Specifications include, but are not limited to: Inspections to Include: Inspect all components, including the fire extinguisher unit, appliance nozzles, sensor distribution assembly and shutoffs. Replace battery in the Central Processing unit control board and the "Optional Gas Sonic Shutoff ' part #306A unit annually from the date of installation. Keep the Guardian Ill System free of cooking grease andresidue. Certificates of inspection and maintenance shall be provided to the Department of Public Safety. Semiannually Maintenance and Inspection 11.3 Maintenance. 11.3.1* At least semiannually, maintenance shall be conducted in accordance with the manufacturer's listed installation and maintenance manual. 11.3.1.1 As a minimum, such maintenance shall include the following: (1) A check to see that the hazard hasnot changed (2) An examination of all detectors, expellant gas container(s), agent container(s), releasing devices, piping, hose assemblies, nozzles, signals, and all auxiliary equipment (3)* Verification that the agent distribution piping is not obstructed (4) Examination of the dry chemical (If there is evidence of caking, the dry chemical shall be discardedand the system shall be recharged in accordance with the manufacturer'sinstructions.) 11.3.1.2 Dry chemical in stored pressure systems shall not require semiannual examination but shall be examined at least every 6 years. 11.3.1.3 Where semiannual maintenance of any dry chemical containers or system components reveals conditions such as, but not limited to, corrosion or pitting in excess of the manufacturer's limits, structural damage or fire damage, or repairs by soldering, welding, or brazing, the affected part(s) shall be replaced or hydrostatically tested in accordance with the recommendations of the manufacturer or the listing agency. The hydrostatic testing of dry chemical containers shall follow the applicable procedures outlined in Section 11.5. 11.3.1.4* All dry chemical systems shall be tested, which shall include the operation of the detection system, signals, and releasing devices, including manual stations and other associated equipment.