ユーザーズマニュアル目次1.0 Introduction91.1 System Descriptions91.1.1 Compressorized Systems91.1.2 GLYCOOL™ (Chilled Glycol Cooling) Systems91.1.3 Chilled Water Systems91.2 Start-Up Procedure102.0 Operation with Advanced Microprocessor Controls112.1 Basics11Figure 1 Advanced microprocessor control panel11Figure 2 Advanced microprocessor (A) control for Challenger 3000122.2 Status Display132.3 Main Menu <MENU/ESC>132.4 Status/Alarm Data132.4.1 Active Alarms132.4.2 Operating Status132.4.3 Alarm History Log132.4.4 Run Hours Log142.4.5 Analog Sensors142.5 Setpoints/Setup142.5.1 View Setpoints14Table 1 Default setpoints and ranges142.5.2 Setup System15Setup Operation15Table 2 Setup functions, default values and ranges16Select Options16Table 3 Unit options16Calibrate Sensors16Show DIP Switches16Table 4 DIP switch settings16Select Control Type17Setup Alarms17Table 5 Alarm default time delays17Humidity (HUM) Control Method18Analog Setup19Set Status Display19Calibrate Actuator192.5.3 Run Diagnostics20Show Inputs20Test Outputs20Test Control Board202.5.4 Change Passwords212.6 Date and Time212.7 Status Display212.8 Control Circuit Board212.8.1 LCD Display Contrast212.8.2 Non-Volatile Memory222.8.3 DIP Switches222.8.4 Control Outputs22Table 6 Control output LEDs223.0 Operation with Advanced Microprocessor with Graphics Control233.1 Basics23Figure 3 Advanced microprocessor with graphics (G) control panel23Figure 4 Advanced microprocessor with graphics control menu243.2 Status Display253.3 Main Menu <MENU/ESC>253.4 View/Set Alarms253.4.1 Active Alarms253.4.2 Alarm History Log253.4.3 Setup Alarms26Table 7 Alarm default time delays263.4.4 Setup Custom Alarms273.4.5 View Water Detect Floor Plan (for Optional LTM1000/LT750)273.4.6 Setup Water Detect Floor Plan273.5 Operating Status283.6 View/Set Control Setpoints28Table 8 Default setpoints and ranges283.7 System Setup283.7.1 Setup Operation28Cold Start Delay28Auto Restart Delay29IR Flush Overfill (infrared humidifiers only)29Chilled Water/Hot Water/Econ-O-Coil Flush29Display in Degrees29Default Settings and Ranges29Table 9 Setup functions, default values and ranges293.7.2 Select Options30Table 10 Unit options303.7.3 Calibrate Sensors303.7.4 Calibrate Valve Actuator303.7.5 Select Control Algorithm (Chilled Water and SCR Reheats only)303.7.6 Select Humidity Sensing Mode313.7.7 Set Status Display313.7.8 Change Passwords313.8 Run Diagnostics313.8.1 Show Inputs323.8.2 Test Outputs323.8.3 Test Control Board323.8.4 DIP Switches33Table 11 Setting options333.9 Date and Time333.10 Plot Graphs333.10.1 Modify Plot Scales333.11 Analog/Digital Inputs343.11.1 Read Analog Inputs343.11.2 Setup Analog Inputs34Slope34Intercept34Text343.11.3 Read Digital Inputs343.11.4 Setup Digital Inputs343.12 View Run Hours Log343.12.1 View 24 Hour Run Time History353.12.2 View Total Run Hours353.13 Control Circuit board353.13.1 LCD Contrast353.13.2 Nonvolatile Memory363.13.3 DIP Switches363.13.4 Control Outputs36Table 12 Control output LEDs364.0 System Performance with Advanced Microprocessor Controls374.1 Temperature Control374.1.1 Cooling/Heating Required, in Percent (%)374.1.2 Response to Control Types37Proportional Control37PID Control (Chilled Water or SCR Reheats only)37Intelligent Control (Chilled Water only)374.1.3 Cooling Operation381-Step Cooling, Compressorized Direct Expansion (DX) Systems382-Step Cooling, Compressorized Direct Expansion (DX) Systems with Part Coil (optional)38Table 13 Cooling/dehumidification load status response38GLYCOOL Cooling38Dual Cooling Source38Chilled Water Cooling384.1.4 Heating Operation39Electric Reheat39Hot Water Reheat39SCR Electric Reheat (Requires Special Control Software)394.2 Humidity Control394.2.1 Dehumidification/Humidification Required, in Percent394.2.2 Response to Control Types39Proportional Control39PID Control (Chilled Water or SCR Reheats only)39Intelligent Control (Chilled Water only)394.2.3 Dehumidification Operation391-Stage Dehumidification, Compressorized Direct Expansion (DX) Systems394.2.4 Humidification Operation40System Activation404.3 Control Types404.3.1 Proportional Control404.3.2 PID Control (Chilled Water or SCR Reheats only)404.3.3 Intelligent Control (Chilled Water only)414.4 Load Control Features424.4.1 Short Cycle Control424.4.2 Sequential Load Activation