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Heatcraft SBFSE-B-Z 1-1/4 - 2-Ton Thermal Expansion Valve (TXV) 3/8" X 1/2" ODF

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Special Price $241.41 Regular Price $448.95
In stock
SKU
SBFSE-B-Z
The Heatcraft Refrigeration SBFSE-B-Z Thermal Expansion Valve is used, to control the flow of refrigerant, in refrigeration and air conditioning HVAC systems. It operates by detecting the evaporator temperature and pressure conditions and using the internal opening of the valve to regulate the flow entering the evaporator coil. The valve, which has a capacity range of 1-1/4 to 2 tons and 3/8" x 1/2" ODF connections, is incorporated, into the liquid line and evaporator inlet during system assembly. It assists in sustaining constant levels, of superheat and provides stable cooling performance.
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HVAC Controls & Electrical, Valves
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Product Questions (2)
Customer Questions
What maintenance is required for the Heatcraft SBFSE-B-Z Thermal Expansion Valve?

Inspect the valve regularly for leaks or blockages and clean surrounding debris. Ensure proper adjustment of the superheat setting for optimal performance. Proper maintenance prevents system inefficiencies and safeguards against refrigerant issues.

What are common issues with the Heatcraft SBFSE-B-Z Thermal Expansion Valve?

  • Improper superheat causing cooling inefficiency.
  • Refrigerant leaks at connections.
  • Sticking or sluggish valve operation.
  • Frosting or uneven cooling due to flow restrictions.

Installation Steps

Step 1: Turn off all power to the refrigeration system before installation.

Step 2: Recover refrigerant from the system following proper safety procedures.

Step 3: Remove the old TXV and clean the connecting lines.

Step 4: Install the new TXV in the correct orientation, connecting ODF lines.

Step 5: Securely tighten all fittings and ensure the sensing bulb is properly attached.

Step 6: Evacuate and recharge the system, restore power, and verify proper cooling operation.