How to Test a GX100 Smoke Detector

The GX100 smoke detector system is a discontinued model from Gemini Manufacturing that's still in service in many locations. The GX100 master system provides the control circuitry to power up to 10 GX50 slave units. The GX100 can protect commercial buildings up to 2,000 square meters. The system works on wired electrical circuits and each unit has a sealed battery backup.

Things You'll Need

Plastic test key
Smoke alarm system box door key

Alarm panel key switch
Step ladder

Instructions

- 1
  Open the GX100 system box. Switch off the power to the box at the main circuit breaker box. The sounder should beep once every five to 10 seconds to indicate the power is off. Turn the power back on. Turn the key switch to the "Restart Alarm" position. The sounder should stop beeping and the green "Power on" LED will be illuminated.
- 2
  Insert the black plastic test key in the side of the call point panel. The sounder will sound.
- 3
  Turn the key switch to "Silence" before removing the plastic test key. Once the test key is removed, turn the key switch to the "Restart Alarm" position.
- 4
  Open each GX50 remote alarm and insert the black plastic test key in the test socket. The alarm will sound.
- 5
  Return to the GX100 control panel. Turn the key switch to "Silence." The alarm should stop. Remove the test key and close the GX50 case.
- 6
  Go back to the control panel and turn the key switch to the "Restart Alarm" position and the panel should show all alarms active. Repeat until all units have been tested.

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