edwards signaling articles

Protecting Overhead or Curtain Doors

Edwards Signaling 9/28/2018
Protecting Overhead or Curtain Doors

APPLICATION 1

Switch Mounted on Channel

The 2515A is equipped with the unique Maxi-Gap feature that allows a vertical gap distance of 6" and an overall side-to-side gap of 6". Use for installing security switch on channel of overhead doors that do not line up properly, sag, or that are loose and move with wind or vibration.

INSTALLATION

Mount the contact and magnet so both labels read in the same direction. The contact and magnet must be positioned and mounted so that the mounting holes are parallel to one another.

To ensure maximum operating gap or Maxi-Gap distance, the magnet should not be mounted more than 3" away from the contact.

If the magnet is mounted 1" away from the contact and is offset by 1" either in front or in back of the contact the unit will maintain a vertical gap distance of 6".

If the Interlogix magnet is mounted 2" from the contact and is offset by 1" either in front or in back of the contact the unit will maintain a vertical gap distance of 4".

RECOMMENDED PRODUCT

Switch, Magnet, & Bracket included - 2515A

Protecting Overhead or Curtain Doors

APPLICATION 2

Switch Mounted on Channel or Door Lip

Installing security switch on channel or door lip, depending on door construction.

INSTALLATION

Close door. Tape magnet in place with masking tape. Position magnet in recessed portion of slat as close to edge of door as possible. Mount with red end as shown.

Roll up door, making sure magnet clears and does not interfere with operation of door. Close door.

Attach magnet to door with screws.

Attach wires to switch terminals. Attach switch to outside of long portion of bracket. Label must be right side up and facing away from door when bracket is mounted on channel.

Attach bracket to channel with self-tapping screws.

Important: Position bracket so that corner of door lip clears as door is opened and closed.

Test proper operation of switch by closing and opening door.

Dress wire leads with wire clamps and hook into alarm loop. Retest for operation and clearance.

RECOMMENDED PRODUCTS

Switch - 1042TW; Magnet - 1923; Bracket - 1920-2; Clamps - 1931

Protecting Overhead or Curtain Doors

APPLICATION 3

Switch Mounted on Channel of Curtain Style Overhead Doors

Installing security switch on channel of door, with the magnet mounted horizontally in the door slats.

INSTALLATION

Close the door. Adjust the interlocking bracket into the appropriate slot in the switch housing to fit the specific curtain door channel. Place the unit on the channel making sure the outer lip of the switch housing is positioned so it overlaps the edge of the channel.

Move the switch and bracket assembly so that it is no more than 36-48" from the surface of the floor. This will allow the magnet to roll up with the door without interference.

Tighten down the mounting bolt enough to hold the unit in place.

Position the magnet so that the word TOP is reading in the same direction as the Sentrol label on the switch housing, and that the center line of the magnet is aligned with the Sentrol label on the switch housing. The magnet end should be within .25" to .50" from the edge of the switch housing for reliable actuation on heavy steel surfaces.

Connect switch to multimeter to verify functioning. Push firmly on door so that the area the magnet occupies is moved to its farthest position away from the switch in all directions. If the circuit is interrupted slide the magnet closer to the switch assembly. Repeat the above procedures to ensure proper operation. Mark this position on the door.

Once the correct positioning is established, tighten the mounting bolt down and then tighten the lock nut against the housing. For extra mounting strength drill two .150" dia. holes throughout the mounting holes in the housing and fasten with two #8 screws (not provided).

To mount the magnet drill two .150"108 dia. holes through the mounting holes in the magnet housing. Fasten down with two #8 self taping screws that are provided. For faster installation remove magnet. Clean door surface with alcohol pad. Dry area off, and mount with the strips of double stick adhesive tape. Mount the tape to the magnet housing first and then attach the housing to the door, pressing firmly to ensure proper adhesion.

RECOMMENDED PRODUCTS

Switch, Magnet & Bracket Included - 2302, 2304

Protecting Overhead or Curtain Doors

APPLICATION 4

Using Magnapull

A quick and easy way to protect overhead doors is to use the versatile Magnapull. There are no brackets to adapt and no drilling through thick steel tracks or channels. Magnapull is also ideal for overhead door applications where there is a lot of play in the door.

