Detex ML-1548 User Manual
Life safety, security and security assurance, Where t rust is built
The ML-1500 Series ElectroMagnetic Lock is mounted to the
underside of the header, on the stop side of the door.
The armature is mounted to the door. A hardware kit is provided to
compensate for misalignment and wear of the door, by allowing the
armature to pivot on it’s center point.
INSTALLATION INSTRUCTIONS
ML-1500 SERIES ELECTROMAGNETIC LOCK
1. Inspect the frame header to determine if an angle bracket or filler plate
is required. See Figure 1 for Regular mounting.
Alternative mounting on page 3.
FIG. 1
Regular
2. Fold template as indicated by dotted line. For single doors, locate
template against the door and header on the lock jamb side of the
frame.
3. Mark and drill holes as indicated by template . For armature plate hole
preparation, see Figure 2A, 2B, 2C.
3A. Add both spring pins to armature plate. See page 4.
4. Mount armature to door. To determine proper hardware (provided), see
Figure 2A, 2B, 2C.
5. Install mounting plate to header with the interlock detail away from the
door side of the stop, with #10 Flt Hd. Screws provided.
FIG. 2A HOLLOW METAL DOOR
From Sexnut side of door, drill exactly 1/2” hole thru one metal thickness
only. From Armature side of door, drill 5/8” hole to insert reinforcement
tube. Press in sexnut and reinforcement tube all the way and mount
armature to door using hardware provided per Figure
2B.
6. Holding the magnet housing at each end, engage the entire
length of the interlock detail, by pushing towards the door.
(If necessary, tap with a soft hammer to ensure proper alignment
and engagement).
Caution: The lock body must be held in place until
secured with mounting screws. Screws provided inside the
housing at each end. Tighten the screws and check alignment.
7. Remove front plate to access electronics. See page 2 for wiring.
8. Test operation. When all is operating properly, tighten all
screws. Install anti-tamper plugs over socket head screw
using a soft hammer to avoid damage to the housing.
Electromagnet and armature should be handled carefully.
Any damage to the surface such as paint, burrs, dirt and rust
may hinder bonding of surface and reduce holding power.
SHOULD THE SURFACE PLATING BE DAMAGED:
Do not touch the lock face with your hands.
Using a soft, clean, dry cloth or abrasive cloth (i.e., Scotch-Brite),
clean lock face. Do not use sand paper.
A rust inhibitor such as M1, manufactured by Starret, or LPS3,
manufactured by LPS Laboratories (available at most hardware stores)
can then be applied. Apply a coat of inhibitor to armature face also.
FIG. 2B SOLID DOOR
Drill 3/8” hole thru door. From sexnut side of door, drill exactly 1/2” hole,
1-3/8” deep. Mount armature to door with hardware provided per Figure
2A.
FIG. 2C REINFORCED DOOR
Drill and tap for 5/16-18 machine screw. Mount
armature to door with hardware provided per Figure
2C.
Page 1
103162
ARMATURE
RUBBER
WASHER
WASHER
DOOR
1-3/8“
SEXNUT
1/2“
5/16-18 SOC HD
SCREW
WITH 3/16 (5MM)
ALLEN HEX
REINFORCEMENT
TUBE
1-3/4“ HOLLOW
METAL DOOR
5/8“ DRILL
STEEL WASHER
RUBBER WASHER
5/16-18 SOC HD
SCREW
WITH 3/16 (5MM)
ALLEN HEX
ARMATURE
1/2” DRILL
SEXNUT
ARMATURE
RUBBER
WASHER
WASHER
Add as required
5/16-18
3/8“ MIN
METAL
Reinforcement
by others
DOOR
5/16-18 SOC HD
SCREW
WITH 3/16 (5MM)
ALLEN HEX
Detex Corporation
302 Detex Drive
New Braunfels , Texas 78130
www.detex.com Tel : (800) 729-3839
P/N 103162 September 18, 2008
Page 4
103162
Add both spring pins to armature
Life Safety, Security and Security Assurance
Where T
rust is Built
Life Safety, Security and Security Assurance
Where T
rust is Built