

AHRI Announces Updated USE Operations Manual Availability
November 29, 2019
November 29, 2019
The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) has announced that the Unitary Small Equipment Operations Manual (USE OM) has been updated to include provisions for unitary small air conditioner and heat pump equipment to rate with T1, T2, T3, H1, H2, and H3 international rating conditions. The USE OM is available free on the AHRI website.

