Nortek Security & Control Mighty Mule HD272 Installation Manual page 5

Important Safety Information
For the Installer and End User
III. After Installation
1. Attach the warning signs (included) to each side
of the gate to alert the public of automatic gate
operation. It is your responsibility to post warning
signs on both sides of your gate. If any of these
signs or warning decals becomes damaged,
illegible, or missing, replace them immediately.
Contact NSC for free replacements.
2. The gate is automatic and could move at any
time, posing serious risk of entrapment. No one
should be in contact with the gate when it is
moving or stationary.
3. Do not attempt to drive into the gate area while
the gate is moving; wait until the gate comes to a
complete stop.
4. Do not attempt to "beat the gate" while the gate is
closing. This is extremely dangerous.
5. Do not allow children or pets near your gate.
Never let children operate or play with gate
controls. Keep the remote control away from
children and unauthorized users; store controls
where children and unauthorized users do not
have access to them.
6. KEEP GATE SYSTEMS MAINTAINED.
Always turn power to operator OFF before
performing any maintenance. See page 28 for
maintenance procedures.
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HD272 Installation Instructions
7. To operate this equipment safely, YOU must
know how to disconnect the operator for manual
gate operation (see page iii). If you have read the
instructions and still do not understand how to
disconnect the operator, contact the Mighty Mule
Service Department.
8. Disconnect the operator ONLY when the power
is TURNED OFF and the gate is NOT moving.
9. Make arrangements with local fire and law
enforcement for emergency access.
10. Distribute and discuss copies of the
IMPORTANT SAFETY INFORMATION
section of this manual with all persons
authorized to use your gate.
11. IMPORTANT: Save these safety instructions.
Make sure everyone who is using or will be
around the gate and gate operator are aware
of the dangers associated with automated gate
systems. In the event you sell the property
with the gate operator or sell the gate operator,
provide a copy of these safety instructions to
the new owner.
Should you need a replacement manual, a copy
can be obtained by downloading one from the
Mighty Mule web site (www.mightymule.com),
by contacting NSC by calling 1-800-543-4283
and requesting a duplicate copy. One will be
provided to you.
Important Safety Information
For the Installer and End User
Mighty Mule gate operators utilize Dual Sense
Technology™ entrapment protection. Dual Sense
Technology™ is built into every Mighty Mule and
provides redundant methods of entrapment protection
for open and close gate directions.
In addition to Dual Sense Technology, every Mighty
Mule gate controller has provisions for the connection
of additional obstruction detection devices such as
sensing edges and photo beams.
These devices may be located where there is an
increased risk of obstruction. Refer to the diagram
below.
Vehicular Gate
Photo Beam
Sensing Edges
(recommended, not included)
(recommended, not included)
Entrapment and Obstruction Protection
Mighty Mules' Dual Sense Technology™ provides entrapment protection when properly adjusted. Since all installations
are different, you may need to add photo beams or sensing edges to help prevent damage to vehicle or other items that
could be hit by a moving gate.
Entrapment Alarm
The Mighty Mule Automatic Gate Operator is designed to stop and reverse the gate when the gate comes in contact with
an obstruction. Additionally, these operators are equipped with an audio entrapment alarm which will activate if the unit
obstructs twice while opening or closing. This alarm will sound for a period of 5 minutes, or until the operator receives
an intended signal from a hard wired entry/exit source (e.g. push button control or keypad) and the gate returns to a fully
open or fully closed position. Turning the power switch on the control box OFF and back ON will also deactivate the
alarm. Wireless controls such as transmitters and wireless keypads will not deactivate the alarm.
One or more edge sensors may be located at the
leading edge, bottom edge, and post edge, both inside
and outside of a vehicular swing gate system.
Wiring to sensors must be located and arranged so the
wiring between the sensor and the gate operator is not
subjected to mechanical damage.
A wireless sensor such as one that transmits radio
frequency (RF) signals to the gate operator for
obstruction protection functions shall be located
where the transmission of the signals is not blocked or
impeded by building structures, natural landscaping or
similar objects.
Leading Edges
of gates
Vehicular Gate
Photo Beam
Sensing Edges
(recommended, not included)
(recommended, not included)
HD272 Installation Instructions
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