Chapter 5: Diagnostics, maintenance, and testing
174 P/N 3102351-EN • REV 005 • ISS 28DEC18
Preventive maintenance schedule
Refer to the NFPA 72 section on Inspection, Testing, and Maintenance, the Canadian
Electrical Code Part I, CAN/ULC-S524, or CAN/ULC-S536 for more information on required
inspection and testing methods and frequencies for fire alarm systems and devices. For
detector sensitivity and functionality testing, refer to the detector manufacturer’s installation
instructions.
Fast Ground Check
Use Fast Ground Check to quickly check the system for ground faults. During normal operation
the system checks for ground faults every thirty seconds and reports them by flashing the
Ground Fault LED. When you are troubleshooting ground faults on the system, you may not
want to wait thirty seconds for the system to perform the ground fault check. Use the Fast
Ground Check to decrease the system ground fault check time to every four seconds. The fast
ground check will be effective after a time period of thirty seconds since the initiation of the fast
ground check. This allows you to troubleshoot your ground faults much quicker and determine
if they were actually corrected.
Note: Once you solve the ground faults in the system, turn off the Fast Ground Check. The
system automatically turns off the Fast Ground Check after thirty minutes from its start.
To turn on and off Fast Ground Check:
1. Press the menu button and choose Diagnostics.
2. Enter a level two password.
3. Choose Fast Ground Check.
4. Choose Start to turn on Fast Ground Check or choose End to turn off Fast Ground Check.
Recalibrate device
The Recalibrate command resets a detector’s environmental compensation and dirtiness level.
You can use this command after cleaning to immediately see whether the device was cleaned
properly. Allowing the panel to recognize that the device has been cleaned and recalibrate it
automatically takes considerably more time. A device trouble will return, indicating that more
cleaning is required. If the device is cleaned, the corresponding device trouble will clear.
To recalibrate a device:
1. Press the menu button and choose Diagnostics.
2. Enter a level two password.
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