SENTROL Application notes - Alarms BC
SENTROL Application notes - Alarms BC
SENTROL Application notes - Alarms BC
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
.........................................................................................................................................................................<br />
Commercial <strong>Application</strong>s<br />
APPLICATION 1<br />
INSTALLATION<br />
RECOMMENDED<br />
PRODUCTS<br />
PROTECTING STEEL DOORS<br />
WITH RECESSED TOP<br />
Recess of 1/2" to 3/4"<br />
Some steel doors are recessed at the top, creating a large gap which must be<br />
overcome when using a concealed magnetic contact. This page and the next two<br />
pages give three methods for solving this problem. The different methods are for<br />
different size recesses. The first method uses a regular switch with a door recess of<br />
1/2" to 3/4" (1.27 cm to 1.9 cm).<br />
Caution: Consult factory for installations on steel doors without recessed tops.<br />
Make sure recess is 1/2" to 3/4" deep.<br />
Carefully align position for switch and magnet.<br />
Drill hole for switch in door frame — 11/16" (1.75 cm) for 1078CW,<br />
15/16" (2.38 cm) for 1078W.<br />
Drill hole for magnet in top of door 9/16" (1.43 cm) for 1078CW, 5/8" (1.59 cm) for<br />
1078W.<br />
Wire switch to loop and insert in frame.<br />
Clean top of door and mount magnet in hole. Hold in place with tape. Close door<br />
and test circuit.<br />
Use RTV or epoxy to glue magnet in place.<br />
Retest.<br />
1078W, 1078CW, RTV 1905<br />
1/2” to 3/4”<br />
Recess<br />
Switch<br />
Magnet<br />
Door Frame<br />
RTV<br />
Mounting<br />
Compound or<br />
Epoxy<br />
MAGNETIC CONTACTS<br />
Door<br />
3.61
Change language