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Page SAFETYCONSIDERATIONS......................1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 ABBREVIATIONS AND EXPLANATIONS . . . . . . . . . . 4 CHILLERFAMILIARIZATION.................... 5-7 ChillerInformationNameplate....................5 SystemComponents.............................5 Cooler............................................5 Condenser .......................................5 Motor-Compressor ...............................5 ControlPanel.....................................5 Factory-Mounted Starter or Variable FrequencyDrive(Optional).....................7 StorageVessel(Optional) ........................7 REFRIGERATION CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . 7 MOTOR AND LUBRICATING OIL COOLINGCYCLE ............................ 7,8 VFD COOLING CYCLE. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 LUBRICATIONCYCLE.......................... 8,9 Summary.........................................8 Details............................................8 OilReclaimSystem...............................8 • PRIMARY OIL RECOVERY MODE • SECONDARY OIL RECOVERY METHOD STARTINGEQUIPMENT ....................... 9,10 Unit-Mounted Solid-State Starter (Optional) ......................................9 Unit-Mounted Wye-Delta Starter (Optional) .....................................10 Unit-Mounted VFD (Optional) . . . . . . . . . . . . . . . . . . . . 10 CONTROLS................................... 10-45 Definitions ......................................10 • ANALOG SIGNAL • DISCRETE SIGNAL General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 PIC II System Components . . . . . . . . . . . . . . . . . . . . . . 11 • CHILLER VISUAL CONTROLLER (CVC) • INTEGRATED STARTER MODULE (ISM) • CHILLER CONTROL MODULE (CCM) • OIL HEATER CONTACTOR (1C) • OIL PUMP CONTACTOR (2C) • HOT GAS BYPASS CONTACTOR RELAY (3C) (Optional) • CONTROL TRANSFORMERS (T1, T2) CVCOperationandMenus ......................15 • GENERAL • ALARMS AND ALERTS • CVC MENU ITEMS • BASIC CVC OPERATIONS (Using the Softkeys) • TO VIEW STATUS • OVERRIDE OPERATIONS • TIME SCHEDULE OPERATION • TO VIEW AND CHANGE SET POINTS • SERVICE OPERATION PICIISystemFunctions.........................33 • CAPACITY CONTROL FIXED SPEED • CAPACITY CONTROL VFD • ECW CONTROL OPTION • CONTROL POINT DEADBAND • DIFFUSER CONTROL • PROPORTIONAL BANDS AND GAIN • DEMAND LIMITING • CHILLER TIMERS • OCCUPANCY SCHEDULE SafetyControls..................................34 ShuntTrip(Option)..............................35 Default Screen Freeze . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Page RampLoading................................. ..36 Capacity Override . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 High Discharge Temperature Control . . . . . . . . . . . . 36 Oil Sump Temperature Control . . . . . . . . . . . . . . . . . . 36 OilCooler .......................................36 RemoteStart/StopControls.....................36 SpareSafetyInputs .............................36 SpareSafetyAlarmContacts....................37 RefrigerantLeakDetector.......................37 KilowattOutput..................................37 RemoteResetofAlarms.........................37 CondenserPumpControl .......................37 CondenserFreezePrevention...................38 TowerFanRelayLowandHigh..................38 Auto. Restart After Power Failure. . . . . . . . . . . . . . . . 38 Water/Brine Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 • RESET TYPE 1 • RESET TYPE 2 • RESET TYPE 3 DemandLimitControlOption ...................39 Surge Prevention Algorithm (Fixed Speed Chiller) . . . . . . . . . . . . . . . . . . . . . . . . . . 39 SurgePreventionAlgorithmwithVFD...........40 SurgeProtectionVFDUnits.....................40 Surge Protection (Fixed Speed Chiller) . . . . . . . . . . 40 • HEAD PRESSURE REFERENCE OUTPUT Lead/Lag Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 • COMMON POINT SENSOR INSTALLATION • CHILLER COMMUNICATION WIRING • LEAD/LAG OPERATION • FAULTED CHILLER OPERATION • LOAD BALANCING • AUTO. RESTART AFTER POWER FAILURE IceBuildControl ................................43 • ICE BUILD INITIATION • START-UP/RECYCLE OPERATION • TEMPERATURE CONTROL DURING ICE BUILD • TERMINATION OF ICE BUILD • RETURN TO NON-ICE BUILD OPERATIONS AttachtoNetworkDeviceControl ...............44 • ATTACHING TO OTHER CCN MODULES Service Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 • TO ACCESS THE SERVICE SCREENS • TO LOG OUT OF NETWORK DEVICE • HOLIDAY SCHEDULING START-UP/SHUTDOWN/RECYCLE SEQUENCE ................................ 46,47 Local Start-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 ShutdownSequence ............................47 Automatic Soft Stop Amps Threshold . . . . . . . . . . . 47 Chilled Water Recycle Mode . . . . . . . . . . . . . . . . . . . . . 47 Safety Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 BEFOREINITIALSTART-UP..................48-64 JobDataRequired ..............................48 EquipmentRequired ............................48 Using the Optional Storage Tank andPumpoutSystem .........................48 RemoveShippingPackaging....................48 OpenOilCircuitValves..........................48 Tighten All Gasketed Joints and Guide Vane Shaft Packing . . . . . . . . . . . . . . . . . . . . . 48 CheckChillerTightness.........................48 RefrigerantTracer...............................48 LeakTestChiller ................................50 StandingVacuumTest...........................50 ChillerDehydration..............................53 InspectWaterPiping ............................53 CONTENTS 2PDF Image | 19XR,XRV Hermetic Centrifugal Liquid Chillers 50/60 Hz With PIC II Controls and HFC-134a
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