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Lennox 11W02 0.073 RFC Kit

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Special Price $16.73 Regular Price $21.75
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SKU
11W02
The Lennox 11W02.073 RFC Kit is a specific part that is applied for precise gas furnace adjustment and service. This kit comes with the 073-inch Restrictor Field Control RFC aperture that controls the flow of gas to ensure the better combustion and utilization of the energy. The RFC kit is particularly applied in household and commercial Lennox gas furnaces for maintaining the air to fuel ratio and hence reducing the pollutants resulting from incomplete combustion. Since adopting the use of this kit several benefits can be highlighted as you are able to realize better heat outputs, comfortable temperatures experience and overall safety from enhanced control of the combustion aspect.
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Specifications

  • Weight:0.02lbs
  • Measure:Unit
  • Type:Piston Orifice Assembly Kit
  • Size:0.073"
Manufacturer Name: Lennox
Product Number: 11W02
OEM Part Number: 11W02
Product Description: .073 Rfc Kit
Weight:0.02lbs/9.07g

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Product Questions (2)
Customer Questions
What maintenance is required for the Lennox 11W02 RFC Kit?

Inspect the RFC kit regularly for refrigerant leaks, debris buildup, or damage to the piston orifice assembly that may affect refrigerant flow. Ensure the orifice and surrounding fittings remain clean and securely installed during HVAC servicing. Proper refrigerant charge verification helps maintain accurate metering and efficient system performance.

What are common issues with the Lennox 11W02 RFC Kit?

  • Clogged orifice causing restricted flow, performance drop, or system imbalance.
  • Inconsistent metering leading to heating or cooling fluctuations.
  • Worn seals resulting in leaks and pressure loss.
  • Installation misalignment causing operational instability or noise.

Installation Steps

Step 1: Shut off electrical power and recover refrigerant from the system before opening the refrigeration circuit.

Step 2: Access the indoor coil or distributor assembly and remove the liquid line connection carefully.

Step 3: Extract the existing piston/orifice from the distributor using the proper extraction tool.

Step 4: Install the new RFC kit in the correct flow direction and ensure the ring seats properly.

Step 5: Reconnect liquid line fittings tightly and verify all joints are sealed and clean.

Step 6: Evacuate the system, recharge with the correct refrigerant, and test superheat and cooling performance.