Self-contained control box/compressor, single door leaf Variant record generated from manufacturer nomenclature (https://www.lcnclosers.com/content/dam/allegion-us-2/web-files/lcn/information-documents/LCN_Automatic_Operators_Catalog_Section_109510.pdf); price inherited from product #1222 pending owner confirmation.
Self-contained control box/compressor, single door leaf Variant record generated from manufacturer nomenclature (https://www.lcnclosers.com/content/dam/allegion-us-2/web-files/lcn/information-documents/LCN_Automatic_Operators_Catalog_Section_109510.pdf); price inherited from product #1222 pending owner confirmation.
| Low-voltage wiring | Connection count needs review |
|---|---|
| Preparation | The surface-mounted control box needs a prepared mounting location, power and tubing run. These prerequisites apply to the 7900 Series control boxes and the 7981 specifically. The two-Tapcon mounting detail is shown on the 7901/7902 page, and the 7981 page has a similar mounting note. The catalogue's 7900 Series installation notes cover the rest. |
| Electrical | The 7981 takes a 120V AC input at 5 amp and needs an earth ground connection. It outputs 12V DC at 0.25 amp max. Its input accepts N.O. contacts from hardwired actuators or from a wireless actuator/receiver combination. Cable counts and conductor numbers are not stated. |
| Conditional connections | 120V AC mains input to the control box/compressor: cable runs quantity unspecified; conductor count unspecified; wire type not documented; size unspecified; shielding unspecified; rating unspecified; endpoints 120V AC supply to 7981 control box; when Installation configuration is Base 7981 supply connection; 5 amp input; earth ground also required.; Wireless receiver input to the control box: cable runs quantity unspecified; conductor count unspecified; wire type not documented; size unspecified; shielding unspecified; rating unspecified; endpoints wireless receiver to 7981 control box; when Installation configuration is IF a wireless actuator/receiver combination is used. The receiver is placed beside the 7981 in the wireless diagram, but the receiver-to-box link is not specified as a cable. |
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