Lennox 97M78 Kit
The Lennox 97M78 Kit-RFC is a critical field-replacement component designed specifically for precise refrigerant flow control in high-efficiency cooling systems. This RFC orifice assembly features a 0.076-inch bore diameter, engineered to maintain accurate pressure drops across the evaporator coil for optimal thermal exchange. As a direct OEM replacement part, the 97M78 ensures mid-range residential and light commercial units operate within factory-specified subcooling and superheat parameters. When performing a dry-charge installation or repairing a leak-compromised metering device, utilizing this Lennox refrigerant flow control kit prevents compressor liquid slugging and ensures consistent BTU output. The precision-machined brass housing provides a secure, leak-resistant connection, essential for maintaining system integrity under high operating pressures. This kit is a necessary inventory item for HVAC technicians servicing older R-22 or modern R-410A systems that utilize fixed-orifice metering rather than thermostatic expansion valves.
Key Technical Benefits
- Precision Metering: The .076 orifice size ensures calibrated refrigerant flow for specific tonnage requirements.
- OEM Compatibility: Designed as a direct fit for Lennox HVAC equipment, eliminating the need for field modifications.
- Durable Construction: High-grade brass body resists corrosion and maintains tolerance under thermal cycling.
- System Reliability: Helps restore factory-spec efficiency and prevents premature compressor wear caused by improper refrigerant dosing.
Frequently Asked Questions
What is the purpose of the 0.076 orifice in this kit?
The .076 bore acts as a fixed metering device, creating the necessary pressure drop to transition high-pressure liquid refrigerant into a low-pressure saturated vapor before it enters the evaporator coil.
Can I use the 97M78 kit for both R-22 and R-410A systems?
While the physical fit may be identical, technicians must verify the load calculation and coil capacity. This piston-style metering device must match the specific BTU rating of the outdoor unit to prevent floodback.
Is this a substitute for a TXV?
No, this is a fixed RFC piston assembly. If the system was originally designed for a thermostatic expansion valve, switching to an orifice may significantly decrease seasonal efficiency ratios.
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.
Lennox 97M78 Kit
The Lennox 97M78 Kit-RFC is a critical field-replacement component designed specifically for precise refrigerant flow control in high-efficiency cooling systems. This RFC orifice assembly features a 0.076-inch bore diameter, engineered to maintain accurate pressure drops across the evaporator coil for optimal thermal exchange. As a direct OEM replacement part, the 97M78 ensures mid-range residential and light commercial units operate within factory-specified subcooling and superheat parameters. When performing a dry-charge installation or repairing a leak-compromised metering device, utilizing this Lennox refrigerant flow control kit prevents compressor liquid slugging and ensures consistent BTU output. The precision-machined brass housing provides a secure, leak-resistant connection, essential for maintaining system integrity under high operating pressures. This kit is a necessary inventory item for HVAC technicians servicing older R-22 or modern R-410A systems that utilize fixed-orifice metering rather than thermostatic expansion valves.
Key Technical Benefits
- Precision Metering: The .076 orifice size ensures calibrated refrigerant flow for specific tonnage requirements.
- OEM Compatibility: Designed as a direct fit for Lennox HVAC equipment, eliminating the need for field modifications.
- Durable Construction: High-grade brass body resists corrosion and maintains tolerance under thermal cycling.
- System Reliability: Helps restore factory-spec efficiency and prevents premature compressor wear caused by improper refrigerant dosing.
Frequently Asked Questions
What is the purpose of the 0.076 orifice in this kit?
The .076 bore acts as a fixed metering device, creating the necessary pressure drop to transition high-pressure liquid refrigerant into a low-pressure saturated vapor before it enters the evaporator coil.
Can I use the 97M78 kit for both R-22 and R-410A systems?
While the physical fit may be identical, technicians must verify the load calculation and coil capacity. This piston-style metering device must match the specific BTU rating of the outdoor unit to prevent floodback.
Is this a substitute for a TXV?
No, this is a fixed RFC piston assembly. If the system was originally designed for a thermostatic expansion valve, switching to an orifice may significantly decrease seasonal efficiency ratios.
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
Shipping & Returns
Shipping & Returns
Description
The Lennox 97M78 Kit-RFC is a critical field-replacement component designed specifically for precise refrigerant flow control in high-efficiency cooling systems. This RFC orifice assembly features a 0.076-inch bore diameter, engineered to maintain accurate pressure drops across the evaporator coil for optimal thermal exchange. As a direct OEM replacement part, the 97M78 ensures mid-range residential and light commercial units operate within factory-specified subcooling and superheat parameters. When performing a dry-charge installation or repairing a leak-compromised metering device, utilizing this Lennox refrigerant flow control kit prevents compressor liquid slugging and ensures consistent BTU output. The precision-machined brass housing provides a secure, leak-resistant connection, essential for maintaining system integrity under high operating pressures. This kit is a necessary inventory item for HVAC technicians servicing older R-22 or modern R-410A systems that utilize fixed-orifice metering rather than thermostatic expansion valves.
Key Technical Benefits
- Precision Metering: The .076 orifice size ensures calibrated refrigerant flow for specific tonnage requirements.
- OEM Compatibility: Designed as a direct fit for Lennox HVAC equipment, eliminating the need for field modifications.
- Durable Construction: High-grade brass body resists corrosion and maintains tolerance under thermal cycling.
- System Reliability: Helps restore factory-spec efficiency and prevents premature compressor wear caused by improper refrigerant dosing.
Frequently Asked Questions
What is the purpose of the 0.076 orifice in this kit?
The .076 bore acts as a fixed metering device, creating the necessary pressure drop to transition high-pressure liquid refrigerant into a low-pressure saturated vapor before it enters the evaporator coil.
Can I use the 97M78 kit for both R-22 and R-410A systems?
While the physical fit may be identical, technicians must verify the load calculation and coil capacity. This piston-style metering device must match the specific BTU rating of the outdoor unit to prevent floodback.
Is this a substitute for a TXV?
No, this is a fixed RFC piston assembly. If the system was originally designed for a thermostatic expansion valve, switching to an orifice may significantly decrease seasonal efficiency ratios.
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.
