Samsung RD080HRXGB Installation Manual

Also see for RD080HHXG* Series: Service manual

Contents

18_ installing the unitinstalling the unitREFRIGERANT PIPING WORKSPipe selection for DVM PLUS IV HROutdoor unit connection pipe size : (A1), (A2), (A3) Branch joint : (D), (E), (F)A1 : Select the pipes according to the outdoorunit capacity with following table.A2 : Select the pipes according to sum ofoutdoor unit capacities behind the outdoorjoint with following table.A3 : Select the main pipe of outdoor units withthe following table.*A1 : Pipes to the outdoor unit (Liquid, Gas, High pressure gas)*A2 : Pipes between outdoor joint kits(Liquid, Gas, High pressure gas)*A3 : Main pipes (Liquid, Gas, High pressure gas)Pipe size between branch joints : (B)Select the pipe size according to the capacity sum ofindoor units which are connected below this pipe.Pipe size between branch joints and indoor unit : (C)Select the pipe size according to the indoorunit’s capacity.12HP 14HPOutdoorunitPipe size (O.D. mm), (A) Oilbalancingpipe sizeLiquid Gas Highgas8HP Ø9.52 Ø19.05 Ø15.88Ø6.3510HP Ø22.23 Ø19.0512HPØ12.70 Ø25.40 Ø22.2314HP16HPØ28.5818HPØ15.88 Ø25.4020HP22HP24HP26~30HPØ19.05 Ø31.75 Ø28.5832~34HP36~48HP Ø38.10 Ø31.7550~60HP Ø22.23 Ø44.45 Ø38.10 Branch joint of outdoor unit’s multiconnection (D)Model Capacity ofoutdoorLiquid & Lowgas pipeMXJ-T3819 Below 48 HPMXJ-T4422 Above 50 HPHigh gas pipe MXJ-T3100 Below 48 HPMXJ-T3800 Above 50 HP First branch joint (E)Select branch joint according to outdoorunit’s capacity.Liquid& LowpressuregasY-joint(E)Outdoor unit Model8~14HP MXJ-YA251216HP MXJ-YA281218~24HP MXJ-YA281526~34HP MXJ-YA311936~48HP MXJ-YA381950~60HP MXJ-YA4422Indoor unit’scapacityPipe size (O. D. mm)Liquid Gas2.2~5.6kW Ø6.35 Ø12.707.1~14.0kW Ø9.52 Ø15.8816HPTotal indoor unit’scapacityPipe size (O.D. mm)Liquid Gas Highgas15.0kW and belowØ9.52Ø15.88 Ø15.88Over 15.0~23.2kW and below Ø19.05Over 23.2~29.0kW and below Ø22.23 Ø19.05Over 29.0~40.6kW and below Ø12.70 Ø25.40 Ø22.23Over 40.6~46.4kW and below Ø28.58Over 46.4~69.6kW and below Ø15.88 Ø25.40Over 69.6~98.6kW and below Ø19.05 Ø31.75 Ø28.58Over 98.6~139.2kW and below Ø38.10 Ø31.75Over 139.2kW Ø22.23 Ø44.45 Ø38.10HighpressuregasY-joint(E)Outdoor unit Model8HP MXJ-YA150010~24HP MXJ-YA250026~48HP MXJ-YA310050~60HP MXJ-YA3800 Branch joint (F)Liquid& lowpressuregasY-joint(F)Model Total indoor unit’scapacityMXJ-YA1509 15.0kW and belowMXJ-YA2512 Over 15.0~40.6kW and belowMXJ-YA2812 Over 40.6~46.4kW and belowMXJ-YA2815 Over 46.4~69.6kW and belowMXJ-YA3119 Over 69.6~98.6kW and belowMXJ-YA3819 Over 98.6~139.2kW and belowMXJ-YA4422 Over 139.2kWHighpressuregasY-joint(F)Model Total indoor unit’scapacityMXJ-YA1500 23.2kW and belowMXJ-YA2500 Over 23.2~69.6kW and belowMXJ-YA3100 Over 69.6~139.2kW and belowMXJ-YA3800 Over 139.2kW(C)(F)(D)(A3)(A2)(A1)• Example) 42HP of compactcombinationsHP MarkPipe size(O. D.mm)Liquid Lowgas Highgas12 (A1) Ø12.70 Ø25.40 Ø22.2314 (A1) Ø12.70 Ø25.40 Ø22.2316 (A1) Ø12.70 Ø28.58 Ø22.2326 (A2) Ø19.05 Ø31.75 Ø28.5842 (A3) Ø19.05 Ø38.10 Ø31.75(A1)(A1) (E)(B)The sum of the total capacity of the indoor units connected to a MCU should not be overthe max. 44.8kW.CAUTION