EXXFIRE 750CNF - Page 94

version 4.7.2 – July 10th, 2022 Firmware version V2.1.7 and higher
EXXFIRE Installation and Service Manual 94
DISABLE Manual Activation Button (MAB):
1. Put the key switch in SERVICE position
2. Press the DISABLE button + UP on the UI panel
3. The DISABLED LED on the UI panel will switch ON and display dd22 on the alpha numeric
display to indicate that the system is in MAB DISABLED mode; the manual activation button
is disabled in this mode, but all other functions will work normally:
a. The smoke detection function will continue working in MAB DISABLED mode,
allowing activating the Alarm condition. The system will release gas normally
b. Activating the MAB will not trigger an alarm condition
c. The relay outputs Alarm and Fault will function normally in MAB DISABLED mode.
DISABLE smoke sensors:
4. Put the key switch in SERVICE position
5. Press the DISABLE button + DOWN on the UI panel
6. The DISABLED LED on the UI panel will switch ON and display dd33 on the alpha numeric
display to indicate that the system is in SMOKE SENSOR DISABLED mode; the smoke
sensors are disabled in this mode, but all other functions will work normally:
d. The smoke detection will be disabled in SMOKE DISABLED modeand will not trigger
an alarm condition.
e. Activating the MAB will activate the Alarm condition; the system will release the gas
normally.
f. The relay outputs Alarm and Fault will function normally in TRIGGER DISABLED
mode.
The system can be put back in normal mode (ENABLED) by performing the following operation:
ENABLE operation (all disablement codes):
1. Put the key switch in SERVICE position
2. In case TRIGGER is disabled: Pressing the DISABLE button again will reset the Trigger
DISABLED mode and code dd11 will disappear
3. In case the Manual Activation Button is disabled: Pressing the DISABLE button + UP button
again will reset the MAB DISABLED mode and code dd22 will disappear
4. In case the Smoke sensors are disabled: Pressing the DISABLE button + DOWN button
again will reset the SMOKE SENSOR DISABLED mode and code dd33 will disappear
5. The DISABLED LED on the UI panel will switch OFF in case all three disable modes are
switched off
Notes:
1. The DISABLE button is disabled when the key switch is in Normal operation position
2. When the system is switched from TRIGGER DISABLED mode back to ENABLED mode while
the Alarm condition is still active and the system has not released its gas yet, the system
will start a fire extinguishing sequence and release its gas (unless the DSW indicates an
open door)!