Sample interview questions: Can you explain the process of pressure testing and leak detection in hydronic systems?
Sample answer:
Pressure Testing
- Isolate the system: Close all valves and isolate the system from any water source.
- Install a pressure gauge: Connect a pressure gauge to the highest point in the system (air vent or expansion tank).
- Pressurize the system: Slowly increase the pressure using a pump or pressurized air source.
- Maintain pressure: Hold the pressure for a specified period, typically 24-48 hours, and monitor the gauge for any pressure drop.
- Inspect for leaks: Check all fittings, joints, and components for signs of water leakage or moisture.
Leak Detection
- Visual inspection: Thoroughly examine all components and connections for visible leaks, stains, or drips.
- Electronic leak detectors: Use electronic devices that emit an audible or visual signal when they detect moisture or wa… Read full answer
Source: https://hireabo.com/job/12_0_14/Hydronic%20Technician