Liebert Challenger 3000 with iCOM

Installation (Applicable to all Models)2.5 Piping ConsiderationsAll piping below the elevated floor must be located so that it offers the least resistance to air flow.Careful planning of the piping layout under the raised floor is required to prevent the air flow frombeing blocked. When installing piping on the subfloor, it is recommended that the pipes be mounted ina horizontal plane rather than stacked one above the other. Whenever possible, the pipes should berun parallel to the air flow.Condensate pumps for downflow units are shipped separately to be field-installed under the raisedfloor. Pump height is 11 inches (279 mm).2.5.1 Drain LineA 3/4" (19.1 mm) female pipe thread (FPT) connection is provided for the evaporator coil condensatedrain. This drain line also drains the humidifier, if applicable. The drain line must be located so it willnot be exposed to freezing temperatures. The drain should be at least the full size of the drainconnection and pitched a minimum of 1/8" per ft. (11 mm per meter).NOTEThis line may contain boiling water. Select appropriate drain system materials.The drain line must include one and only one trap. Units without a condensate pump have afactory-supplied trap in the unit, so a field trap should not be added. Units with a condensatepump will require a field-supplied trap downstream from the pump. The drain line mustcomply with all applicable codes.Table 2 Piping connection sizeAir-Cooled Unit Connection Sizes—in.Model No. BF/BU(50 Hz)Liquid Line O.D. CopperLHot Gas Line OD CopperHG042A (040A) 3/8 5/8067A (065A) 1/2 7/8Split System Fan Coil Unit Connection Sizes—in.Model No. BF/BU (50 Hz)Liquid LineLSuction LineSC036E (035E) 5/8 - 18 Female (#6 QC) 1-1/8 - 12 Female (#11 QC)060E (059E) 1/2 OD Cu 1-1/8 OD CuAll Units: Connection Sizes—in.Humidifier LineOD CopperHCondensateDrain LineCCondensate Pump LineOD CopperP1/4 3/4 FPT 1/2Water/Glycol-Cooled Unit Connection Sizes—inchesModel No. BF/BU(50 Hz)Supply LineSReturn LineR046WG (045WG) 7/8 7/8071WG (070WG) 1-1/8 1-1/8GLYCOOL Unit Connection Sizes —in.Model No. BE/BK(50 Hz)Supply LineSReturn LineR061G (058G) 1-1/8 1-1/8Chilled Water Unit Connection Sizes—in.Model No. BF/BU(50 Hz)Supply LineCWSReturn LineCWR068C (072C) 1-1/8 1-1/8102C (101C) 1-1/8 1-1/8Hot Water ReheatOD CopperSupply ReturnHWS HWR5/8 5/89