Liebert® Challenger™ 3000 with Liebert iCOM® - Emerson Network ...

2.4.1 Air-Cooled Split SystemsCentrifugal Fan Condensing UnitGuide Specifications—Nominal 3 or 5 ton Environmental Control SystemThe condenser coil shall be constructed of copper tubes and aluminum fins. The condensing unit shallbe factory-assembled, charged with refrigerant and sealed.Components shall include a standard scroll compressor, high-pressure switch, Liebert Lee-Temprefrigerant receiver, head pressure control valve and liquid line solenoid valve.The condensing unit shall be designed for 95°F (35°C) ambient and be capable of operation to-30°F (-34°C) ambient.A hot gas bypass circuit shall be provided to reduce compressor cycling and improve operation underlow load conditions.The condenser fan shall be designed for _____ CFM (CMH) at _____ inches (mm) external staticpressure.Disconnect (Optional)A factory-installed non-fused disconnect switch shall allow the unit to be turned Off for maintenance.3-Ton ModelsThe condensing module shall be capable of being connected to the evaporator section using prechargedrefrigerant line sets up to 60 ft. (18.25m) of total length, maximum or two line sets in series.No brazing, dehydration, or charging shall be required. The fan/motor assembly shall be direct drive.5-Ton ModelsThe fan/motor assembly shall be belt drive. Condensing unit must be hard piped with the evaporator.Sweat adapters are shipped loose with all 5 ton evaporators for use on the 5 ton condensing units.Propeller Fan Condensing UnitThe condenser coil shall be constructed of copper tubes and aluminum fins with a direct drivepropeller type fan and shall include a standard scroll compressor, high pressure switch, Liebert Lee-Temp receiver, head pressure control valve, and liquid line solenoid valve. All components shall befactory-assembled, charged with R407C refrigerant and sealed. No brazing, dehydration, or chargingshall be required. Condensing unit shall be designed for 95°F (35°C) ambient and be capable ofoperation to -30°F (-34.4°C).A hot gas bypass circuit shall be provided to reduce compressor cycling and improve operation underlow load conditions.Quiet-Line Models (Optional)The condensing unit shall be designed to operate at a sound level less then 58 dBa.High Ambient Models (Optional)The outdoor condensing unit shall be designed for design ambient operation of 105°F (40.6°C).3-Ton ModelsThe condensing module shall be capable of being connected to the evaporator section using prechargedrefrigerant line sets up to 60 ft. (18.25m) of total length, maximum or two line sets in series.No brazing, dehydration, or charging shall be required.5-Ton ModelsCondensing unit must be hard piped with the evaporator. Sweat adapters are shipped loose with all5-ton evaporators for use on the 5-ton condensing units.64