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www.fueloilnews.com | FUEL OIL NEWS | FEBRUARY 2017 33 turer, Portland, Ore.-based Ventacity Systems. Its systems combine intelligent heat recovery ventilation with a secure, private cloud network, as well as monitoring and management services to remotely control IAQ in real-time while reducing the HVAC system energy load, the company says. Sal D'Auria, president and CEO of Ventacity Systems, says that deploying cutting-edge technologies to the HVAC industry "can conserve energy while making the building environment healthier and more comfortable for occupants." Ventacity has developed products that optimize building environments in a wide array of light commercial applications, including office buildings, retail, schools, restaurants and multi-family. Operating at up to 93% efficiency, Ventacity's intelligent HRV's deliver fresh outdoor air within a comfortable few degrees of room temperature, reducing heating and cooling loads and HVACR equipment energy requirements by up to 50%. Engineered to Passive House Institute U.S. (PHIUS) standards for a long life of high performance in harsh outdoor environments, Ventacity Systems HRVs can be installed on rooftops, outdoors or in mechanical rooms. Ventacity's Smart Building Gateway provides continuous ventilation manage- ment system monitoring from any internet connection. Via the SBG, facilities managers and contractors can gain instant, live access to all air quality parameters, and immediately determine whether the ventilation management system is operat- ing at optimal efficiency and maintaining healthy IAQ. Operational settings can be easily adjusted from any internet-enabled device to accommodate unexpected variances such as high building occupancy, or drastic shifts in outdoor temperatures or relative humidity. Additionally, determination of whether or not onside ventila- tion management system maintenance is required can be achieved remotely via the SBG, saving on unnecessary service calls. ASHRAE PUBLISHES LATEST REFRIGERANT STANDARDS The 2016 editions of ASHRAE's major refrigerants-related standards have been published as a package with 30 new refrigerants and refrigerant blends added. ANSI/ASHRAE 15, Safety Standard for Refrigeration Systems, and its sister standard, ANSI/ASHRAE 34, Designation and Safety Classification of Refrigerants, constitute a complete set of requirements for the safe design, construction and application of refrigeration systems used in a wide variety of residential, commercial and industrial applications. For both of the standards, the updates come from a continuing stream of changes made based on new science and research, experience, and proposals from designers, manufacturers and users. The 2016 edition of Standard 15 incorporates addenda a, b, c, e and g to Standard 15-2013, which comprise the following changes: Incorporated changes to ensure improvement in the safe design, construction, installation and operation of refrigeration systems Updated requirements for safety relief systems, including revisions to relief vent pipe discharge locations and design provisions for headered relief vent systems Updated design pressure requirements applicable to systems using carbon dioxide Modified overpressure protection for heat exchangers and pressure limiting devices for positive displacement compressors The 2016 edition of Standard 34 incorporates 35 addenda to the 2013 edition. Among the key changes to the 2016 edition are the following: Added three new refrigerants and 27 new refrigerant blends