American Standard CH530 manual Diagnostic Screen

Page 37

Operator Interface

Diagnostic Screen

The diagnostic screen is accessible by touching the Alarms enunciator.

When an alarm is present, the alarm enunciator is present next to the Stop key. A flashing “alarm” indicates a machine shutdown and a non flashing “alarm” indicates an informational message.

Machine shutdowns can be of two types:

Latching - Machine Shutdown Manual Reset Required (MMR)

or

Non-Latching - Machine Shutdown Auto Reset (MAR)

Latching (MMR) require corrective action and manual reset.

Non-Latching (MAR) will restart automatically when condition corrects itself.

There are over 200 potential messages, too numerous to incorporate in this manual.

Up to ten active diagnostics can be displayed if required.

The reason for all diagnostics must be determined and corrected. Do not reset and restart the chiller as this can cause a repeat failure. Contact local Trane Service for assistance as necessary.

After corrective action, the chiller can be reset and/or restarted. In the case of “Unit Shutdown - Reset Required” diagnostic types, the chiller will have to be manually reset through the Diagnostics alarm menu.

When reset they become historic and viewable via the service tool TechView.

Performing a Reset All Active Diagnostics will reset all active diagnostics regardless of type, machine or refrigerant circuit.

A Manual Override indicator (shares space with the Alarms key) alerts the operator to the presence of a manual override. An Alarm will take precedence over any manual override, until the reset of active alarms, at which point the Manual indicator would reappear if such an override exists.

Temperature settings can be expressed in F or C, depending on Display Units settings.

Dashes (“- - - -”) appearing in a temperature or pressure report, indicates that the value is invalid or not applicable.

The languages for DynaView™ will reside in the main processor. The main processor will hold three languages, English, and two alternate languages. The service tool (TechView™) will load the main processor with user selected languages from a list of available translations. Whenever possible, complete words will be used on the persistent keys as described.

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Contents X39640670030CDHF-SVU01C-EN Read these carefully Contents Literature change General InformationAbout this manual Unit NameplateGeneral Information = 560 3 stage 935 2 stage Y = 500 3 stage 835 2 stage Control Optional Packages Commonly Used AcronymsGeneral Duplex unit components front view OverviewGeneral Duplex unit components 2 stage compressor Compressor 1 or 2 2 Stage Cooling CyclePressure enthalpy curve 3 stage compressor Pressure enthalpy curve 2 stage compressor DynaView Human Interface TechView Chiller Service ToolSoftware Operation Overview Diagram Power Up DiagramSoftware States Figure Timeline Text FiguresStaging Second Compressor On CDHE/F/G sequence of operation auto to runningSatisfied Setpoint Staging Second Compressor OffCDHF/G sequence of operation lead 1/lag CDHE/F/G sequence of operation lead 2 lag Fixed Sequence Compressor 2 / CompressorCDHF/G sequence of operation equalize starts and hours Sequencing Balanced Starts and HoursCDHF/G sequence of operation combined start Simultaneous Compressor Start/ StopRestart Inhibit Restart Inhibit Start to Start Time SettingRestart Inhibit Free Starts Clear Restart InhibitOil and Refrigerant Pump Surface TemperaturesOil refrigerant pump circuit 1 or 20 100 percent RLA Base Loading Control AlgorithmGeneral Information Sequence of operation ice making running to ice making Ice Machine ControlHot Water control Control Panel Devices and Unit Mounted Devices Unit Control Panel UCPUnit Control Panel UCP User-defined language support Variable water flow through the evaporatorDynaView main processor Operator InterfaceOperator Interface How It Works Chiller Stop Prevention/Inhibit FeatureTop Level Mode Description System Reset Reference Circuit Operating Mode Chiller Operating ModeMain Screen Main Screen Data Fields TableDiagnostic Screen Back button provides navigation back to the chiller screen Operator Interface Reports Report MenuReport name Circuit Evaporator Report name System EvaporatorReport name System Condenser Report name Circuit CondenserReport name System Ashrae Chiller Log Historic Diagnostics LogHeader Screen Setting Tab screens provides a userChiller Feature SettingsCircuit Mode Overrides System Mode OverridesDisplay Settings PurgeOperator Interface Operator Interface Operator Interface Operator Interface Operator Interface Inter Processor Communications IPC3 Interprocessor CommunicationIPC3 Definitions Bus Management BindingControl panel components layout Control System ComponentsControl System Components Control Panel Devices Head Relief Request Output Machine Shutdown Manual Reset MMRMaximum Capacity Relay Compressor Running RelayExop Refrigerant Monitor Input 1A17Cdrp Condenser Refrigerant Pressure Output Trmm TRM4 Tracer Comm 4 interfaceEpro Enhanced Protection Cdrp Refrigerant Pressure Output Option 1A15 Temperature basedCondenser Pressure Output Pressure basedRefrigerant Differential Pressure Indication Output Percent RLA Output Gbas Generic Building Automation SystemExternal Chilled Water Setpoint Ecws Module CharacteristicsExternal Current Limit Setpoint Wpsr WFC Water Pressure Sensing Option1A13, 1A18, 1A19, 1A20 Dual Binary input module 1A8, 1A9, 1A11, 1A12 Quad Relay Output Status1A14 Communication interface Module 1A15, 1A16, 1A17, 1A21 Dual Analog Input/output Module Recommended Length to Run external Output signalsAnalog Input Unit mounted devices Control System Components Control System Components Electrical Sequence Control Sequence of OperationUCP and Wye-Delta Starter Control Circuits Delay time 200 msec. Opens 2K1 Control Sequence of Operation Test and start timing sequence Control Sequence OperationAFD Machine Protection Adaptive Control Momentary Power Loss MPL ProtectionOverload trip time versus percent RLA Current Overload ProtectionCurrent Limit Protection Phase Loss ProtectionReverse Rotation Protection SoftLoading Differential to Start or StopMinimum and Maximum Capacity Limit Evaporator Limit Leaving Water Temperature CutoutHead Relief Relay Low Refrigerant Temperature CutoutCutout strategy Condenser Limit Restart Inhibit High Vacuum Lockout Oil Temperature Control Outdoor Air Temperature Controls Chilled Water Reset CWRMaximum Reset Return WaterDegrees of Reset Values for start reset typesConstant Return EquationOutdoor air temperature versus degrees of reset Reset RatioReset function for return CWR Reset Ratio = 50% Return CWR Unit Startup Unit Start-Up ProceduresDaily Unit Start-Up Toxic Hazards Live Electrical ComponentsSeasonal Unit Start-Up ModeUnit Shutdown Unit Shutdown ProceduresOil Pump Heater Operation Seasonal Unit ShutdownDaily Maintenance and Checks Periodic MaintenanceMoisture Contamination Record Keeping FormsNormal Chiller Operating Characteristics Weekly MaintenanceHazardous Voltage w/Capacitors Every 3 MonthsAnnual Maintenance Off-Season MaintenanceOil Change Procedure Oil MaintenanceHeater Damage Compressor Oil ChangeReplacing Oil Filter Oil Filter ReplacementOil Supply System Problems MaintenanceOther Maintenance Requirements Hazardous Voltage w/ CapacitorsFront View with Refrigerant Pump Rotary valve in drain positionRefrigerant Charge Contains RefrigerantLeak Testing Recovery and Recycle ConnectionsCleaning the Condenser Proper Water TreatmentControl Settings Adjustments Cleaning the EvaporatorUnit Corrosion Damage Unit Preparation Purge System103 104 105 106 107 108 109 110 111 112 113 114 115 Trane