用户手册目录Model Number Nomenclature71.0 Product Features91.1 Standard Product Features91.1.1 Controls91.1.2 Evaporator System Components9DX Evaporator Section9Chilled-Water Model91.1.3 Condensing Unit Components9Air-Cooled Condensing Unit (Indoor Centrifugal)9Air-Cooled Condensing Unit (Outdoor Prop Fan)9Water/Glycol Condensing Unit (Indoor)91.2 Optional Equipment101.2.1 Canister Humidifier101.2.2 Electric Reheat101.2.3 SCR Electric Reheat101.2.4 Hot Gas Bypass (Condensing Units)101.2.5 Free-Cooling Coil (GLYCOOL)101.2.6 Smoke Detector101.2.7 Firestat101.2.8 Filter Clog101.3 Ancillary (Ship Loose Accessories)111.3.1 Single Point Power Kit111.3.2 Refrigerant Line Sweat Adapter Kits111.3.3 Return Air Filter Box with Duct Collar Kit111.3.4 Condensate Pump Kit111.3.5 Remote Monitoring and Control111.3.6 Remote Sensors112.0 Site Preparation and Installation122.1 Installation Considerations12Table 1 Application limits, evaporator and chilled-water units*12Table 2 Application limits, indoor and outdoor air-cooled condensing units12Table 3 Application limits, indoor water/glycol-cooled condensing units122.1.1 Room Preparation122.1.2 Location Considerations13Figure 1 System configurations-air cooled systems14Figure 2 System Configurations-water/glycol systems14Figure 3 System Configurations-chilled water systems152.2 System Weights15Table 4 Unit weights152.3 Equipment Inspection upon receipt152.4 Installing the Evaporator or Chilled-Water Units16Figure 4 Threaded rod and hardware kit installation162.4.1 Close Coupled Installations17Figure 5 Close coupled installation172.4.2 Evaporator Air Distribution18Filter Box18Connections for Ducted Systems18Table 5 Evaporator external static pressure (60) at 3750 CFM (6371 CMH)182.4.3 Piping Connections and Coolant Requirements19Drain Line19Figure 6 Drain installation19Condensate Pump20Figure 7 Condensate pump installation20Humidifier Water Supply Line20Chilled-Water Piping-Chilled-water Systems Only21Figure 8 General arrangement diagram - chilled-water systems21Refrigerant (R-22) Piping22Table 6 Recommended refrigerant line sizes22Figure 9 Refrigerant piping diagram22Total refrigerant = Units and Lines23Table 7 8-ton unit refrigerant charge23Table 8 Line charges (field piping)*23Quick Connect Fittings23Table 9 Refrigerant quick connect sizes and torque23Figure 10 Evaporator or chilled-water unit dimensional data242.4.4 Electrical Connections, Evaporator or Chilled-Water Unit25Power Connections25Control Connections (10-wire on air-cooled, 8-wire on water/glycol cooled)25Figure 11 Evaporator unit electrical connections262.5 Indoor Air-Cooled Centrifugal Fan Condensing Unit Installation272.5.1 Location Considerations272.5.2 Ducting27General Considerations27Considerations for Specific Applications272.5.3 Piping Connections28Figure 12 Piping connections - indoor air-cooled centrifugal fan condensing unit282.5.4 Electrical Connections - Condensing Unit28Power Connections28Control Connections28Figure 13 Indoor air-cooled centrifugal condensing unit dimensions and pipe connections29Figure 14 Indoor air-cooled centrifugal condenser electrical connections302.6 Outdoor Air-Cooled Condensing Unit Installation312.6.1 Location Considerations312.6.2 Piping Connections312.6.3 Electrical Connections31Power Connections31Control Connections31Figure 15 Electrical field connections - outdoor condensing unit32Figure 16 Footprint dimensions - outdoor condensing unit33Figure 17 Piping and electrical connections - outdoor condensing unit342.7 Indoor Water- and Glycol-Cooled Condensing Unit Installation352.7.1 Location Considerations352.7.2 Piping Connections35Water/Glycol Piping Considerations35Condensing Unit Fluid Requirements35Regulating Valve352.7.3 Electrical Connections35Control Connections35Figure 18 Indoor water/glycol condensing unit dimensional data36Figure 19 Indoor