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Itisintendedforthoseengineers,ThistextbookoutlineskeyHVACfundamentalsbasedontheASHRAEHandbook FundamentalsFindoutwhattoexpect whenworkingwithanHVACcontractorThesystemofmotors,ducts,fans,controls,andheatexchangeunitswhichdeliversheatedorcooledairtovariousparts ofafacilityThepurposeoftheHVACsystemistoaddorremoveheatandmoistureinordertomaintainthedesiredenvironmentalconditionsNumerous classroomanddesignofficeexperiencesremindusofthevalueofcontinuousawarenessofthephysicsofHVACprocessesintheconductofdesignworkLearn howtochooseandinstallanewsystem,andhowtoHVACBASICSINTRODUCTION:AirHandlingSystemComponents/Layout:DampersFiltersCooling CoilHeatingCoilHumidifierSupplyFanDiffusersReturnFanAirFlow:Airentersthesystemfromtheoutsidethroughanairductandismixedjustbeforethe filterswithreturnairfromthespaceWhendiscussingHVACcontrols,therearetwomaincircuitsthatwefocusonItissuitablebothasatextbookandasa referencebookforundergraduateengineeringcoursesinthefieldofairconditioning,heating,andventilation;forsimilarcoursesattechnicalandvocationalreview ofthebasicphysicsofheating,ventilating,andairconditioning(HVAC)designindiscussionsoffluidmechanics,thermodynamics,heattransfer,and psychrometricsThiscircuitcanbeeithersingle-phaseorthree-phase,andpowertheequipmentwhichisdoingtheworkofeitherheating,coolingorventilating HVAC(pronouncedeither"H-V-A-C"or,occasionally,"H-vak")isanacronymthatstandsfor“heating,ventilationandairconditioning”DrSamCMHui DepartmentofMechanicalEngineeringTheUniversityofHongKongE-mail:cmhui@LearningOutcomesIntroductionIntroducingthePsychrometricChartBasic Air-ConditioningSystemZonedAir-ConditioningSystemsChoosinganAir-Conditioningsupport@AirConditioningTHECOMPLETEGUIDEFORHOME OWNERSBuyingANewAirConditionerBuyingANewAirThisisanintroductiontoairconditioningsystems(frequentlyreferredtoasHVACsystems–heating,ventilatingandairconditioningsystems).Learnhowtochooseandinstallanewsystem,andhowtomaintainitforoptimalperformanceandcomfort.All controlsystemsoperateinaccordancewithfewbasicprinciplesbutbeforewediscussthese,let’saddressfewfundamentalsoftheHVACsystemfirstPrinciples ofHeating,Ventilating,andAirConditioning,HVAC:HandbookofHeating,VentilationandAirConditioningforDesignandImplementation(PDF)HVAC: HandbookofHeating,VentilationandAirConditioningforAbeginner'sguidetoHVAC,coveringthebasicsofparts,processes,typesandclimateimpactonyour systemHVACsometimesreferredtoasclimateIntroductiontoHVACThesecondcircuitwewillfocusonisthecontrolcircuiteasytounderstand,treatmentof buildingHVACsystems,frombasicprinciplesthroughdesignandoperationThefirstbeingthepowercircuitHVACsometimesreferredtoasclimatecontrolisa processoftreatingairtocontrolitstemperature,humidity,cleanliness,anddistributiontomeettherequirementsoftheconditionedspaceTheapplicationof Heating,Ventilating,andAir-Conditioning(HVAC)controlsstartswithanunderstandingofthebuildingandtheuseofthespacestobeconditionedandcontrolled. Abeginner'sguidetoHVAC,coveringthebasicsofparts,processes,typesandclimateimpactonyoursystemTheHVACalsoprovidesventilationandair movementevenwhennoheatingorHVAC(pronouncedeither"H-V-A-C"or,occasionally,"H-vak")isanacronymthatstandsfor“heating,ventilationandair conditioning”