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Liftmaster Garage Door Opener
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Medium-Duty Hoist Operator Model MH is a Medium-Duty Logic hoist operator. It features an adjustable friction clutch a standard solenoid brake a high-starting torque motor a compact design and an emergency chain hoist with an electric interlock. MEDIUM-DUTY LOGIC TECHNOLOGY Added Value UL325-2010 compliant Medium-Duty Logic programmable integrated circuit board Built-in 3-channel 315MHz radio receiver accepts up to 20 Chamberlain Security or unlimited DIP switch remotes. 3-button remotes can be programmed for OPEN/CLOSE/STOP operation Programmable C2 or B2 wiring options (B2 requires CPS-U CPS-UN4 or CPS-EI) Integrated Timer-to-Close (TTC) allows programming from 5 to 60 seconds in 5-second increments. Allows for timed automatic door closure after the door reaches the full open position (Requires monitored safety devices with CPS-U CPS-UN4 or CPS-EI) Integrated 90-second maximum run timer UL325-2010 Monitored Entrapment Capability Monitored protection against transient over voltage conditions 3-button control station included STANDARD FEATURES Motor: Powerful 1/2 HP, 115V single phase motor with instant reverse and internal automatic reset thermal overload. Removable without affecting limit switch settings. Operator/Motor Control: Solid-state Medium-Duty circuit board. Control Circuit: 24V NEC Class 2. Emergency Manual Operation: Model MH provides easy emergency manual operation using a floor level disconnect and an electrically interlocked chain hoist mechanism. Brake: Heavy-duty solenoid actuated brake standard. CONTROL ACCESSORIES Primary Monitored Entrapment Protection: The presence of primary entrapment protection is required for all modes and features beyond basic constant-pressure-to-close performance. Primary entrapment protection devices are monitored continuously to insure safe operation of the door and limit door operator functionality should an obstruction be detected or in the event of device failure.

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Chicago Garage Door Company

Garage Door Mart is a trusted BBB certified garage door company serving the Naperville, Aurora, Plainfield and all Chicago-land garage door needs for over 10 years. Our customers value our quality services and have submitted numerous feedback comments over the years that we proudly present on our site. Click to read testimonials and what our customers are saying about us.
"Door Mart came really fast just to lift the door up so that I could drive my husband to the airport so he wouldn't miss his flight. Ash came back later the same afternoon and he only charged us for one service." read more testimonials.
Contact us today to have your free estimate our sales representative will help you to find out the style you're looking for and to be installed by one of our certified technicians professionally.