SECO-LARM SD-991A-D1Q User manual

®
Mini fail-secure electric door strike
12VDC operation
Includes no-cut and low-cut strike plates
Door remains locked if power is lost
Reversible non-handed design
2.
SD-991A-D1Q
Mini Electric Door Strike
Manual
Features:
Can be used with almost any cylindrical
door locking system
Suitable for office-type applications
Compatible with digital keypads, pushbutton
switches and other entry devices
1.

SECO-LARM Mini Electric Door Strike
SECO-LARM U.S.A., Inc. 2
1x
Door strike
2x
Mounting screws
2x
Splice connectors
2x
Strike plate screws
1x
Mounting template
1x
Manual
1x
Stainless steel no-cut strike plate
(SD-991SS-61Q/S)
1x
Silver low-cut strike plate
(SD-991RA-61Q/A)
Operating voltage
12VDC
Current draw
280mA@12VDC
Holding force
1,000-lb (454kg)
Endurance
250,000 Cycles (Factory tested)
Latch throw
1/2" (13mm)
Keeper
width
SD-991SS-61Q/S
11/8" (28mm)
SD-991RA-61Q/A or B
13/16" (30mm)
Operating humidity
0~85% (Non-condensing)
Operating temperature
14°~120° F (-10°~49° C)
Specifications:
Overview:
Features:
Parts List:
Converts cylindrical lock sets into an electronic
access-controlled locking system
Fail-secure operation –Door remains locked if
power to the strike is lost
2-wire installation, non-polarized connection
Stainless steel keeper for strength and
long life
Can be used with virtually any cylindrical door
locking system
Can be used with an optional digital keypad,
pushbutton switch, etc.
Suitable for office-type applications
Reversible non-handed design fits either
right-hand or left-hand doors
Shallow design for use with most metal doors
Powered by a solenoid, not a buzzer coil
For indoor use only
Optional bronze low-cut strike plate
(SD-991RA-61Q/B) available:
oFits most metal or wood doors with
minimum cutting of door frame beyond the
hole for the strike
Stainless Steel No-Cut Plate
SD-991SS-61Q/S
Silver/Bronze Low-Cut Plate
SD-991RA-61Q/A or B
1"
(25mm)
1/8"
(3mm)
1/2"
(13mm)
15/16"
(24mm)
1/16"
(2mm)
5/8"
(16mm)
23/4" (70mm)
13/16"
(30mm)
23/4" (70mm)
11/8"
(28mm)
111/16"
(43mm)
21/8" (54mm)
11/8"
(28mm)
17/16"
(36mm)
13/4"
(45mm)
11/8"
(28mm)
11/2"
(38mm)
21/8" (54mm)

SECO-LARM Mini Electric Door Strike
SECO-LARM U.S.A., Inc. 3
Features:
Installation:
For Timely®interior door frames (see Fig. 1):
The no-cut door strike should fit into the door strike cutout of
Timely interior door frames without making any new cuts or
screw holes. However, in rare cases because of how the door
latch was installed, it may be necessary to cut out a small piece
of the frame, or drill new screw holes.
For non-Timely®interior door frames:
1. Measure the center line (see Fig. 2):
a. Measure the distance from the floor to the center
of the door latch. Ignore the location of the
deadlatch pin when taking measurements.
2. Measure the latch line (see Fig. 3):
a. Measure the distance from the door latch to the
edge of the door jamb. This is the “door latch line”.
3. Align the included mounting template to the latch line
and center line (see Fig. 4).
4. Using the template as a guide, cut a hole in the frame
to fit the door strike. In most cases, the surface-mount
no-cut strike plate will work.
5. In the rare case where a deeper cut into the frame is
needed to match the door latch, use the template to
cut out space for the low-cut strike plate.
6. Mount the electric door strike with the appropriate
strike plate into the hole to ensure it does not interfere
with the closing of the door, and that it properly
catches the door latch. Make adjustments if needed.
Wire the electric door strike (see Fig. 5):
1. Connect the two wires of the electric door strike to
the wires from the access control or egress device
(keypad, pushbutton switch, pushbar, etc.), and
insulate with electrical connectors or electrical
tape. Polarity is not important. Make sure no bare
wires are exposed.
2. Conceal all wires in the door frame.
3. Tightly mount the electric door strike to the frame
with the included door frame mounting screws.
Door jamb
Door latch
Fig. 4
Door jamb
Latch line
Center line
Mounting
template
Fig. 3
Door latch
Deadlatch pin
Door latch line
Door jamb
Fig. 5
Fig. 1
Metal frame
Wood frame
Fig. 2
Center line

SECO-LARM Mini Electric Door Strike
SECO-LARM U.S.A., Inc. 4
Electric strike does not activate
Unmount the strike and check that the two wires are
connected properly
Ensure the wires are connected to a 12VDC source
Use a multimeter to test that the strike is receiving the
proper voltage and amperage. If it is not, it may be
necessary to use heavier gauge wires, or increase the
output of the power supply
Make sure the activation device (keypad, pushbutton
switch, etc.) is working properly
Door does not open when the electric strike
is activated
Check that the door latch is operating properly and
replace if necessary
The position of the electric strike may need to be adjusted
by moving it or adding washers or shims
Troubleshooting:
SECO-LARM® U.S.A., Inc.
16842 Millikan Avenue, Irvine, CA 92606
Website: www.seco-larm.com
Phone: [phone] | [phone]
Email: [e-mail]
®
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NOTICE: The SECO-LARM policy is one of continual development and improvement. For that reason, SECO-LARM
reserves the right to change specifications without notice. SECO-LARM is also not responsible for misprints. All trademarks
are the property of SECO-LARM U.S.A., Inc. or their respective owners. Copyright © 2017 SECO-LARM U.S.A., Inc. All
rights reserved.
WARRANTY: This SECO-LARM product is warranted against defects in material and workmanship while used in normal
service for one (1) year from the date of sale to the original customer. SECO-LARM’s obligation is limited to the repair or
replacement of any defective part if the unit is returned, transportation prepaid, to SECO-LARM. This Warranty is void if
damage is caused by or attributed to acts of God, physical or electrical misuse or abuse, neglect, repair or alteration,
improper or abnormal usage, or faulty installation, or if for any other reason SECO-LARM determines that such equipment
is not operating properly as a result of causes other than defects in material and workmanship. The sole obligation of
SECO-LARM and the purchaser’s exclusive remedy, shall be limited to the replacement or repair only, at SECO-LARM’s
option. In no event shall SECO-LARM be liable for any special, collateral, incidental, or consequential personal or property
damage of any kind to the purchaser or anyone else.