American Standard CH530 General Information, Literature change, About this manual, Unit Nameplate

Page 4

General Information

Literature change

Applicable to CDHF, CDHG

About this manual

Operation and maintenance information for models CDHF, CDHG are covered in this manual. This includes both 50 and 60 Hz. CDHF and CDHG centrifugal chillers equipped with the Tracer CH530 Chiller Controller system. Please note that information pertains to all three chiller types unless differences exist in which case the sections are broken down by Chiller type as applicable and discussed separately.

By carefully reviewing this information and following the instructions given, the owner or operator can successfully operate and maintain a CDHF, or CDHG unit.

If mechanical problems do occur, however, contact a qualified service organization to ensure proper diagnosis and repair of the unit.

Unit Nameplate

The unit nameplate is located on the left side of the unit control panel.

The following information is provided on the unit nameplate.

1. Serial Number

The unit serial number provides the specific chiller identity. Always provide this serial number when calling for service or during parts identification..

2. Service Model Number

The service model represents the unit as built for service purposes . It identifies the selections of variable unit features required when ordering replacements parts or requesting service.

Note: Unit-mounted starters are identified by a separate number found on the starter.

3. Product Coding Block

The CDHF and CDHG models are defined and built using the product definition and selection (PDS) system. This system describes the product offerings in terms of a product coding block which is made up of feature categories and feature codes. An example of a typical product code block is given on this page. The coding block precisely identifies all characteristics of a unit.

4.Identifies unit electrical requirements

5.Correct operating charges and type of refrigerant

6.Unit Test Pressures and Maximum Operating Pressures

7.Identifies unit Installation and Operation and Maintenance manuals

8.Drawing numbers for Unit Wiring Diagrams

Typical Product Description Block

MODL CDHF

DSEQ 2R

NTON 2500

VOLT 575

REF 123

HRTZ 60

TYPE SNGL

CPKW 142

CPIM 222

TEST AIR

EVTM IECU

EVTH 28

EVSZ 032S

EVBS 280

 

EVWC STD

EVWP 2

EVWT NMAR

EVPR 150

 

EVCO VICT

EVWA LELE

CDTM IECU

CDTH 28

 

CDSZ 032S

CDBS 250

CDWC STD

CDWP 2

 

CDWT NMAR

CDPR 150

CDCO VICT

CDWA LELE

 

CDTY STD

TSTY STD

ECTY WEOR

ORSZ 230

 

PURG PURE

WCNM SNMP

SPKG DOM

OPTI CPDW

 

HHOP NO

GENR NO

GNSL NO

SOPT SPSH

 

ACCY ISLS

HGBP WO

LUBE SNGL

AGLT CUL

 

CNIF UCP

SRTY USTR

SRRL 207

PNCO TERM

 