INSTALLATION

Fasten cable using 1931 wire clamp so that if the switch is dropped it will not hit the floor.

Mount the magnet housing at approximately a 20˚ angle from vertical to prevent switch damage if door is opened before switch is removed. The end user should be instructed to release the Magnapull switch before the door is opened to prevent damage to the switch.

Position cable so there is slack between magnet housing and wire clamp.

Test proper operation of switch by opening door.

RECOMMENDED PRODUCTS

Switch - 2105; Clamp - 1931

Protecting Overhead or Curtain Doors

APPLICATION 5

Track Mounting of Switch

Installing a security switch on the track of overhead doors.

INSTALLATION

Make sure door does not have a guard that extends around track on bottom of door.

Choose side opposite rope pull or move rope pull to side opposite switch.

Mount bracket 1940 on track with two self-tapping screws. Tighten evenly against track.

Mount switch to Bracket 1940.

Mount Bracket 1912. Mount magnet to bracket, allowing about 1/2" (1.27 cm) gap between switch and magnet. Observe polarity of switch and magnet. Switch and magnet labels must read in same direction.

Test for clearance and operation.

Loosen holding screws on 1940 bracket and apply RTV mounting compound to flat side of track. Tighten screws. Retest.

RECOMMENDED PRODUCTS

1092, 1092A Kits (in some applications 1082TW with 1912 and 1940 brackets)

Protecting Overhead or Curtain Doors

APPLICATION 6

Floor Mounted Contacts

There are many different types of overhead and curtain doors with different mounting surfaces - such as ribs and lips. On the following 4 pages we provide a number of methods for protecting overhead and curtain doors. The application on this page involves the use of Sentrol’s easy-to-mount 1982 magnet with the 2200- series floor-mounted contacts. The 2200 series contacts have active gap distances up to 3" (7.62 cm) and heavy-duty design.

INSTALLATION

To mount the 1982 universal magnet, use bolts through the steel door, or tap holes for #6 stainless steel combo-head screws. The flange of the magnet features slots, allowing you to move the magnet left or right over the screw heads for best alignment.

RECOMMENDED PRODUCTS

Protecting Overhead or Curtain DoorsProtecting Overhead or Curtain Doors

APPLICATION 7

Switch Mounted on "Stop"

Installing security switch on "stop" near top of overhead curtain type door.

INSTALLATION

Close door. Tape magnet in place with masking tape. Position magnet in recessed portion of slat adjacent to door stop. Mount with red end as shown.

Roll up door, making sure magnet clears and does not interfere with operation of door. Close door.

Attach magnet to door with clamps, or with RTV mounting compound.

Attach wires to switch terminals. Attach switch to inside of long portion of bracket. Label must be right side up and facing toward door when bracket is mounted on stop.

Attach bracket to stop with self-tapping screws.

Test proper operation of switch by closing and opening door.

Dress wire leads with wire clamps and hook into alarm loop. Retest for operation and clearance.

RECOMMENDED PRODUCTS

Switch - 1042TW; Magnet - 1923; Bracket 1910-2; Clamps - 1931, RTV-1905.

Protecting Overhead or Curtain Doors

APPLICATION 8

Buried Floor Switch

Sometimes it is necessary to bury a magnetic contact in the floor, due to construction, or to permit fork lifts and other vehicles to pass in and out. A Sentrol switch has been designed for this installation. It features stainless steel for corrosion resistance and a wide gap operation for loose-fitting overhead doors.

INSTALLATION

Select position of switch that will minimize amount of concrete to be chipped out.
Install magnet on door and lay switch on floor. Test to make sure switch operates with at least 1" (2.54 cm) gap. If not 1", adjust magnet position.

Chip concrete out approximately 1/2" deep x 1/2" wide (1.27 cm x 1.27 cm) for switch and cable.

Lay switch in hole and test. Test- make sure of at least 1/2" extra gap. Pull cable through protective conduit and connect to switch.

Test proper operation of switch by closing and opening door.

Cover switch and cable with concrete patch.

RECOMMENDED PRODUCTS

2227A

Protecting Overhead or Curtain Doors