Various areas of the U.S. HVACR industry are considering variable refrigerant flow (VRF) technology these days. For example, ASHRAE added a chapter on VRF systems in the 2012 edition of the ASHRAE handbook, “HVAC Systems and Equipment.” According to ASHRAE, the chapter describes VRFs and standards that apply to them in detail “and includes a system design example and important guidance on costs, controls, and safety.”
It’s not just the HVAC industry that is taking notice of VRFs, though. The U.S. government’s General Services Administration (GSA), through the Green Proving Ground (GPG) program is looking at VRF technology in addition to other HVAC and energy management technologies.