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L' <br />r <br />PART 1 GENERAL <br />SECTION6I 1 <br />1 A. For normal operation, the flare is activated by pulling the "EMERGENCY <br />STOP" buttons out, resetting any alarms by pressing the reset button, placing <br />the "AUTO SHUTOFF VALVE" switch in the "AUTO" position, placing <br />one of the two "BLOWER" switches in the "AUTO" position, placing the <br />"PILOT" in the "AUTO" position "AUTO"; and placing the "FLARE" <br />switch in the "ON" position (usually in that order). When this is done, the <br />following sequence of events occurs: <br />1. The following indicator lights on the MMI illuminates: <br />POWER ON <br />PURGE <br />AUTO SHUTOFF VALVE CLOSED <br />2. After the purge cycle, the pilot propane solenoid valve (SOV 402) <br />opens, the propane spark igniter is energized and the "PILOT <br />IGNITION" indicator light illuminates. <br />3. If the flare safeguard system (UV 401) does not prove a pilot flame, <br />SOV 402 and the pilot spark are de -activated, the "PILOT FAIL" <br />indicator light illuminates, and the "PILOT IGNITION" light turns off. <br />Pushing the "reset" button on the front panel turns off the indicator <br />light and resets the control logic and the flame safeguard. <br />4. If the flame safeguard system detects a pilot flame, SOV 401 is <br />energized opening SDV 401, and the blower is turned on. The spark <br />igniter turns off and the following lamp indications are shown: <br />North County LFG Collection System 1 FLARE STATION PLC CONTROL <br />San Joaquin County Public Works Section 16020 <br />1.01 SUMMARY <br />A. The Contractor shall provide all labor and software to program the PLC to <br />control the system in accordance with this section. <br />B. The logic shall be PLC based. <br />C. With the exception of the emergency stop palm button, flare controls and <br />switches may be programmed into an MMI display. <br />1.02 START UP <br />1 A. For normal operation, the flare is activated by pulling the "EMERGENCY <br />STOP" buttons out, resetting any alarms by pressing the reset button, placing <br />the "AUTO SHUTOFF VALVE" switch in the "AUTO" position, placing <br />one of the two "BLOWER" switches in the "AUTO" position, placing the <br />"PILOT" in the "AUTO" position "AUTO"; and placing the "FLARE" <br />switch in the "ON" position (usually in that order). When this is done, the <br />following sequence of events occurs: <br />1. The following indicator lights on the MMI illuminates: <br />POWER ON <br />PURGE <br />AUTO SHUTOFF VALVE CLOSED <br />2. After the purge cycle, the pilot propane solenoid valve (SOV 402) <br />opens, the propane spark igniter is energized and the "PILOT <br />IGNITION" indicator light illuminates. <br />3. If the flare safeguard system (UV 401) does not prove a pilot flame, <br />SOV 402 and the pilot spark are de -activated, the "PILOT FAIL" <br />indicator light illuminates, and the "PILOT IGNITION" light turns off. <br />Pushing the "reset" button on the front panel turns off the indicator <br />light and resets the control logic and the flame safeguard. <br />4. If the flame safeguard system detects a pilot flame, SOV 401 is <br />energized opening SDV 401, and the blower is turned on. The spark <br />igniter turns off and the following lamp indications are shown: <br />North County LFG Collection System 1 FLARE STATION PLC CONTROL <br />San Joaquin County Public Works Section 16020 <br />