Lennox 11W97 Service Valve
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Lennox 11W97 Service Valve

Lennox 11W97 Service Valve

The Lennox 11W97 Service Valve is a critical liquid line service valve designed for precision refrigerant management in residential and light commercial HVAC units. Engineered as a genuine Lennox OEM replacement part, this bar-stock service valve features a front and back seating design, allowing technicians to isolate the system charge or access the refrigerant service port without total recovery of the system. This 3/8-inch valve ensures smooth flow regulation and is compatible with numerous Lennox air conditioners and heat pumps, including series such as 2AC13, 2HP13, and TSA*S4. Its durable body is built to withstand the high-pressure environments of HFC-410A refrigerant systems, maintaining a tight knife-edge seal when backseated for reliable long-term performance. Proper installation of this 3/8 liquid line valve is essential for maintaining system integrity during routine maintenance or part replacement, ensuring the outdoor unit remains 0 psig safe before opening the circuit.

Key Benefits
  • OEM Compatibility: Guaranteed fit for Lennox and Armstrong units, ensuring specific torque and seating requirements are met.
  • Dual Seating Design: Allows for total isolation of the indoor coil or outdoor unit when front-seated, or gauge access when back-seated.
  • High-Pressure Durability: Rated for modern high-pressure refrigerants, preventing leaks at the stem and service port.
  • Critical Flow Control: Maintains optimal liquid line velocity to prevent pressure drops that can affect expansion valve performance.
Common Questions

Is a Schrader valve included with the 11W97?

No, this model is a backseating style valve and does not typically come with a pre-installed internal Schrader core. The valve must be fully backseated to isolate pressure from the service port before removing the port cap or connecting gauges.

What wrench is required for the valve stem?

Proper operation requires a standard HVAC service wrench (typically 5/16" hex or suitable refrigeration wrench). Using a standard adjustable wrench on the stem can strip the flats and prevent proper seating.

Can this valve be used on the suction line?

While the 11W97 is specifically cataloged as a liquid line service valve, its construction allows it to handle the pressure ranges of a liquid line. Always verify the line size (3/8") before attempting installation on anything other than the liquid side.

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.

$49.22

Original: $140.63

-65%
Lennox 11W97 Service Valve

$140.63

$49.22

Lennox 11W97 Service Valve

The Lennox 11W97 Service Valve is a critical liquid line service valve designed for precision refrigerant management in residential and light commercial HVAC units. Engineered as a genuine Lennox OEM replacement part, this bar-stock service valve features a front and back seating design, allowing technicians to isolate the system charge or access the refrigerant service port without total recovery of the system. This 3/8-inch valve ensures smooth flow regulation and is compatible with numerous Lennox air conditioners and heat pumps, including series such as 2AC13, 2HP13, and TSA*S4. Its durable body is built to withstand the high-pressure environments of HFC-410A refrigerant systems, maintaining a tight knife-edge seal when backseated for reliable long-term performance. Proper installation of this 3/8 liquid line valve is essential for maintaining system integrity during routine maintenance or part replacement, ensuring the outdoor unit remains 0 psig safe before opening the circuit.

Key Benefits
  • OEM Compatibility: Guaranteed fit for Lennox and Armstrong units, ensuring specific torque and seating requirements are met.
  • Dual Seating Design: Allows for total isolation of the indoor coil or outdoor unit when front-seated, or gauge access when back-seated.
  • High-Pressure Durability: Rated for modern high-pressure refrigerants, preventing leaks at the stem and service port.
  • Critical Flow Control: Maintains optimal liquid line velocity to prevent pressure drops that can affect expansion valve performance.
Common Questions

Is a Schrader valve included with the 11W97?

No, this model is a backseating style valve and does not typically come with a pre-installed internal Schrader core. The valve must be fully backseated to isolate pressure from the service port before removing the port cap or connecting gauges.

What wrench is required for the valve stem?

Proper operation requires a standard HVAC service wrench (typically 5/16" hex or suitable refrigeration wrench). Using a standard adjustable wrench on the stem can strip the flats and prevent proper seating.

Can this valve be used on the suction line?

While the 11W97 is specifically cataloged as a liquid line service valve, its construction allows it to handle the pressure ranges of a liquid line. Always verify the line size (3/8") before attempting installation on anything other than the liquid side.

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

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Description

The Lennox 11W97 Service Valve is a critical liquid line service valve designed for precision refrigerant management in residential and light commercial HVAC units. Engineered as a genuine Lennox OEM replacement part, this bar-stock service valve features a front and back seating design, allowing technicians to isolate the system charge or access the refrigerant service port without total recovery of the system. This 3/8-inch valve ensures smooth flow regulation and is compatible with numerous Lennox air conditioners and heat pumps, including series such as 2AC13, 2HP13, and TSA*S4. Its durable body is built to withstand the high-pressure environments of HFC-410A refrigerant systems, maintaining a tight knife-edge seal when backseated for reliable long-term performance. Proper installation of this 3/8 liquid line valve is essential for maintaining system integrity during routine maintenance or part replacement, ensuring the outdoor unit remains 0 psig safe before opening the circuit.

Key Benefits
  • OEM Compatibility: Guaranteed fit for Lennox and Armstrong units, ensuring specific torque and seating requirements are met.
  • Dual Seating Design: Allows for total isolation of the indoor coil or outdoor unit when front-seated, or gauge access when back-seated.
  • High-Pressure Durability: Rated for modern high-pressure refrigerants, preventing leaks at the stem and service port.
  • Critical Flow Control: Maintains optimal liquid line velocity to prevent pressure drops that can affect expansion valve performance.
Common Questions

Is a Schrader valve included with the 11W97?

No, this model is a backseating style valve and does not typically come with a pre-installed internal Schrader core. The valve must be fully backseated to isolate pressure from the service port before removing the port cap or connecting gauges.

What wrench is required for the valve stem?

Proper operation requires a standard HVAC service wrench (typically 5/16" hex or suitable refrigeration wrench). Using a standard adjustable wrench on the stem can strip the flats and prevent proper seating.

Can this valve be used on the suction line?

While the 11W97 is specifically cataloged as a liquid line service valve, its construction allows it to handle the pressure ranges of a liquid line. Always verify the line size (3/8") before attempting installation on anything other than the liquid side.

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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