SECO-LARM SD-998C-NUQ — Surface-Mount Electric Rim Strike

Installation manual for the SECO-LARM SD-998C-NUQ Surface-Mount Electric Rim Strike — designed for use with rim-type exit devices with a 3/4" throw Pullman latchbolt.

Introduction

The SECO-LARM SD-998C-NUQ Surface-Mount Electric Rim Strike is designed with the strength and durability for use with rim exit devices with a 3/4" throw Pullman latchbolt. The SD-998C-NUQ features a 3/4" (19mm) thick metal housing, so no frame cutting is required for installation. The strike is fail-safe/fail-secure selectable and features 12/24 VDC operating voltage.

Features

• 12/24 VDC operating voltage, non-polarized connection
• Horizontal adjustment
• 1,500-lb static strength
• 3/4" (19mm) thick metal housing
• Accommodates up to 3/4" Pullman latch
• Current draw: 540mA @ 12VDC
• Dynamic strength: 70 ft-lbs
• Field-programmable for fail-safe or fail-secure operation
• Non-handed, for use with left- or right-hinged doors
• Surface-mount installation, metal or wood frame
• 250,000 cycles (1-million cycles factory tested)
• Works with standard rim-type exit devices, including SECO-LARM SD-962AR-36A, SD-962AR-36G, and SD-962AR-36M
• Plug-in wire connection
• Five-year limited warranty

Specifications

Parts List

• Strike x 1
• Blind nut kit x 1
• Blind nuts x 2
• Allen wrench (hex key) x 1
• Hex socket head cap screws x 2
• Phillips flat head screws x 2
• Butt splice connectors x 2
• Stainless steel mounting tabs x 3
• 24VDC cable connector x 1
• 12VDC cable connector x 1
• Manual x 1

Note: Not all parts will be used in every installation.

Installation Overview

1. Measure and mark the door latch line and the center line of the door.
2. Prepare the door frame for installation.
3. Set either fail-safe or fail-secure operation.
4. Connect to power.

Surface Mount Installation

1. Measure the center line of the latch ("Y").
2. Measure the distance from the door latch to the edge of the door frame — the door latch line ("X").
3. Measure distance "X" from the side of the door frame and distance "Y" from the top of the door frame; mark where the two lines intersect.
4. From this mark, measure up and down 3 3/4" (95mm) and 3 7/32" (82mm) to mark the 4 holes to drill. Mount the blind nuts in the top and bottom holes, and drill the middle holes to accept the Phillips flat-head screws.
5. Make the wire connections, then mount the strike to the frame with the hex socket head cap screws and the Phillips flat-head screws.

Selecting Fail-Safe / Fail-Secure

Remove locking screw #1, loosen, slide, and tighten sliding screw #2 to the desired position. Reinsert and tighten locking screw #1 to lock in the fail-safe or fail-secure setting.

Wiring Diagram

For 12VDC operation: Use the included wiring connector marked "12VDC." Plug the male wiring connector into the female wiring harness connector of the door strike (black wire, red wire, white wire).

For 24VDC operation: Use the included wiring connector marked "24VDC." Plug the male wiring connector into the female wiring harness connector of the door strike.

Troubleshooting

Warranty & Notes

This SECO-LARM product carries a five (5) year limited warranty against defects in material and workmanship from the date of sale to the original customer. SECO-LARM's policy is one of continual development; specifications are subject to change without notice.