{ "item_title" : "Air Conditioning Book of Secrets", "item_author" : [" Jason A. Neal "], "item_description" : "The Air Conditioning Book of Secrets - Deep Dive Diagnostics & Troubleshooting is a practical HVAC field manual built for technicians who want to move beyond guessing and diagnose systems using actual measurements, patterns, and confirmation tests.Written for working HVAC technicians, this book combines truck-ready reference material with deeper diagnostic guidance for air-conditioning and heat-pump systems. It is designed to help technicians understand not only what a reading means, but also what to check next, how to confirm the problem, and how to verify the repair.Free Tools & DownloadsExtend the Deep Dive method beyond the book with free field tools designed for real service calls: Website with worksheet automatic calculations, and diagnostic guidanceFree mobile app with worksheet automatic calculations, and diagnostic guidanceFree downloadable and printable worksheets from the bookCreate and send reports by email, text, or printSave jobs for later reference and return appointmentsInside, You'll Find Practical Guidance for Diagnosing: Airflow and static-pressure problemsRefrigerant charge and metering-device issuesSuperheat and subcoolingEvaporator and condenser temperature differencesTXV, EEV, and EXV performanceCompressor operation and amperageCompression ratioPsychrometric and airside capacityElectrical components, capacitors, and motorsHeat pumps, mini-splits, inverters, and sensorsDuct capacity and distributionRoom airflow and air-change calculationsRefrigerant pressure-temperature relationshipsDifficult system problems where several faults can produce similar symptomsThe book also includes diagnostic worksheets, pressure-temperature references, field-screening charts, calculation references, quick diagnostic patterns, and step-by-step confirmation workflows designed for real service calls.A central principle of the Deep Dive method is: Diagnose the pattern, not one reading.Rather than condemning a component from a single abnormal number, technicians are encouraged to establish proper operating conditions, identify the required readings, compare them with the correct target or source, test competing explanations, confirm the failure, make the repair, and then verify that the system is actually operating correctly.Whether you are an experienced technician looking for a deeper diagnostic reference or a developing technician learning how individual readings work together, Deep Dive Diagnostics & Troubleshooting is designed to be a practical tool you can return to again and again in the field.", "item_img_path" : "https://covers3.booksamillion.com/covers/bam/9/79/817/689/9798176894042_b.jpg", "price_data" : { "retail_price" : "99.00", "online_price" : "99.00", "our_price" : "99.00", "club_price" : "99.00", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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