Door Controls__(interior)(exterior) swinging door(s) shall be of rack and pinion design contained within a precision cast aluminum housing. Door closing force shall be adjustable to ensure adequate closing control. Door closing speed shall be controlled by independent hydraulic adjustment valves in the sweep and latch range of the closing cycle. Door Operator shall provide conventional door closer opening forces unless the power operator motor is activated. Door Operator shall provide conventional door closing forces at all times except in the event of power outage during powered door open cycle. Door Operator opening force and speed shall have an adjustable hydraulic backcheck valve to cushion the door speed if door is opened violently. Door Operator shall have a manual adjustment to locate both full open and full closed door positions. Maximum door open shall be adjustable and capable to a maximum 180° conditions permitting. [(Door Operator shall be AUTOMATICALLY ACTIVATED, i.e., motion sensor.)(Door Operator shall be SELECTIVELY ACTIVATED by external initiating device, i.e., wall switch, etc.)(Door Operator shall be both AUTOMATICALLY ACTIVATED and SELECTIVELY ACTIVATED.)] Door Operator shall have adjustable hold open time capability in range from 5 to 30 seconds. Door Operator shall have input line rating of 120VAC, .6A or 240VAC, .3A Units shall have relay contact for interfacing products having a contact rating of 30VDC at 1A or 125VAC at .5A Unit shall have an external On/Off Switch to defeat powered opening when desired. Unit shall be in compliance with the requirements of the American With Disabilities Act (ADA), ANSI standards A117.1 and A156.19. Unit shall meet C-UL US.