DISCONTINUED PRODUCT Precision Cooling For Business-Critical Continuity Liebert Challenger™ 3000 Technical Data Manual - Floor Mounted Systems, Nominal 3 & 5 Ton Systems, Air Cooled, Water/Glycol Cooled, GLYCOOL, Chilled Water, Split Systems, 50 & 60 Hz
NOTE Tables i, ii and iii show nomenclature for the complete range of all available product options. Not all combinations are possible. For assistance, contact your local dealer, Liebert representative or call 1-800-543-2778.
Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Unit configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Unit configurations, continued. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Microprocessor control systems . .
Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 13 Table 14
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For sensitive electronics, environmental control is more than simple cooling. “Comfort” air conditioning systems are designed for the comfort of people and simply cannot provide the kind of environment required by high performance computer or communication equipment. In short, today’s electronics need the same precision environmental control that mainframe computers need.
Data processing power is moving from the specialized environment of the computer room to the office and the factory floor. GLYCOOL is a patented Liebert process that can significantly reduce energy costs during periods of low outdoor ambient temperatures. At the same time, the applications are growing exponentially.
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Two levels of microprocessor control systems are available providing precise control and monitoring of the critical space. The Advanced Microprocessor is standard, and the Advanced Microprocessor with Graphics is optional. The main control functions are similar for both controls. • • • The user must enter a three-digit password before making changes. • • • • • • • • Temperature Setpoint 65-85°F (18-29°C)* Temperature Sensitivity +1-10°F (0.6-5.
• • • Individual plots of temperature, humidity and the four analog inputs. Bar graph plots of individual component run history by hour.
The frame, 14 gauge, MIG welded tubular and formed steel, provides maximum support while 1" (25.4mm) deep steel panels with 1-1/2 lb. (.68 kg) insulation protect and quiet the system. The front door can be opened for service without shutting off the system. All components are accessible for service/ maintenance through the front of the unit.
The chilled water cooling coil is designed for closedloop applications using properly maintained water. It is constructed of copper tubes and aluminum fins. Aframe coils are used on downflow units and V-frame coils are used on upflow units.
Two versions are available: 1. Self-Contained Systems 2. Split Systems The heart of the refrigeration system is the compressor. All self-contained evaporator units and split system condensing units contain a high efficiency, quiet operating scroll compressor. The compressors have internal vibration isolating mountings, pressure safety controls and built-in overload protection.
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The compressor pump-down control is accomplished by a liquid-line solenoid valve used in conjunction with a low pressure switch. The Lee-Temp winter control system’s heated receivers permit startup and positive head pressure control at ambient temperatures as low as -30°F (-34.4°C).
This unit is available in these optional configurations: • The centrifugal condensing unit may be connected to the evaporator section by means of pre-charged refrigeration lines (3 ton only). This greatly simplifies installation and keeps installation costs low.
A co-axial condenser provides ample capacity to handle the heat rejection needs of the system while using a minimum of liquid and low total pressure drop.
The Liebert manufactured drycooler is constructed of aluminum with a copper tube aluminum fin coil. The low profile design features multiple direct drive propeller type fans, balanced to the heat rejection load. An integral, factory wired and tested control panel reduces installation time. The Liebert GLYCOOL free-cooling system is integrated with a glycol cooled Challenger 3000.
The condensate pump, mounted in the bottom of most units, is used for condensate water only. The remote temperature/ humidity sensors permit monitoring room conditions from an external source. They are encased in an attractive case and are provided with a plug compatible shielded cable in virtually any length. Complete with sump, motor and pump assembly and automatic control.
NOTE Some options or combinations of options may result in reduced air flow. Consult factory for recommendations. The smoke detector senses the return air, shuts down the unit upon detection, and sends visual and audible alarm. Dry contacts are available for a remote customer alarm. This smoke detector is not intended to function as or replace any room smoke detection system that may be required by local or national codes.
