Lennox 98M12 Piston
The Lennox 98M12 Piston is a precision-engineered fixed orifice metering device designed for specific HVAC applications requiring an expansion orifice size of .062. This refrigeration piston serves as a critical component in maintaining correct refrigerant mass flow across the evaporator coil, ensuring optimized heat transfer and system pressure balance. When performing a field replacement or matching a specific condensing unit and indoor coil combination, utilizing the correct Lennox OEM piston is essential to prevent liquid slugging or inadequate superheat levels. Manufactured to rigorous tolerances, this 0.062 metering piston provides reliable performance in R-22 or R-410A systems where a fixed orifice is specified by the charging chart or manufacturer documentation. Technicians should verify the piston sizing chart to ensure the .062 diameter aligns with the total system tonnage and lineset length to maintain evaporator efficiency and compressor longevity.
Key Technical Benefits
- Precision Orifice Machining: Ensures consistent refrigerant flow control and pressure drop across the metering assembly.
- OEM Compatibility: Designed strictly for Lennox residential equipment and matched air handlers or cased coils.
- Durable Construction: High-grade metallic composition resists erosion and debris buildup within the liquid line assembly.
- System Optimization: Critical for achieving targeted superheat and subcooling values during system commissioning.
Common Installation Questions
How do I verify if a .062 piston is correct for my Lennox system?
Always refer to the outdoor unit's rating plate or the installation manual. The required piston size is determined by the capacity match between the condenser and the evaporator coil.
Can this piston be used in heat pump applications?
This piston is typically utilized in the indoor distributor assembly; however, if the heat pump requires a specific flow direction or check-valve capability, verify the check-piston requirements in the technical specifications.
Is any specific orientation required during installation?
Yes, ensure the piston is seated correctly within the distributor body and that the Teflon ring is intact to prevent refrigerant bypass, which can cause erratic suction pressures.
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: $15.09
-65%$15.09
$5.28Lennox 98M12 Piston
The Lennox 98M12 Piston is a precision-engineered fixed orifice metering device designed for specific HVAC applications requiring an expansion orifice size of .062. This refrigeration piston serves as a critical component in maintaining correct refrigerant mass flow across the evaporator coil, ensuring optimized heat transfer and system pressure balance. When performing a field replacement or matching a specific condensing unit and indoor coil combination, utilizing the correct Lennox OEM piston is essential to prevent liquid slugging or inadequate superheat levels. Manufactured to rigorous tolerances, this 0.062 metering piston provides reliable performance in R-22 or R-410A systems where a fixed orifice is specified by the charging chart or manufacturer documentation. Technicians should verify the piston sizing chart to ensure the .062 diameter aligns with the total system tonnage and lineset length to maintain evaporator efficiency and compressor longevity.
Key Technical Benefits
- Precision Orifice Machining: Ensures consistent refrigerant flow control and pressure drop across the metering assembly.
- OEM Compatibility: Designed strictly for Lennox residential equipment and matched air handlers or cased coils.
- Durable Construction: High-grade metallic composition resists erosion and debris buildup within the liquid line assembly.
- System Optimization: Critical for achieving targeted superheat and subcooling values during system commissioning.
Common Installation Questions
How do I verify if a .062 piston is correct for my Lennox system?
Always refer to the outdoor unit's rating plate or the installation manual. The required piston size is determined by the capacity match between the condenser and the evaporator coil.
Can this piston be used in heat pump applications?
This piston is typically utilized in the indoor distributor assembly; however, if the heat pump requires a specific flow direction or check-valve capability, verify the check-piston requirements in the technical specifications.
Is any specific orientation required during installation?
Yes, ensure the piston is seated correctly within the distributor body and that the Teflon ring is intact to prevent refrigerant bypass, which can cause erratic suction pressures.
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 Lennox 98M12 Piston is a precision-engineered fixed orifice metering device designed for specific HVAC applications requiring an expansion orifice size of .062. This refrigeration piston serves as a critical component in maintaining correct refrigerant mass flow across the evaporator coil, ensuring optimized heat transfer and system pressure balance. When performing a field replacement or matching a specific condensing unit and indoor coil combination, utilizing the correct Lennox OEM piston is essential to prevent liquid slugging or inadequate superheat levels. Manufactured to rigorous tolerances, this 0.062 metering piston provides reliable performance in R-22 or R-410A systems where a fixed orifice is specified by the charging chart or manufacturer documentation. Technicians should verify the piston sizing chart to ensure the .062 diameter aligns with the total system tonnage and lineset length to maintain evaporator efficiency and compressor longevity.
Key Technical Benefits
- Precision Orifice Machining: Ensures consistent refrigerant flow control and pressure drop across the metering assembly.
- OEM Compatibility: Designed strictly for Lennox residential equipment and matched air handlers or cased coils.
- Durable Construction: High-grade metallic composition resists erosion and debris buildup within the liquid line assembly.
- System Optimization: Critical for achieving targeted superheat and subcooling values during system commissioning.
Common Installation Questions
How do I verify if a .062 piston is correct for my Lennox system?
Always refer to the outdoor unit's rating plate or the installation manual. The required piston size is determined by the capacity match between the condenser and the evaporator coil.
Can this piston be used in heat pump applications?
This piston is typically utilized in the indoor distributor assembly; however, if the heat pump requires a specific flow direction or check-valve capability, verify the check-piston requirements in the technical specifications.
Is any specific orientation required during installation?
Yes, ensure the piston is seated correctly within the distributor body and that the Teflon ring is intact to prevent refrigerant bypass, which can cause erratic suction pressures.
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.