4

CDHF-SVU01C-EN

Page 3 Page 5
Image 4
Page 3 Page 5
Contents X39640670030CDHF-SVU01C-EN Read these carefully Contents General Information Literature changeAbout this manual Unit NameplateGeneral Information = 560 3 stage 935 2 stage Y = 500 3 stage 835 2 stage Commonly Used Acronyms Control Optional PackagesOverview General Duplex unit components front viewGeneral Duplex unit components 2 stage compressor Cooling Cycle Compressor 1 or 2 2 StagePressure enthalpy curve 3 stage compressor Pressure enthalpy curve 2 stage compressor TechView Chiller Service Tool DynaView Human InterfacePower Up Diagram Software Operation Overview DiagramSoftware States Figure Timeline Text FiguresCDHE/F/G sequence of operation auto to running Staging Second Compressor OnStaging Second Compressor Off Satisfied SetpointCDHF/G sequence of operation lead 1/lag Fixed Sequence Compressor 2 / Compressor CDHE/F/G sequence of operation lead 2 lagSequencing Balanced Starts and Hours CDHF/G sequence of operation equalize starts and hoursSimultaneous Compressor Start/ Stop CDHF/G sequence of operation combined startRestart Inhibit Start to Start Time Setting Restart InhibitRestart Inhibit Free Starts Clear Restart InhibitSurface Temperatures Oil and Refrigerant PumpOil refrigerant pump circuit 1 or Base Loading Control Algorithm 20 100 percent RLAGeneral Information Ice Machine Control Sequence of operation ice making running to ice makingHot Water control Control Panel Devices and Unit Mounted Devices Unit Control Panel UCPUnit Control Panel UCP Variable water flow through the evaporator User-defined language supportOperator Interface DynaView main processorOperator Interface Chiller Stop Prevention/Inhibit Feature How It WorksTop Level Mode Description System Reset Reference Chiller Operating Mode Circuit Operating ModeMain Screen Main Screen Data Fields TableDiagnostic Screen Back button provides navigation back to the chiller screen Operator Interface Report Menu ReportsReport name System Evaporator Report name Circuit EvaporatorReport name System Condenser Report name Circuit CondenserHistoric Diagnostics Log Report name System Ashrae Chiller LogSetting Tab screens provides a user Header ScreenFeature Settings ChillerSystem Mode Overrides Circuit Mode OverridesDisplay Settings PurgeOperator Interface Operator Interface Operator Interface Operator Interface Operator Interface Interprocessor Communication Inter Processor Communications IPC3IPC3 Definitions Bus Management BindingControl System Components Control panel components layoutControl System Components Control Panel Devices Machine Shutdown Manual Reset MMR Head Relief Request OutputMaximum Capacity Relay Compressor Running RelayRefrigerant Monitor Input 1A17 ExopCdrp Condenser Refrigerant Pressure Output Trmm TRM4 Tracer Comm 4 interfaceEpro Enhanced Protection Temperature based Cdrp Refrigerant Pressure Output Option 1A15Condenser Pressure Output Pressure basedRefrigerant Differential Pressure Indication Output Gbas Generic Building Automation System Percent RLA OutputModule Characteristics External Chilled Water Setpoint EcwsExternal 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 Control Sequence Operation Test and start timing sequenceAFD Momentary Power Loss MPL Protection Machine Protection Adaptive ControlCurrent Overload Protection Overload trip time versus percent RLACurrent Limit Protection Phase Loss ProtectionReverse Rotation Protection SoftLoading Differential to Start or StopMinimum and Maximum Capacity Limit Leaving Water Temperature Cutout Evaporator LimitLow Refrigerant Temperature Cutout Head Relief RelayCutout strategy Condenser Limit Restart Inhibit High Vacuum Lockout Oil Temperature Control Controls Chilled Water Reset CWR Outdoor Air TemperatureMaximum Reset Return WaterValues for start reset types Degrees of ResetConstant Return EquationReset Ratio Outdoor air temperature versus degrees of resetReset function for return CWR Reset Ratio = 50% Return CWR Unit Startup Unit Start-Up ProceduresDaily Unit Start-Up Live Electrical Components Toxic HazardsSeasonal Unit Start-Up ModeUnit Shutdown Procedures Unit ShutdownOil Pump Heater Operation Seasonal Unit ShutdownPeriodic Maintenance Daily Maintenance and ChecksMoisture Contamination Record Keeping FormsWeekly Maintenance Normal Chiller Operating CharacteristicsHazardous Voltage w/Capacitors Every 3 MonthsOff-Season Maintenance Annual MaintenanceOil Maintenance Oil Change ProcedureHeater Damage Compressor Oil ChangeOil Filter Replacement Replacing Oil FilterMaintenance Oil Supply System ProblemsOther Maintenance Requirements Hazardous Voltage w/ CapacitorsRotary valve in drain position Front View with Refrigerant PumpContains Refrigerant Refrigerant ChargeRecovery and Recycle Connections Leak TestingCleaning the Condenser Proper Water TreatmentControl Settings Adjustments Cleaning the EvaporatorUnit Corrosion Damage Purge System Unit Preparation103 104 105 106 107 108 109 110 111 112 113 114 115 Trane
Top Page Image Contents