Liebert Challenger 3000

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1.2 Start-Up ProcedureIntroductionBefore beginning start-up, make certain that unit was installed according to the instructions in theInstallation Manual. Verify that the fan shipping bolt has been removed, the check valve has beeninstalled (on air cooled units), and that the scroll compressor is rotating in the proper direction. Allexterior panels must be in place with the front panel open.Locate the start-up form supplied with your unit documents. Complete the form during your start-upand mail it to Liebert when start-up is completed. Contact your Liebert supplier if you have any questionsor problems during your unit installation, start-up, or operation.!WARNINGPotentially lethal voltages exist within this equipment during operation. Observe all cautionsand warnings on unit and in this manual. Failure to do so could result in serious injury ordeath. Only qualified service and maintenance personnel should work with this equipment.1. Disconnect all power to the environmental control unit.2. Tighten all electrical wiring connections that may have loosened during shipping (on electricpanel and at all major components, such as compressor, reheats, humidifier and motor).3. Remove all line voltage fuses except the main fan fuses at the far right of the electric panel andthe Control Voltage fuses at the far left of the electric panel. For units supplied with circuitbreakers, open them instead of removing fuses.4. Turn on power and check line voltage on main unit disconnect switch. Line voltage must bewithin 10% of nameplate voltage.5. Turn ON main unit disconnect switch and check secondary voltage at transformer T1. Voltage atT1 must be 24 VAC ±2.5 VAC (check at TB1-1 and TB1-8). T1 voltage must not exceed 28 VAC.Change primary tap if necessary.6. Push ON button. Blower will start.7. If you do not want your unit to operate at factory default settings, set temperature and humiditysetpoints and sensitivity, alarms, and other control functions. Refer to 2.0 - Operation withAdvanced Microprocessor Controls or 3.0 - Operation with Advanced Microprocessorwith Graphics Control.8. Stop unit by depressing ON/OFF button on the front display. Turn OFF main unit disconnect andmain breaker.9. Replace all fuses (or reset circuit breakers) that were removed in Step 3.10. Restore power to unit; turn ON the main unit disconnect switch.11. Push ON button - putting the unit into operation.12. Check the current draw on all line voltage components and match with serial tag.13. Verify that the scroll compressor is rotating in the proper direction.!CAUTIONThe scroll compressor must rotate in the proper direction. Rotation in the wrong directionwill result in poor performance and compressor damage.14. Check for unusual noises and vibration.15. Check all refrigerant and fluid lines for leaks.16. Test all functions of your unit for proper operation.17. Close high voltage dead front cover and latch.18. Close front accent panel and latch.Return completed start-up form to:Liebert CorporationWarranty Registration1050 Dearborn DriveP.O. Box 29186Columbus, OH 432292
2.0 OPERATION WITH ADVANCED MICROPROCESSOR CONTROLSOperation with Advanced Microprocessor ControlsThe advanced microprocessor (A) control for your Liebert Challenger 3000 unit features an easy-tousemenu driven LCD display. The menus, control features, and circuit board details are described inthis section. For more control details, refer to 4.0 - System Performance with Advanced MicroprocessorControls, and for more alarm information, refer to 5.0 - Alarm Descriptions.2.1 BasicsControl keys include ON/OFF, Menu/ESCape, Enter, Increase (UP) arrow, and Decrease (DOWN)arrow. Refer to Figure 1. These keys are used to move through the menus as prompted on the LCDdisplay (refer to Figure 2).To turn the unit ON, press the ON/OFF key after power is applied. To turn the unit OFF, press theON/OFF key before power is disconnected.Active alarms are displayed on the LCD screen. Alarms are also annunciated by an audible beeper. Tosilence an alarm, press the ENTER key as prompted on the display. The unit stores the 10 mostrecent alarms for review.Setpoints, DIP switch settings, and other selections were made on your unit before testing at the factory.Setpoints were chosen based on typical operating experience. Other selections were made basedon options included with your unit. Make adjustments to the factory default selections ONLY if theydo not meet your specifications. When entering setpoints, time delays, etc., the allowable ranges aredisplayed and may require a password, if enabled.Figure 1Advanced microprocessor control panel3
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Page 21 and 22: 2.5.4 Change PasswordsOperation wit
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Component Operation and Maintenance
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Table 23Compressor and refrigeratio
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Table 24No dehumidificationTable 25
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Table 27Excessive arcing in thecani
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9.0 SEMIANNUAL MAINTENANCE INSPECTI
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Ensuring The High Availability0f Mi
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Liebert Challenger 3000

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