Service Tech, refridgeration, HVAC, refrigeration, HVAC-R, HVAC/R, diagnostic, commercial, service, install, installer, installation, mechanical, mechanic, AC, field service, chiller, mgr, lead, supervisor, leader, regional, HVACR. The Installation Supervisor also serves as a technical lead and/ormentor to other technicians in their area of responsibility, as well as atechnical resource on projects, depending on business needs and customer demand.