Journeyman-HVAC, Journeyman-EMS, EMS, Installer, Install, Installation, Service Tech, refridgeration, HVAC, refrigeration, HVAC-R, HVAC/R, diagnostic, commercial, service, mechanical, mechanic, AC, field service, chiller, specialist, HVACR, Electrical, start-up, startup . Employees are regularly required to walk and stand for long periods, hear, drive, sit, bend, kneel, stoop, crouch, crawl, climb, use hands and fingers, and lift and/or move up to 25 pounds, occasionally up to 50 pounds.