SECTION 5 – FINAL SYSTEM CHECKOUT
UL / ULC Ex4623 Fike Clean Agent System w/ FM-200™ Page 1 of 2
FM 3010715 Manual P/N: 06-215 (Rev G) Revision Date: January, 2010
The checkout procedures outlined in this section are intended to represent the minimum requirement for the
extinguishing portion of the system. Additional procedures may be required by the authority having jurisdiction
(AHJ).
The control portion of the system should be thoroughly checked out according to the manufacturer's
recommendations and the requirements of the authority having jurisdiction (AHJ).
5.1 HAZARD AREA CHECK
A good review of the hazard area is just as important as the proper operation of system components. Certain
aspects about the hazard may have changed, or been overlooked, which could affect overall system
performance. The following points should be thoroughly checked.
5.1.1 AREA CONFIGURATION
The area dimensions should be checked against those shown on the system plan(s). If the area volume has
changed, the agent weight should be recalculated and compared with the agent weight supplied.
The area should also be checked for walls or movable partitions which have been added or changed. If walls or
partitions have been added, check to see that all areas within the hazard still receive adequate nozzle coverage
and agent distribution.
5.1.2 AREA LEAKAGE
The hazard area should be checked for openings which could allow agent leakage after system discharge.
Openings, such as cable and duct penetrations into the area, should be permanently sealed.
Other sources of leakage should be checked for and sealed, especially in subfloor areas, where potential leak
points are easily overlooked. Door(s) entering the hazard area(s) should be checked for tightness. Door seals
and door sweeps should be installed to minimize leakage. Joints where walls contact floors, or other walls,
should be sealed as these are potential leak points most often overlooked. Wall switch and receptacle boxes
should be sealed. Sub-floor drains must have “P”- traps and be sealed with a non-evaporating liquid, such as
anti-freeze or mineral oil. All penetrations between floors must be sealed.
5.1.3 ENCLOSURE INTEGRITY - DOOR FAN TESTING
Door fan testing provides a method to estimate worst-case room leakage. The door fan calculation method
makes it possible to predict the timeline for a decending interface to fall to a given height and estimate how long
an extinguishing concentration will be maintained within the protected space. This procedure is limited to door fan
technology. This is not intended to preclude alternative technology such as acoustic sensors.
Enclosure integrity testing is not intended to verify other aspects of Clean Agent system reliability; i.e., hardware
operability, agent mixing, hydraulic calculations, and piping integrity. Refer to NFPA Standard 2001, Section 4 for
additional test requirements.
The door fan testing procedure should not be considered to be an exact model of a discharge test. The
complexity of this procedure should not obscure the fact that most failures to hold concentration are due to the
leaks in the lower surfaces of the enclosure, but the door fan does not differentitate between upper and lower
leaks. The door fan provides a worst-case leakage estimate that is very useful for enclosures with complex
hidden leaks, but will generally require more sealing than is necessary to pass a discharge test.
Refer to NFPA Standard 2001, Section 4 and Appendix “C” for additional information and door fan test
precedures.
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