8371/ 8372 Electromagnetic Lock Installation Instructions
(Continued)
Troubleshooting Guide
5
Problem
Solution
Cannot remove the lock mounting bracket from top of magnet for
installation.
Remove anti-tamper screw and cavity cover screw. A second anti-
tamper screw will be visible after the cavity cover is removed.
Insert supplied Allen wrench into mounting bolt holes in the bottom
of the lock housing and turn. (See Fig. 2 and 3.)
LED goes out when door is locked
Check input polarity.
Lock is installed but has no holding force at all.
Check power supply. DC power should be slightly over the voltage
specifications outlined on the packaging. eg: for 12VDC operation
supply should be set at 12VDC-13VDC.
Check connections at power supply, connected releasing devices,
lock terminals and lock circuit board to magnet core.
Lock has enough holding force to lightly hold a screwdriver or set
of pliers but door will not lock.
Check to see that armature plate is correctly aligned with the
electromagnetic lock.
If there is improper alignment, make a 1/4” turn of the armature plate
mounting bolt and check for alignment.
Make sure to follow the armature plate mounting instructions on the
template and Page 1 of this install.
Lock is operating and locking but the armature plate is
“humming” against the surface of the lock.
This generally indicates that the lock is either operating on AC
voltage or there is some AC voltage present in the DC supply. A
properly filtered and regulated DC power supply is required to
achieve optimal operation from the lock.
Lock is not releasing immediately upon removal of power
Ensure that switching devices are interrupting the DC power and
not the AC power supply voltage.
Ensure rubber washer on armature plate mounting bolt has not
been removed or damaged
Check that switching device interrupts the positive wire and
not the negative wire (See Fig. 1)
Remove any Diodes or other suppression devices that may be
installed.
Listings
These products have been successfully tested and evaluated by UL
in two separate categories for use in both the United States and
Canada.
Auxiliary Lock. The GWXT fire listing qualifies these for
use with UL Classified fire doors maximum 4’ in width
and 8’ in height. The 8371 and 8320 are rated up to and
including 1 hr.
Special Locking Arrangement Component. Additionally,
these products are qualified components for the purpose
of locking outward-swinging exit doors against unauthorized egress.
They are designed to release automatically in case of a power failure
or upon activation of an automatic fire alarm system wired to the
power supply fire panel relay.
The Following Conditions of Acceptability Apply:
1) This product is intended for use with Special Locking
Arrangements which are installed in accordance with the
manufacturer’s installation and operation instructions, the Life Safety
Code, NFPA 101 of the National Fire Protection Association and the
local authority having jurisdiction.
2) The power for this unit is to be provided by a Listed (ALVY,
FULA, or APHV) Class 2 power supply when designated as a Special
Locking Arrangement (FWAX).
3) The suitability of the lead wires is to be evaluated per the
requirements for the end-use product.
4) If the product is installed in conjunction with a fire alarm control
panel, the wiring from the control unit to this product device shall be
for fail-safe operation.
UL testing was conducted on standard models without accessories.
These locks are not intended or tested for use as a UL Listed Burglar
Alarm System Unit.
CAMERA-READY LOGOTYPE FOR TYPE L AND TYPE R LISTING MARKS FOR CANADA AND THE U.S.
These Marks are registered by Underwriters Laboratories Inc.
The minimum height of the registered trademark symbol ® shall be 3/64 of an inch. When the overall diameter of the
UL Mark is less than 3/8 of an inch, the trademark symbol may be omitted if it is not legible to the naked eye.
The font for all letter forms is Helvetica Condensed Black, except for the trademark symbol ®, which is
Helvetica Condensed Medium. No other fonts are acceptable.
Please Note:
The word "MARINE" should only be used for UL Classified marine products.
200-195F 20M/11/97
PLEASE DELIVER ALL INSTALLATION INSTRUCTIONS TO THE
END-USER UPON COMPLETION OF THE INSTALLATION
