Liebert 3000 - Manual

Liebert 3000

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Table of Contents:

  • Page 3 – TABLE OF CONTENTS
  • Page 4 – ii
  • Page 5 – iii
  • Page 6 – iv
  • Page 9 – Introduction; NTRODUCTION; System Descriptions
  • Page 10 – breakers, open them instead of removing fuses.; Advanced Microprocessor Controls; or; - Operation with Advanced Microprocessor; Replace all fuses (or reset circuit breakers) that were removed in; WARNING; will result in poor performance and compressor damage.
  • Page 11 – Operation with Advanced Microprocessor Controls; PERATION; this section. For more control details, refer to; processor Controls; , and for more alarm information, refer to; Basics; . These keys are used to move through the menus as prompted on the LCD; Figure 2; displayed and may require a password, if enabled.; Figure 1
  • Page 13 – Status Display; selected from the Main Menu.; NOTE
  • Page 14 – played along with the text label assigned during setup. See; Analog Setup on page 11; lists the default setpoints and their allowable ranges.; Setpoint
  • Page 15 – The Setup System menu includes the following selections:; Setup Operation; Cold Start; a “Winter Start” delay time.; Restart; —An autoflush system automatically controls a water
  • Page 16 – Table 2; Select Options; not need to be changed during normal operation.; Calibrate Sensors; The selections shown in; Table 4; should match options installed on your unit and should not need to
  • Page 17 – Select Control Type; Table 5; Alarm
  • Page 18 – you can write your own message.
  • Page 19 – Analog Setup; For installation of analog sensors, see; Slope; length including any of the following:; Set Status Display
  • Page 20 – Show Inputs; Device; Test Outputs; CAUTION
  • Page 21 – Date and Time; configuration. The jumpers should be placed as follows:; sors; for other configurations; are backed up by battery.; control keys are pressed.; The LED backlighting on the text (4 x 20) display is always lit.
  • Page 22 – from the LCD display (see; Show DIP Switches on page 8; or the accompanying; LED
  • Page 23 – Operation with Advanced Microprocessor with Graphics Control; mance with Advanced Microprocessor Controls; for details on the alarms refer to; Descriptions; Figure 3; Figure 4
  • Page 25 – Selecting VIEW/SET ALARMS will step to the following menu:; See
  • Page 26 – Table 7
  • Page 27 – Selecting SETUP CUSTOM ALARMS will step to the following menu:; Standard Custom Alarm Messages; For more information concerning alarms, see
  • Page 28 – Operating Status; trol is calling for the system to do.; View/Set Control Setpoints; see the list of default setpoints and their allowable ranges.; System Setup; Selecting SYSTEM SETUP will step to the following menu:; Cold Start Delay
  • Page 29 – Auto Restart Delay; which they can be programmed.; Table 9; Function; Cold Start Time Delay*
  • Page 30 – should not need to change during normal operation.; Performance with Advanced Microprocessor Controls; for more details on types of control.; Unit options; Option
  • Page 31 – if absolute is selected. With; Run Diagnostics
  • Page 32 – Do not test a compressor output for more than a few seconds.
  • Page 33 – Selecting PLOT GRAPHS will step to the following menu:; Off
  • Page 34 – View Run Hours Log
  • Page 35 – Control Circuit board; jumpers should be placed as follows:; for other configurations.; the last key is pressed.
  • Page 36 – Control output LEDs
  • Page 37 – System Performance with Advanced Microprocessor Controls; Temperature Control; Proportional Control; Types; take if manually controlling the system (see
  • Page 38 – compressor when the requirement drops to 25%.; GLYCOOL Cooling; through the SETUP OPERATION menu.; Dual Cooling Source; water temperature is 3°F cooler than the return air temperature.; Chilled Water Cooling; Cooling/dehumidification load status response; Part Coil
  • Page 39 – Electric Reheat; MINUS the Temperature Sensitivity MINUS 1°F.; Humidity Control; ment for dehumidification/ humidification.; being determined by the humidity sensitivity setpoint.
  • Page 40 – System Activation; Control Types; are the usual setpoint and sensitivity adjustments.
  • Page 41 – same amplitude from one peak to the next).; Time between peaks x peak amplitude x 4
  • Page 42 – Load Control Features; operating conditions have been met.; Additional Features; Figure 5; and; Figure 6; to the terminals as follows:; Analog input terminals; Terminal; Additional connections available after unit delivery; NO Jumper
