HVACR 201 [平裝]

內容簡介

The second installment in a series of useful and resourceful guides, HVACR 201, continues to build upon the basics of the HVACR trade. The result of a joint effort by industry leading Air Conditioning Contractors of America (ACCA), PHCC Educational Foundation Plumbing Apprentice & Journeyman Training Committee (PHCC Educational Foundation), and the Refrigeration Service Engineers Society (RSES), the book begins with simpler HVACR concepts and progresses into increasingly complex theories and skills. Starting with coverage of all of the important components of a system, the book advances to deal with topics in electrical ,heating, motors , and cooling- then moving to troubleshooting and installation procedures. Theoretical knowledge is presented alongside practical, industry-relevant examples, allowing both entry-level technicians and 2nd year apprentices to easily learn and apply key HVACR concepts.
 

目錄
1) Year 2, First Semestera) Chapter One: Review of Refrigeration Cyclei) Basic refrigeration cycleii) Saturation, superheat and subcoolingiii) Compressorsiv) Metering devicesv) evaporatorsb) Chapter Two: Compressorsi) Reciprocatingii) Scroll 2 stageiii) Hermetic and semi-hermiticiv) Rotary types, how they work, applicationsc) Chapter Three: Refrigerants and Lubricants(1) Applications and required lubricants(2) CFCs, HCFCs, chemical strength(3) Safety and handling(4) EPA certification(5) Recovery and recycled) Chapter Four: Refrigerant Handling Certification e) Chapter Five: Condensers(1) Air cooled(2) Water cooled(3) Evaporativef) Chapter Six: Metering Devicesi) Capillary tubesii) Fixed orifice/plateiii) Thermostatic expansion valves (TXV)iv) Electronic expansion valves (EXV)g) Chapter Seven: Accessoriesi) Receiversii) Accumulatorsiii) Service valves/access portsiv) Suction/liquid line heat exchangersv) Low ambient controlsvi) Reversing valves (defrost, heat pump)vii) Relief valvesviii) High/low pressure controlix) Vibration eliminators x) Crankcase heaterh) Chapter Eight: Evaporatorsi) Types (plate, fin) and applicationsii) Latent and sensible heat removaliii) Superheativ) Direct expansion and floodedv) Pressure dropvi) Moisture removalvii) Defrost applicationsi) Chapter Nine: Evacuation and Chargingi) Leak testing methodsii) Troubleshooting iii) Recoveryiv) Vacuum pumpsv) Dehydrationvi) Safetyj) Chapter Ten: Heatingi) Types of heating appliancesii) Components, burners and valvesiii) Boilers: water and streamiv) Sequence of operationv) Pumps vi) Ventingvii) Gas pipe capacityviii) Ignition devicesix) Combustion process and testingx) Code and safetyxi) Carbon monoxidexii) Electric and stripxiii) Radiantxiv) Ventingxv) Combustion and secondary airxvi) Gas manifoldsxvii) Temperature controlsxviii) Safety and Limit controlsxix) Sequence of operationk) Chapter Eleven: Electricali) Ohms law review and applicationii) Transformers, voltage, line vs loadiii) Types of wire and wire sizesiv) Circuits and schematics v) Relaysvi) Capacitorsvii) XFMRviii) Logicix) Sources: single and 3 phasex) Switches and loadsxi) Contactorsxii) Troubleshooting/testingxiii) Startersxiv) Overload protectors/overcurrent protection (fuses & circuit breakers)xv) Overcurrent/fusesxvi) Groundingxvii) Breakersxviii) OCPDsxix) Bondingxx) Sizingxxi) Disconnects and wire sizingl) Chapter Twelve: Electrical Troubleshooting i) Symptoms, possible causes and application to instrumentationii) Circuits, complete, short, open and groundediii) Troubleshooting iv) Effects of loose wire connectionsv) Wiring diagrams used for troubleshootingvi) Use of meter/with electrical schematicsvii) Shorts, open, groundsviii) Loose neutralsm) Chapter Thirteen: Introduction to Motorsi) Types of motors: squirrel cage, induction, single phase, dual phase, three phase and variable speedii) Magnetismiii) Induced currentiv) Electromagnetismv) Motor torquevi) Starting relaysvii) Starting switchviii) Starting, relays ix) Efficiencyx) Heat and temperaturexi) Dimensions xii) Identifying motor start and run windingsxiii) Mechanical and installation considerationsxiv) Shaftsxv) Lubrication and bearingsxvi) Noisy operationxvii) Electrical connectionsxviii) Operating limitationsxix) Motor overload protectionsxx) Nameplate data2) Year Two, Second Semestera) Chapter Fourteen: Cooling Equipmenti) Types of units: RTU, split, package, unitary, built-up, matched, ductless, chillers (air and water cooled), cooling tower, chilled water, CW, water treatment intro, pumpingii) Fluidsiii) Closed vs open loopiv) Basic sizingv) CFM/tonvi) Sensible vs. latent heatvii) Velocity over face of coilviii) Economizersix) Outside airx) Duct sizing - supply vs. returnxi) Duct calculator b) Chapter Fifteen: Mechanical Troubleshootingi) Troubleshooting: refrigeration, A/C, furnace and air flow problemsii) Case studies of components/systemsiii) Symptoms/problems/causes; refrigeration, cooling, heating, CSIc) Chapter Sixteen: Advanced Installation Techniquesi) Best practicesii) Piping: Dielectric unions and supportiii) Duct sealing systemsiv) Common code violations and solutionsv) Vibration and noise issuesd) Chapter Seventeen: Control Systemsi) Types of thermostatsii) Built-in thermostat functionsiii) Heating/cooling controlsiv) Sequence of operationv) Troubleshooting componentsvi) Pressure switchesvii) Loss of chargee) Chapter Eighteen: Psychrometricsi) Why learn psychrometrics?ii) Psychrometric chart terminologyiii) Human comfort zoneiv) Gas lawsv) Sling psychrometervi) What do the lines on the psychrometric chart mean?vii) Using the psychrometric chartviii) Finding the properties of airix) IAQ: mold and moisture issuesx) Moisture control: humidification and dehumidification, system, room or whole house moisture controlf) Chapter Nineteen: Basic Sizing i) Heat transfer theoryii) Steps in sizing equipmentiii) Importance of heating and cooling load calculationsiv) Relationships between load, equipment and ductv) Location of ducts/proper installation/sealingvi) Why match condensers, evaporators and blowers?