New York Low Pressure Boiler COF Practice 2025 – All-in-One Guide to Exam Success!

Using a properly calibrated gauge is crucial when performing a pressure test on a hydronic system because it ensures the accuracy of the pressure readings. A calibrated gauge provides reliable measurements that are essential for determining whether the system can maintain the specified pressure without any leaks or deficiencies. Accurate pressure readings are foundational for assessing the integrity of the system and ensuring that it operates safely and efficiently.

While other aspects, such as verifying valves and maintaining ambient temperature, can be relevant to the overall performance and reliability of the system, they do not have the same direct impact on the accuracy of the pressure testing process. Similarly, timing the test duration may be important for assessing the system over time, but without an accurate gauge, the validity of the test results is compromised. Therefore, the use of a properly calibrated gauge stands out as a critical element in ensuring a successful and informative pressure test.