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door occupied signs
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What is a communicating frame?
Resolution:
Communicating Frames are hollow metal frame fabricated such that a door is installed in each rabbet of a double rabbeted frame (2 doors total) to facilitate dual access and control of the opening, ...:
Which closers are available with the TEL option?
Resolution:
The TEL option is only available on the 4010, 4020, and the 4110 series closers. The 4041/4040XP is not available with TEL (telephone closer). :
On which closer is the fusible link arm available?
Resolution:
The Fusible Link arm is available with the 4010, 4020 and 4110 series closers. They all use the same Fusible Link arm. The UL Listing number is for the Fusible Link arms is R1943.The 4010 Series ca...: