HVACR Quick-Reference Handbook
: RSES (Refrigeration Service Engineers Society)
Every HVACR service contractor or technician needs this book!
Contains many frequently-used equations, conversion charts, tables and reference materials, including: industry glossary of terms, equations/equivalents/conversions (electric, volumetric, distance, weight, etc.), tables (duct sizing, gain/loss, electronic coding, etc.), symbols used in electrical schematics and piping layouts, and many refrigerant P-T charts!
isbn-- 9781616071325quick-add/hvac-online-training-study-course /