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expansion valve |
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expansion valve [ik′span·shən ‚valv] (mechanical engineering) A valve in which fluid flows under falling pressure and increasing volume. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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By using an ejector that rapidly injects and expands high-pressure refrigerant, the energy that previously was lost in the expansion valve is converted to pressure energy and reused, thus boosting energy efficiency[2]. Although most SEER 10 models use a fixed-bore metering device or a capillary-tube device, many SEER 13 models use a Thermal Expansion Valve (TXV or TEV) that meters the flow of refrigerant. Master-Bilt's Master Controller option controls an electric expansion valve in response to evaporator superheat and return air temperature. |
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