
PROGRAMMING
TIMER TO CLOSE (TTC)
Timer to Close feature enables the operator to close the door after 
a preset time, adjustable from 5 to 60 seconds. LMEP must be 
connected and unobstructed in order to activate this feature. See 
installation section for proper LMEP installation.
PROGRAMMING TTC
1. Begin with door in fully closed position
2. Press and release the LEARN button (DIAGNOSTIC LED will 
light.)
3. Press and release the TTC button.
4. Every press and release of the STOP button will add 5 seconds 
to the Timer to Close. Example: 30 second TTC = 6 presses of 
the STOP button.
5. Press and release the TTC button to exit programming mode.
6. The DIAGNOSTIC LED will flash once per 5 seconds of timer 
setting.
The TTC will become active after completion of the next open 
cycle.
NOTE: LED does not indicate that timer is running.
CLEARING TTC
1. Press and release the LEARN button (DIAGNOSTIC LED will 
light.)
2. Press and hold the TTC button for at least 6 seconds.
3. DIAGNOSTIC LED will flash rapidly when button is released.
TIMER DEFEAT
The TTC can be temporarily disabled by pressing the STOP button 
on the logic board or STOP button on the 3-button control 
station.
TTC becomes active after next open cycle
DETERMINE AND SET WIRING TYPE MODE
Read the descriptions of the wiring types to determine which 
setting will be correct for each application.
TYPE
C2 Momentary contact to open and stop with constant pressure 
to close, open override plus wiring for sensing device to 
reverse. Timer to Close feature not available.
B2 Momentary contact to open, close and stop, open override 
plus wiring for sensing device to reverse. Timer to Close 
(TTC) feature available. (LMEP is required for this wiring
type mode).
The operator factory defaults to C2 mode when installed without a 
LiftMaster Monitored Entrapment Protection (LMEP) device and 
B2 mode when an LMEP is installed.
•   If C2 mode is desired in conjunction with an installed LMEP 
press and hold LEARN and CLOSE for 3 seconds until 
DIAGNOSTIC LED goes off. 
•   To return to standard operation press and hold LEARN and 
Stop for 3 seconds until DIAGNOSTIC LED goes off.
PROGRAMMING REMOTE CONTROLS
Built in 315 MHz radio receiver permits as many as 20 
Security✚®remote controls or dip switch remote controls in any 
combination.
SINGLE BUTTON REMOTE CONTROLS
1. Press and release the LEARN button (DIAGNOSTIC LED
will light.)
2. Press and hold the button on the remote 
control until the Diagnostic LED flashes 
rapidly, then release to complete 
programming (LED will go out).
3. Repeat steps 1 and 2 for additional 
remotes.
3-BUTTON REMOTE CONTROLS
1. Press and release the LEARN button (DIAGNOSTIC LED will 
light.)
2. Press and release the 
desired function for the 
remote button (OPEN, 
CLOSE or STOP.)
3. Press and hold the 
desired button of the remote control until DIAGNOSTIC LED 
flashes rapidly, then release.
4. Repeat for programming other buttons that are desired.
ERASING REMOTE CONTROLS
Press and hold the LEARN button (over 5 seconds) until the 
DIAGNOSTIC LED flashes rapidly. All learned remote controls will 
be erased.
DIAGNOSTIC
D14
LEARN
DIAGNOSTIC
D14
C18
LEARN STOP CLOSE OPEN
NOTICE: To comply with FCC and or Industry Canada (IC) rules, adjustment or modifications of this 
receiver and/or transmitter are prohibited, except for changing the code setting or replacing the 
battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.
Tested to Comply with FCC Standards FOR HOME OR OFFICE USE. 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.
MODE OPEN CLOSE STOP REVERSE FROM TTC
B2 X X X X
B2 
with X X X X WHEN
TTC OPEN
C2 XXX
RADIO OPERATION
To prevent possible SEVERE INJURY or DEATH, install 
reversing sensors when:
• The radio is used. 
• The 3-button control station is out of sight of the door.
• Or ANY other control (automatic or manual) is used. 
Reversing devices are recommended for ALL installations.
 © 2008, The Chamberlain Group, Inc.
01-34371 All Rights Reserved