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� <br />� <br /> ELEVATOR MACHINE ROOM AIR CONDITIONING UNIT: ACU-X <br /> UNIT START/STOP <br /> � THE EMCS SYSTEM SHALL START/STOP THE AIR CONDITIONING UNIT (ACU) ON ITS OWN "OCCUPIED/UNOCCUPIED" ' <br /> SCHEDULE. <br /> � <br /> TEMPERATURE CONTROL <br /> THE EMCS SYSTEM SHALL INDICATE THE COOLING AND HEATING SPACE TEMPERATURES TO THE ACU. THE <br /> EMCS SHALL MONITOR THE SPACE TEMPERATURE AND INITIATE AN ALARM WHEN THE SPACE TEMPERATURE <br /> EXCEEDS 90 DEG F (ADJUSTABLE). <br /> THE EMCS SHALL MONITOR THE STATUS OF ELECTRIC HEAT IN THE ACU. <br /> ECONOMIZER CONTROL <br /> WHEN THE OUTDOOR ENTHALPY CONTROLLED CALLS FOR ECONOMY COOLING, THE ACTUATOR SHALL <br /> MODULATE (OR OPEN-100%) THE DAMPER TO INTRODUCE OUTSIDE AIR INTO THE SPACE BASED ON (FACTORY <br /> PRESET 55 DEG F (ADJUSTABLE)) MIXED AIR TEMPERATURE. WHEN THE OUTSIDE AIR ENTHALPY CONDITIONS ARE <br /> NOT FAVORABLE FOR ECONOMY COOLING, THE ACTUATOR DAMPER SHALL CLOSE. THE EMCS SHALL MONITOR <br /> THAT STATUS OF OUTSIDE AIR DAMPER. <br /> AIR FILTERS <br /> THE EMCS PANEL SHALL MONITOR THE DIFFERENTIAL PRESSURE SWITCH ACROSS THE FILTER AND SHALL <br /> PROVIDE AN ALARM WHEN THE PRESSURE DROP EXCEEDS THE SETPOWT. <br /> FIRE STAT DETECTION <br /> THE FIRE STAT IN THE AIR STREAM SHALL PROVIDE A"HARD-WIRED" SHUTDOWN OF THE ENTIRE ACU AND <br /> INITIATE AN ALARM TO THE EMCS. RESTARTING THE ACU SHALL REQUIRE MANUAL RESET. <br /> r <br /> � <br /> i � � � � <br /> i <br /> � <br /> ; <br /> i • <br /> i <br /> , <br /> i <br /> i <br /> , <br /> i <br /> i <br /> i <br /> i <br /> i <br /> I <br /> � <br /> � <br /> I <br /> i � � <br /> • <br /> j <br /> � <br /> i <br /> � <br /> � 900 SW 16th Street Suite 307 FSi consulting engineers <br /> SHEET INCLUDED FOR REFERENCE ONLY ReI1tOI1� Washington 98057 Solutions & Service ' <br /> � � � � <br /> ! � � � � � DRAWN DATE SUBTITLE p/� CURRENT REVISION SYMBOL � DATE � � �' � <br /> SYM REVISION � BY APPROVED DATE SYM REVISION � BY APPROVED DATE ACCEPTABILITY NJH 08/O"II17 CONTROLS SEC�UENCE OF OPEI�/'1TION �: <br /> W• � THIS DESIGN AND/OR CHECKED W2548317 08/01/17 0 <br /> � Q�-�`'��"�i�� SPECIFICATION IS APPROVED RED 08/01117 SHEET � <br /> B O E,��� � y�! j � ENGWEER TITLc � <br /> � A P P R O V E D B Y D E P T. D A T E B S C 0 8/0 1 1 1 7 B o e i n g 7 7 7 X C W C B U I L D I N G <br /> CHECKED M 1 h 1 � <br /> N <br /> C <br /> �° 4i1°° BUILDING 40-58 ' � <br /> Po��SS�OHAI ENG\��� APPROVED JOB NO. COMP NO. � <br /> Ap rover 40-58-M1h.1 Q <br /> APPROVED DWG NQ <br /> osiav�� MECHANICAL MASTER EVERETT, WA 40-58-M1 h.1 <br />