You will find a full range of monitoring and control systems, communications modules designed to interface Liebert equipment with a variety of building management systems, plus stand-alone monitoring, control and leak detection devices. OpenComms Nform • • • SiteScan Web is a comprehensive critical systems monitoring solution dedicated to ensuring reliability through graphics, event management and data extrapolation.
SiteScan Web is a monitoring solution for critical environments that utilize a facility-view approach. The system enables communications from Liebert environmental and power units—as well as many other pieces of analog or digital equipment to a front end software package that provides monitoring, control and alarm management.
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The environmental control system shall be a Liebert Challenger 3000 factory assembled unit. Standard 60 Hz units shall be UL listed and CSA (NRTL-C) certified. It shall be specifically designed for service from the front of the unit. The system shall be designed for draw-through air arrangement to insure even air distribution to the entire face area of the coil.
Custom alarms are four customer accessible alarm inputs to be indicated on the front panel. Custom alarms can be identified with prepared (programmed) alarm labels for the following frequently used inputs: Water Under Floor Smoke Detected Standby GC Pump On Loss of Water Flow Standby Unit On User customized text can be entered for two of the four custom alarms.
Chilled Water/Hot Water/Econ-O-Coil Flush Cycles The optional Advanced control processor shall be microprocessor based with a front monitor dot matrix display panel and control keys for user inputs. The controls shall be menu driven with on-screen prompts for easy user operation. The system shall allow user review and programming of temperature and humidity setpoints, alarm parameters, and setup selections including choice of control type.
cally flush deposits from the humidifier pan. The system shall be field adjustable to change the cycle time to suit local water conditions. The humidifier shall have a capacity of _____ lbs/hr (kg/h). Common Alarm A programmable common alarm shall be provided to interface user selected alarms with a remote alarm device.
valve, filter drier, refrigerant sight glass and moisture indicator. The unit shall be supplied with a (2 way) (3 way) (4 way) (ducted) air discharge plenum. The plenum shall be 18 in. (457mm) high, insulated and powder painted the same color as the room unit. Pump Down Control A liquid line solenoid valve shall be provided for pump down control.
Piggyback Condenser (Optional) Hot Gas Reheat (Optional) The system shall be supplied with a piggyback condenser (PB). The condenser shall be constructed of steel with frame coated using the autophoretic® process, and panels powder coated to protect against corrosion. The coil shall be copper tube with aluminum fins. The heavy duty fan shall be the centrifugal type, double width, double inlet.
3-Way GLYCOOL Valve The GLYCOOL coil shall be equipped with a fully proportional 3-way control valve. This motorized control valve shall control the amount of flow to the GLYCOOL coil and maintain constant temperature and relative humidity. Glycol Condenser The glycol system shall be equipped with a coaxial condenser having a total pressure drop of _____ feet of water (kPa) and a flow rate of _____ GPM (l/s), with _____ °F (°C) entering 40% ethylene glycol temperature.
5-Ton Models (Optional) Disconnect Factory installed non-fused disconnect switch allows unit to be turned off for maintenance. 3-Ton Models The condensing module shall be capable of being connected to the evaporator section using pre-charged refrigerant line sets. No piping, brazing, dehydration, or charging shall be required. 5-Ton Models 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.
The cooling coil shall have a minimum of _____ sq. ft. (sq. m) face area, _____ rows deep. The coil shall be controlled by a modulating control valve. The chilled water coil shall be designed for closed-loop applications using properly maintained water. It shall be configured as an (A) (V) frame and be constructed of copper tubes and aluminum fins and have a maximum face velocity of _____ ft. per minute (m/s) at _____ CFM (CMH).
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Ensuring The High Availability 0f Mission-Critical Data And Applications. Emerson Network Power, the global leader in enabling business-critical continuity, ensures network resiliency and adaptability through a family of technologies—including Liebert power and cooling technologies—that protect and support business-critical systems. Liebert solutions employ an adaptive architecture that responds to changes in criticality, density and capacity.