Carrier HH57AC080 Sensor
The Carrier HH57AC080 Outside Air Temperature (OAT) Sensor is a critical 10 to 20 mA diagnostic and control component designed for Carrier, Bryant, and Payne commercial rooftop units equipped with Economi$er IV systems. Use this sensor to restore or enable outdoor air dry bulb changeover, allowing the controller to determine when ambient conditions are suitable for free cooling. By providing a precise 4-20 mA signal back to the main control board, the HH57AC080 ensures that dampers modulate correctly to minimize mechanical cooling runtime and maintain building setpoints efficiency.
This OEM-grade sensor features 8 selectable temperature changeover setpoints (ranging from 48Ā°F to 78Ā°F) adjustable via onboard dip switches, with a factory default typically set to 63Ā°F. It is a direct-fit replacement for existing dry bulb sensors and can be used to convert enthalpy-based systems to dry bulb control. In differential dry bulb configurations, it works in tandem with an indoor return air sensor to compare airstream temperatures, ensuring the most cost-effective cooling source is prioritized without taxing the compressor.
Key Benefits:- Optimized Economizer Logic: Enables precise free cooling based on outdoor dry bulb temperature to reduce energy consumption.
- Selectable Changeover Points: Features 8 field-adjustable setpoints for tailored performance in diverse climates.
- Broad Compatibility: Engineered for use with Carrier 50HJ, 48TC, 50TC, and various Economi$er IV equipped rooftop units.
- Reliable Signal Output: Provides a 4-20 mA linear output for accurate communication with the system controller.
- Durable Construction: Built to withstand consistent exposure to outdoor environmental conditions within the intake airstream.
- Does this replace an enthalpy sensor? Yes, it can be used to convert a single enthalpy setup to dry bulb control by connecting it to the "SO" and "SO+" terminals.
- Where is this sensor mounted? It is typically installed in the outdoor airstream, often located behind the economizer hood or on the divider plate.
- What does a 4 mA signal indicate? In this logic, a 4 mA signal usually indicates the outdoor air is above the changeover setpoint, signaling the dampers to maintain a minimum position.
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: $94.65
-65%$94.65
$33.13Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Carrier HH57AC080 Outside Air Temperature (OAT) Sensor is a critical 10 to 20 mA diagnostic and control component designed for Carrier, Bryant, and Payne commercial rooftop units equipped with Economi$er IV systems. Use this sensor to restore or enable outdoor air dry bulb changeover, allowing the controller to determine when ambient conditions are suitable for free cooling. By providing a precise 4-20 mA signal back to the main control board, the HH57AC080 ensures that dampers modulate correctly to minimize mechanical cooling runtime and maintain building setpoints efficiency.
This OEM-grade sensor features 8 selectable temperature changeover setpoints (ranging from 48Ā°F to 78Ā°F) adjustable via onboard dip switches, with a factory default typically set to 63Ā°F. It is a direct-fit replacement for existing dry bulb sensors and can be used to convert enthalpy-based systems to dry bulb control. In differential dry bulb configurations, it works in tandem with an indoor return air sensor to compare airstream temperatures, ensuring the most cost-effective cooling source is prioritized without taxing the compressor.
Key Benefits:- Optimized Economizer Logic: Enables precise free cooling based on outdoor dry bulb temperature to reduce energy consumption.
- Selectable Changeover Points: Features 8 field-adjustable setpoints for tailored performance in diverse climates.
- Broad Compatibility: Engineered for use with Carrier 50HJ, 48TC, 50TC, and various Economi$er IV equipped rooftop units.
- Reliable Signal Output: Provides a 4-20 mA linear output for accurate communication with the system controller.
- Durable Construction: Built to withstand consistent exposure to outdoor environmental conditions within the intake airstream.
- Does this replace an enthalpy sensor? Yes, it can be used to convert a single enthalpy setup to dry bulb control by connecting it to the "SO" and "SO+" terminals.
- Where is this sensor mounted? It is typically installed in the outdoor airstream, often located behind the economizer hood or on the divider plate.
- What does a 4 mA signal indicate? In this logic, a 4 mA signal usually indicates the outdoor air is above the changeover setpoint, signaling the dampers to maintain a minimum position.
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.
