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Trane VAL19939 Thermal Expansion Valve(TXV) R410A 3Ton 3/8" X 1/2"

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Special Price $144.00 Regular Price $165.59
In stock
SKU
VAL19939
The Trane VAL19939 is an essentialpart of the R410A refrigerant based HVAC systems that are considered to be standard in today’s homes. This Thermal Expansion Valve measuring 4” long is necessary for enhancing the system efficiency and preventing damage to your compressor. The valve is adapted for temperature sensing from the coil through the thermostatic actuator. If the coil is underfilled then there will be less cooling and if the coil is over filled then the compressor may get damaged. It has a 2.8% bleed design to control the flow of refrigerant and solid fixation through the male as well as brazed female connectors.
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HVAC Controls & Electrical, Valves
Manufacturer:
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Specifications

  • Weight: 0.67lbs
  • Length: 4"
  • Actuator Type: Thermostatic
  • Flow Control: 2.8% Bleed
  • Capacity: 3 (Ton)
  • Working Pressure: 200/86 (PSI)
  • Connection Type: Male, Female Brazed
Manufacturer Name: Trane
Product Number: VAL19939
OEM Part Number: VAL19939
Product Description: 3Ton 3/8" X 1/2" R410a Txv
Weight:0.67lbs/303.91g

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Product Questions (2)
Customer Questions
What maintenance is required for the Trane VAL19939 Thermal Expansion Valve?

Inspect the valve for leaks, blockages, or corrosion regularly. Ensure the capillary tube and connections are secure and properly positioned. Proper maintenance maintains consistent refrigerant flow and optimal system performance. Always depressurize the system before servicing.

What are common issues with the Trane VAL19939 Thermal Expansion Valve?

  • Fluctuating or improper flow rates.
  • Refrigerant leaks at fittings.
  • Valve sticking or sluggish response.
  • Improper refrigerant distribution affecting cooling efficiency.

Installation Steps

Step 1: Turn off HVAC system and disconnect power supply.

Step 2: Recover refrigerant safely using proper equipment.

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

Step 4: Install the new TXV, ensuring correct flow direction and tight fittings.

Step 5: Connect sensing bulb securely to suction line.

Step 6: Evacuate system and recharge with refrigerant.

Step 7: Restore power and test for leaks and proper operation.