What is the proper method to functionally test non-restorable heat detectors?

The proper method to functionally test non-restorable heat detectors is to follow the manufacturer's published instructions. Each manufacturer may have specific guidelines and requirements for testing their detectors to ensure proper functioning and compliance with safety standards. These instructions typically detail the appropriate tools, methods, and safety precautions necessary to effectively conduct the test without damaging the detector or compromising its operational integrity.

Using a multimeter, for example, may not provide the necessary information about the performance of a non-restorable heat detector, as these devices rely on the heat they detect rather than an electrical output that a multimeter would measure. Similarly, replacing the detector would not serve as a functional test; it would simply mean the old detector is removed and a new one placed, without assessing the performance of the old unit. Disabling the system is also not a means of functionality testing but rather a method to prevent operation during maintenance. Thus, following the manufacturer's guidelines ensures that the tests comply with safety protocols and effectively evaluate the detector's condition.