17
OPERATION OF YOUR OPENER
Your opener can be activated by any of the following
devices:
• Opener Control Panel: UP & DOWN buttons
• Remote Control Transmitter: hold the button down
until the door starts to move.
• The Outside keyswitch or keyless
entry system (optional accessories).
• The Transmitter or Wireless Wall
Control (E138M)
Hold the push button down until the door starts to move.
When the opener is activated:
• 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.
Obstruction behaviour:
• If an obstruction is encountered while closing, the door
will reverse.
• If an obstruction is encountered while opening, the door
will reverse and 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.
Opening the door manually:
The door can be opened manually by pulling the release
cord down firmly.
To re-engage the door, pull the release cord down firmly.
The opener light will turn on for 3 minutes when the
opener is activated.
MAINTENANCE OF YOUR OPENER
Once a Month:
• Repeat safety reverse test.
Make any necessary adjustments (section 13).
• 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.
SPECIAL NOTE: Chamberlain strongly recommends that the Protector System
TM
be installed on all garage door openers.
CARE OF YOUR OPENER
When properly installed, your opener will operate with
minimal maintenance. The opener does not require
additional 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, section 14.
Follow the instructions carefully and repeat the
safety reverse test after any adjustment.
Transmitter: Additional transmitters can be purchased at
any time. Refer to Accessories. Any new transmitters
must be programmed into the opener.
Transmitter battery: If transmission range decreases,
replace the battery.
SPECIFICATIONS MR550EVO
Input Voltage:
230-240 VAC, 50 Hz, 120 W
Rated Load:
32 Nm
Max.Pull Force:
500 N @ O300 mm
Max. door weight:
100 kg
Max lift under Spring Tension: 15 kg
Max. door area:
15.0 m
2
Standby Power:
<1 Watt
IP Rating:
IP34
Drive:
DC gearmotor permanent
lubrication
Max. Drum Rotations:
5
1/2
Memory Registers:
64
Operating Frequency:
433.30/433.92/434.54 MHz
Operating Temperature:
55
0
C to -25
0
C
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.
