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Bard 8602-064BX - Solid State Enthalpy Sensor

The Bard 8602-064BX solid state enthalpy sensor is an OEM control input used on select Bard wall mounted HVAC and ventilation applications to help the unit make proper economizer or ventilation decisions based on the heat content of the air. When an enthalpy sensor drifts or fails, the system may bring in too much outdoor air or lock out free cooling, so replacing it with the correct Bard part helps restore stable operation and correct control logic. This Bard 8602-064BX sensor is designed to match factory wiring and control expectations, and it is commonly listed as a replacement for Bard part 8602-064, so confirming your unit model and the existing sensor style before ordering is recommended.


  • Technical Specifications
  • Product number: 8602-064BX
  • Manufacturer description: Enthalpy Sensor Solid State-Bx
  • Weight: 0.450 lbs
  • HTS Code: "9032.89.6075"

  • Previous Versions
  • 8602-064 (Obsolete, superseded by 8602-064BX)
  • 8602-046 (Obsolete, superseded by 8602-064)

$305.00

What does the "BX" suffix mean?

Bard uses suffixes like "BX" to manage parts internally. These do not change the physical form or function of the part.

A part number ending in "BX" simply means it is packaged in a box for shipping, rather than for internal assembly use.

Example: 8406-142BX is physically identical to 8406-142.