Control424.5 Additional Features424.5.1 Connecting the Analog Sensors42Table 14 Analog input terminals42Table 15 Additional connections available after unit delivery42Figure 5 Analog input jumpers434.5.2 Water Detection Display43Installation-LT750 DIP Switch Settings43Figure 6 Connecting the LT75043Physical Connections44Setup44Calibration444.6 Communications45Liebert Monitoring Devices and Software455.0 Alarm Descriptions465.1 Standard Alarms465.1.1 Change Filter465.1.2 Compressor Overload475.1.3 Custom Alarms475.1.4 High Head Pressure475.1.5 High Humidity475.1.6 High Humidity and Low Humidity (Simultaneously)475.1.7 High Temperature475.1.8 High Temperature and Low Temperature (Simultaneously)485.1.9 Humidifier Problem48Infrared Humidifiers48Steam Generating (Canister) Humidifiers485.1.10 Loss of Air Flow485.1.11 Loss of Power485.1.12 Low Humidity485.1.13 Low Suction Pressure485.1.14 Low Temperature485.1.15 Main Fan Overload485.1.16 Short Cycle495.2 Optional/Custom Alarms495.2.1 Loss of Water Flow495.2.2 Smoke Detected495.2.3 Standby GC Pump On495.2.4 Standby Unit On495.2.5 Water Under Floor496.0 Component Operation and Maintenance506.1 System Testing506.1.1 Environmental Control Functions50Cooling50Heating50Humidification50Dehumidification50Proportional Heating/Cooling/ Dehumidification50Electric Panel50Control Transformer and Fuses50Fan Safety Switch50Firestat51Smoke Detector51Water Detection Sensor51Figure 7 Liebert leak detection units51Figure 8 Recommended liquid sensor locations51Table 16 Zone leak detection kit installation scenarios52Remote Shutdown526.2 Filters526.3 Blower Package536.3.1 Fan Impellers and Bearings536.3.2 Belt536.3.3 Air Distribution53Table 17 Recommended free area ft2 (m2) for grilles or perforated panels at output velocities of 550 and 600 fpm (2.8 and 3.1 m/s)536.4 Refrigeration System546.4.1 Suction Pressure54Table 18 Suction pressures546.4.2 Discharge Pressure54Table 19 Discharge pressures546.4.3 Superheat546.4.4 Thermostatic Expansion Valve55Operation55Adjustment556.4.5 Hot Gas Bypass Valve55Operation55Adjustment556.4.6 Air Cooled Condenser56Checking Refrigerant Charge (Lee-Temp / Flood Back Head Pressure Control)56Figure 9 Outdoor fan/condenser configuration566.4.7 Water/Glycol Cooled Condensers57Coaxial Condenser57Regulating Valve57Standard Valve - 150 psig (1034 kPa) system for 3 & 5 ton units (Johnson Controls Valve) High Pressure Valve - 350 psig (2413 kPa) system for 5 ton units (Johnson Controls Valve)57Figure 10 Johnson Controls valve adjustment57High Pressure Valve - 350 PSIG System (2413 kPa) for 3 Ton Units (Metrex Valve)58Figure 11 Metrex valve adjustment58Glycol Solution Maintenance586.4.8 Compressor Functional Check596.4.9 Compressor Replacement59Mechanical Failure59Electrical Failure60Compressor Replacement Procedure606.5 Humidifier616.5.1 Infrared Humidifier61Removing the Pan61Cleaning the Pan61Changing Humidifier Lamps61Figure 12 Infrared humidifier lamps61Autoflush Infrared Humidifier Cleaning System62Autoflush Operation62Autoflush Controls626.5.2 Steam Generating Humidifier62Figure 13 Steam generating humidifier62Operation63Controls63Replacing the Canister64Table 20 Humidifier canister part numbers64Figure 14 Canister replacement65Circuit Board Adjustments65Drain Tempering Feature657.0 Troubleshooting66Table 21 Blower troubleshooting66Table 22 Chilled water troubleshooting66Table 23 Compressor and refrigeration system troubleshooting67Table 24 Dehumidification troubleshooting69Table 25 Glycol pump troubleshooting69Table 26 Infrared humidifier troubleshooting69Table 27 Steam generating humidifier troubleshooting70Table 28 Reheat troubleshooting718.0 Monthly Maintenance Inspection Checklist72Filters72Steam Generating Humidifier72Blower Section72Infrared Humidifier72Compressor72Refrigeration Cycle/Section72Air Cooled Condenser (if applicable)72Reheat72Air Distribution Section72Refrigerant Charge729.0 Semiannual Maintenance Inspection Checklist73Filters73Blower Section73Compressor73Air Cooled Condenser (if applicable)73Water/Glycol Condenser (if applicable)73Glycol Pump73Steam Generating Humidifier73Infrared Humidifier73Refrigeration Cycle/Section73Air Distribution Section73Refrigerant Charge73Electrical Panel73Reheat73サイズ: 4.07MBページ数: 76Language: Englishマニュアルを開く