
Carrier HF660007 Enthalpy Control
The Carrier HF660007 Enthalpy Control with integrated sensor is the direct OEM replacement for the obsolete HH57AC077. Engineered for 24 VAC commercial economizer systems, this high-precision HVAG enthalpy controller monitors both latent and sensible heat to optimize outside air intake. By calculating the total heat content of the air rather than just dry-bulb temperature, the HF660007 ensures the economizer only utilizes outdoor air when it is truly more energy-efficient than mechanical cooling. This factory authorized part is critical for maintaining indoor air quality and energy code compliance in rooftop units (RTUs). As a direct replacement enthalpy sensor, it features a rugged, compact housing designed for the harsh environments of an intake hood or return air duct. Whether used in single or differential enthalpy control configurations, this unit provides the reliable 50/60Hz performance required by commercial service technicians to restore factory-spec economizer logic.
Key Benefits
- Precise Environmental Monitoring: Integrated sensor technology tracks real-time humidity and temperature for accurate enthalpy changeover logic.
- Drop-in Compatibility: Designed specifically to replace older Carrier HH57AC077 and HH57AC076 models without mounting modifications.
- Optimized Energy Efficiency: Prevents the introduction of high-humidity outdoor air, reducing the latent load on the evaporator coil.
- Durable Construction: Meets rigorous OEM standards for long-term reliability in high-cycle commercial HVAC applications.
- Non-Returnable Component: This is a definitive Carrier OEM replacement part; please verify your wiring diagram and model compatibility before purchasing Carrier HF660007.
Common Questions
Does this replace the HH57AC077 model?
Yes, the HF660007 is the designated factory replacement for the HH57AC077 enthalpy control. It maintains the same electrical footprint and technical specifications for seamless field installation.
Can this be used for differential enthalpy sensing?
While this unit includes a primary sensor, differential enthalpy control typically requires a second sensor (often an HH57AC078) to compare return air to outdoor air. This controller provides the logic processing to handle those inputs.
Is the sensor included with this controller?
Yes, this economizer enthalpy kit includes the necessary sensor for standard enthalpy changeover operation, ensuring you have the components needed for a basic service call replacement.
Item is Non Cancelable / Non Returnable
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: $1,547.25
-65%$1,547.25
$541.54Carrier HF660007 Enthalpy Control
The Carrier HF660007 Enthalpy Control with integrated sensor is the direct OEM replacement for the obsolete HH57AC077. Engineered for 24 VAC commercial economizer systems, this high-precision HVAG enthalpy controller monitors both latent and sensible heat to optimize outside air intake. By calculating the total heat content of the air rather than just dry-bulb temperature, the HF660007 ensures the economizer only utilizes outdoor air when it is truly more energy-efficient than mechanical cooling. This factory authorized part is critical for maintaining indoor air quality and energy code compliance in rooftop units (RTUs). As a direct replacement enthalpy sensor, it features a rugged, compact housing designed for the harsh environments of an intake hood or return air duct. Whether used in single or differential enthalpy control configurations, this unit provides the reliable 50/60Hz performance required by commercial service technicians to restore factory-spec economizer logic.
Key Benefits
- Precise Environmental Monitoring: Integrated sensor technology tracks real-time humidity and temperature for accurate enthalpy changeover logic.
- Drop-in Compatibility: Designed specifically to replace older Carrier HH57AC077 and HH57AC076 models without mounting modifications.
- Optimized Energy Efficiency: Prevents the introduction of high-humidity outdoor air, reducing the latent load on the evaporator coil.
- Durable Construction: Meets rigorous OEM standards for long-term reliability in high-cycle commercial HVAC applications.
- Non-Returnable Component: This is a definitive Carrier OEM replacement part; please verify your wiring diagram and model compatibility before purchasing Carrier HF660007.
Common Questions
Does this replace the HH57AC077 model?
Yes, the HF660007 is the designated factory replacement for the HH57AC077 enthalpy control. It maintains the same electrical footprint and technical specifications for seamless field installation.
Can this be used for differential enthalpy sensing?
While this unit includes a primary sensor, differential enthalpy control typically requires a second sensor (often an HH57AC078) to compare return air to outdoor air. This controller provides the logic processing to handle those inputs.
Is the sensor included with this controller?
Yes, this economizer enthalpy kit includes the necessary sensor for standard enthalpy changeover operation, ensuring you have the components needed for a basic service call replacement.
Item is Non Cancelable / Non Returnable
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
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Description
The Carrier HF660007 Enthalpy Control with integrated sensor is the direct OEM replacement for the obsolete HH57AC077. Engineered for 24 VAC commercial economizer systems, this high-precision HVAG enthalpy controller monitors both latent and sensible heat to optimize outside air intake. By calculating the total heat content of the air rather than just dry-bulb temperature, the HF660007 ensures the economizer only utilizes outdoor air when it is truly more energy-efficient than mechanical cooling. This factory authorized part is critical for maintaining indoor air quality and energy code compliance in rooftop units (RTUs). As a direct replacement enthalpy sensor, it features a rugged, compact housing designed for the harsh environments of an intake hood or return air duct. Whether used in single or differential enthalpy control configurations, this unit provides the reliable 50/60Hz performance required by commercial service technicians to restore factory-spec economizer logic.
Key Benefits
- Precise Environmental Monitoring: Integrated sensor technology tracks real-time humidity and temperature for accurate enthalpy changeover logic.
- Drop-in Compatibility: Designed specifically to replace older Carrier HH57AC077 and HH57AC076 models without mounting modifications.
- Optimized Energy Efficiency: Prevents the introduction of high-humidity outdoor air, reducing the latent load on the evaporator coil.
- Durable Construction: Meets rigorous OEM standards for long-term reliability in high-cycle commercial HVAC applications.
- Non-Returnable Component: This is a definitive Carrier OEM replacement part; please verify your wiring diagram and model compatibility before purchasing Carrier HF660007.
Common Questions
Does this replace the HH57AC077 model?
Yes, the HF660007 is the designated factory replacement for the HH57AC077 enthalpy control. It maintains the same electrical footprint and technical specifications for seamless field installation.
Can this be used for differential enthalpy sensing?
While this unit includes a primary sensor, differential enthalpy control typically requires a second sensor (often an HH57AC078) to compare return air to outdoor air. This controller provides the logic processing to handle those inputs.
Is the sensor included with this controller?
Yes, this economizer enthalpy kit includes the necessary sensor for standard enthalpy changeover operation, ensuring you have the components needed for a basic service call replacement.
Item is Non Cancelable / Non Returnable
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.












