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Nordyne 664348 Thermal Expansion Valve R-410A TR6

Special Price $117.09 Regular Price $134.66
In stock
SKU
664348
The Nordyne 664348 Thermal Expansion Valve is very essential for HVAC systems which are made to use R-410A refrigerant. It functions like a regulation device and it controls the movement of refrigerant towards the evaporator coil. This allows room temperature of coolant changes its opening in order to have heat transfer and energy conservation done properly. The valve is often applied in cooling and heating devices in order to enhance energy efficiency and comfort while improving performance. Some of its main advantages include precise regulation of refrigerant, enhanced capacity for cooling, thereby resulting in reduced electrical energy consumption.
Manufacturer:
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Specifications

  • Type: Thermal Expansion Valve
  • Refrigerant: R-410A
  • Material: Bronze
Manufacturer Name: Nordyne
Product Number: 664348
OEM Part Number: 664348
Product Description: Tr6 R410a Txv Outdoor Valve
Weight:0.79lbs/358.34g

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Customer Questions
What maintenance is required for the Nordyne 664348 Thermal Expansion Valve?

Inspect the sensing bulb placement and ensure it is securely attached to the suction line with proper insulation. Check refrigerant connections for leaks or looseness to maintain stable operation. Keep external components clean and verify proper positioning for consistent superheat control.

What are common issues with the Nordyne 664348 Thermal Expansion Valve?

  • Incorrect refrigerant flow causing poor cooling performance.
  • Sticking or restricted valve operation leading to pressure imbalance.
  • Faulty sensing bulb placement affecting superheat control.
  • Refrigerant underfeeding or overfeeding the evaporator coil.
  • System cycling issues due to unstable expansion control.

Installation Steps

Step 1: Disconnect power and recover the refrigerant from the system.

Step 2: Access the evaporator coil and remove the existing expansion valve.

Step 3: Install the new valve and connect the refrigerant lines.

Step 4: Secure the sensing bulb to the suction line and insulate it.

Step 5: Braze connections while protecting the valve from excessive heat.

Step 6: Evacuate the system, recharge with refrigerant, restore power, and test operation.