HVAC Mechanic

The Heating, Ventilation, and Air-Conditioning (HVAC) Mechanic operates, maintains, calibrates, troubleshoots, repairs, programs, and balances real property HVAC equipment and facility-related control systems at CMI’s customer site in Omaha, Nebraska.

Key Job Functions

• Support continuous, safe, efficient, and reliable operation of mission-critical facilities, including primary HVAC systems serving communications and server rooms, Computer Room Air Conditioning (CRAC) units, associated ductwork, controls, and water-treatment components.

• Operate, inspect, maintain, calibrate, troubleshoot, repair, program, and balance HVAC equipment and facility-related control systems in accordance with manufacturer requirements, applicable Unified Facilities Criteria, ASHRAE standards, and approved maintenance procedures.

• Maintain mission-critical HVAC systems, including primary units serving communications and server rooms and all Computer Room Air Conditioning (CRAC) units, to support continuous facility readiness and required critical-system availability.

• Perform predictive, preventive, corrective, and emergency maintenance; respond to priority work orders; mitigate equipment failures; and support root-cause analyses for emergencies, repeated failures, and major repairs.

• Inspect, clean, repair, insulate, and balance ductwork; fabricate and install duct sections and HVAC components using approved hand tools, portable metalworking tools, and welding or joining equipment as qualified.

• Install, service, and replace compressors, condensers, evaporators, motors, valves, piping, tubing, filters, belts, fittings, controls, thermostats, switches, fuses, and related electrical components within authorized trade scope.

• Recover, charge, and handle refrigerants in compliance with EPA Section 608 requirements; test systems for pressure, vacuum, and leaks; and submit required refrigerant reports whenever refrigerant is added, recovered, or lost.

• Winterize air-handling equipment as required to prevent coil freezing and support semiannual testing of the Collective Protection System.

• Maintain Direct Digital Control (DDC), Energy Management Control System (EMCS), and Building Management System (BMS) functions, including schedules, set points, setbacks, backups, alarms, trending data, and control calibration.

• Support HVAC water-treatment and corrosion-control activities through inspections, sampling, chemical treatment, minor remediation, and monthly documentation of water analysis, chemical usage, and corrective actions.

• Use NexGen IT/TRIRIGA or the Government-designated work management system to receive and update work orders, record labor and materials, document as-found and as-left conditions, enter cause-and-remedy notes, identify deficiencies, and request follow-on corrective work.

• Maintain accurate equipment, calibration, maintenance, warranty, and condition records; assist with physical asset inventories, preventive-maintenance task lists, and lifecycle condition assessments.

• Read and work from as-built drawings, blueprints, engineering specifications, manufacturer manuals, control diagrams, shop sketches, and verbal or written work instructions.

• Follow lockout/tagout, confined-space, fall-protection, refrigerant-safety, electrical/arc-flash, personal protective equipment, hazardous-material, and other applicable OSHA, Air Force, and site safety requirements.

• Coordinate planned outages and work affecting controlled or HEMP-protected areas; do not disturb HEMP shield components, specialized points of entry, filters, seals, waveguides, or penetrations; immediately report potential damage or configuration concerns.

• Maintain clean and orderly mechanical rooms, protect Government property, restore work areas after maintenance, and provide professional customer service while coordinating with Government representatives and other contractors.

• Support 24/7 mission-essential operations, emergency response, after-hours callout, and continuity during holidays, base closures, emergencies, or Government shutdowns as directed.