A method to test the smoke, heat, or carbon monoxide detection and warning functions of each alarm device of an interconnected fire alarm system from one location by a single person who is able to ascertain, at the location where the tests are undertaken and without the single person requiring to have direct physical access to the system's alarm devices, that all of the system's remaining interconnected alarm devices have activated when any one of the system's alarm devices is being tested, the system including:
- two or more compatible interconnected alarm devices with remote test switches located at a control and test panel, and with each remote test switch individually hard wired to its respective alarm device so that each interconnected alarm device can be tested remotely when its remote test switch is operated;
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- said interconnected alarm devices being individually hard wired to the control and test panel in order to receive electrical power and for common alarm communication between all of the system's alarm devices;
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- said control and test panel including a power supply to power all of the system's alarm devices and all control and test panel circuits and indicators;
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- said control and test panel also including connecting means for electrically connecting all the system's individual alarm devices interconnection hard wiring together for common alarm communication between all of the system's interconnected alarm devices so that they all activate and provide an audible fire warning if any of the interconnected alarm devices is tested or is in alarm mode;
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- said control and test panel including additional detecting and indicating means for each of the system's interconnected alarm devices for detecting and indicating when an alarm device has been activated and is providing a fire warning signal;
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- the smoke, heat, or carbon monoxide detection and warning functions of each of the system's interconnected alarm devices are tested by a single person:
- operating the remote test switch of one of the system's interconnected alarm devices at the control and test panel so that the alarm device is activated to provide an audible fire warning and operate the control and test panel additional detecting and indicating means of the interconnected alarm device being tested;
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- maintaining the said interconnected alarm device activated and in test mode to provide a signal to all the system's remaining interconnected alarm devices via the control and test panel connecting means and the interconnection hard wiring of each of the system's remaining interconnected alarm devices to cause them to activate and to each provide a fire warning signal;
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- said control and test panel additional detecting and indicating means of each of the system's remaining alarm devices operating when each of the remaining interconnected alarm devices activates and provides a fire warning;
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- terminating the testing of the said interconnected alarm device after the single person carrying out the test has confirmed that all the individual control and test panel detecting and indicating means have operated to indicate that all of the system's interconnected alarm devices have activated and are each providing an audible fire warning;
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- the single person repeating all the previously described actions and verifications for each of the system's remaining interconnected alarm devices when they are tested in turn, one at a time, to result in the detection and warning functions of all of the system's alarm devices being tested and proven.