Trane trg-trc005-en manual Expansion Devices

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period four

Expansion Devices

notes

Refrigeration

System Components

period four

Expansion Devices

Figure 38

The final major component to be discussed is the expansion device.

Expansion Device

 

D

condenser

C

pressure

expansion

 

 

device

 

compressor

 

 

 

 

A

evaporator

B

enthalpy

Figure 39

An expansion device is used to maintain a pressure difference between the high-pressure (condenser) and low-pressure (evaporator) sides of the system established by the compressor. This pressure difference allows the evaporator temperature to be low enough to absorb heat from the air or water to be cooled, while also allowing the refrigerant to be at a high enough temperature in the condenser to reject heat to air or water at normally available temperatures.

There are several types of expansion devices, including expansion valves (thermostatic or electronic), capillary tubes, and orifices. This clinic will limit its discussion to thermostatic expansion valves (TXVs). Other expansion devices perform essentially the same function.

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TRG-TRC005-EN

Image 33
Contents Air Conditioning Clinic Refrigeration System Components One of the Fundamental Series Comment CardBusiness Reply Mail Refrigeration System Components Refrigeration System Components PrefaceContents TRG-TRC005-EN Vapor-Compression Refrigeration IntroductionRefrigeration Cycle Refrigeration CyclePeriod one Condenser Condensers Air-Cooled CondenserAir-Cooled Condensers Effect of Subcooling Centrifugal Fan Air-Cooled Condenser Evaporative CondenserEvaporative Condensers Water-Cooled Condensers Water-Cooled CondenserCooling Tower Condenser Control Condenser CapacityCondenser Control Condensing Temperature Control Vary Condenser Water Flow Rate Vary Entering Water TemperatureCooling Tower Bypass Condenser Flooding Control Air-Cooled Condenser ControlCondensers Evaporators Finned-Tube EvaporatorFinned-Tube Evaporators Turbulent Flow Superheat Shell-and-Tube Evaporators Shell-and-Tube EvaporatorEvaporator Control Evaporator ControlFace-Split Arrangement Finned-Tube Evaporator Control80ºF Intertwined Arrangement Row-Split Arrangement Shell-and-Tube Evaporator Control Expansion Device Expansion DevicesTXV Control Thermostatic Expansion ValveTXV TXV TXV Operation Psia TXV Too much superheat Superheat SettingAccessories Solenoid ValveSolenoid Valve Period five Liquid-Line Filter Drier Liquid-Line Filter DrierSealed type Moisture-Indicating Sight Glass Moisture-Indicating Sight GlassSuction Line Filter Suction Line FilterHot Gas Muffler Hot Gas MufflerShutoff Valve Shutoff ValveAccess Port Access PortReview-Period One ReviewAir-cooled condenser Review-Period TwoReview-Period Four Review-Period ThreeReview-Period Five For more information, refer to the following references Questions for Period QuizQuiz To C To G AnswersGlossary Glossary Glossary Trane Company

trg-trc005-en specifications

The Trane TRG-TRC005-EN is a sophisticated and versatile HVAC control system designed for modern commercial buildings. As part of Trane's innovative lineup, this device offers advanced functionalities to enhance energy efficiency, comfort, and operational ease. The TRG-TRC005-EN is equipped with cutting-edge technologies that make it an essential tool for facility managers and HVAC professionals.

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