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Reznor 258319 Varidigm Control Board

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Special Price $1,110.22 Regular Price $1,232.35
In stock
SKU
258319

The Reznor 258319 Varidigm Control Board powers certain Reznor HVAC equipment, such as gas furnaces, air conditioners, and packaged heating and cooling units. This essential part serves as the focal point of the system, keeping an eye on, controlling, and refining its many operations to guarantee effective and secure functioning. Envision a sophisticated circuit board overseeing your complete HVAC system. While it is made especially for Reznor equipment that is compatible, the 258319 functions in a similar manner. Prior to buying the 258319, it is imperative that you check the model number of your Reznor equipment, study the handbook, or speak with a licensed HVAC professional. For best results and safety, they can guarantee compatibility and appropriate installation.

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HVAC Control Board Parts, HVAC Controls
Manufacturer:
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Manufacturer Name: Reznor
Product Number: 258319
OEM Part Number: 258319
Product Description: Varidigm Control Board
Weight:2.41lbs/1093.16g

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Product Questions (3)
Customer Questions
How to install an expansion valve for refrigeration?

Thermostatic expansion valves are an integral part of your refrigeration unit. They are responsible for ensuring the right dosage of refrigerant is entering the cooling coil to ensure maximum efficiency in the air conditioning of the system.    These special expansion valves come with a temperature sensor that is mounted at the end of the evaporator coil. They incorporate signals from this sensor to maintain the required temperature of the HVAC system. The thermostatic expansion valve works like a precision device that can regulate the measurements of the liquid refrigerant that flows into the evaporator of your system. This regulation in the flow of the refrigerant is essential to prevent the reverse flow of the refrigerant into the compressor of your system.    Through this mechanism, the thermostatic expansion valve successfully separates the high and low pressure sides of the refrigeration/air conditioning system. The liquid refrigerant enters the expansion ...

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What maintenance is required for the Reznor 258319 Varidigm Control Board?

Regularly inspect the control board for dust buildup and loose connections, ensuring secure wiring and proper voltage supply. Keep the unit dry and protected from moisture. Periodic electrical checks help maintain stable operation and prevent control failures in HVAC systems.

What are common issues with the Reznor 258319 Varidigm Control Board?

  • Power supply failures.
  • Overheating due to poor ventilation.
  • Loose or damaged wiring.
  • Sensor signal misreads.

Installation Steps

Step 1: Turn off HVAC power at breaker and apply lockout/tagout for safety.

Step 2: Remove access panel from the unit carefully.

Step 3: Document existing wiring or take clear reference photo before removal.

Step 4: Disconnect old control board wiring harnesses and label connections.

Step 5: Mount new control board securely using original screws.

Step 6: Reconnect wiring per diagram, ensuring correct terminal placement.

Step 7: Restore power and test system operation for proper operations.