A Tennessee district faced an old school HVAC challenge: aging ventilators and space constraints. So this team tried a new-school variation on common VRF retrofits to deliver improved efficiency and critical IAQ: they decentralized the outdoor air, combining enthalpy wheel and VRF components within a single classroom enclosure.
Engineers retrofitting non-air conditioned schools to variable refrigerant flow (VRF) the last few years have relied on centralized packaged DOAS to comply with ASHRAE 62.1 outdoor air standards.
The Air Movement and Control Association (AMCA) is seeking technical committee members for the revision of AMCA Standard 500-L, Laboratory Methods of Testing Louvers for Rating.
Now that many of us are back from the annual ASHRAE and AHR Expo conference, our minds may be jangling from having seen an array of innovative technologies utilizing the cloud, smartphones, and demand automation.
Construction employment declined in 110 out of 358 metro areas between December 2015 and December 2016, according to the Associated General Contractors of America.