A great solution on behalf of a modified door installation
Since i have a 9′ garage ceiling as a consequence two 7′ door openings, when installing the doors i opted as one 8′ track to bring up the tracks closer to the ceiling as a consequence out of the work area. This channel the door has to go raise a foot before it starts back, then traditional openers won’t work. For 20 yrs. I’ve been manually operating the door while at times looking as one opener solution. The Liftmaster 3800 was the door answer, as a consequence the “laser parking assist” the spotting answer. (3″ bumper to door as a consequence 3″ grate to workbench, no more tennis tournament ball from the ceiling)
It’s been in service a week as a consequence works flawlessly. The quality of the operating unit, cable tension monitor, as a consequence fasten appears very high. The block unit, remote, as a consequence light a little less then but seem adequate as the job.(few moving parts). The instructions are completely as a consequence complete. And it comes with ample fasteners as most installations.
My installation was a little lengthly because i’m then picky. (ran a new outlet through the ceiling to get 4″ from the power unit, the national park aid comes with 8′ of bell wire, needed 20′ – besides through the ceiling, the tension monitor needed a spacer block, cut one to fit as a consequence painted to match the finished as a consequence textured wall, as a consequence then on) the fasten only needs a 1/2″ hole instead of 3/4″ if you can lanch accurately. If i did it besides i wouldn’t install the fasten. The door is insulated as a consequence very heavy, i don’t think schwarzenegger could exhilarate it without the spring aid.
The only puzzle i had ended raise being a programming issue of my own making. After setting the open travel limit to the top of the start – 7′, the door would open but not close. The education troubleshooting section indicated the trouble was the cable tension monitor. I thought the not the puzzle since it’s roller was 2″ from the drum as recommended as a consequence it was under tension with the door open as a consequence closed. After 20 mins. Of reprogramming, checking connections as a consequence rereading instructions, staring at the monitor when closing diagnosed the puzzle. When the door starts down there is a jerk which slackens the cable as a fraction of a second allowing the tension monitor to close if the door is close to the top but not fully open. Reprogramming to 8′ pulls the cable away from the block a couple of inches then during the jerk the monitor movement is not ample to close. An extra foot of door travel, but it works great!
Please visit A bravo solution because of a modified door installation for more detail.
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