PROVIDE A COMPLETE AND READY GAS DETECTION AND ALARM SYSTEM BY ARMSTRONG OR EQUAL. PROVIDE ALL FIELD WIRING IN CONDUIT AND THE FOLLOWING COMPONENTS AND SEQUENCE OF OPERATION. PROVIDE INTERLOCKS, FIRE ALARM WORK, FIELD WIRING, DEVICES AND CONTROLLERS AS REQUIRED. SUBMIT SHOP DRAWINGS OF DESIGN FOR REVIEW BY EOR. 1. ARMSTRONG AMC-1AD1 SINGLE ZONE MICOR CONTROLLER BASED GAS MONITORING PANEL WITH VISIBLE AND AUDIBLE ALARMS. 2. ARMSTRONG 1222 COMBINATION CO/NO2: DETECTABLE GAS(ES) CO & NO2. RANGE O-100 PPM CO / 0-3 PPM NO2. SENSOR WARRANTY: CO -3 YEARS, 1 YEAR NO2. TRIP POINTS: 25/100 PPM CO, 1/3 PPM NO2. SEQUENCE OF OPERATION: A. SYSTEM SHALL MONITIOR HAZARDOUS GAS LEVELS IN THEIR RESEPECTIVE ZONES 24/7/365. B. UPON DETECTION OF CO/NOX LEVELS EXCEEDING PROGRAMMED LIMITS, THE SYSTEM SHALL FIRST INITIATE A WARNING FOR LOW LEVEL AND AN ALARM FOR HIGH LEVEL. C. THE SYSTEM SHALL BE INTERLOCKED WITH EF-1. UPON ALARM CONDITION DURING UNOCCUPIED HOURS, THE GAS DETECTION SYSTEM SHALL TURN ON EF-1 TO MAXIMUM AND PURGE THE SPACE. THE PURGE SEQUENCE SHALL LAST A MINIMUM OF 15 MINUTES & UNTIL THE ALARM CONDITION IS CORRECTED. D. UPON DETECTION AND INDICATION OF A FIRE BY THE FIRE ALARM SYSTEM, THE CONROLLER SHALL BE INTERLOCKED & REVERT TO A NORMAL OPERATION POSTION.
