Carrier HT31AZ121 Crankcase Heater
The Carrier HT31AZ121 Crankcase Heater is a critical component for maintaining compressor reliability in commercial and residential refrigeration systems. This insertion type heater is specifically engineered for Carrier 05T and 06T compressors, as well as the 5H series (5H40, 5H60, 5H80, 5H120). By providing 200 Watts of targeted heat at 120 Volts, it ensures that the compressor oil remains at a temperature higher than the coldest part of the circuit. This temperature differential is essential to prevent refrigerant migration during the off-cycle, which avoids the risk of liquid slugging and oil dilution upon startup. Featuring a 3/8" diameter and a 6 3/4" insertion length, this OEM replacement part fits precisely into the compressor well for maximum heat transfer. The 63-inch leads allow for flexible routing to the contactor or control box, facilitating a standard HVAC compressor heater installation that protects internal bearings and improves overall system longevity.
Item is Non Cancelable / Non Returnable
Key Benefits- Optimized Lubrication: Maintains proper oil viscosity to ensure immediate lubrication of internal moving parts during startup.
- Refrigerant Management: Prevents refrigerant from condensing in the crankcase, reducing the potential for compressor damage.
- Direct Fit: Genuine Carrier HVAC part designed for seamless integration with 5H and 06T series compressors.
- Heavy-Duty Leads: 63-inch lead wires provide ample length for secure connections in complex control cabinets.
Which compressor models are compatible with the HT31AZ121?
This heater is designed for Carrier 05TA/TR, 06TA/TR, and 5H series compressors, including the 5H40, 5H46, 5H60, 5H66, 5H80, 5H86, 5H120, and 5H126 models.
Why is a 200W crankcase heater necessary for my system?
The 200W output is calibrated to keep the oil reservoir warm enough to boil off any migrating refrigerant vapor, ensuring the compressor starts with pure oil rather than a refrigerant-oil mixture.
How do I verify if this insertion heater is working?
An HVAC technician should check for continuity across the leads or measure the amp draw while the compressor contactor is de-energized to ensure the resistance element is generating heat.
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: $354.64
-65%$354.64
$124.12Carrier HT31AZ121 Crankcase Heater
The Carrier HT31AZ121 Crankcase Heater is a critical component for maintaining compressor reliability in commercial and residential refrigeration systems. This insertion type heater is specifically engineered for Carrier 05T and 06T compressors, as well as the 5H series (5H40, 5H60, 5H80, 5H120). By providing 200 Watts of targeted heat at 120 Volts, it ensures that the compressor oil remains at a temperature higher than the coldest part of the circuit. This temperature differential is essential to prevent refrigerant migration during the off-cycle, which avoids the risk of liquid slugging and oil dilution upon startup. Featuring a 3/8" diameter and a 6 3/4" insertion length, this OEM replacement part fits precisely into the compressor well for maximum heat transfer. The 63-inch leads allow for flexible routing to the contactor or control box, facilitating a standard HVAC compressor heater installation that protects internal bearings and improves overall system longevity.
Item is Non Cancelable / Non Returnable
Key Benefits- Optimized Lubrication: Maintains proper oil viscosity to ensure immediate lubrication of internal moving parts during startup.
- Refrigerant Management: Prevents refrigerant from condensing in the crankcase, reducing the potential for compressor damage.
- Direct Fit: Genuine Carrier HVAC part designed for seamless integration with 5H and 06T series compressors.
- Heavy-Duty Leads: 63-inch lead wires provide ample length for secure connections in complex control cabinets.
Which compressor models are compatible with the HT31AZ121?
This heater is designed for Carrier 05TA/TR, 06TA/TR, and 5H series compressors, including the 5H40, 5H46, 5H60, 5H66, 5H80, 5H86, 5H120, and 5H126 models.
Why is a 200W crankcase heater necessary for my system?
The 200W output is calibrated to keep the oil reservoir warm enough to boil off any migrating refrigerant vapor, ensuring the compressor starts with pure oil rather than a refrigerant-oil mixture.
How do I verify if this insertion heater is working?
An HVAC technician should check for continuity across the leads or measure the amp draw while the compressor contactor is de-energized to ensure the resistance element is generating heat.
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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Shipping & Returns
Description
The Carrier HT31AZ121 Crankcase Heater is a critical component for maintaining compressor reliability in commercial and residential refrigeration systems. This insertion type heater is specifically engineered for Carrier 05T and 06T compressors, as well as the 5H series (5H40, 5H60, 5H80, 5H120). By providing 200 Watts of targeted heat at 120 Volts, it ensures that the compressor oil remains at a temperature higher than the coldest part of the circuit. This temperature differential is essential to prevent refrigerant migration during the off-cycle, which avoids the risk of liquid slugging and oil dilution upon startup. Featuring a 3/8" diameter and a 6 3/4" insertion length, this OEM replacement part fits precisely into the compressor well for maximum heat transfer. The 63-inch leads allow for flexible routing to the contactor or control box, facilitating a standard HVAC compressor heater installation that protects internal bearings and improves overall system longevity.
Item is Non Cancelable / Non Returnable
Key Benefits- Optimized Lubrication: Maintains proper oil viscosity to ensure immediate lubrication of internal moving parts during startup.
- Refrigerant Management: Prevents refrigerant from condensing in the crankcase, reducing the potential for compressor damage.
- Direct Fit: Genuine Carrier HVAC part designed for seamless integration with 5H and 06T series compressors.
- Heavy-Duty Leads: 63-inch lead wires provide ample length for secure connections in complex control cabinets.
Which compressor models are compatible with the HT31AZ121?
This heater is designed for Carrier 05TA/TR, 06TA/TR, and 5H series compressors, including the 5H40, 5H46, 5H60, 5H66, 5H80, 5H86, 5H120, and 5H126 models.
Why is a 200W crankcase heater necessary for my system?
The 200W output is calibrated to keep the oil reservoir warm enough to boil off any migrating refrigerant vapor, ensuring the compressor starts with pure oil rather than a refrigerant-oil mixture.
How do I verify if this insertion heater is working?
An HVAC technician should check for continuity across the leads or measure the amp draw while the compressor contactor is de-energized to ensure the resistance element is generating heat.
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.
