Air Handler
An Air Handler is a large piece of equipment that helps control the temperature and air quality in buildings. Think of it as the heart of an air conditioning system - it's a metal box that contains a fan, heating or cooling elements, filters, and other parts that work together to move and condition air throughout a building. When HVAC technicians mention working with Air Handlers (sometimes called AHUs or Air Handling Units), they're talking about installing, maintaining, or repairing these essential systems that keep buildings comfortable. This equipment is commonly found in commercial buildings, schools, hospitals, and large residential complexes.
Examples in Resumes
Performed maintenance and repairs on Air Handler units up to 50 tons
Installed new Air Handling Unit systems in commercial buildings
Led team of technicians in AHU preventive maintenance programs
Diagnosed and resolved complex Air Handler Unit malfunctions
Typical job title: "HVAC Technicians"
Also try searching for:
Where to Find HVAC Technicians
Professional Associations
Online Communities
Job Resources
Example Interview Questions
Senior Level Questions
Q: How would you troubleshoot a large commercial air handler that's not maintaining proper temperature?
Expected Answer: A senior technician should describe a systematic approach: checking control systems, inspecting mechanical components, testing electrical systems, and verifying proper airflow. They should also mention the importance of preventive maintenance and energy efficiency.
Q: Tell me about a time you managed a complex air handler installation project.
Expected Answer: Look for answers that demonstrate project management skills, team coordination, understanding of building codes, and ability to work with other trades like electricians and plumbers.
Mid Level Questions
Q: What regular maintenance tasks do you perform on air handlers?
Expected Answer: Should discuss checking belts, cleaning coils, replacing filters, lubricating bearings, checking electrical connections, and ensuring proper drainage. Should also mention the importance of maintaining service records.
Q: How do you ensure proper air balance in an air handler system?
Expected Answer: Should explain basic air balancing procedures, use of testing equipment, and understanding of air flow principles in simple terms. Should mention the importance of occupant comfort.
Junior Level Questions
Q: What are the basic components of an air handler?
Expected Answer: Should be able to identify main parts like the blower, cooling/heating coils, filters, and dampers. Basic understanding of how these parts work together is important.
Q: What safety procedures do you follow when working on air handlers?
Expected Answer: Should mention proper lockout/tagout procedures, personal protective equipment, and basic electrical safety awareness.
Experience Level Indicators
Junior (0-2 years)
- Basic maintenance and filter changes
- Simple repairs under supervision
- Reading basic mechanical drawings
- Understanding of safety procedures
Mid (2-5 years)
- Independent troubleshooting and repair
- Preventive maintenance planning
- Basic electrical diagnostics
- Installation assistance
Senior (5+ years)
- Complex system diagnostics
- Installation project management
- Team leadership
- Energy efficiency optimization
Red Flags to Watch For
- No knowledge of basic safety procedures
- Inability to read mechanical drawings
- No experience with proper maintenance documentation
- Lack of required certifications (EPA, etc.)
- No understanding of building codes and regulations