water/glycol condensing unit electrical field connections37Figure 20 System piping with indoor water/glycol-cooled condensing unit382.8 Optional Equipment Piping392.8.1 Free-Cooling Coil (GLYCOOL)39Figure 21 Optional free cooling coil (3-way valve) on water/glycol units39Figure 22 Optional free cooling coil (3-way valve) on air-cooled units402.9 Checklist for Completed Installation413.0 Microprocessor Control423.1 Feature Overview42Figure 23 Wall box423.2 Main Menu <Menu>433.3 Setpoints44Table 10 Default setpoints and allowable ranges443.4 Status443.5 Active Alarms443.6 Alarm History443.7 Time453.8 Date453.9 Setback45Table 11 Night and weekend setback plan453.10 Setup Operation453.10.1 Restart Time Delay453.10.2 C/F Degrees463.10.3 Humidity Control Method463.10.4 Lead Compressor463.10.5 Show DIP Switch463.10.6 Valve Time (For Systems With a Modulating Chilled-Water Valve)463.10.7 CW Flush (For Systems With a Modulating Chilled-Water Valve)47Table 12 Setup functions, default values and allowable ranges473.11 Change Passwords473.12 Calibrate Sensors473.13 Alarm Enable473.14 Alarm Time Delay48Table 13 Alarm default time delays483.15 Common Alarm Enable483.16 Custom Alarms483.17 Custom Text49LCD Display Contrast49Nonvolatile Memory49Equipment Options Switches49Table 14 Equipment switch settings (unit control board)49Table 15 Switch settings (wallbox board)493.18 Run Diagnostics50Test Outputs50Test Inputs50Test Micro51Figure 24 Control menu51Figure 25 Control board (inside evaporator)52Figure 26 Wall box board524.0 System Performance Microprocessor Controls534.1 Control Type Response Proportional Control534.2 Cooling534.2.1 Multi-Step Cooling, Compressorized Direct Expansion (DX) Systems534.2.2 Chilled-Water Cooling (8 Ton)534.2.3 GLYCOOL Cooling (8 Ton)534.3 Reheat534.3.1 Electric Reheat - Staged534.3.2 SCR Electric Reheat534.4 Dehumidification / Humidification Percent Required544.4.1 Staged Dehumidification, Compressorized Direct Expansion (DX) Systems544.4.2 Humidification Operation54System Activation544.4.3 Dehumidification Lockout544.5 Load Control Features544.6 Communications545.0 Alarms555.1 Alarms: Definitions and Troubleshooting555.1.1 Custom Alarms555.1.2 High Head Pressure55Air-Cooled Systems55Water/Glycol Systems555.1.3 Humidity565.1.4 Temperature565.1.5 Humidifier Problem Alarm565.1.6 High-Water Alarm565.1.7 Loss of Power565.1.8 Short Cycle565.2 Optional/Custom Alarms575.2.1 Change Filter575.2.2 Firestat575.2.3 Smoke Detector576.0 System Operation, Testing, and Maintenance586.1 System Testing586.1.1 Environmental Control Functions586.1.2 Cooling586.1.3 Heating586.1.4 Humidification586.1.5 Dehumidification586.1.6 Remote Shutdown586.2 Maintenance and Component Operation596.2.1 Electric Panel596.2.2 Filters596.2.3 Blower System59Air Distribution59Blower Removal (Evaporator)596.2.4 Electric Reheat606.2.5 Refrigeration System60Suction Pressure60Discharge Pressure60Table 16 Typical discharge pressures60Thermostatic Expansion Valve60Air-Cooled Condensing Units60Coaxial Condensers (Water/Glycol-Cooled Condensing Units)60Regulating Valves (Water/Glycol Condensing Units)61Glycol Solution Maintenance61Hot Gas Bypass (Optional)61Replacement Procedures626.2.6 Steam Generating Humidifier - Operation Procedures63Replacing the Humidifier Canister646.2.7 Circuit Board Adjustments64Table 17 Humidifier control board DIP switch settings647.0 Maintenance Inspection Checklist65FILTERS65BLOWER SECTION65REHEAT65HUMIDIFIER65REFRIGERATION CYCLE/SECTION65ELECTRICAL PANEL65COMMENTS _________________________________________________________________________65_________________________________________________________________________65COMPRESSOR65CONTROLS65AIR-COOLED CONDENSER/ DRYCOOLER65WATER/GLYCOL CONDENSER65GLYCOL PUMP658.0 Troubleshooting66Table 18 Troubleshooting66文件大小: 4.1 MB页数: 72Language: English打开用户手册