EMCOR Group - - Responsibilities: Identify problems with heating, ventilation, and/or air conditioning systems for commercial and industrial customers; Carefully examine equipment to diagnose and troubleshoot problems; Assist HVAC foreman in the repair or replacement of defective equipment, mechanical components, or wiring within the HVAC system; Perform preventive maintenance tasks and inspections on HVAC equipment; Inspect HVAC systems for effectiveness and safety