As a Commercial HVAC-R Technician II at ABM, you'll maintain, troubleshoot, and repair a diverse range of commercial and industrial systems across Tucson, including chilled water systems, boilers, controls, package units, split systems, ice machines, and walk-in coolers and freezers. Troubleshoot, calibrate, and adjust pilots, thermostats, burners, transformers, controls, relays, heaters, elements, switches, and other electrical system components.