Liftmaster 3900 Light-Duty Commercial Jackshaft Garage Door Opener

Liftmaster 3900  Light-Duty Commercial Jackshaft Garage Door Opener

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Item# 3900
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Liftmaster 3900 Light-Duty Commercial Jackshaft Garage Door Opener Instruction Manual
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Product Description

Protecting your property is a priority and if you’re in need of a remote-controlled commercial garage door opener, North Shore Commercial Door can help. The LiftMaster 3900 Light-Duty Commercial Jackshaft Garage Door Opener for Sectional Doors with one remote has all the features you’re looking for in a commercial garage door.

The LiftMaster 3900 features the following:

•Made for standard, vertical and high-lift sectional doors, this garage door opener is suitable for doors as high as 14 feet and as wide as 18 feet.

•It is not appropriate for an excess of 180 square feet or 650 pounds.

•It will fit garages that have an obstructed ceiling, cathedral design or limited height available.

•The motor is protected with a lifetime warranty.

•Wall mount installation attached to the door mount tension bar.

•A quiet, tough motor.

•A power cord that measures six feet.

•Numerous safety features and push button technology.

•Tension monitor to prevent the need for balancing.

As always, our staff is knowledgeable and here to answer your questions. Get your LiftMaster 3900 remote controlled garage door opener from North Shore Commercial Door today.

*Remotes are not included but this unit does have a built in receiver. You can use the liftmaster Model 371LM remote control.

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Comments / Questions

COMMENT: ease of mounting reasonable price by S J 12/17/2015
COMMENT: Price by Michael R 11/28/2015
QUESTION: Is there an accessory chain that I can attach to the opener so I can open and close the roll up door manually instead of having to lift the door itself? by damon y 11/4/2015
ANSWER: For a ROLL UP DOOR, you will need the liftmaster 3950, not the 3900. by Brian C a
ANSWER: No you have to manually open it. by Thomas M a
ANSWER: No, you have to pull the rope that come with the opener to unlock the gear and you have physically lift the door . Hope that helps. by fred P a
QUESTION: Can a start stop button be used with with this operator? by Dave W 9/30/2015
ANSWER: Yes by Steve W a
ANSWER: yes by robert t a
ANSWER: Yes it comes with one by Michael R a
ANSWER: Yes the button on the wall will start and stop the door at any location you need. You have to push it twice to stop it as the first time it just changes direction the second time stops it. by Harold J a
ANSWER: Yes, <br /><br />I have installed these in all the new homes I've built; To me they're about the best unit on the market. Remember, it's only for jackshaft location. make sure you have the proper clearances for it.<br /><br />Best regards <br /><br />Anthony by Anthony W a
ANSWER: Yes stop start button can be installed on this opener we have installed it on all of ours and it worked fine by robert w a
QUESTION: is the hole for the torsion bar a full pass though. Can I run the bar through the center ? by None N 8/6/2015
ANSWER: No, sorry. there is no hole, it's a bar that attaches to the shaft with a collar, Allen wrenches will be needed by John S a
QUESTION: I have a Haas 10' wide by 9' high insulated door. Will this unit be powerful enough? by None N 1/13/2015
ANSWER: I have a 10x10 insulated door and the 3900 opener works fine. I installed it my self but had trouble setting the limits so I hired a pro to set the limits. by Mabrey H a
ANSWER: I used this opener on a larger door than yours and it is working well...the springs that come w/ the door do the majority of the work...these are excellent openers, I will use them again by John F a
ANSWER: Yes , I have one on a 12'x14' steel door and it works fine by Gary M a
ANSWER: I have one on each of two eight by ten doors. I feel sure the 3900 will be fine for your nine by ten doors. I add that I really like my openers. by robert t a
ANSWER: yes I have a 10' by 12 ' door I have no problems by Dee s a
ANSWER: if your door weighs 650LBS or less this will work for you. The 3900 is compatible with doors up to 18 ft wide by 14 ft tall and up to 650lbs. by Emerson C a
ANSWER: I put it on a 16 by 8 insulated door and it has no problem opeNing it. by Carl D a