Air Force AFSC · Engineering
3E1X1 Heating, Ventilation, Air Conditioning and Refrigeration
Overview
Heating, Ventilation, Air Conditioning and Refrigeration specialists maintain the mechanical systems that control temperatures in spaces across their bases. They install, maintain, and repair HVAC and refrigeration systems used in different climates around the world.
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Skill levels: 3E111 helper · 3E131 apprentice · 3E151 journeyman · 3E171 craftsman
Core Skills
- HVAC/R system installation and maintenance
- controls and automation troubleshooting
- electrical and mechanical diagnostics
- environmental monitoring and optimization
- preventive and predictive maintenance
- reading blueprints and schematics
- refrigerant handling and safety
- critical facility support
- work order and asset management
- technical documentation
Civilian Career Paths
- Mechanical Engineering
- Facilities Management
- Civil Engineering
- Construction Management
Training & Development
Getting Started
- Air Conditioning Installation
- Air Conditioning Service
- Air Distribution Specialty (Installation)
- Air to Air Heat Pump Installation
- Building Energy Assessment Professional (BEAP)
Career Growth
- Building Energy Modeling Professional (BEMP)
- Certified Assistant Refrigeration Operator (CARO)
- Certified Associate in Project Management (CAPM)
- Certified Calibration Technician (CCT)
- Certified Control Systems Technician - Level I (CCST-I)
Formerly Known As (Legacy)
Retired codes that converted into 3E1X1. Each legacy page documents the cited history.
54510Heating, Ventilation, Air Conditioning, and Refrigeration Helper54530Apprentice Heating, Ventilation, Air Conditioning, and Refrigeration Specialist54570Heating, Ventilation, Air Conditioning, and Refrigeration Technician54590Heating, Ventilation, Air Conditioning, and Refrigeration Superintendent
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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