Activating Timer-To-Close (Ttc); Maintenance; Care Of Your Door Operator - LiftMaster DDO8900W Manual Del Usuario

Programming
Timer to Close (TTC) Activation:
TIMER TO CLOSE PROGRAMMING VIA THE OPERATOR:
• Press and release the yellow Learn button 4 times to activate the TTC programming mode.
• The yellow learn LED and UP Arrow will turn ON as an indication that the operator is in TTC programming mode.
• The operator can move between OFF/1/5/10 minutes increments using the UP and DOWN arrows. The yellow learn LED will blink
corresponding to the number of minutes selected. For example, if the user selects 5 minutes, the yellow learn LED will blink 5 times.
• Press the rectangular adjustment button to save the setting and exit the TTC programming mode.
• The operator TTC programming mode will time out after 30 seconds unless the rectangular adjustment button is pressed. If the
programming timer expires, the TTC will retain its previous setting.
• To Exit an uncompleted TTC programming session, press and release the learn button one more time to exit.
USER feedback If TTC timer is actively counting down: The last 10 seconds of timer to close provides audible alert from the operator.
This cannot be turned off.
TTC TIMING CHANGE:
• Press the yellow learn button 4 times to activate the TTC programming mode.
• When reentering activation mode, TTC settings will be reset to OFF. For example, the existing timer is set to 5 minutes and the user
wants to reset to 10 minutes. To do so, the user will need to press the UP button until the Learn LED blinks 10 times for 10 minutes.
TTC DEACTIVATION:
• Enter into TTC programming mode as described above.
• Press the rectangular adjustment button to save the setting.
TTC TEMPORARY SUSPENSION
• Timer can be suspended while in the open position by pressing the OPEN button during the 10 second TTC warning (audible beeping
from the operator - 10 second countdown prior to TTC activation).
TTC OPERATION WITH IR SENSORS :
• The TTC feature will not be activated if IR sensors are not connected to the operator.
• If the TTC is active, the timer is counting down, and the IR beams are interrupted, the TTC timer will be restarted.
• If the door encounters an IR sensor obstruction while closing, it will reverse open and not close until the IR sensor obstruction has
been cleared.
IF TTC is active, visual warnings can be added to alert bystanders before a door starts closing. See optional accessories.
TIMER TO CLOSE PROGRAMMING VIA AN OPTIONAL WALL CONTROL
• The 880LM LCD Control Panel or the 881LM Motion Detecting Control Panel with Timer to Close can be wired into the Red/White
terminals as an optional control station. Both of these panels offer the Timer to Close feature. See instructions for wiring and
programming TTC in the instruction manuals provided with those panels.

Maintenance

Care of Your Door Operator

MAINTENANCE SCHEDULE
Once a Month
• Manually operate door. If it is unbalanced or binding, call a trained door systems technician.
• Check to be sure door opens and closes fully. Adjust limits if necessary (see Adjustment Step 1).
• Repeat the safety reverse test. Make any necessary adjustments (see Adjustment Step 3).
Once a Year
• Oil door rollers, bearings and hinges. The door operator does not require additional lubrication. Do not grease the door tracks.
NOTICE: This device complies with Part 15 of the FCC rules and Industry Canada's license-exempt RSSs. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that
may cause undesired operation.
Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
This device must be installed to ensure a minimum 20 cm (8 in.) distance is maintained between users/bystanders and device.
This device has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules and Industry Canada
ICES standard. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interfer-
ence to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to
try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
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