At what pressure must the high side of an ammonia system be tested?

The high side of an ammonia system must be tested at 250 psi to ensure the integrity and safety of the system under pressure. This testing pressure is essential during the installation and maintenance phases of the system. Testing at this prescribed pressure helps to identify potential leaks and ensures that all joints, valves, and fittings are secure and functioning properly. Maintaining this standard pressure is critical for safety, as ammonia is a hazardous material, and any leaks can pose serious health and environmental risks.

Compliance with this testing pressure is often regulated by industry standards and safety codes, which emphasize the importance of rigorous testing procedures to ensure system reliability and prevent accidents. Other pressures listed may not align with these standards, making 250 psi the appropriate and established level for conducting high side tests in ammonia systems.