Performs skilled journey-level work in the installation, maintenance, and repair of refrigeration, air-conditioning, and chilled water equipment, systems, and controls.

Installs, maintains, and repairs refrigerating equipment used in refrigerating plants and air conditioning, ventilation, and water cooling systems;

Overhauls electrical circuits, temperature and pressure controls, and other equipment, using wrenches, testers, and soldering and welding equipment;

Tests coils, valves, and connections to ascertain that system is leak proof and properly adjusted; recharges unit with proper refrigerant when necessary;

Estimates and orders materials and supplies needed to maintain equipment in good working condition;

Supervises and instructs helpers, patients or inmates;

Install, operate, maintain, and repair all types of refrigeration systems, including air-conditioning, chilled water systems, and refrigeration units.

Diagnose, inspect, trouble shoot, and overhaul electrical control circuits, temperature and pressure controls, and all related refrigeration components using manuals, blueprints, and equipment knowledge;

Test coils, valves, and connections to determine that systems are leak proof and properly adjusted;

Operate and maintain cooling towers, including water treatment systems;

Recharge units with proper refrigerant when necessary, and maintain and repair compressor units and departmental research refrigeration equipment;

Test, make measurements, and adjust all types of heating, ventilation, air-conditioning, and refrigeration systems for most efficient performance;

May lead or instruct helpers as required;

May perform work in other trades;

Perform related duties as required.

Knowledge of: standard practices, methods, materials, tools, and equipment used in refrigeration work; principles of operation of refrigeration systems; occupational hazards and safety practices of refrigeration trade.

Ability to: diagnose troubles and make necessary adjustments or repairs; estimate time and materials; use hand and power tools; weld and solder.

There may be instances where individual positions must have additional licenses or certification. It is the employer’s responsibility to ensure the appropriate licenses/certifications are obtained for each position.

Persons legally authorized to work in the U.S. under federal law, including Deferred Action for Childhood Arrivals recipients, are eligible for employment unless prohibited by other state or federal law.

Journeyman standing as a Refrigeration Mechanic as attested by:

a.         Completion of recognized apprenticeship.

                                                                            OR

b.         Full journeyman status in Plumbers and Pipefitters' Union.

                                                                            OR

c.         Five years of experience in State service as full‑time helper to a journeyman Refrigeration Mechanic.

Vocational training may be substituted for work experience on a year-for-year basis. 

Possession of a valid motor vehicle operator's license may be required.

New class, consolidates 5440 Refrigeration Mechanic, 72240 Refrigerator Mechanic; adopted
May 10, 2007, effective July 1, 2007

Revised Legal Requirements; effective June 6, 2024, due to adopted legislative action.