Emerson 2 user manual Troubleshooting guide, Problem Probable Cause Remedy

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Troubleshooting

8.0TROUBLESHOOTING

Table 14 Troubleshooting guide

Problem

Probable Cause

Remedy

 

 

 

Unit will not start

No power to unit

Check voltage to input circuit breaker.

 

 

 

 

Control voltage circuit

Locate short and reset breaker.

 

breaker open

 

 

Shut off by external

Check operation of thermostat.

 

thermostat or stat is

 

 

defective

 

No cooling

Low refrigerant

Check with gauges.

 

charge

 

 

Compressor contactor

Check voltage at contactor. If not present refer to print and determine

 

not pulling in

voltage loss. Check enthalpy sensor for full CCW or D setting.

 

No output from

Check operation of stat. Should have voltage output to Y terminal during

 

thermostat

cooling.

Unit cycles on

Loss or restriction of

Check condenser blower assembly for proper operation. Check for dirty

high pressure switch

air flow

coil or inlet grille restriction.

 

Defective fan cycling

Switch should make @ 240 PSIG ±10 (1655 kPa ±68.9). (Check settings

 

control

on adjustable switch when supplied.)

Heat does not operate

No voltage output

Check stat for proper output to W terminal.

 

from thermostat

 

 

Fuseable link blown

Check for open and replace.

 

 

 

 

Bad contactor

Check for open and replace.

 

 

 

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Contents Liebert InteleCool2 Page Table of Contents Troubleshooting Maintenance Inspection Checklist Parts SpecificationsFigures ET 0 36 H R P F B T General Standard FeaturesOptional Features Ancillary Components AccessoriesPreparation Unit InstallationRoom Preparation Location ConsiderationsMounting dimensional data See below for keys to dimensionsPiping Connections Ducting Power ConnectionsElectrical Connections Control ConnectionsTele2 Liebert ThermostatAdjustment InstallationOutside Air Damper Optional Economizer OptionalChecklist for Complete Installation START-UP Procedure Refrigeration system Compressorized CoolingHeating Optional Economizer Cooling OptionalEnthalpy Sensor ActuatorUnit Controls Remote Control InterfaceHigh Pressure Standard Refrigeration Control OptionsCommon Alarm Optional Anti-Short Cycle Timer StandardPack1 package Pack2 packageBlower Package FiltersHeat Refrigeration SystemThermostatic Expansion Valve CompressorAir-Cooled Condenser Mechanical FailureElectrical Failure Compressor ReplacementPressure information Design Minimum MaximumPsig kPa Psig kPA InteleCool2 dimensional data in. mm Dimensional DataTechnical data, 60 Hz Technical Data490 222 CFM m 3/hrM3/hr CFM 80F DB/19.4C 67F WB indoor ambient kW Btuh Outdoor ambientTechnical data, 50 Hz Ambient kW BtuhHr CFM Optional heater capacity, 50 Hz Optional heater capacity, 60 HzHeater Capacity kW Nominal Heater Rating Ton 10 kWElectrical data, 60 Hz amps KW Heat No Heat Circ1 Circ2 Model Volts PhaseElectrical data, 50 Hz amps Problem Probable Cause Remedy Troubleshooting guideMonthly Filters Liebert InteleCool2Fan Section Semiannually Compressor SectionRefrigeration system parts, 1.5 and 2 ton units PartsRefrigeration system parts, 3 ton units Refrigeration system parts, 4-ton units Refrigeration system parts, 5-ton units 11-10 Electric panel, 1.5- and 2-ton unitsElectric panel parts, 3-ton units Electric panel parts, 4-ton unit Electric panel parts, 5-ton unit High ambient option Motor parts, heater, Economizer, 1.5- and 2-ton unitsMotor parts, heater, Economizer, 3-ton units Motor parts, heater, Economizer, 4-ton units Motor parts, heater, Economizer, 5-ton units Crankcase heater reciprocating compressor only Condenser/piping assemblyEvaporator coil and expansion valve Evaporator blowerElectric panels Heater assembly Economizer assembly To compressor capacitor Soft start deviceParts Parts Page Iti Ne tTi n That

2 specifications

Emerson 2 is an advanced automation and control technologies platform designed to enhance operational efficiencies across various industries. This next-generation system builds upon its predecessor, incorporating cutting-edge technologies that facilitate seamless integration and data-driven decision-making.

One of the main features of Emerson 2 is its robust IIoT (Industrial Internet of Things) capabilities. These features allow for real-time data collection and monitoring, which empower users to gain insights into their processes. By leveraging smart sensors and devices, Emerson 2 ensures that vital information is captured and communicated effectively, leading to improved process optimization and reduced downtime.

Emerson 2 also offers enhanced analytics tools, enabling organizations to analyze large volumes of data efficiently. Users can utilize advanced algorithms and machine learning models to identify patterns, predict equipment failures, and optimize maintenance schedules. This predictive maintenance capability is critical for minimizing operational disruptions and maximizing asset life.

The platform is designed with user experience in mind, featuring an intuitive interface that simplifies navigation and enhances usability. Operators can easily access real-time dashboards and visualizations, allowing them to make informed decisions rapidly. Customizable reporting tools further enhance user interaction, enabling teams to generate reports that meet their specific operational needs.

Security is a top priority for Emerson 2, which incorporates advanced cybersecurity measures to protect sensitive data. With built-in encryption protocols and secure communication standards, Emerson 2 ensures that information is safeguarded against potential threats and cyberattacks.

Another noteworthy characteristic of Emerson 2 is its scalability. The platform is designed to grow with businesses, allowing for the integration of additional sensors, devices, and modules as operational demands evolve. This flexibility means that companies can adapt their automation strategies without overhauling their entire system.

Finally, Emerson 2 supports various industry standards and protocols, facilitating interoperability with existing systems and equipment. This feature enables a smoother transition for businesses looking to upgrade their automation capabilities without extensive overhauls.

In summary, Emerson 2 represents a significant leap in automation technology, featuring IIoT integration, advanced analytics, user-friendly interfaces, robust security, scalability, and interoperability. As industries seek smarter and more efficient solutions, Emerson 2 stands out as a versatile platform equipped to meet the challenges of modern manufacturing and process control.
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