  • Page 43 – Installation—LT750 DIP Switch Settings; ENLARGED AREA
  • Page 44 – Physical Connections; Setup
  • Page 45 – Communications; installation and operation information.; Liebert Monitoring Devices and Software
  • Page 46 – Alarm Descriptions; LARM; Setup Alarms on page 9; Standard Alarms
  • Page 47 – box on the compressor.
  • Page 48 – Infrared Humidifiers; ation of the humidifier water makeup valve.
  • Page 49 – to cycle the compressor.; Optional/Custom Alarms; or fire, and follow appropriate emergency procedures.; for some of the alarms.
  • Page 50 – Component Operation and Maintenance; OMPONENT; System Testing; done by temporarily changing the setpoints.; fittings or connections.
  • Page 51 – Firestat; between terminals 1 and 2 at plug P39.; Smoke Detector; Figure 7
  • Page 52 – Remote Shutdown; Filters; knob one turn clockwise, or to the desired filter change point.; Zone leak detection kit installation scenarios; Distance From Unit
  • Page 53 – Blower Package; has approximately 56 in; Model
  • Page 54 – Refrigeration System; Suction pressures; System; Water Cooled; Discharge pressures; System Design; Air Cooled
  • Page 55 – Operation; CLOCKWISE if a higher evaporator temperature is required.; for the new balance to take place.
  • Page 56 – inspect all refrigerant lines for signs of oil leaks.; Figure 9
  • Page 57 – Coaxial Condenser; Adjustment; screw driver. Refer to; Figure 10 Johnson Controls valve adjustment
  • Page 58 – as viewed from top of valve spring housing.; Figure 11 Metrex valve adjustment; Glycol Solution Maintenance; Adjusting Collar Nut
  • Page 59 – blockage in the system.; Before replacing or returning a compressor:; Be certain that the compressor is actually; Mechanical Failure
  • Page 60 – Electrical Failure; would cause a future failure.; Compressor Replacement Procedure; charging the system with recovered refrigerant.; abuse under the terms of the warranty, and the; WARRANTY WILL BE VOID; result. Use long rubber gloves in handling contaminated parts.; the same way to maintain proper rotation direction.
  • Page 61 – Humidifier; Removing the Pan; bulb with a continuity meter.; Removing the Pan on page 53; through; is no hotter than lukewarm.; severely shorten bulb life. Use clean cotton gloves at all times.
  • Page 62 – Autoflush Infrared Humidifier Cleaning System; Steps 3; Autoflush Controls; Figure 13 Steam generating humidifier
  • Page 63 – and goes to normal operation. No drain is permitted until then.; Controls; able to the humidifier circuits.
  • Page 64 – Replacing the Canister; Record the original setpoint.; the canister replacement procedure.; Humidifier canister part numbers; Part
  • Page 65 – Figure 14 Canister replacement; Circuit Board Adjustments; resistor (R4) which is factory selected based on unit voltage.; Drain Tempering Feature; desired, power may be disconnected prior to the procedure.
  • Page 66 – Troubleshooting; ROUBLESHOOTING; gestions are grouped by product function for convenience.; pressurized pipes and tubes.; Blower troubleshooting
  • Page 67 – Compressor and refrigeration system troubleshooting; Symptom
  • Page 69 – Dehumidification troubleshooting
  • Page 70 – Steam generating humidifier troubleshooting
  • Page 71 – Reheat troubleshooting; may be required to meet specific application requirements.; Steam generating humidifier troubleshooting (continued)
  • Page 72 – Monthly Maintenance Inspection Checklist; ONTHLY; leaks
  • Page 73 – Semiannual Maintenance Inspection Checklist; EMIANNUAL; Notes
  • Page 76 – Precision Cooling
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Precision Cooling
For Business-Critical Continuity

Liebert Challenger

™

3000

Operation & Maintenance Manual - 3 & 5 Ton, 50 & 60Hz

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Summary

Page 3 - TABLE OF CONTENTS

i TABLE OF CONTENTS 1.0 I NTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 System Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1....

Page 4 - ii

ii 3.7.1 Setup Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.7.2 Select Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 ...

Page 5 - iii

iii 4.4.2 Sequential Load Activation Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 4.5 Additional Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 4.5.1 Connecting the ...

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