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PERFECT FRY FIRE SUPPRESSION SYSTEM
PFS AUTOMATIC FIRE EXTINGUISHER
INSPECTION & MAINTENANCE (continued)
1. Where semi-annual maintenance of any wet chemical containers or PFS components reveals conditions
such as, but not limited to, corrosion or pitting in excess of manufactured limits, structural damage or fire
damage, repairs by soldering, welding, or brazing, the affected part(s) shall be replaced or hydrostatically
tested. The hydrostatic testing of wet chemical containers shall follow the applicable procedures outlined
in NFPA 17A.
2. All wet chemical systems must be tested for proper operation. A discharge of the wet chemical is normally
not part of the test. Simply remove one lead from the pressure switch to initiate appliance shut-down.
3. Where the maintenance of the PFS reveals defective parts that could cause an impairment or failure of
proper operation of the PFS, the affected parts must be replaced or repaired.
4.
The maintenance report, with recommendations if any, shall be filed with the owner or with the designated
party responsible for the PFS.
5. The PFS must have a tag or label indicating the month and year the maintenance is performed and identi-
fying the person performing the service. Only the current tag or label must remain in place.
Twelve Years
Maintenance must be done by authorized service personnel, as per NFPA 17A and include the following:
1. The wet chemical extinguishing agent must be removed and discarded.
2. The cylinder needs to be hydrostatically tested to 300 psi (21 bar).
3. If the cylinder shows no signs of rupture or distortion, recharge the PFS as directed in the recharging
instructions.
SEMI-ANNUAL INSPECTION & MAINTENANCE (I & M) LOG
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