2.14.2 Fire extinguisher system Test Mode
Switch the control unit to OFF mode on the control box ②, press the button ③ or pull the marshal switch ④,
the LED ⑩ will turn ON, thus indicating that the system is connected correctly.
The LED on the extinguisher control box verifies the functionality of the system and turns on ONLY when the
extinguisher bottle is connected to the system. If the LED does not turn on after having connected the system,
check the connections and/or try replacing the battery.
2.14.3 Fire extinguisher maintenance
Before connecting the control unit to the bottle, use a multimeter to check on connector ⑨ that:
• If control unit lever switch is in OFF position, when either the activation button ③ or the marshal switch
④ is activated, the potential difference between the ends of the wires is about 7 - 8V
• If control unit lever switch is in ON position, when either the activation button③ or the marshall switch
④ is activated, the potential difference between the ends of the wires is about 9V. When neither of the
buttons are activated the potential difference between the ends of the wires is 0V.
(PLEASE NOTE: after pushing either of the activation buttons, potential built up in the system needs to be
discharged before it gets back to zero. This can easily be achieved by touching the connectors).
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