Installing the Detex AO19 Low Energy Door Operator

At this point the arm is installed. The difference between the arm assembly of this low power operator and a door closer is the foot (shoe) shaft is cut to size. To determine the length of this shaft, the operator is powered and the switch is switched to the “Hold Open” position. The spindle will rotate to and remain at the open position. The arm is then placed onto the spindle arm so the shaft is at a 50 to 60-degree angle (for a three-foot door) through the door opening. Attach the arm in this position. Test the operation to be certain the arm returns to this angle several times.

With the foot installed 16 inches from the door hinge edge, mark the position of the arm receptacle onto the shaft. The position should be almost to the rear of the receptacle arm shaft opening. Cut the rod to length. Install. Test the operation of the AO19.

Next, install Detex Advantex® rim exit device with electric latch retraction. Electric latch retraction is necessary for the exit device to retract the latch before the power door operator begins to open the door. The AO19 has an electric lock switch that delays the door from opening until the exit device, lock, electric strike or magnetic lock unlocks permitting the door to swing.

For this portion of the installation, the black and red wire was run from the AO19 into the jamb and out the wire hole for the Detex electrified hinge, part number EWH8-626 The Electrified Hinge replaced the existing center hinge on the active door. This 4-1/2” x 4-1/2” x 5 knuckle hinges contains eight wires. For this installation, the red and black 20 gauge wires connected the rim exit device to the power supply electric lock switch. The hinge wires for this side are longer to connect directly to the exit device.

The remote control receiver was attached to the rear of the case using Velcro. Four screw covers were removed from the push plates and set to match the receiver and the dip switches were set.

The Advantex and the trim were installed at the height of the cylindrical lock. A small piece of stainless steel was used to cover the exposed portion of cylindrical locks’ cross bore opening. Because the inactive door has a 16-gauge steel parting strip on the inside, there was no need to install a separate strike plate.

The operation of the AO19 and Advantex exit device were tested. The default values of adjustments were sufficient for the initial operation of the door. For handicapped applications, it is recommended that someone in a wheel chair operate the AO19 to be certain the times are sufficient for safe access and egress.

The Detex AO19 has a number of adjustments for the operation of the door, located on the controller. These include speed adjustments:

Closing adjustment of 2-30 seconds (default is 5 seconds)

Latch adjustment of 1-3 seconds (default is 1.5 seconds)

Open adjustment of 2-20 seconds (default is 5 seconds)

The Hold Open adjustment under the timer area is identified as Activation. The adjustment range is 1-60 seconds with the default of five seconds.

The opening and closing force adjustment is from five to fifteen pounds with the default at ten pounds. Consult your local authority having jurisdiction for your area’s requirements.

When installing the push plates, provide sufficient time for the person to operate the plate and then enter or leave without the door closing on them. For this installation, the two wireless push plates were installed onto the interior and exterior walls adjacent to the door. Because this is a left hand door, the exterior push plate was installed onto the left side of the opening. The interior push plate was installed onto the left side about fifteen feet back from the doorway on the perpendicular wall.

The provided signage was installed at 50” +/- 12” above the finished floor on each side of the door.

The AO19 is designed to accommodate a 13-inch reveal when installed onto a push application. Contact factory for a reveal that is greater than 13 inches.

The Detex AO19 has a number of standard features that are not applicable to this installation. These features include:

Adjustable delayed activations when installed in multiple (sequenced) vestibule doorways or mantraps.

Adjustable door reversal feature for an obstruction of five pounds or greater. The door stops moving and reverses directions. Must be selected.

Push & Go feature activates when door is manually pushed to open. Must be selected. An optional application for the handicapped. An alternative means of access to using push plates.