Emerson Alco 804490 Temperature Sensor
The Emerson Alco 804490 Temperature Sensor is a precision NTC thermistor engineered for high-accuracy thermal sensing in commercial refrigeration and HVAC systems. As the direct replacement for 097714 and 804497, this NTC temperature probe ensures seamless integration with Alco electronic controllers, maintaining strict refrigeration system temperature control. Designed for demanding environments, the 804490 provides a rapid thermal response time and high resistance stability, which is critical for preventing evaporator freeze-ups or compressor liquid slugging. When performing a HVAC sensor replacement, this unit offers the necessary electrical characteristics for accurate PID loop feedback. Field technicians rely on the Alco 804490 for its durable lead construction and moisture-resistant potting, ensuring long-term reliability in high-humidity applications. By utilizing the Emerson 804490 technical specifications, contractors can provide precise superheat or discharge gas temperature monitoring, optimizing overall system efficiency and reducing unnecessary cycles.
Key Technical Benefits
- Direct Cross-Reference: Engineered as the official substitute for legacy part numbers 097714 and 804497.
- High Sensitivity: Optimized NTC thermistor curve for precise resistance-to-temperature conversion.
- Durable Construction: Built to withstand thermal cycling and vibration common in commercial condensing units.
- Simplified Calibration: Factory-calibrated resistance values ensure immediate compatibility with Alco controllers without extensive field adjustment.
Common Questions
Is the Alco 804490 compatible with non-Emerson controllers?
This sensor is specifically calibrated for the resistance curves utilized by Emerson and Alco electronic expansion valve (EEV) controllers and temperature modules. Using it with third-party hardware may require verifying the R/T chart compatibility.
What are the signs of a failing 804490 temperature sensor?
Technicians should look for erratic resistance readings (ohms), "Open" or "Short" circuit alarms on the controller, or system hunting caused by inaccurate temperature feedback to the expansion valve.
Can the sensor leads be extended in the field?
Yes, but it is critical to use high-quality shielded cable and moisture-tight connectors to prevent adding parasitic resistance, which would drift the temperature reading.
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: $22.33
-65%$22.33
$7.82Emerson Alco 804490 Temperature Sensor
The Emerson Alco 804490 Temperature Sensor is a precision NTC thermistor engineered for high-accuracy thermal sensing in commercial refrigeration and HVAC systems. As the direct replacement for 097714 and 804497, this NTC temperature probe ensures seamless integration with Alco electronic controllers, maintaining strict refrigeration system temperature control. Designed for demanding environments, the 804490 provides a rapid thermal response time and high resistance stability, which is critical for preventing evaporator freeze-ups or compressor liquid slugging. When performing a HVAC sensor replacement, this unit offers the necessary electrical characteristics for accurate PID loop feedback. Field technicians rely on the Alco 804490 for its durable lead construction and moisture-resistant potting, ensuring long-term reliability in high-humidity applications. By utilizing the Emerson 804490 technical specifications, contractors can provide precise superheat or discharge gas temperature monitoring, optimizing overall system efficiency and reducing unnecessary cycles.
Key Technical Benefits
- Direct Cross-Reference: Engineered as the official substitute for legacy part numbers 097714 and 804497.
- High Sensitivity: Optimized NTC thermistor curve for precise resistance-to-temperature conversion.
- Durable Construction: Built to withstand thermal cycling and vibration common in commercial condensing units.
- Simplified Calibration: Factory-calibrated resistance values ensure immediate compatibility with Alco controllers without extensive field adjustment.
Common Questions
Is the Alco 804490 compatible with non-Emerson controllers?
This sensor is specifically calibrated for the resistance curves utilized by Emerson and Alco electronic expansion valve (EEV) controllers and temperature modules. Using it with third-party hardware may require verifying the R/T chart compatibility.
What are the signs of a failing 804490 temperature sensor?
Technicians should look for erratic resistance readings (ohms), "Open" or "Short" circuit alarms on the controller, or system hunting caused by inaccurate temperature feedback to the expansion valve.
Can the sensor leads be extended in the field?
Yes, but it is critical to use high-quality shielded cable and moisture-tight connectors to prevent adding parasitic resistance, which would drift the temperature reading.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Emerson Alco 804490 Temperature Sensor is a precision NTC thermistor engineered for high-accuracy thermal sensing in commercial refrigeration and HVAC systems. As the direct replacement for 097714 and 804497, this NTC temperature probe ensures seamless integration with Alco electronic controllers, maintaining strict refrigeration system temperature control. Designed for demanding environments, the 804490 provides a rapid thermal response time and high resistance stability, which is critical for preventing evaporator freeze-ups or compressor liquid slugging. When performing a HVAC sensor replacement, this unit offers the necessary electrical characteristics for accurate PID loop feedback. Field technicians rely on the Alco 804490 for its durable lead construction and moisture-resistant potting, ensuring long-term reliability in high-humidity applications. By utilizing the Emerson 804490 technical specifications, contractors can provide precise superheat or discharge gas temperature monitoring, optimizing overall system efficiency and reducing unnecessary cycles.
Key Technical Benefits
- Direct Cross-Reference: Engineered as the official substitute for legacy part numbers 097714 and 804497.
- High Sensitivity: Optimized NTC thermistor curve for precise resistance-to-temperature conversion.
- Durable Construction: Built to withstand thermal cycling and vibration common in commercial condensing units.
- Simplified Calibration: Factory-calibrated resistance values ensure immediate compatibility with Alco controllers without extensive field adjustment.
Common Questions
Is the Alco 804490 compatible with non-Emerson controllers?
This sensor is specifically calibrated for the resistance curves utilized by Emerson and Alco electronic expansion valve (EEV) controllers and temperature modules. Using it with third-party hardware may require verifying the R/T chart compatibility.
What are the signs of a failing 804490 temperature sensor?
Technicians should look for erratic resistance readings (ohms), "Open" or "Short" circuit alarms on the controller, or system hunting caused by inaccurate temperature feedback to the expansion valve.
Can the sensor leads be extended in the field?
Yes, but it is critical to use high-quality shielded cable and moisture-tight connectors to prevent adding parasitic resistance, which would drift the temperature reading.
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.
