LCN 7900 Series Self Contained...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3,683.16
LCN 7900 Series Self Contained Control Box/Compressor for Single Door Applications

LCN 7900 Series Self Contained Control Box/Compressor for Single Door Applications

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Model: 7981

In Stock (leaves warehouse same day if ordered before 3pm ET)

$3,683.16
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LCN 7900 Series Self Contained Control Box/Compressor for Single Door Applications

7900 Series Control Boxes

Heavy duty, surface mounted control box contains one or two electrically controlled pneumatic circuits.

Air filtration, pneumatic regulation, and system timing is performed by the control box. 7980 series control boxes also contain a built-in air pump to power the system. 

Why Choose LCN Quality?

LCN pneumatic control systems deliver professional-grade reliability with integrated compressor technology and 12VDC operation for demanding commercial applications. The self-contained design with included 3960 Compressor Assembly ensures consistent pneumatic power delivery for reliable two-door control operations. Engineered for demanding commercial applications where dependable performance is essential.

Product Documentation & Resources

Product Specs

Subcategory:
Closer Parts and Accessories
Series:
7900 Series
Product Group:
Electronic Access Controls
Product Subgroup:
Parts and Accessories
Product Type:
Safety Packages
Commercial/Residential:
Commercial
Electronic:
Yes
ADA Compliant:
Yes
Parts and Accessories Type:
Installation Accessories
Product Attribute:
Parts and Accessories
Product Category:
Electronic Access Controls
Department:
Door Hardware

LCN 7981 – Frequently Asked Questions

1) What does the LCN 7981 control box actually do in a pneumatic door operator system?
The 7981 is a heavy duty, surface mounted control box that houses the electrically controlled pneumatic circuit for a door operator. Air filtration, pneumatic regulation, and system timing all happen inside the box. The 7980 series boxes, which the 7981 belongs to, also carry a built-in air pump, so the box supplies the air itself rather than relying on a separate remote compressor. It is the brain and the air source of the system in one surface mounted enclosure.
2) Is the LCN 7981 control box for one door or two?
Single door. The 7981 is the self contained control box and compressor configured for single door applications, so if you are running two leaves off one box you want the two door version of the 7900 series control box instead, not this one. Ordering the single door box for a pair leaves you a circuit short.
3) Do I need a separate air compressor with the LCN 7981?
No separate compressor to buy. The 7981 is self contained, and the 7980 series boxes include a built-in air pump to power the system. That is the whole point of the self contained designation: air filtration, regulation, and timing plus the pump all live in the one surface mounted box.
4) Is the LCN 7981 a replacement part or a complete door operator?
It is a component, not the operator. The 7981 is the control box and compressor that powers and times a pneumatic door operator; the operator itself, the arm, and the actuators are separate. Buyers replacing a failed control box on an existing 7900 series pneumatic system order this; buyers outfitting a bare opening need the operator as well.
5) Can the LCN 7981 be used on an ADA accessible entrance?
Yes, the 7981 control box is ADA compliant, which matters when the pneumatic operator it drives is serving an accessible entrance in a facility that has to meet accessibility requirements. It is a commercial rated component, not a residential one.
6) Where does the LCN 7981 control box get mounted?
It surface mounts, so it does not need a pocket in the frame or a concealed cavity. Plan on wall or header surface space near the opening, with the air line run from the box to the operator. For an installer that means the box is serviceable without opening up finished construction, which is the usual reason a facility keeps pneumatic operators on the maintenance schedule rather than replacing them.
7) Is the LCN 7981 an electrical component that needs to be wired in?
Yes. The circuits in the 7981 are electrically controlled, and the box is an electronic component, so it needs power and control wiring run to it in addition to the pneumatic tubing out to the operator. Budget both a wiring path and an air line path when you lay out the opening.
8) Can I get the LCN 7981 install template and wiring details before I quote the job?
Yes. LCN publishes an installation instructions and templates index covering its closers and automatic operators, plus the automatic operator catalog section with the system level detail, and both are available with the 7981. Pull those before you commit to a mounting location so the box, the air line, and the power run are laid out once.
How fast can I get the LCN 7981 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the LCN 7981 come with a warranty?
Absolutely. The LCN 7981 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the LCN 7981?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the LCN 7981 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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