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EPeople and ideas you can 2014 Daikin Applied Variable Refrigerant Flow 101-Bill ArtisPageYour Presenters 2014 Daikin Applied 2 Bill Artis LEED AP BD+CBusiness DevelopmentDaikin NYASHRAE LI Member, BOGASHRAE TC Member Guideline 41 Project Committee: VRF Design, Installation, and Commissioning Handbook: Systems and Equipment 2016 Variable Refrigerant Flow , ch18~10yrs in HVAC Resources: ASHRAE Handbook: 2016 Systems and Equipment, ch18 Variable Refrigerant Flow VRF Design and Application Webinar- ASHRAE Learning Institute (spring)PageAgenda Review system Types and Architecture Describe Basic Sequence of Operations Discuss design and application considerations for equipment, piping, and airside. Introduction to the Dark Side of ASHRAE 2014 Daikin Applied 3 PageVRF Architecture & system Types 2014 Daikin Applied 4 PageVRF Overview + Architecture Indoor(fan coil)unit(s)connectedtoan outdoor(condensing)unit Up to64unitsonasingle refrigerantpiping network One-One configurations Availableineitheraircooled orwatercooled heat Pump or heat RecoveryVRFC onceptVRFO verview Developed in 1982 ~5% Market Share in NA Expected to reach ~$10,251MM in 2019 PageNote:Unitsare notforcedinto heatingorcoolingIfdemandisnotrequireda FCUwillgoontofan onlyHeat PumpSeriesWhole systemisin coolingORheatingmodePageHeat RecoverySeriesThesystemcancoolANDheatsim ultaneouslyThe systemwill ALSO provideaHeat RecoveryProcessPageHeat

Page Sequence of Operations- Mode Changeover Heat Pump • Entire system is either in cooling or heating mode • Indoor unit will operate in “Fan Only” when there is no demand

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  System, Pumps, Refrigerant, Heat, Flows, Variable, Heat pump, Cooling, Variable refrigerant flow 101

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