Arizona Plumbing Practice Exam

What should be provided for maintaining a condensate trap?

1. A drainage system

2. A water supply

3. A ventilation system

4. A pressure relief valve

The correct answer is: A water supply

For maintaining a condensate trap, providing a water supply is essential because condensate traps are specifically designed to manage the water produced as a byproduct of the condensation process in HVAC systems. The primary function of a condensate trap is to prevent backflow of gases while allowing the proper flow of condensate. This process requires a consistent water level within the trap to create a seal that keeps acidic vapors or gases from entering the living spaces. If the trap is not supplied with an adequate amount of water, it cannot effectively function as a barrier against these gases. Thus, ensuring a reliable water source helps maintain the appropriate water level within the trap, which is critical for its operation and the overall efficiency of the HVAC system.