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Navy NEC · Engineering

797B Navy Afloat Maintenance Training Strategy (NAMTS) Submarine Auxiliaryman Refrigeration Repair Technician

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

A Navy Enlisted Classification: a skill designation sailors hold in addition to their rating.

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Overview

A NAMTS submarine auxiliaryman refrigeration repair technician inspects, troubleshoots, repairs, maintains, and tests submarine compressors, heat exchangers, and refrigeration systems. The technician recharges systems, aligns equipment shafts, and applies operational and intermediate-level repair procedures, maintenance standards, quality assurance specifications, and proper industrial machinery practices.

Core Skills

  • Submarine compressor and heat exchanger repair
  • Refrigeration system testing and recharging
  • Mechanical equipment shaft alignment
  • Repair standards and quality assurance

Civilian Career Paths

Career associations are editorial assessments of the cited evidence, not an official crosswalk unless the evidence explicitly says so. O*NET supplies civilian occupation information, not proof of a military match. Related experience does not confer civilian qualifications. Tasks and tools below describe civilian work, not military training.

Heating, Air Conditioning, and Refrigeration Mechanics and Installers

Inspecting, troubleshooting, repairing, testing, and recharging submarine refrigeration systems transfers directly to civilian refrigeration service.

How to prepare: Ask an HVAC employer or apprenticeship program to assess your maintenance records, existing EPA certification, and available military-credit routes before selecting gap training. Civilian entry typically involves a postsecondary nondegree award and lengthy on-the-job training, although routes with less formal education and apprenticeships also exist.

What the civilian work involves
  • Study blueprints, design specifications, or manufacturers' recommendations to ascertain the configuration of heating or cooling equipment components and to ensure the proper installation of components.
  • Discuss heating or cooling system malfunctions with users to isolate problems or to verify that repairs corrected malfunctions.
  • Connect heating or air conditioning equipment to fuel, water, or refrigerant source to form complete circuit.

Industrial Machinery Mechanics

Compressor repair, equipment testing, shaft alignment, and maintenance to quality assurance standards transfer to industrial machinery repair.

How to prepare: Build a maintenance portfolio documenting compressor troubleshooting, shaft alignment, and post-repair testing, then use it to identify equipment-specific gaps with prospective industrial maintenance employers.

What the civilian work involves
  • Repair or maintain the operating condition of industrial production or processing machinery or equipment.
  • Disassemble machinery or equipment to remove parts and make repairs.
  • Reassemble equipment after completion of inspections, testing, or repairs.

Notes & Sources

  • Covered civilian refrigerant work requires EPA Section 608 certification for the equipment type. Existing Universal certification covers all equipment types and does not expire; apprentices are exempt only under close and continual supervision by a certified technician.
  • HVAC technician licensing may be required by the state or locality and is separate from EPA certification; employers and manufacturers may impose additional qualifications.
Evidence for this guidance (5 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC 797B

    [1] NEC entry "797B - Navy Afloat Maintenance Training Strategy (NAMTS) Submarine Auxiliaryman Refrigeration Repair Technician"; cached text line 19507; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Submarine compressor and heat exchanger repair, Refrigeration system testing and recharging, Mechanical equipment shaft alignment, Repair standards and quality assurance, Heating, Air Conditioning, and Refrigeration Mechanics and Installers (O*NET 49-9021.00), Industrial Machinery Mechanics (O*NET 49-9041.00)

  2. O*NET: Heating, Air Conditioning, and Refrigeration Mechanics and Installers

    [2] O*NET 30.3 occupational data

    Supports: Heating, Air Conditioning, and Refrigeration Mechanics and Installers (O*NET 49-9021.00)

  3. US EPA: Section 608 Technician Certification Requirements

    [3] Requirements and Types of Certifications; updated July 15, 2026

    Supports: Heating, Air Conditioning, and Refrigeration Mechanics and Installers (O*NET 49-9021.00)

  4. Bureau of Labor Statistics: Heating, Air Conditioning, and Refrigeration Mechanics and Installers

    [4] How to Become; Education and Training; Licenses, Certifications, and Registrations; updated August 27, 2026

    Supports: Heating, Air Conditioning, and Refrigeration Mechanics and Installers (O*NET 49-9021.00)

  5. O*NET: Industrial Machinery Mechanics

    [5] O*NET 30.3 occupational data

    Supports: Industrial Machinery Mechanics (O*NET 49-9041.00)

Defense contractor jobs for 797B

Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.

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