American Standard CH530 manual Control Panel Devices

Page 54

Control System

Components

Control Panel Devices

Standard Devices

	Controls			Field Connection
Description	Package		Purpose	Point Terminals
1A1 Power Supply	Standard	#1	Converts 24 vac to 24 vdc	not for field use
1A2 Power Supply	(as required)	#2	Converts 24 vac to 24 vdc	not for field use
1A3 Dual Relay	Standard	Relay #1	Oil Heater Relay	not for field use
Output modules
1A4 Dual High	Standard		High Pressure Cutout	not for field use
Voltage Input
1A5 Quad Relay	Standard	Relay #1	Chilled water pump	J2-4 NO, J2-5 NC,
Output modules			(Relay #1)	J2-6 common
1A5 Quad Relay	Standard	Relay #2	Condenser water pump control	J2-1 NO, J2-2 NC,
Output modules			(relay #2)	J2-3 common
1A6 Dual High	Standard	Input 1	Condenser Flow Input	J2-2 Condenser water
Voltage Input				flow switch
1A6 Dual High	Standard	Input 2	Evaporator Flow Input	J3-2 Chilled water
Voltage Input				flow switch
1A7 High Power	Standard		Oil Pump and	not for field use
Output Relay			Refrigerant Pump
1A13 Dual LV Binary	Standard	Signal #1	External Auto Stop,	J2-1 Binary Input Signal #1,
input module				J2-2 Ground
1A13 Dual LV Binary	Standard	Signal #2	Emergency stop	J2-3 Binary Input Signal #2,
input module				J2-4 Ground
1A26 Temp Sensor	Standard		Compressor Motor	not for field use
Input
1F1	Standard		LLID Power Supply Transformer	not for field use
			Primary Circuit protection
1T1	Standard		Control Panel Power	not for field use
			Transformer ; 120:24Vac
1Q1	Standard		Circuit Breaker Compressor	not for field use
			Motor Controller Control Power
			Branch Circuit
1Q2	Standard		Circuit Breaker -	not for field use
			Purge System Branch Circuit
1Q3	Standard		Circuit Breaker –	not for field use
			Module [- LLID]
			Power Supply Branch Circuit
1Q4	Standard		Circuit Breaker -	not for field use
			Oil System Control
			Branch Circuit
1Q5	Standard		Oil Pump Motor Branch	not for field use
			Circuit protection
1X1 Terminal Block	Standard		Control Panel Terminal Block,	1X1-5 Chilled water flow
			Flow switch connections	flow switch input
				1X1-6 Condenser water flow
				switch input

54	CDHF-SVU01C-EN

Image 54

Contents X39640670030CDHF-SVU01C-EN Read these carefully Contents About this manual General InformationLiterature change 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 InterfaceSoftware States Figure Power Up DiagramSoftware Operation Overview Diagram 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 Free Starts Restart Inhibit Start to Start Time SettingRestart Inhibit 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 Unit Control Panel UCP Control Panel Devices and Unit Mounted DevicesUnit 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 Main Screen Chiller Operating ModeCircuit Operating Mode Main Screen Data Fields TableDiagnostic Screen Back button provides navigation back to the chiller screen Operator Interface Report Menu ReportsReport name System Condenser Report name System EvaporatorReport name Circuit Evaporator Report name Circuit CondenserHistoric Diagnostics Log Report name System Ashrae Chiller LogSetting Tab screens provides a user Header ScreenFeature Settings ChillerDisplay Settings System Mode OverridesCircuit Mode Overrides PurgeOperator Interface Operator Interface Operator Interface Operator Interface Operator Interface IPC3 Definitions Bus Management Interprocessor CommunicationInter Processor Communications IPC3 BindingControl System Components Control panel components layoutControl System Components Control Panel Devices Maximum Capacity Relay Machine Shutdown Manual Reset MMRHead Relief Request Output Compressor Running RelayRefrigerant Monitor Input 1A17 ExopTrmm TRM4 Tracer Comm 4 interface Cdrp Condenser Refrigerant Pressure OutputEpro Enhanced Protection Condenser Pressure Output Temperature basedCdrp Refrigerant Pressure Output Option 1A15 Pressure basedRefrigerant Differential Pressure Indication Output Gbas Generic Building Automation System Percent RLA OutputExternal Current Limit Setpoint Module CharacteristicsExternal Chilled Water Setpoint Ecws Wpsr WFC Water Pressure Sensing Option1A8, 1A9, 1A11, 1A12 Quad Relay Output Status 1A13, 1A18, 1A19, 1A20 Dual Binary input module1A14 Communication interface Module Recommended Length to Run external Output signals 1A15, 1A16, 1A17, 1A21 Dual Analog Input/output ModuleAnalog Input Unit mounted devices Control System Components Control System Components Control Sequence of Operation Electrical SequenceUCP 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 RLAPhase Loss Protection Current Limit ProtectionReverse Rotation Protection Differential to Start or Stop SoftLoadingMinimum 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 Maximum Reset Controls Chilled Water Reset CWROutdoor Air Temperature Return WaterConstant Return Values for start reset typesDegrees of Reset EquationReset Ratio Outdoor air temperature versus degrees of resetReset function for return CWR Reset Ratio = 50% Return CWR Unit Start-Up Procedures Unit StartupDaily Unit Start-Up Seasonal Unit Start-Up Live Electrical ComponentsToxic Hazards ModeOil Pump Heater Operation Unit Shutdown ProceduresUnit Shutdown Seasonal Unit ShutdownMoisture Contamination Periodic MaintenanceDaily Maintenance and Checks Record Keeping FormsHazardous Voltage w/Capacitors Weekly MaintenanceNormal Chiller Operating Characteristics Every 3 MonthsOff-Season Maintenance Annual MaintenanceHeater Damage Oil MaintenanceOil Change Procedure Compressor Oil ChangeOil Filter Replacement Replacing Oil FilterOther Maintenance Requirements MaintenanceOil Supply System Problems Hazardous Voltage w/ CapacitorsRotary valve in drain position Front View with Refrigerant PumpContains Refrigerant Refrigerant ChargeCleaning the Condenser Recovery and Recycle ConnectionsLeak Testing Proper Water TreatmentCleaning the Evaporator Control Settings AdjustmentsUnit Corrosion Damage Purge System Unit Preparation103 104 105 106 107 108 109 110 111 112 113 114 115 Trane