Carrier AQUASNAP 30RAP010-150 Controls, Start-up, Operation, Service, And Troubleshooting

Also see for AQUASNAP 30RAP010-150: Start up & operation manual Installation instructions Installation instructions Controls, start-up, operation, service, and troubleshooting

Carrier AQUASNAP 30RAP010-150 Controls, Start-up, Operation, Service, And Troubleshooting Manual pdf 2 page image

2CONTENTS (cont)PageCheck Unit Safeties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56• HIGH-PRESSURE SWITCH• PRESSURE TRANSDUCERS• COOLER FREEZE-UP PROTECTION• HEATER CABLE• WINTER SHUTDOWNThermistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57• REPLACING THERMISTORS 9EWT, LWT, RGT)• THERMISTOR/TEMPERATURE SENSOR CHECKPressure Transducers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57• TROUBLESHOOTINGChilled Water Flow Switch . . . . . . . . . . . . . . . . . . . . . . . . . 57Strainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63Condenser Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63• METAL FANS• LOW SOUND FANMotormaster ® V Controller . . . . . . . . . . . . . . . . . . . . . . . . . 63• GENERAL OPERATION• CONFIGURATION• DRIVE PROGRAMMING• EPM CHIP• LOSS OF CCN COMMUNICATIONS• REPLACING DEFECTIVE MODULESHydronic Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68• PUMP PERFORMANCE CHECK• PUMP MODIFICATIONS AND IMPELLER TRIMMING• RESET OF CHILLED WATER FLOW• CHANGING PUMP SEALS• VFD OPERATIONMAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69Recommended Maintenance Schedule. . . . . . . . . . . . . 69Condenser Coil Maintenance and CleaningRecommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69Control Box Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . 69TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . 69-82Complete Unit Stoppage and Restart . . . . . . . . . . . . . . 69• GENERAL POWER FAILURE• UNIT ENABLE-OFF-REMOTE CONTACT SWITCH ISOFF• CHILLED FLUID PROOF-OF-FLOW SWITCH OPEN• OPEN 24-V CONTROL CIRCUIT BREAKERS• COOLING LOAD SATISFIED• THERMISTOR FAILURE• LOW SATURATED SUCTION• COMPRESSOR SAFETIESMotor Overload Protection . . . . . . . . . . . . . . . . . . . . . . 70• COPELAND COMPRESSORS ELECTRICAL CODE TF(010-090)• COPELAND COMPRESSORS ELECTRICAL CODE TW(010-090) OR DANFORTH COMPRESSOR (100-150)• FIELD TROUBLESHOOTING SOLID-STATE MOTORPROTECTION MODULEAlarms and Alerts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71APPENDIX A — DISPLAY TABLES . . . . . . . . . . . . . . 83-99APPENDIX B — CCN TABLES . . . . . . . . . . . . . . . . . 100-112APPENDIX C — FACTORY SETTINGS FORPUMP AND MANUAL STARTERS. . . . . . . . . . . . . . . . 113APPENDIX D — BACNET COMMUNICATONOPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114-122APPENDIX E — MAINTENANCE SUMMARYAND LOG SHEETS . . . . . . . . . . . . . . . . . . . . . . . . . . 123-125INDEX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126START-UP CHECKLIST FOR 30RAP LIQUIDCHILLER. . . . . . . . . . . . . . . . . . . . . . . . . . . . .CL-1 to CL-12SAFETY CONSIDERATIONSInstalling, starting up, and servicing this equipment can behazardous due to system pressures, electrical components, andequipment location (roof, elevated structures, mechanicalrooms, etc.). Only trained, qualified installers and servicemechanics should install, start up, and service this equipment.When working on this equipment, observe precautions inthe literature, and on tags, stickers, and labels attached to theequipment, and any other safety precautions that apply. Followall safety codes. Wear safety glasses and work gloves. Usecare in handling, rigging, and setting this equipment, and inhandling all electrical components.WARNINGElectrical shock can cause personal injury and death. Shutoff all power to this equipment during installation. Theremay be more than one disconnect switch. Tag all discon-nect locations to alert others not to restore power until workis completed.WARNINGDO NOT VENT refrigerant relief valves within a building.Outlet from relief valves must be vented outdoors inaccordance with the latest edition of ANSI/ASHRAE(American National Standards Institute/American Societyof Heating, Refrigeration and Air Conditioning Engineers)15 (Safety Code for Mechanical Refrigeration). Theaccumulation of refrigerant in an enclosed space candisplace oxygen and cause asphyxiation. Provide adequateventilation in enclosed or low overhead areas. Inhalation ofhigh concentrations of vapor is harmful and may causeheart irregularities, unconsciousness or death. Misuse canbe fatal. Vapor is heavier than air and reduces the amountof oxygen available for breathing. Product causes eye andskin irritation. Decomposition products are hazardous.WARNINGDO NOT USE TORCH to remove any component. Systemcontains oil and refrigerant under pressure.To remove a component, wear protective gloves and gog-gles and proceed as follows:a. Shut off electrical power to unit.b. Recover refrigerant to relieve all pressure from sys-tem using both high-pressure and low pressure ports.c. Traces of vapor should be displaced with nitrogenand the work area should be well ventilated. Refrig-erant in contact with an open flame produces toxicgases.d. Cut component connection tubing with tubing cutterand remove component from unit. Use a pan to catchany oil that may come out of the lines and as a gagefor how much oil to add to the system.e. Carefully unsweat remaining tubing stubs when nec-essary. Oil can ignite when exposed to torch flame.Failure to follow these procedures may result in personalinjury or death.CAUTIONDO NOT re-use compressor oil or any oil that has beenexposed to the atmosphere. Dispose of oil per local codesand regulations. DO NOT leave refrigerant system open toair any longer than the actual time required to service theequipment. Seal circuits being serviced and charge withdry nitrogen to prevent oil contamination when timelyrepairs cannot be completed. Failure to follow these proce-dures may result in damage to equipment.