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ARTICLES

Ice Breaker: Selecting Thermostatic Expansion Valves

April 2, 2012

By Joe Marchese

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One of the basic components selected when installing a walk-in cooler/freezer or any field-assembled refrigeration system is the metering device, typically the thermostatic expansion valve (TXV). The TXV needs to be selected to match the Btu capacity of the system’s evaporator and compressor.

The Professor: Restricted TXV Metering Device

January 17, 2011

By John Tomczyk

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This article explores how a restricted metering device will affect system performance and efficiency. The system is a commercial refrigeration system with a TXV as the metering device. The refrigerant being used is HFC-134a. Very similar results will occur if an automatic expansion valve (AXV) is used.

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2013 ACCA Conference & IE3 Expo

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Selling Zoning is Easier Than You Might Think

This overview of the benefits of zoning includes tips for selling to consumers and businesses. Tom Jackson discusses options for new construction and retrofit, as well as some ways a residential contractor can get into the light commercial business with zoning products. Speaker: Tom Jackson, CEO, Jackson Systems

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