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York S1-02544172000 Thermo Expansion Valve 3/8" X 5/8" ODF 90 PSI

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Special Price $327.78 Regular Price $660.95
In stock
SKU
S1-02544172000
The York S1-02544172000 Thermal Expansion Valve is used in air conditioning operation to the flow liquid refrigerant into the evaporator coil, depending on the temperature and pressure readings at the outlet of the evaporator in HVAC systems. It has 3/8" by 5/8" ODF connections with a 90 PSI rating, connecting it to the refrigerant liquid line and evaporator inlet which allows controlled refrigerant as it enters the evaporator. It assists in ensuring stable cooling cycles, and equal heat absorption. It reacts to the internal valve opening to allow a balanced flow of refrigerant.
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HVAC Controls & Electrical, Valves
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Product Questions (2)
Customer Questions
What maintenance is required for the York S1-02544172000 Thermo Expansion Valve?

Regularly inspect the valve for leaks, debris, or corrosion. Ensure tubing connections are tight and unobstructed. Proper maintenance ensures accurate refrigerant flow, stable system pressure, and optimal cooling performance.

What are common issues with the York S1-02544172000 Thermo Expansion Valve?

  • Refrigerant leaks at fittings.
  • Restricted or inconsistent flow through the valve.
  • Valve sticking or slow operation.
  • Erratic evaporator cooling performance.

Installation Steps

Step 1: Turn off power and recover refrigerant following safety guidelines; wear gloves and goggles.

Step 2: Locate the existing TXV on the evaporator coil and carefully disconnect tubing.

Step 3: Remove the old valve and clean the connection points.

Step 4: Install the new TXV, ensuring proper orientation and secure ODF connections.

Step 5: Evacuate the system and recharge refrigerant to manufacturer specifications.

Step 6: Restore power and test for proper cooling and flow.