Systems Test, Inspection and Maintenance Methods and Procedures: 1) Verify proper operation of all sprinkler control panel functions (ground fault, supervisory circuit operation, auxiliary control functions such as HVAC shutdown). Conduct same tests from any remote annunciators. 2) Inspect and clean interior of control panel and remote annunciator panels, and clean exterior of all panel cabinets. Remove dust and dirt from all circuit boards, power supplies amplifiers, chargers and relays. Visually inspect all circuit boards for signs of excessive heat buildup or fatigue. Check power supplies, amplifiers and annunciator output voltages. Adjust all voltages outputs to factory specifications. 3) Check all control panel and annunciator indicator lamps or LEDs, replace as needed. 4) On systems equipped with zone disconnect or isolating switches, verify that each switch (100%) performs its intended function and a trouble signal is received when a zone is disconnected. 5) On systems equipped with a ground detection feature, verify that ground fault indication is given whenever any installation conductor is grounded. 6) On systems equipped with a digital alarm communicator transmitter or other means of transmitting alarm and trouble signals off site, actuate appropriate initiating device or trouble circuit and verify that the appropriate signal is received off site. 7) On systems equipped with standby batteries, perform the following tasks: Disconnect A.C. power and check open circuit voltage. Measure standby current. Measure battery voltage under full load for 5 minutes with battery charger disconnected. Clean all connections. Check battery charger for proper operation. Document and inform the Agency’s representative of any battery failing tests.