What are some of the reasons that a fire system would need to be upgraded?
There can be several reasons you may be required to upgrade. The most common reason is that the system does not meet the UL-300 standard. The highlight of this standard is the move from a Dry Chemical extinguishing agent to the currently used Wet Chemical. You can tell if your system is not compliant by looking for the UL-300 listed stamp on the system components.