Required Skills, knowledge, and certifications or licenses • Verifiable work experience as an HVACR technician Ability to explain and demonstrate knowledge of the following: • Basic and advanced electrical schematics, electrical components, wiring circuits, controls strategies, and control devices • Refrigeration cycle, pressure-temperature relationships, refrigerants, heat transfer, and temperature conversions • Service, troubleshoot, repair and maintain residential, light commercial, and Industrial HVACR equipment • Reverse cycle, calculate COP, and determine the thermal balance point and differentiate between ASHP, WSHP, GHP, and GSHP • Safe use of tools common to the HVACR industry • Cut, bend, flare, swage, solder, and braze copper tubing • Installtion of HVACR equipment including the use of metal, flex, and duct board duct systems • Load calculations, equipment selection, and residential duct system design • Test, adjust, and balance the air and hydronic sides of HVAC/R Systems • Psychrometric concepts that affect human comfort • Direct digital control systems and related operation of HVAC/R equipment • Troubleshooting tests to verify operation of HVAC controls Preferred Skills, knowledge, and certifications or licenses • Verifiable work experience as a commercial HVACR technician. TEAMWORK & SERVICE: Demonstrates a willingness to be of service and exhibits pleasant and courteous behavior toward customers (students, parents, employers, and media), organizational coworkers, and other general public contacts.