Key word search:Littleton, Colorado, Commercial HVAC Technician, Commercial HVAC Service, Commercial HVAC Maintenance, Journeyman HVAC Technician, HVAC Repair, Refrigeration, Field Service Technician HVAC, Preventive Maintenance, HVAC Troubleshooting, VRV, VRF, Air Handlers, RTUs, Chillers, Boilers, EPA Universal, Service Truck, Benefits, Training, Full-time, Full time The essential functions of this position include but are not limited to: Perform advanced and rapid troubleshooting on all commercial HVAC systems, refrigeration systems, economizer, VAV box, and pneumatic controls while working entirely independently.