DORTRONICS SYSTEMS TJ1107 D Series Mounting Instructions

MOUNTING INSTRUCTIONS: TJ1107xD TOP JAMB Series

Electro-Magnetic Lock for In-Swing Doors
READ THOROUGHLY BEFORE INSTALLING
Handle electro-magnets and armatures carefully. Any damage to the mating surfaces may significantly reduce
holding efficiency.
The TJ1107 Series electro-magnet assembly mounts firmly and rigidly to the face of the header using an L-Bracket. The
armature is held by the Z-Bracket which mounts to the interior face of the door. Special hardware is used to allow the armature
to automatically align with the face of the electromagnet for maximum holding force when the magnet is energized.
A 2-1/4" wide flat surface is required to mount the TJ1107 series magnet and L-Bracket assembly (see Figure 1). For uneven
or irregular surfaces, the use of shims or filler plates may be required. See the Application Bulletin (attached) for diagrams of
typical door configurations and part numbers for spacers, filler blocks, shims and mounting brackets required for each type of
installation.
For hollow metal door and similar installations requiring drilling and tapping, the material thickness should be at least 1/8".
Sheet metal screws may be used for wood doors and clad doors. For thinly clad doors or wooden doors without sufficient solid
backing, a reinforcing plate may be required. Call Dortronics technical assistance for help with unusual mounting applications.
Before starting, make sure the correct drill template is available for the type of installation planned. Door swing and
construction, door frame material and configuration must be considered before deciding on the proper mounting kit and
method.

STEP 1) DOOR FRAME PREPARATION

The electromagnet assembly is carried by an L-Bracket that mounts directly to the header – see Figure 1. Before drilling any
holes in the header, trial fit the bracket and magnet assembly to make sure that it will mount flush to the bottom of the header
with sufficient clearance for the door to operate without interference.
Use the supplied template to mark the door frame header or drilling. Depending on the material, size the drill bit for either #14
Sheet Metal screws or for tapping 1/4-20 machine screws. Drill clearance hole through header for wire passage. Break all
sharp edges to prevent damage to wire insulation and potential short circuits. Use the washers supplied to prevent the
machine screws loosening over time.
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REV#0001A
REV#0002A
For wood jambs or clad door framing,
the structure must be capable of
carrying the holding force generated by
the magnet. The use of reinforcing
material or bolting through the header
may be required.
Figure 1
TJ1107xD