Air-Conditioning, Heating, and Refrigeration Institute (AHRI) has
launched three new certification programs.
AHRI’s 39th certification program is for unit coolers, which are typically utilized in refrigerated warehouses. The equipment in the Unit Coolers Certifi cation Program is rated and tested in accordance with AHRI Standard 420, Performance Rating of Forced-Circulation Free-Delivery Unit Coolers for Refrigeration. Unit coolers are factory-made, and include means for forced air circulation and elements by which heat is transferred from air to refrigerant without any air resistance from external elements. The certified ratings for the unit coolers program include cooling capacity and rated fan power. This program applies to production models of Unit Coolers, which meet the following criteria:
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