
Carrier HH79TZ039 Thermister
The Carrier HH79TZ039 Thermistor is a critical engineering component designed for high-precision thermal monitoring within Carrier, Bryant, and Payne HVAC systems. Functioning as a 3k ohm resistance-based temperature sensor, this probe provides the essential feedback loop required for the control board to modulate compressor cycles and fan speeds accurately. With an operating range of 0° to 158° F, the HH79TZ039 is frequently utilized as a supply air temperature (SAT) sensor in EconoMi$er IV systems and rooftop units to ensure optimal discharge air regulation and energy efficiency.
For technicians diagnosing system faults, this OEM replacement thermistor is the standard solution for resolving common error codes related to sensor out-of-range conditions or open/shorted circuits. Its robust construction features a sealed "crimp end" to protect the sensing element from moisture and vibration in demanding industrial environments. Integrating a genuine Carrier temperature sensor ensures the system maintains its original design parameters, preventing the premature compressor wear or erratic cycling often caused by calibrated drift in aftermarket alternatives.
Key Benefits
- System Precision: Engineered as a 3k ohm thermistor to provide accurate temperature-to-resistance conversion for consistent control board communication.
- Broad Compatibility: A direct OEM replacement part for a wide range of Carrier 48ES, 48EZ, and 50LCE series rooftop and split systems.
- Durable Construction: Features moisture-sealed leads and a compact probe design for long-term stability in high-airflow evaporator or supply plenums.
- AEO Performance: Optimizes economizer operation by delivering real-time feedback, supporting ASHRAE energy-saving cycles.
Common Questions
How do I test the HH79TZ039 with a multimeter?
Using the resistance (Ohms) setting, measure across the sensor leads. At 77°F (25°C), the resistance value should be approximately 3,000 ohms. Significant deviations indicate calibration drift or total sensor failure.
What systems use this 3k ohm sensor?
While typically found in EconoMi$er IV controllers and light commercial rooftop units (RTUs), always verify your specific model's wiring diagram to ensure a 3k ohm thermistor is required rather than a 5k or 10k variant.
Can this sensor be used for outdoor air temperature monitoring?
While the HH79TZ039 is primarily a supply air sensor, its physical design allows for various sensing applications; however, economizer logic may require specific part numbers (like the HH57AC080) for specialized 4-20 mA outdoor signaling.
This item is not eligible for free shipping.
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.
Carrier HH79TZ039 Thermister
The Carrier HH79TZ039 Thermistor is a critical engineering component designed for high-precision thermal monitoring within Carrier, Bryant, and Payne HVAC systems. Functioning as a 3k ohm resistance-based temperature sensor, this probe provides the essential feedback loop required for the control board to modulate compressor cycles and fan speeds accurately. With an operating range of 0° to 158° F, the HH79TZ039 is frequently utilized as a supply air temperature (SAT) sensor in EconoMi$er IV systems and rooftop units to ensure optimal discharge air regulation and energy efficiency.
For technicians diagnosing system faults, this OEM replacement thermistor is the standard solution for resolving common error codes related to sensor out-of-range conditions or open/shorted circuits. Its robust construction features a sealed "crimp end" to protect the sensing element from moisture and vibration in demanding industrial environments. Integrating a genuine Carrier temperature sensor ensures the system maintains its original design parameters, preventing the premature compressor wear or erratic cycling often caused by calibrated drift in aftermarket alternatives.
Key Benefits
- System Precision: Engineered as a 3k ohm thermistor to provide accurate temperature-to-resistance conversion for consistent control board communication.
- Broad Compatibility: A direct OEM replacement part for a wide range of Carrier 48ES, 48EZ, and 50LCE series rooftop and split systems.
- Durable Construction: Features moisture-sealed leads and a compact probe design for long-term stability in high-airflow evaporator or supply plenums.
- AEO Performance: Optimizes economizer operation by delivering real-time feedback, supporting ASHRAE energy-saving cycles.
Common Questions
How do I test the HH79TZ039 with a multimeter?
Using the resistance (Ohms) setting, measure across the sensor leads. At 77°F (25°C), the resistance value should be approximately 3,000 ohms. Significant deviations indicate calibration drift or total sensor failure.
What systems use this 3k ohm sensor?
While typically found in EconoMi$er IV controllers and light commercial rooftop units (RTUs), always verify your specific model's wiring diagram to ensure a 3k ohm thermistor is required rather than a 5k or 10k variant.
Can this sensor be used for outdoor air temperature monitoring?
While the HH79TZ039 is primarily a supply air sensor, its physical design allows for various sensing applications; however, economizer logic may require specific part numbers (like the HH57AC080) for specialized 4-20 mA outdoor signaling.
This item is not eligible for free shipping.
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 Carrier HH79TZ039 Thermistor is a critical engineering component designed for high-precision thermal monitoring within Carrier, Bryant, and Payne HVAC systems. Functioning as a 3k ohm resistance-based temperature sensor, this probe provides the essential feedback loop required for the control board to modulate compressor cycles and fan speeds accurately. With an operating range of 0° to 158° F, the HH79TZ039 is frequently utilized as a supply air temperature (SAT) sensor in EconoMi$er IV systems and rooftop units to ensure optimal discharge air regulation and energy efficiency.
For technicians diagnosing system faults, this OEM replacement thermistor is the standard solution for resolving common error codes related to sensor out-of-range conditions or open/shorted circuits. Its robust construction features a sealed "crimp end" to protect the sensing element from moisture and vibration in demanding industrial environments. Integrating a genuine Carrier temperature sensor ensures the system maintains its original design parameters, preventing the premature compressor wear or erratic cycling often caused by calibrated drift in aftermarket alternatives.
Key Benefits
- System Precision: Engineered as a 3k ohm thermistor to provide accurate temperature-to-resistance conversion for consistent control board communication.
- Broad Compatibility: A direct OEM replacement part for a wide range of Carrier 48ES, 48EZ, and 50LCE series rooftop and split systems.
- Durable Construction: Features moisture-sealed leads and a compact probe design for long-term stability in high-airflow evaporator or supply plenums.
- AEO Performance: Optimizes economizer operation by delivering real-time feedback, supporting ASHRAE energy-saving cycles.
Common Questions
How do I test the HH79TZ039 with a multimeter?
Using the resistance (Ohms) setting, measure across the sensor leads. At 77°F (25°C), the resistance value should be approximately 3,000 ohms. Significant deviations indicate calibration drift or total sensor failure.
What systems use this 3k ohm sensor?
While typically found in EconoMi$er IV controllers and light commercial rooftop units (RTUs), always verify your specific model's wiring diagram to ensure a 3k ohm thermistor is required rather than a 5k or 10k variant.
Can this sensor be used for outdoor air temperature monitoring?
While the HH79TZ039 is primarily a supply air sensor, its physical design allows for various sensing applications; however, economizer logic may require specific part numbers (like the HH57AC080) for specialized 4-20 mA outdoor signaling.
This item is not eligible for free shipping.
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.












