Emerson MINI-MATE2 user manual Optional/Custom Alarms

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Alarms

8.1.7Loss of Power

The Loss of Power Alarm will activate (after power is restored to the unit) if the unit has lost power or the disconnect switch was incorrectly turned off before the unit ON/OFF switch was pressed. A Liebert remote monitoring unit (optional) will immediately indicate loss of power.

8.1.8Short Cycle

A Short Cycle Alarm will occur if the compressor system has exceeded 10 cooling start attempts in a one-hour period. This can be caused by low refrigerant level or room cooling load is small compared to capacity of the unit. Check for leaks, crimped lines and defective components. If room load is low, increase temperature sensitivity to reduce cycle.

8.2Optional/Custom Alarms

8.2.1Change Filter

Periodically, the return air filters in the evaporator must be changed. The Change Filter alarm notifies the user that filter replacement is necessary. A differential air pressure switch closes when the pressure drop across the filters becomes excessive. The switch is adjustable using the procedure on the switch label.

8.2.2High Temperature Sensor

The optional high temperature sensor is a bi-metal operated sensing device with a closed switch under normal conditions. Connected between pins 1-8 and 1-9, this device will shut down the entire unit.

8.2.3Smoke Sensor

The optional smoke sensor constantly samples return air through a tube. Its power supply is located in the electric panel. The smoke sensor shuts down the unit upon detecting smoke, and activates visual and audible alarms. This smoke sensor is not intended to function as or replace any room smoke detection system that may be required by local or national codes. Locate the source of the smoke and follow appropriate emergency procedures.

Liebert® Mini-Mate2™

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Contents Liebert Mini-Mate2 Page Table of Contents Microprocessor Control System Performance Microprocessor ControlsAlarms System OPERATION, Testing and MaintenanceTables Important Safety Instructions Liebert Mini-Mate2 Product Model Information Air-cooled systems-indoor centrifugal condensing unitsPFH 0 67 a a L System configurations-60 Hz System configurations-50 HzIntroduction Standard FEATURES-5 TON Systems Evaporator Section-Split SystemCondensing Unit Section-Split System Chilled Water UnitsOther Standard Control Features System ControlsSwitches and Motors ReheatHumidifier SensorsOptional Configurations-Prop Fan Condensing Units Optional Configurations-Water/Glycol Condensing UnitsFree-Cooling Optional Configurations-Chilled Water Units SHIP-LOOSE ACCESSORIES-FIELD-INSTALLED Ship-Loose Accessories-Field-Installed Installation Considerations Site Preparation and InstallationRoom Preparation Location Considerations Air-cooled systemsCeiling Unit Weights Unit weightsCooling Drycooler Cooling UnitsInstalling the Ceiling Units Close Coupled InstallationsEquipment Inspection Upon Receipt Evaporator Air Distribution Filter BoxConnections for Ducted Systems Piping Connections and Coolant Requirements Drain LineHumidifier Water Supply Line Evaporator external static pressureRecommended refrigerant line sizes Equivalent lengths for various pipe fittings, ft mEquivalent Pipe Liquid Suction Length, ft m Copper PipePipe length and condenser elevation relative to evaporator Vertical rise above evaporator/maximumVertical fall below evaporator Total refrigerant = Units and Lines Quick Connect FittingsRefrigerant charge Line charges refrigerant per 100 ft m of Type L copper tubeDPN000218 Threaded rod and hardware kit installation Electrical ConnectionsPower Connections Control ConnectionsEvaporator unit electrical connections Close coupled installation Piping Connections DuctingGeneral Considerations Considerations for Specific ApplicationsAIR-COOLED Dimensional Data AIR Cooled AIR-COOLED Outdoor Air-Cooled Condensing Unit Installation Weight, lb kgModel # 60Hz 50Hz Rev Water/Glycol Piping Considerations Condensing Unit Fluid RequirementsRegulating Valve WATER/GLYCOL Dimensional Data WATER/GLYCOL DPN000214 Hot Water Reheat Coil Optional free-cooling coil 3-way valve on water/glycol unitsChecklist for Completed Installation Feature Overview Microprocessor ControlMain Menu Menu SetpointsActive Alarms StatusTime DateSetup Operation Restart Time DelayShow DIP Switch 2 C/F DegreesChange Passwords Setup functions, default values and allowable rangesFunction Default Range Calibrate SensorsAlarm Enable Alarm Time DelayCommon Alarm Enable Alarm default time delaysCustom Alarms Standard Custom Alarm MessagesCustom Text LCD Display ContrastRun Diagnostics Available On Rev 1.001.0 and higher Equipment Options SwitchesEquipment switch settings unit control board Switch settings wall box boardTest Outputs Test Control BoardControl menu Control board-inside evaporator Wall box boardTemperature Control Humidity ControlSystem Performance Microprocessor Controls Load Control Features Humidification OperationCommunications Alarms Definitions and Troubleshooting AlarmsCustom Alarms High Head PressureTemperature Humidifier Problem AlarmHigh Water Alarm Air-Cooled SystemsOptional/Custom Alarms System Testing Maintenance and Component OperationSystem OPERATION, Testing and Maintenance Blower System Air DistributionBlower Removal Refrigeration SystemGlycol Solution Maintenance Discharge PressureThermostatic Expansion Valve Air-Cooled Condensing UnitsHot Gas Bypass Hot gas bypassReplacement Procedures Compressor ReplacementMechanical Failure Electrical FailureReplace a Failed Compressor Steam Generating Humidifier-Operation Procedures Humidifier Circuit Board Adjustments Humidifier control board DIP switch settingsReplacing the Humidifier Canister AmpsMaintenance Inspection Checklist Troubleshooting TroubleshootingSymptom Possible Cause Check Or Remedy Cooling cycle too Display ProblemShort Display freezesNe t Ppor t Is tTwor k Care

