Chamberlain RollerLift Plus CR855MYQ Installation And Operating Instructions Manual Download Page 10

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SETTING THE LIMITS FOR RIGHT OR LEFT HAND OPERATION AND FORCE

Travel limits set how far your door goes up and down. Your opener must also be configured for right or left hand
installation. If not the door will rotate in the reverse direction.
Program Buttons: The Control Panel diagram in section 4 identifies the Control Buttons and LED layout
Audible Beep: An audible “BEEP” also occurs with each button press. This feature can be turned OFF
Courtesy light: During the programming sequence, the courtesy light will flash at half strength
NOTE: The RollerLift Plus (CR855MYQ) opener is factory configured for right hand installation.

The opener will operate during this procedure. Make sure the door is clear of obstruction.
Ensure your hands are away from any moving parts before activating the door.

Setting the Right or Left Hand Operation:

Refer to the diagrams on the right for guidance.
Ensure the door is positioned halfway and the opener is
engaged (out of manual mode).
Turn the opener Power ON, the courtesy light will turn ON.

1. Press the “P” button for 5 seconds until LED 3 will flash,

as well as LED 2 or LED 1 will flash. For Right Hand
setting LED 2 will flash, and for Left Hand setting LED 1
will flash.

2. To change to the opposite setting, simply press the “S”

button, and the opposite LED will flash.

3. When the correct hand setting is selected, Press and

Release the “P” program button to accept this
setting. (continue).

Setting the Door Limits:
4. Press and hold the “UP” button until the door

reaches the desired OPEN position (You can toggle
between the “UP” and “DN” buttons to move the door to
the correct position. Make sure there is enough room
for your vehicle to pass under).

5. Press and release the “P” program button to

accept this setting.

6. Press and hold the “DN” button until the door

reaches the desired CLOSED position (You can
toggle between the UP and DN buttons to move the
door to the correct position).

7. Press and release the “P” program button to

accept this setting. (LED 2 should flash to indicate
you are now in Force Learn mode) (continue).

Setting the Force Automatically:
8. Press and release the “UP” button. The door will travel to

the OPEN position with LED 2 flashing.

9. Press and release the “DN” button. The door will travel to

the CLOSED position with LED 1 flashing. When fully
closed, LED 1 will stop flashing and the courtesy light will
change to full power.

This process is now complete

Setting the Force manually: (Only perform if Limits are
already set)
• Start with the door fully CLOSED.
• Press the “S” button twice to enter into force learn mode.

The courtesy light will go to half strength, and LED 2 will
flash quickly.

• Press and release the “UP” button. The door will travel to

the OPEN position, then LED 1 will flash quickly.

• Press and release the “DN” button. The door will travel to

the CLOSED position, then LED 1 will stop and the
courtesy light will change to full power.

This process is now complete.

1. Program

Start

2. Left/Right

Setting

3. Accept

Setting