Emerson MINI-MATE2 user manual Test Outputs, Test Control Board

Page 53

Microprocessor Control

Test Outputs

When this feature is selected, the controller is effectively turned off. When stepping from one load to the next, the previous load is automatically turned off. The loads can also be toggled On and Off by selecting “ENTER.” Once turned on, the output will remain on for five minutes unless toggled off or the test outputs function is exited by selecting “MENU/ESC” (Compressor is limited to 15 seconds On to prevent damage.)

NOTICE

Risk of overheating the compressor during the Test Outputs mode. Can cause compressor damage.

Testing the compressor output for more than a few seconds can damage the compressor. Do not operate the unit in the Test Outputs mode any longer than is necessary for troubleshooting.

NOTICE

Risk of extended unit operation in the Test Outputs mode for troubleshooting. Can cause damage to unit.

DO NOT operate unit in the Test Outputs mode any longer than is necessary for troubleshooting

The outputs are as follows:

•Normal Fan: Normal speed fan contactor

•Humidifier: Humidifier contactor

•Cool: Compressor contactor (Valve opens on chilled water units)

•HGBP: Hot gas bypass valve

•Reheat: Reheat contactor

•Common Alarm: Common alarm relay

NOTE

Fan turned on with all loads.

Test Control Board

By selecting this function, the microcontroller will perform a self test lasting approximately 10 seconds. When the test is complete, the display will show the ROM checksum, ROM part number and firmware revision number.

47

Liebert® Mini-Mate2™

Page 52 Page 54
Image 53
Page 52 Page 54
Contents Liebert Mini-Mate2 Page Table of Contents System Performance Microprocessor Controls Microprocessor ControlSystem OPERATION, Testing and Maintenance AlarmsTables Important Safety Instructions Liebert Mini-Mate2 Air-cooled systems-indoor centrifugal condensing units Product Model InformationPFH 0 67 a a L System configurations-50 Hz System configurations-60 HzIntroduction Evaporator Section-Split System Standard FEATURES-5 TON SystemsCondensing Unit Section-Split System Chilled Water UnitsSystem Controls Other Standard Control FeaturesReheat Switches and MotorsHumidifier SensorsFree-Cooling Optional Configurations-Prop Fan Condensing UnitsOptional Configurations-Water/Glycol Condensing Units Optional Configurations-Chilled Water Units SHIP-LOOSE ACCESSORIES-FIELD-INSTALLED Ship-Loose Accessories-Field-Installed Room Preparation Installation ConsiderationsSite Preparation and Installation Air-cooled systems Location ConsiderationsUnit weights Ceiling Unit WeightsCooling Drycooler Cooling UnitsClose Coupled Installations Installing the Ceiling UnitsEquipment Inspection Upon Receipt Evaporator Air Distribution Filter BoxPiping Connections and Coolant Requirements Drain Line Connections for Ducted SystemsHumidifier Water Supply Line Evaporator external static pressureEquivalent lengths for various pipe fittings, ft m Recommended refrigerant line sizesEquivalent Pipe Liquid Suction Length, ft m Copper PipeVertical fall below evaporator Pipe length and condenser elevation relative to evaporatorVertical rise above evaporator/maximum Quick Connect Fittings Total refrigerant = Units and LinesRefrigerant charge Line charges refrigerant per 100 ft m of Type L copper tubeDPN000218 Electrical Connections Threaded rod and hardware kit installationControl Connections Power ConnectionsEvaporator unit electrical connections Close coupled installation Ducting Piping ConnectionsGeneral Considerations Considerations for Specific ApplicationsAIR-COOLED Dimensional Data AIR Cooled AIR-COOLED Model # 60Hz 50Hz Outdoor Air-Cooled Condensing Unit InstallationWeight, lb kg Rev Regulating Valve Water/Glycol Piping ConsiderationsCondensing Unit Fluid Requirements WATER/GLYCOL Dimensional Data WATER/GLYCOL DPN000214 Optional free-cooling coil 3-way valve on water/glycol units Hot Water Reheat CoilChecklist for Completed Installation Microprocessor Control Feature OverviewSetpoints Main Menu MenuStatus Active AlarmsTime DateRestart Time Delay Setup OperationShow DIP Switch 2 C/F DegreesSetup functions, default values and allowable ranges Change PasswordsFunction Default Range Calibrate SensorsAlarm Time Delay Alarm EnableCommon Alarm Enable Alarm default time delaysStandard Custom Alarm Messages Custom AlarmsCustom Text LCD Display ContrastEquipment Options Switches Run Diagnostics Available On Rev 1.001.0 and higherEquipment switch settings unit control board Switch settings wall box boardTest Control Board Test OutputsControl menu Wall box board Control board-inside evaporatorSystem Performance Microprocessor Controls Temperature ControlHumidity Control Communications Load Control FeaturesHumidification Operation Alarms Alarms Definitions and TroubleshootingCustom Alarms High Head PressureHumidifier Problem Alarm TemperatureHigh Water Alarm Air-Cooled SystemsOptional/Custom Alarms System OPERATION, Testing and Maintenance System TestingMaintenance and Component Operation Air Distribution Blower SystemBlower Removal Refrigeration SystemDischarge Pressure Glycol Solution MaintenanceThermostatic Expansion Valve Air-Cooled Condensing UnitsHot gas bypass Hot Gas BypassCompressor Replacement Replacement ProceduresMechanical Failure Electrical FailureReplace a Failed Compressor Steam Generating Humidifier-Operation Procedures Humidifier control board DIP switch settings Humidifier Circuit Board AdjustmentsReplacing the Humidifier Canister AmpsMaintenance Inspection Checklist Troubleshooting TroubleshootingDisplay Problem Symptom Possible Cause Check Or Remedy Cooling cycle tooShort Display freezesPpor t Is t Ne 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.
Top Page Image Contents