
Carrier HH79ZZ007 Sensor
The Carrier HH79ZZ007 Sensor is a high-precision thermistor sensor OAT (Outdoor Air Temperature) engineered for demanding HVACR applications. As a veteran technician knows, accurate ambient sensing is the backbone of efficient economizer logic and compressor staging. This OEM Carrier replacement part utilizes a specialized NTC thermistor to provide a dry bulb temperature reference, ensuring your EconoMi$er X or rooftop unit (RTU) responds correctly to real-time environmental shifts. With a calibrated resistance of 10 kΩ at 77°F (25°C), this sensor effectively eliminates the risk of "short cycling" or improper economizer high-limit shutoff, which commonly occurs with substandard aftermarket alternatives. The HH79ZZ007 features a rugged eyelet terminal design and moisture-sealed green lead wires, built to withstand the thermal stressors of outdoor air temperature monitoring. Whether you are performing a Carrier sensor troubleshooting routine or a fresh installation, this component delivers the ±0.5°C accuracy required to maintain Title 24 compliance and optimize seasonal energy efficiency ratios (SEER).
Key Benefits for Contractors:- System Optimization: Provides critical dry bulb data for Carrier EconoMi$er X units, allowing for "free cooling" when ambient conditions permit.
- Direct OEM Fit: Guaranteed electrical compatibility with Carrier HH79ZZ007 specifications, preventing control board error codes like EC53 or F1.
- Extreme Durability: Rated for a functional temperature range of -40°C to 60°C, ensuring reliability in both deep-freeze and high-heat environments.
- Fast Thermal Response: Features a low-mass design for sub-5 second response times to fluctuating air currents.
What is the resistance value for the HH79ZZ007?
This is a 10k ohm thermistor. It should read approximately 10,000 ohms at 77°F (25°C). If your multimeter shows an open circuit or zero resistance during a Carrier HH79ZZ007 check, the sensor has failed and requires replacement.
Can this be used as a mixed air temperature (MAT) sensor?
Yes, in many Carrier and Bryant RTU configurations, the HH79ZZ007 is utilized for both outdoor air (OAT) and mixed/supply air (MAT) sensing due to its versatile eyelet mounting and specialized calibration.
Is this compatible with non-Honeywell based controllers?
While designed specifically for Factory Authorized Parts systems using the W7220 controller (EconoMi$er X), it is compatible with any control logic expecting a standard 10k Type II NTC thermistor curve.
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: $120.01
-65%$120.01
$42.00Carrier HH79ZZ007 Sensor
The Carrier HH79ZZ007 Sensor is a high-precision thermistor sensor OAT (Outdoor Air Temperature) engineered for demanding HVACR applications. As a veteran technician knows, accurate ambient sensing is the backbone of efficient economizer logic and compressor staging. This OEM Carrier replacement part utilizes a specialized NTC thermistor to provide a dry bulb temperature reference, ensuring your EconoMi$er X or rooftop unit (RTU) responds correctly to real-time environmental shifts. With a calibrated resistance of 10 kΩ at 77°F (25°C), this sensor effectively eliminates the risk of "short cycling" or improper economizer high-limit shutoff, which commonly occurs with substandard aftermarket alternatives. The HH79ZZ007 features a rugged eyelet terminal design and moisture-sealed green lead wires, built to withstand the thermal stressors of outdoor air temperature monitoring. Whether you are performing a Carrier sensor troubleshooting routine or a fresh installation, this component delivers the ±0.5°C accuracy required to maintain Title 24 compliance and optimize seasonal energy efficiency ratios (SEER).
Key Benefits for Contractors:- System Optimization: Provides critical dry bulb data for Carrier EconoMi$er X units, allowing for "free cooling" when ambient conditions permit.
- Direct OEM Fit: Guaranteed electrical compatibility with Carrier HH79ZZ007 specifications, preventing control board error codes like EC53 or F1.
- Extreme Durability: Rated for a functional temperature range of -40°C to 60°C, ensuring reliability in both deep-freeze and high-heat environments.
- Fast Thermal Response: Features a low-mass design for sub-5 second response times to fluctuating air currents.
What is the resistance value for the HH79ZZ007?
This is a 10k ohm thermistor. It should read approximately 10,000 ohms at 77°F (25°C). If your multimeter shows an open circuit or zero resistance during a Carrier HH79ZZ007 check, the sensor has failed and requires replacement.
Can this be used as a mixed air temperature (MAT) sensor?
Yes, in many Carrier and Bryant RTU configurations, the HH79ZZ007 is utilized for both outdoor air (OAT) and mixed/supply air (MAT) sensing due to its versatile eyelet mounting and specialized calibration.
Is this compatible with non-Honeywell based controllers?
While designed specifically for Factory Authorized Parts systems using the W7220 controller (EconoMi$er X), it is compatible with any control logic expecting a standard 10k Type II NTC thermistor curve.
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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Description
The Carrier HH79ZZ007 Sensor is a high-precision thermistor sensor OAT (Outdoor Air Temperature) engineered for demanding HVACR applications. As a veteran technician knows, accurate ambient sensing is the backbone of efficient economizer logic and compressor staging. This OEM Carrier replacement part utilizes a specialized NTC thermistor to provide a dry bulb temperature reference, ensuring your EconoMi$er X or rooftop unit (RTU) responds correctly to real-time environmental shifts. With a calibrated resistance of 10 kΩ at 77°F (25°C), this sensor effectively eliminates the risk of "short cycling" or improper economizer high-limit shutoff, which commonly occurs with substandard aftermarket alternatives. The HH79ZZ007 features a rugged eyelet terminal design and moisture-sealed green lead wires, built to withstand the thermal stressors of outdoor air temperature monitoring. Whether you are performing a Carrier sensor troubleshooting routine or a fresh installation, this component delivers the ±0.5°C accuracy required to maintain Title 24 compliance and optimize seasonal energy efficiency ratios (SEER).
Key Benefits for Contractors:- System Optimization: Provides critical dry bulb data for Carrier EconoMi$er X units, allowing for "free cooling" when ambient conditions permit.
- Direct OEM Fit: Guaranteed electrical compatibility with Carrier HH79ZZ007 specifications, preventing control board error codes like EC53 or F1.
- Extreme Durability: Rated for a functional temperature range of -40°C to 60°C, ensuring reliability in both deep-freeze and high-heat environments.
- Fast Thermal Response: Features a low-mass design for sub-5 second response times to fluctuating air currents.
What is the resistance value for the HH79ZZ007?
This is a 10k ohm thermistor. It should read approximately 10,000 ohms at 77°F (25°C). If your multimeter shows an open circuit or zero resistance during a Carrier HH79ZZ007 check, the sensor has failed and requires replacement.
Can this be used as a mixed air temperature (MAT) sensor?
Yes, in many Carrier and Bryant RTU configurations, the HH79ZZ007 is utilized for both outdoor air (OAT) and mixed/supply air (MAT) sensing due to its versatile eyelet mounting and specialized calibration.
Is this compatible with non-Honeywell based controllers?
While designed specifically for Factory Authorized Parts systems using the W7220 controller (EconoMi$er X), it is compatible with any control logic expecting a standard 10k Type II NTC thermistor curve.
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.












