The movable damper installed in the machine room in cold areas shall allow the recirculation of air flow in the machine room to heat the machine room when the machine is cold, so as to improve the efficiency of diesel generators. . Ventilation is typically done through the use of an air inlet, air outlet/exhaust fan, and/or other ventilation openings. The air inlet must be capable. . A little background: We have a generator room that is using unconditioned outside air for cooling and combustion air, powered in using fans. There are three (3) generators in the room. The cooling system requires airflow supplied by a fan, which is. . TEMPERATURE SENSOR FAILS, THE OTHER SENSOR WILL ASSD UME CONTROL AND AN ALARM WILL BE GENERATED BY THE BUILDING AUTOMATION SYSTEM (BAS). OTHERWISE, THE AVERAGE OF THE TWO SENSORS WILL BE USED FOR CONTROL PURPOSES. UNDER NORMAL CONDITIONS THE VFD HAND-OFF-AUTO (HOA) SWITCH IS IN THE 'AUTO' POSITION. .
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