Refrigeration Mechanic

DEPT OF EMERGENCY AND MILITARY AFFAIRS

The Department of Emergency & Military Affairs (DEMA), led by The Adjutant General, provides emergency management and military capabilities to the citizens of Arizona and the nation. The Emergency Management Division consists of three sections—operations, preparedness, and financial administration. Each section works collaboratively across the agency and with external partners to manage emergency responses and reduce the impacts of disasters. Additionally, DEMA is the headquarters for the Arizona National Guard, the primary combat reserve of the United States military.

The Arizona Army and Air National Guard provide military forces and equipment to accomplish community, state, and federal missions.

Silverbell Army Heliport, Marana, AZ

Up to $21.5021 per hour (DOE)

17

October 3, 2026

The purpose of this position is to install and maintain heating, air-conditioning, and ventilation equipment for logistics funded Arizona Army National Guard Facilities under supervision of a Physical Plant Supervisor. This will include a wide variety of HVAC, Chillers, Boilers, Air handlers, ventilation systems, heat pumps, and heaters. Must be able to diagnose issues with freon and natural gases, electrical issues from switches to motors.

Actively participates in promoting a continuous improvement workplace culture, through the use of teamwork, root cause problem solving, standard operating procedures, and review of performance metrics.

• Diagnose and repair malfunctions in heating and cooling equipment and controls.
• Perform preventive maintenance and repair of electrical and mechanical heating and cooling components, electronic environmental controls, and monitoring systems. As well as Generators, cooling tower systems with refrigeration compressors and condenser package heat pump units, exhaust fans, window air-conditioning units, split HVAC systems chillers, boilers (Naturals Gas, Propane, Fuel oil), Evaporative Coolers, Thermostatic controls, space, and radiant heaters.
• Install various HVAC Equipment and controls.
• Service HVAC controls and equipment, modify schematics and install special electronic/electrical wiring projects, control units on new and existing equipment to meet the needs of the agency’s statewide energy programs. Specialized electrical/electronic systems include but are not limited to fuel cells, photo-voltaic arrays.
• Install miscellaneous heating and cooling equipment.
• Procure and stock heating and cooling equipment parts and supplies.
• Keep accurate records of work performed, fill out time sheets, expense vouchers, travel claims, vehicle reports, or other routine agency reports. Confer with superiors, present and resolve difficult problems and discuss plans and actions.

• Know how to troubleshoot different types of HVAC equipment and components that support them, electrically, relays, circuitry and the controls which activate refrigeration units.
• Must be able to read and understand blueprints and schematics of electrical circuits to analyze refrigeration malfunctions using performance and test equipment.
• Must have extensive knowledge of safety procedures in working with or near potentially dangerous high voltage services.
• Knowledge of codes, standards and regulations pertaining to the repair, modification and replacement of HVAC services, fixtures, and apparatus.
• Knowledge of the operation of specialized building automation, HVAC controls, and their respective systems.
• A basic knowledge of how air flow is supposed to work in a building or specified area.

• Must be skilled in refrigeration mechanics and be able to utilize electrical and HVAC diagnostic equipment.
• Must have skills in electrical mechanics and use of electrical diagnostic equipment.
• The use of various HVAC manual tools, including but not limited to drills, grinders, sanders, sheet metal shears, saws, and welding torches.
• Maintaining and repairing various types of building automation and energy controls.
• Diagnosing and troubleshooting repairs of various electronic controls and systems.

• Build, from components, electrical service entrance sections from 50 to 1500 amps.
• Make mechanical estimates from blueprints and specifications.
• Troubleshoot mechanical components, including HVAC equipment.
• Analyze electrical/mechanical malfunctions using performance and test equipment.
• Diagnose defective printed…