Emerson Pack1 package, Pack2 package, Anti-Short Cycle Timer Standard, Lockout Relay Optional

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Operation

T-pack1 package

Includes a low pressure switch, low pressure bypass timer (described above) and fan cycle control.

Fan Cycle Control—Condenser Fan Cycling Control; allows the InteleCool2 unit to provide cooling to the space when the outdoor ambient temperature is lower than 50°F (10°C) and down to -20°F (-28.9°C). The control uses a reverse acting pressure switch mounted on the discharge line that cycles the condenser fan in response to the discharge pressure. On a call for cooling, when the discharge pressure increases to 250 PSIG (1723 kPa), the switch will close and start the condenser fan. When the pressure drips below 170 PSIG (1172 kPa) the switch will open and stop the condenser fan. Dur- ing low outdoor temperatures, the pressure switch cycles the condenser fan to maintain discharge pressure that will allow the system to function.

NOTE

During normal operation in low ambient conditions, the condenser fan will cycle frequently.

T-pack2 package

Includes a low pressure switch, low pressure bypass timer and an adjustable fan cycle control. See descriptions above.

5.4.4Anti-Short Cycle Timer - Standard

The anti-short cycle timer protects the compressor from continuous ON-OFF operation and restarts after momentary power failures. The timer used is adjustable and is set to a minimum of 3 minutes. On start-up, or any call for cooling after an off cycle of more than 3 minutes, the compressor will start immediately.

5.4.5Heater Protection - With Optional Heat

On units supplied with resistance heating, an auto reset heater safety and a one time (replaceable) thermal link protects the unit wiring and prevents excessive heat conditions caused by a dirty air fil- ter or fan failure.

5.4.6Lockout Relay - Optional

The lockout relay latches the detection of a high-pressure condition in the refrigeration circuit and prohibits operation of the compressor until the abnormal pressure conditions are acknowledged. The lockout relay is reset by cycling the unit main power or by changing the setpoint on the thermostat to temporarily eliminate a call for cooling. A normally open set of contacts is provided to terminals 2 and 3 of the customer terminal strip for monitoring the status of the lock out relay when this option is sup- plied without the Common Alarm option.

5.4.7Common Alarm - Optional

Alarm components are an evaporator air sail switch, evaporator high temperature switch, control relays and an adjustable time delay relay with two normally open and two normally closed alarm con- tacts. The alarm contacts will activate in the event of a loss of airflow across the evaporator blower, high evaporator temperature or in the event that the compressor is not functioning due to an abnor- mal pressure condition. The adjustable time delay relay can be adjusted for a delay of up to 90 sec- onds to eliminate nuisance tripping of the alarm contacts. To detect low pressure, the optional low pressure switch with bypass, T-pack1 or T-pack2 must also be selected.

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Contents Liebert InteleCool2 Page Table of Contents Specifications Troubleshooting Maintenance Inspection Checklist PartsFigures ET 0 36 H R P F B T Standard Features GeneralOptional Features Accessories Ancillary ComponentsUnit Installation PreparationRoom Preparation Location ConsiderationsPiping Connections Mounting dimensional dataSee below for keys to dimensions Power Connections DuctingElectrical Connections Control ConnectionsLiebert Thermostat Tele2Installation AdjustmentOutside Air Damper Optional Economizer OptionalChecklist for Complete Installation START-UP Procedure Compressorized Cooling Refrigeration systemEconomizer Cooling Optional Heating OptionalEnthalpy Sensor ActuatorRemote Control Interface Unit ControlsHigh Pressure Standard Refrigeration Control OptionsAnti-Short Cycle Timer Standard Common Alarm OptionalPack1 package Pack2 packageFilters Blower PackageHeat Refrigeration SystemCompressor Thermostatic Expansion ValveAir-Cooled Condenser Mechanical FailureCompressor Replacement Electrical FailurePsig kPa Psig kPA Pressure informationDesign Minimum Maximum Dimensional Data InteleCool2 dimensional data in. mmTechnical Data Technical data, 60 HzCFM m 3/hr 490 22280F DB/19.4C 67F WB indoor ambient kW Btuh Outdoor ambient M3/hr CFMHr CFM Technical data, 50 HzAmbient kW Btuh Optional heater capacity, 60 Hz Optional heater capacity, 50 HzHeater Capacity kW Nominal Heater Rating Ton 10 kWKW Heat No Heat Circ1 Circ2 Model Volts Phase Electrical data, 60 Hz ampsElectrical data, 50 Hz amps Troubleshooting guide Problem Probable Cause RemedyLiebert InteleCool2 Monthly FiltersFan Section Semiannually Compressor SectionParts Refrigeration system parts, 1.5 and 2 ton unitsRefrigeration system parts, 3 ton units Refrigeration system parts, 4-ton units Refrigeration system parts, 5-ton units Electric panel, 1.5- and 2-ton units 11-10Electric panel parts, 3-ton units Electric panel parts, 4-ton unit Electric panel parts, 5-ton unit Motor parts, heater, Economizer, 1.5- and 2-ton units High ambient optionMotor parts, heater, Economizer, 3-ton units Motor parts, heater, Economizer, 4-ton units Motor parts, heater, Economizer, 5-ton units Condenser/piping assembly Crankcase heater reciprocating compressor onlyEvaporator blower Evaporator coil and expansion valveElectric panels Heater assembly Economizer assembly Soft start device To compressor capacitorParts Parts Page Ne t ItiTi 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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