Bacharach ADM800, AGM300 manual Chiller, Machine Room

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AGM300 / ADM800 Refrigerant Gas Leak Monitor Mechanical Room Placement

Sample Inlet Pickup Point

Aux. Horn/Strobe

Remote Alarm

Exhaust Fan

Outside Hallway

Machine Room

Fresh air purge from area away from ammonia gas

ADM800

Ammonia Display Module outside of mechanical room

Chiller

AGM300

Ammonia

Gas

Monitor

Sample Inlet Pickup Points

The ADM800 should be mounted outside of the mechanical room or at least just inside of a door to the room. This is the “split architecture design” for safety of the operator. The ADM800 can be located up to 4500 feet from the AGM300. The ADM800 is the main interface by which you program the AGM300, acknowledge alarms, and observe conditions inside of the mechanical room. Note that there are two additional alarm relay contacts in the ADM800 that can be programmed to alarm with “leak, spill, evacuate, fault or monitor on”.

vi	Instruction 3015-4275

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Contents

AGM300 / ADM800 Ammonia Gas Monitoring System Rev MayInstruction Table of Contents Please Read this Manual Carefully Before Use How to Use This Manual Introduction Safety Precautions Hazard Symbols on Monitor Installation CategoryCleaning Altitude LimitFunctional Overview General DescriptionCommunication Options Suggested Location of Sampling PointsChiller Machine RoomStandard Accessories for a 4 Point System LEDInspection AGM300 Installation ConsiderationsLocating the Monitor Installation AGM300 Mounting InstructionsScrew Locations AGM300 Mounting SpecsAGM300 Connecting Air Lines OverviewAGM300 Side View Inlet / Purge PortsConnecting Purge Line Connecting Exhaust LineConnecting Sample Intake Lines Tubing ConsiderationsAGM300 Interior Schematic Do not Apply Power Switches / FusesON/OFF / OUTAGM300 Electrical Wiring VAC InstallationAGM300 AC Input Power and Ground Connections AGM300 Connecting Communication Devices RS-485 ConnectorAmmonia Display Module ADM800 Connection Integrating with Building Management SystemsOUT Changing Terminator SettingsPersonal Computer Refer to AGM300 PC Software Section RS-485 Connections Between AGM300’s Connecting to a Building Management SystemMultiple AGM’s Programming the AGM300 Using PC Software AGM300 PC SoftwareMultiple AGM300’s Connected to a Building Management System Unit Node Terminator Outout Building Management SystemSaving the AGM300 Program to a Disk or Drive To Open a Saved ProgramTo Send a Saved Program to an AGM300 Trend DataUSB Type Laptops Sealevel SYSTEMS, INCCurrent Loop Connector AGM300 Current Loop InterfacesOptional 4-20 mAdc Outputs ConnectionAGM300 Connecting External Alarms AGM300 Relay ConnectorLeak Spill Evacuate Fault Typical AGM300 Relay 1 and Relay 2 WiringADM800 Installation ADM800 Oblique PhotoADM800 Installation Considerations ADM800 Mounting Instructions ADM800 Mounting SpecsADM800 Interior Schematic Front Panel ChassisTo Monitors To HostADM800 Electrical Wiring ADM800 AC Input Power and Ground Connections Integration with Building Management System ADM800 Communication ConnectionsAGM300 Network Changing Terminator Switch Settings To MonitorADM800 Connecting External Alarms ADM800 Relay ConnectorADM800 Exterior Schematic ADM800 OperationADM800 Overview ADM800 Screen Displays System ScreenADM800 System Programming Setup ParametersPassword Protection Clock Setup Screen ADM800 Setup ProgrammingSetting the Clock Navigating to the 1st ADM Setup Screen ContrastNumber of AGM Units AGM Baud RateAudible Alarm PasswordEnabling Building Management System Connection Building Management System Stop BitsNavigating to the 2nd ADM Setup Screen Setting Relay ParametersADM Setup Screen #2 AGM Node AddressAGM300 Setup Programming Navigating to the 1st and then 2nd AGM Setup ScreenScreen #1 AGM Setup Screen #1 AGM Setup Screen #2Number of Zones Installed Alarm Ack ModeLocation Zone Hold TimeRe-Zero Mode Loop 2 FactorAuto Zone ChangeAGM Setup #3 Screen Navigating to the 3rd AGM Setup ScreenService Timeout ADM800 Zone Setup Programming Navigating to the 1st Zone Setup ScreenZone Setup Screen #1 DistanceAverage Temperature Navigating To the 2nd Zone Setup ScreenCurrent PPM Log IntervalEvacuation Level Re-Setting the Peak PPM ValueSpill Level General Operation Functional OverviewWorking with the Zone Screen Zone ScreenZone Screen Hold Mode Zone Screen Alarm ModeFault Conditions System Screen Alarm Mode Working with the System ScreenAGM Setup #1 Screen Alarm Log ScreenSystem Screen Fault Mode Alarm Summary Screen Working with AlarmsResponding To Alarms Alarm Detail Screen Alarm Detail ScreenAcknowledging Alarms Alarm Summary Screen Acknowledge ModeWorking with the Trend Screen Overview Log IntervalNavigating To the Trend Screen Trend ScreenFault Screen Working with System FaultsNavigating to the Fault Screen Reset to Factory Default Settings Critical FaultsFault Log Screen Clearing System FaultsViewing Fault Log Adjusting Calibration Factor Working with the Calibration ScreenNavigating to the Calibration Screen Calibration ScreenCalibration Procedure Working with the Diagnostic Screen Navigating to the Diagnostic ScreenDiagnostic Screen Overview Diagnostic ScreenInstruction Service Mode System Screen Service ModeInstruction Appendix AGM300 / ADM800 Maintenance Servicing Inline FilterServicing Air Lines Replacing FusesMA Interface Board Optional AccessoriesIntake Manifolds ADM800 Logic Diagram RS-485 Communication Protocol Modbus RTU ProtocolAGM300 Modbus RTU Operation Protocol DetailsModbus Mode RTU only Key Comm Protocol ParametersSummary of Registers Data Type AbbreviationsRegister Name Number Type Description TIMREV Unused TIMUnused Minutes RS-485BAUDService mode register to change this parameter Mode. do not Modify use zone hold register orMSB LSBGood. do not Modify Zone Data Register 0x12xxh R/W 78 bytesVariable Type Length Description Instruction Instruction Stpppm To Release the Zone Hold Use the Following Sequence of Steps Fault Log Register Register 0x1900, 0x1901h Bytes Instruction Last 100 log points 2 byes per point Point to current readingTime record for each of the 100 log points. The format Service Warranty and ServiceWarranty Field Repair Return ProcedureProducts Covered under Warranty and Service Policy AGM300 Specifications ADM800 Specifications Instruction Headquarters Hunt Valley Circle, New Kensington, PA