Mechanical · M-86D3R

VRF System Refrigerant Piping Schematic and Calculations

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This mechanical schematic details the refrigerant distribution layout connecting outdoor condensing units ARUM312DTE5, ARUM096DTE5, and ARUM216DTE5 to multiple indoor fan coil units across Level 4. The main liquid and gas lines branch through ARBLB07121 and PRHR043A header units utilizing varying pipe diameters from 3/8 inch to 1-1/8 inch with specified run lengths. Each connected fan coil unit, including models ARNU363M2A4, ARNU153M2A4, ARNU183M2A4, ARNU243M2A4, and ARNU483M3A4, is designated with individual cooling capacities and specific branch piping lengths. The total additional refrigerant charge for the system is calculated at 41.06 lbs.

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