automatically adjusts to 100% output during heat pump heating cycles to protect the refrigeration circuit.
- Flexible Installation: Supports E-BUS communication for advanced HVAC automation or operates as a reliable stand-alone module via dip switch settings.
Common Questions
Is the Aaon ASM01891 compatible with my older V20660 module?
Yes, the ASM01891 is the designated direct replacement for the discontinued V20660, designed to match its technical footprint and functional requirements.
Can this control module be used in low ambient cooling applications?
Absolutely. The ASM01891 head pressure controller is specifically designed to maintain proper head pressure during cold outdoor temperatures, ensuring the TXV receives a stable liquid refrigerant supply.
How does this module handle heat pump units?
The module includes logic to monitor heating enable signals; when in heat pump mode, it forces the condenser fan signal to 100% to ensure proper operation during the heating cycle.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $651.49
-65%$651.49
$228.02Aaon ASM01891 Pressure Control
The 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 pressure transducers, automatically regulating condenser fans or water valves based on the highest recorded readings. This specialized HVAC pressure controller is essential for maintaining liquid line pressure during low ambient conditions, preventing system stalking and compressor strain. Whether used as a stand-alone pressure module or integrated with a VCM-X controller, it provides refrigeration head pressure stability in both air-cooled and water-cooled applications. Its ability to detect heat pump mode and force signals to 100% makes it a versatile solution for year-round climate control demanding reliable pressure regulation.
Key Benefits
- Dual Section Control: Efficiently manages two separate condenser sections by monitoring multiple pressure transducers simultaneously.
- Legacy Compatibility: Serves as the official V20660 replacement, restoring original equipment functionality without extensive retrofitting.
- Enhanced Efficiency: Minimizes expansion valve "hunting" and prevents flash gas by maintaining stable refrigerant head pressure.
- Smart Mode Detection: Automatically adjusts to 100% output during heat pump heating cycles to protect the refrigeration circuit.
- Flexible Installation: Supports E-BUS communication for advanced HVAC automation or operates as a reliable stand-alone module via dip switch settings.
Common Questions
Is the Aaon ASM01891 compatible with my older V20660 module?
Yes, the ASM01891 is the designated direct replacement for the discontinued V20660, designed to match its technical footprint and functional requirements.
Can this control module be used in low ambient cooling applications?
Absolutely. The ASM01891 head pressure controller is specifically designed to maintain proper head pressure during cold outdoor temperatures, ensuring the TXV receives a stable liquid refrigerant supply.
How does this module handle heat pump units?
The module includes logic to monitor heating enable signals; when in heat pump mode, it forces the condenser fan signal to 100% to ensure proper operation during the heating cycle.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Product Information
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Description
The 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 pressure transducers, automatically regulating condenser fans or water valves based on the highest recorded readings. This specialized HVAC pressure controller is essential for maintaining liquid line pressure during low ambient conditions, preventing system stalking and compressor strain. Whether used as a stand-alone pressure module or integrated with a VCM-X controller, it provides refrigeration head pressure stability in both air-cooled and water-cooled applications. Its ability to detect heat pump mode and force signals to 100% makes it a versatile solution for year-round climate control demanding reliable pressure regulation.
Key Benefits
- Dual Section Control: Efficiently manages two separate condenser sections by monitoring multiple pressure transducers simultaneously.
- Legacy Compatibility: Serves as the official V20660 replacement, restoring original equipment functionality without extensive retrofitting.
- Enhanced Efficiency: Minimizes expansion valve "hunting" and prevents flash gas by maintaining stable refrigerant head pressure.
- Smart Mode Detection: Automatically adjusts to 100% output during heat pump heating cycles to protect the refrigeration circuit.
- Flexible Installation: Supports E-BUS communication for advanced HVAC automation or operates as a reliable stand-alone module via dip switch settings.
Common Questions
Is the Aaon ASM01891 compatible with my older V20660 module?
Yes, the ASM01891 is the designated direct replacement for the discontinued V20660, designed to match its technical footprint and functional requirements.
Can this control module be used in low ambient cooling applications?
Absolutely. The ASM01891 head pressure controller is specifically designed to maintain proper head pressure during cold outdoor temperatures, ensuring the TXV receives a stable liquid refrigerant supply.
How does this module handle heat pump units?
The module includes logic to monitor heating enable signals; when in heat pump mode, it forces the condenser fan signal to 100% to ensure proper operation during the heating cycle.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.











