Specifications; Operation Of Your Opener; Care Of Your Opener - Chamberlain Merlin Professional MT230 Installation And Operating Instructions Manual

OPERATION OF YOUR OPENER

Your opener can be activated by any of the following
devices:
• The START/STOP button
Press the button until door starts to move.
• The wall control, outside keylock or keyless
entry system (if you have installed any of these
accessories).
• The transmitter or wireless wall
button (CM128)
Hold the push button down until the door starts to move.
When the opener is activated by transmitter,
START/STOP button or wall control:
• If open, the door will close. If closed, the door will open.
• If closing, the door will stop.
• If opening, the door will stop (allowing space for entry
and exit of pets and for fresh air).
• If the door has been stopped in a partially open or
closed position, it will reverse direction.
• If an obstruction is encountered while closing, the door
will stop, then reverse.
• If an obstruction is encountered while opening, the door
will stop, reverse away from the obstruction then stop.
• The optional Protector System™ uses an invisible beam
which, when broken by an obstruction, causes a closing
door to open and prevents an open door from closing. It
is STRONGLY RECOMMENDED for homeowners with
young children.
Allow a 15 minute cooling period after 4 minutes of
continuous operation of the opener.
Door should be fully closed if possible.
Weak or broken springs could allow an
open door to fall rapidly. Property damage
or serious personal injury could result.
Opening the door manually: (refer section 14)
The door can be opened manually by pulling the release
cord down firmly.
To re-connect the door, push the red clutch lever up to the
top stop position.
The opener light will turn on:
• when the opener is initially plugged in;
• after the power has been briefly interrupted;
• when the opener is activated.
(the light turns off automatically after 2-1/2 minutes.)
SPECIAL NOTE: Chamberlain strongly recommends that the Protector System

CARE OF YOUR OPENER

When properly installed, your opener will operate with
minimal maintenance. The opener does not require addi-
tional lubrication.
Limit and force settings: These settings must be checked
and properly set when the opener is installed. Weather
conditions may cause some minor changes in the door
operation, requiring some re-adjustments, particularly
during the first year of operation. Refer to limit and force
setting in, sections 18 & 19.
Follow the instructions carefully and repeat the safe-
ty reverse test after any adjustment.
transmitter:
Additional transmitters can be purchased at any time.
Refer to accessories. Any new transmitters must be pro-
grammed into the opener.
transmitter battery:
If transmission range decreases, replace the battery.
MAINTENANCE OF YOUR OPENER
Once a month:
• Repeat safety reverse test.
Make any necessary adjustments (sections 18 & 19)
• Manually operate door. If it is unbalanced or binding,
call for professional garage door service.
• Check to be sure door opens and closes fully.
Set limits and/or force if necessary.
SPECIFICATIONS MT230
Input Voltage:
Rated Load:
Max.Pull Force:
Max. Door Mass:
Idle Current:
Drive:
Memory Registers:
Operating Frequency:
Auxillary power output:
be installed on all garage door openers.
TM
22
230-240VAC, 50Hz, 460W
50Nm
700N
130kg (spring balanced)
less than 5mA @ 230VAC
AC gearmotor
64
433.92MHz AM Peak Detect
rolling code.
12VDC 100ma (max)