A professional who assists refrigeration mechanic in installing, maintaining, and repairing industrial and commercial refrigerating systems. Responsibilities include:

• Transports tools, materials, components, and refuse to and from work area.
• Lifts or holds parts while refrigeration mechanic fits, aligns, and fastens them into position.
• Bolts or unbolts parts, using handtools.
• May cut and thread pipe to specified length, using pipe cutter, stock, and die.
• May insulate cabinets and systems.
• Performs other duties as described under helper master title.