SECO-LARM SD-993B-SS Electric Shear Lock Installation Guide

SECO-LARM SD-993B-SS Electric Shear Lock

Features

• Concealed security for remote access and exit control of aluminum and steel doors or gates.
• Zinc-plated magnet and armature, aluminum anodized housing.
• The power for the SD-993B-SS is to be provided by a Listed (UL294, CAN/ULC-S533 or UL603)Class 2 Power Supply
• Use with an optional digital keypad for keyless high security.
• Smaller size for use with most metal door jambs.
• The SD-993B-SS is intended to use as access control system accessory which are installed in accordance with the manufacturer’s installation and operation instructions, ANSI/NFPA 70 and the local authority having jurisdiction. Holding Force has not been verified by UL.
• Spring-loaded locking bolts and magnetic bond holds doors securely in place with approximately 1,500 pounds (680kg) of shear holding force.
• Armature plate adjusts to compensate for gaps between door and frame.
• UL294 Indoor use, UL1034 Indoor use
• Works with sliding, single-action, and double-action (swing-through) doors and gates.
• Fail-safe operation (unlocks if power is lost).

NOTE: The products shall not impair the intended operation of an emergency exit or panic hardware mounted on the door.

PARTS LIST

• 1x Magnet assembly
• 1x Armature assembly
• 4x Spacers
• 1x Hex wrench
• 16x Metal screws
• 2x Springs (for use when the SD-993B-SS is mounted vertically)

Specifications

Holding force has not been verified by UL certifications.

Overview

Mounting Location

1. Top of Door — Mount here for best results, as this allows flexibility against direct attacks against the door. Mount close to the corner opposite the hinges. (see Fig. 1)
2. Middle of Door, Opposite the Hinges — This works well in most situations. If mounting is required here, mount halfway up the door for greatest strength. Add extra springs to the armature assembly (see Fig. 4, pg. 5).
3. Bottom of the Door – Not recommended as dirt build up could affect operation.

Installation Notes:
Install the magnet assembly into the door frame before installing the armature assembly into the door. The magnet assembly requires space to run wires, as well as space for the recessed portion of the unit. However, make sure that the position selected for the magnet assembly leaves enough room in the door to install the armature assembly.

Installation – Cut the Door Frame (See Fig. 2):

1. Find the Center Line:
a. Close the door and let it rest naturally.
b. Use a pencil to trace the position of the outside face of the door on the door frame. If mounting on the top of the door, this line should be near the top corner away from the door hinges. Leave enough room to mount the magnet assembly in the door. If mounting on the side of the door, this line should be drawn near the center of the door, but not near any physical locking mechanisms.
c. Measure the width of the door, then draw a line on the door frame parallel to the first line at that distance. These two lines will show where the door rests relative to the door frame when it is closed.
d. Measure and trace a line between these two lines. This is the door frame center line. IMPORTANT: Make sure the place you choose to mount the magnet assembly is clear of obstructions and door adjustment bolts before making any cuts. Allow enough room inside the door frame at both ends of the magnet assembly to install the mounting tabs.
2. Tape the door frame template to the door frame, lining the template’s door frame center line with the door center line you just drew.

For Hollow Metal Door Frames

1. Cut out the rectangular piece of metal as shown on the door frame template.
2. Drill the four holes (two on each end) as shown on the door frame template.
3. Using the included metal screws, mount the mounting tabs.
4. Run the wires.

For Wood Door Frames:

1. Rout or cut a 11/16″ (27mm) deep, 513/16″x13/16″ (147×30 mm) hole for the cavity of the magnet assembly as shown in the door frame template.
2. Rout or cut a 3/16″ (5mm) deep, 5/8″x13/16″ (17×30 mm) hole at each end of the cavity.
3. Run the wires.

Wiring Diagram

1. Set for power supply type (12VDC or 24VDC) – Use the jumpers to set voltage setting (see Fig. 3).
2. Connect to power
3. One terminal positive, one to negative (non-polarized)

Installation – Cut the Door:
NOTE: When mounting vertically near the center of the door, disassemble the armature assembly and add the two included springs. This improves the unit’s push-off. (See Fig. 4).

1. Determine where to mount the armature assembly in the door. It should line up with the magnet assembly. (See Fig. 4).
2. Draw a line between the front and back door faces. This is the door center line (see Fig. 2).
3. Tape the door template to the door, lining the door template’s door center line with the door center line you just drew.

For Hollow Metal Doors:

1. Cut out the rectangular piece of metal as shown on the door template.
2. Drill the four holes (two on each end) as shown on the door template.
3. Using the included metal screws, mount the mounting tabs.

For Wood Doors:

1. Rout or cut a 15/8″(42mm) deep, 513/16″ x 13/16″ (147x30mm) hole for the cavity of the armature assembly as shown in the door template.
2. Rout a 3/16″ (5mm) deep, 5/8″ x 13/16″ (17x30mm) hole at each end of the cavity.

Adjust armature screws to compensate for the gap between door and frame. (see Fig. 4)
Fig. 4 Lining up Magnet Assembly and Armature Assembly

NOTE: When mounting vertically, disassemble the armature assembly and add extra springs for better push-off.

Installation – Mount the Magnet Assembly and Armature Assembly:

1. Double-check your work – Make sure the magnet assembly and armature assembly line up properly. Make any adjustments. (see Fig. 5)
2. Using the screws provided, mount the magnet assembly onto the door frame, and the armature assembly onto the door.
3. Use washers or flat pieces of metal to act as shims as necessary to mount the magnet assembly and armature assembly flush with surface.
4. Close the door and note the gap between the armature assembly and the magnet assembly. Using the included hex wrench, adjust the nickel-plated portion of the armature assembly to make the gap as small as possible without interfering with the opening and closing of the door.
5. Apply power and test the operation.

Fig. 6 Adjustment Of SD-993B-SS Electric Shear Lock

Installation for Surface Mounting (SD-993S-SB):

Surface-mount (magnet and armature)
Use 2 x surface-mount brackets

The magnet assembly is in the bracket above the door, and the armature assembly is in the bracket on the door.

Flush mount (magnet) Surface mount (door)
Use 1 x surface mount bracket

The magnet assembly is flush to the door frame or header, and the armature assembly is in the bracket on the door.

Installation for Glass Door Mounting (SD-993S-UB):
May require 1 or more SD-993S-SB and SD-993S-UB bracket kits, depending on the glass door configuration.

NOTES: One glass door with a glass frame illustrated above.

Accessories

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