AHRI 1110 (SI/I-P): Performance Rating of Vapor Compression Transport Refrigeration Units

Standard Scope

AHRI 1110 establishes definitions, test requirements, rating requirements, minimum data requirements for published ratings, operating requirements, marking and nameplate data, and conformance conditions for vapor compression transport refrigeration units.


This standard applies to encased direct expansion vapor compression type vapor compression transport refrigeration units with the following components:



  • Compressor

  • Air-cooled condenser

  • Refrigerant flow control(s)

  • Forced-circulation air-cooler

  • Base or frame

  • Prime mover as described in the unit manufacturer's literature

  • Power train (including coupling, power take-off, transmission, and V-belt drive) connecting the unit to the prime mover

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