MINI-MATE2 specifications

The Emerson MINI-MATE2 is a cutting-edge temperature and pressure monitoring device specifically designed for the needs of the refrigeration and HVAC industries. Known for its reliability and user-friendly interface, this compact unit serves as a key tool for technicians and facility managers looking to optimize system performance while ensuring compliance with safety standards.

One of the main features of the MINI-MATE2 is its advanced digital display, which allows users to easily monitor and interpret temperature and pressure readings in real-time. Its highly responsive sensors ensure accurate data collection, vital for maintaining optimal operating conditions. Moreover, the device supports a wide range of refrigerants, making it versatile for different applications, from walk-in coolers to commercial refrigeration systems.

The MINI-MATE2 utilizes state-of-the-art technology to enhance efficiency and performance. Equipped with Bluetooth connectivity, it allows for wireless communication with mobile devices, enabling technicians to track readings and receive alerts remotely. This feature not only improves convenience but also helps in quick decision-making, ensuring timely interventions when anomalies are detected.

Another significant characteristic is its robust construction. Built to withstand harsh environments, the MINI-MATE2 features a durable casing that protects it from physical impacts and environmental factors. This resilience ensures longevity, making it a cost-effective investment for any facility.

In addition, the MINI-MATE2 is designed with user-friendliness in mind. Its intuitive interface means that even technicians with limited experience can easily navigate its functionalities. Quick setup and straightforward operation allow for rapid adoption and extensive use in a variety of settings.

Finally, the MINI-MATE2 also includes built-in data logging capabilities. Users can record historical data for analysis and reporting purposes, which is essential for performing trend analysis and identifying potential issues before they escalate. By providing a comprehensive overview of system performance, the MINI-MATE2 empowers users to make informed decisions that can lead to improved energy efficiency and reduced operational costs.

Overall, the Emerson MINI-MATE2 is an indispensable tool for modern refrigeration and HVAC applications, combining cutting-edge technology, user-friendly design, and essential features to support efficient system management.
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