Search results with tag "Variable refrigerant"
HVAC Variable Refrigerant Flow Systems - seedengr.com
www.seedengr.comVariable refrigerant flow (VRF) is an air-condition system configuration where there is one outdoor condensing unit and multiple indoor units. The term variable refrigerant flow refers to the ability of the system to control the amount of refrigerant flowing to the
Performance Rating of Unitary Air-conditioning & Air ...
www.ahrinet.orgAug 15, 2013 · 2.2.8 Variable Refrigerant Flow Air Conditioners and Heat Pumps as defined in AHRI Standard 1230 with capacities of 65,000 Btu/h and greater. 2.2.9 Single Packaged Vertical Units as defined in ANSI/AHRI Standard 390. Section 3. Definitions and Acronyms
CHAPTER 4. ENERGY USE CHARACTERIZATION TABLE OF …
www1.eere.energy.govwater-source variable refrigerant flow (VRF) equipment with a cooling capacity greater than 135,000 British thermal units per hour (Btu/h). These equipment types are described in separate subsections of this chapter, which detail the analysis and the determination of baseline annual per