Emerson MINI-MATE2 user manual Hot Water Reheat Coil

Page 43

Site Preparation and Installation

Figure 24 Optional free-cooling coil (3-way valve) on water/glycol units

Bleed Valve

Fluid

Return

From Unit

Fluid

Supply

To Unit

Free-Cooling

Control

Valve

 

Tube in

 

Tube

 

Condenser

Free-Cooling

Fluid

Return

Coil

From

 

Shutoff*

Valves

Hose* Bibs

Temperature Stat

 

 

Unit

 

Shutoff*

Hose*

 

3-Way Water

Fluid

Regulating

Valves

 

Bibs

Supply

Valve

 

 

To Unit

(Optional)

NOTE: RECOMMENDED PIPING FOR UNITS WITH FREE-COOLING COIL OPTION AND WATER/GLYCOL CONDENSER.

5.8.2Hot Water Reheat Coil

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIELD PIPING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FACTORY PIPING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

* Components are not supplied by Emerson

DPN000219

 

but are recommended for proper circuit

Rev. 3

 

operation and maintenance.

Building hot water can be piped to a factory-installed hot water reheat coil, located downstream of the cooling coil. A factory-installed solenoid valve opens upon a call for reheat.

Figure 25 Optional hot water reheat (two-way valve)

 

 

Bleed Valve

 

 

Hot Water

 

Water

Reheat

 

Control

Water

Supply

Valve

To Unit

Return

 

 

 

From Unit

 

 

Shutoff*

 

Y-Strainer

Valves

 

Hot Water

Reheat

Coil

Hose*

Bibs

Note: Hot water reheat available only on chilled water units.

*Components are not supplied by Emerson but are recommended for proper circuit operation and maintenance.

FIELD PIPING

FACTORY PIPING

DPN000219

Rev. 3

37

Liebert® Mini-Mate2

Image 43
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 Chilled Water Units Standard FEATURES-5 TON SystemsEvaporator Section-Split System Condensing Unit Section-Split SystemSystem Controls Other Standard Control FeaturesSensors Switches and MotorsReheat HumidifierOptional Configurations-Water/Glycol Condensing Units Optional Configurations-Prop Fan Condensing UnitsFree-Cooling Optional Configurations-Chilled Water Units SHIP-LOOSE ACCESSORIES-FIELD-INSTALLED Ship-Loose Accessories-Field-Installed Site Preparation and Installation Installation ConsiderationsRoom Preparation Air-cooled systems Location ConsiderationsCooling Units Ceiling Unit WeightsUnit weights Cooling DrycoolerEvaporator Air Distribution Filter Box Installing the Ceiling UnitsClose Coupled Installations Equipment Inspection Upon ReceiptEvaporator external static pressure Connections for Ducted SystemsPiping Connections and Coolant Requirements Drain Line Humidifier Water Supply LineCopper Pipe Recommended refrigerant line sizesEquivalent lengths for various pipe fittings, ft m Equivalent Pipe Liquid Suction Length, ft mVertical rise above evaporator/maximum Pipe length and condenser elevation relative to evaporatorVertical fall below evaporator Line charges refrigerant per 100 ft m of Type L copper tube Total refrigerant = Units and LinesQuick Connect Fittings Refrigerant chargeDPN000218 Electrical Connections Threaded rod and hardware kit installationControl Connections Power ConnectionsEvaporator unit electrical connections Close coupled installation Considerations for Specific Applications Piping ConnectionsDucting General ConsiderationsAIR-COOLED Dimensional Data AIR Cooled AIR-COOLED Weight, lb kg Outdoor Air-Cooled Condensing Unit InstallationModel # 60Hz 50Hz Rev Condensing Unit Fluid Requirements Water/Glycol Piping ConsiderationsRegulating Valve 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 MenuDate Active AlarmsStatus Time2 C/F Degrees Setup OperationRestart Time Delay Show DIP SwitchCalibrate Sensors Change PasswordsSetup functions, default values and allowable ranges Function Default RangeAlarm default time delays Alarm EnableAlarm Time Delay Common Alarm EnableLCD Display Contrast Custom AlarmsStandard Custom Alarm Messages Custom TextSwitch settings wall box board Run Diagnostics Available On Rev 1.001.0 and higherEquipment Options Switches Equipment switch settings unit control boardTest Control Board Test OutputsControl menu Wall box board Control board-inside evaporatorHumidity Control Temperature ControlSystem Performance Microprocessor Controls Humidification Operation Load Control FeaturesCommunications High Head Pressure Alarms Definitions and TroubleshootingAlarms Custom AlarmsAir-Cooled Systems TemperatureHumidifier Problem Alarm High Water AlarmOptional/Custom Alarms Maintenance and Component Operation System TestingSystem OPERATION, Testing and Maintenance Refrigeration System Blower SystemAir Distribution Blower RemovalAir-Cooled Condensing Units Glycol Solution MaintenanceDischarge Pressure Thermostatic Expansion ValveHot gas bypass Hot Gas BypassElectrical Failure Replacement ProceduresCompressor Replacement Mechanical FailureReplace a Failed Compressor Steam Generating Humidifier-Operation Procedures Amps Humidifier Circuit Board AdjustmentsHumidifier control board DIP switch settings Replacing the Humidifier CanisterMaintenance Inspection Checklist Troubleshooting TroubleshootingDisplay freezes Symptom Possible Cause Check Or Remedy Cooling cycle tooDisplay Problem ShortCare Ne tPpor t Is t Twor k

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.