Head Pressure
Head Pressure is a basic but important measurement in air conditioning and refrigeration systems. It tells technicians how well the system is working by measuring the pressure in the top part of the cooling unit. Think of it like blood pressure for an AC system - when it's too high or too low, it indicates problems that need fixing. HVAC technicians regularly check and adjust head pressure to keep cooling systems running efficiently and prevent breakdowns.
Examples in Resumes
Diagnosed and corrected Head Pressure issues in commercial refrigeration units
Performed regular Head Pressure checks and adjustments on industrial AC systems
Trained junior technicians on proper Head Pressure monitoring and troubleshooting
Typical job title: "HVAC Technicians"
Also try searching for:
Where to Find HVAC Technicians
Professional Organizations
Online Communities
Job Resources
Example Interview Questions
Senior Level Questions
Q: How do you troubleshoot high head pressure issues in a commercial system?
Expected Answer: A senior technician should explain the step-by-step process of checking for common causes like dirty condensers, overcharge of refrigerant, or non-condensable gases, and describe appropriate solutions for each scenario.
Q: How would you train a junior technician about head pressure monitoring?
Expected Answer: Should demonstrate teaching ability by explaining how they would break down the concept into simple terms, emphasize safety procedures, and provide hands-on training opportunities.
Mid Level Questions
Q: What are normal head pressure readings for different types of systems?
Expected Answer: Should be able to explain typical pressure ranges for common refrigerants and different types of systems (residential vs commercial), and when readings indicate problems.
Q: How does outdoor temperature affect head pressure?
Expected Answer: Should explain the relationship between ambient temperature and head pressure in simple terms, and describe how to adjust systems accordingly.
Junior Level Questions
Q: What is head pressure and why is it important?
Expected Answer: Should be able to explain that head pressure is the pressure in the high side of the system and its importance in maintaining proper system operation.
Q: What tools do you use to measure head pressure?
Expected Answer: Should be familiar with basic tools like manifold gauges and digital measurement devices used to check head pressure.
Experience Level Indicators
Junior (0-2 years)
- Basic pressure measurements
- Reading manifold gauges
- Understanding normal pressure ranges
- Basic maintenance procedures
Mid (2-5 years)
- Troubleshooting pressure problems
- System adjustments and repairs
- Understanding different refrigerants
- Commercial system experience
Senior (5+ years)
- Complex system diagnostics
- Training and supervision
- Emergency repair management
- System design consultation
Red Flags to Watch For
- Unable to read basic pressure gauges
- No understanding of safe pressure ranges
- Lack of proper certification or licenses
- No knowledge of different refrigerant types
- Unfamiliarity with safety procedures
Related Terms
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