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HVAC 313A prep Questions and Answers | New One | Grade A+

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senible heat Ans: Heat that can be measured by a thermometer latent heat Ans: heat required to create a phase change without a change in temperature. Phychrometric Ans: The study of air and its properties What is enthapy? Ans: The total measure of heat content in the air and is made up of sensible and latent heat measured in BTU per pound of air Cooling anticipator is wired how? Ans: Parallel with temp control How is heating anticipator wired? Ans: In series with t-stat control Net oil pressure opertating an oil pressure failure control is? Ans: Oil pump discharge pressure minus crackcasae pressure. What is the voltage across L&M on oil pressure lock out? Ans: 230V what is a Refractometer Ans: is used to verify precentage of residual oil in converted system using POE oil. What is the procedure to shut down a chill water system. Ans: 1. Compressor off 2. Condenser water pump off. 3. Cooling tower fan off. 4. Chilled water pump of


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