VI-7INSTALLATIONOil trapAllowable pipe lengthfrom the first branch tothe farthest indoor unitHigh pressure gas pipeconnection for HRoutdoor modules(HR only)Newadditional jointsHigh pressure gasconnection for HR MCU(HR only)MCU(HR system)Additional refrigerantcharging(HR system)Maximum connectableindoor units 64 indoor units 48 indoor unitsMax. piping length 200m90m(If the pipe length between the first branch to the farthest indoor unitis over 45 m, the pipe size has to be increased 1size.)Y-joint (Optional products)T-joint (Field available)45m---170mInterface module MIM-B13A MIM-B13AVX✳✳✳000EE AVX✳✳✳000EA, EB,ECMCCB, ELB,Power cableConnectable indoor unitsEx) 12HP Ex) 12HPDVM PLUS III, DVM PLUS III HR DVM PLUS II, DVM HR II• When the piping length between the outdoorunits is 2m or more, a vertical trap has to beinstalled like above diagram.◆ High pressure gas pipe : brazing type❈ Model: MXJ-YA1500/YA2500MXJ-YA3100/YA3800Less than 1m200~300mmNo vertical trapNo vertical trap2m or moreMCU-4EAE1MCU-4EAEV1MCU-6EAE1◆ High pressure gas pipe : Flare typeMCU-4EAEMCU-4EAEVMCU-6EAEType Model Outdoor unit capacityOutdoor joint MXJ-T3100K below 48HPMXJ-T3800K Above 50HpType ModelOutdoor joint MXJ-T4422KY-joint MXJ-YA2812KAdditional Refrigerant Charging of MCU Kit (kg/unit)Additional refrigerant charging of MCU is0.5kg for every MCU kit. 0.5HP MCCB(A) ELB12 40 40A, 30mA, 0.1second or lessHP MCCB(A) ELB12 35 40A, 30mA, 0.1second or less❈ For more detail information about installation, refer to installation manual.06_Installation(02~45) 3/15/08 4:34 Page 7