Chamberlain Merlin Professional MR1000 Installation And Operating Instructions Manual page 10

14
SETTING THE FORCE
The force, as measured on the closing edge of the door,
should not exceed 400N (40kgf). If the closing force is
measured to more than 400N, the Protector System
must be installed (refer section 17). The force setting
regulates the amount of power required to open and
close the door.
This procedure requires the door to be engaged (see
section 8) and run through one full cycle of
operation.
Step 1: Start with the door in the fully open position and
the green control panel cover should be removed (see fig
1 section 11). Press the red learn button twice on the
control panel to enter into the force learn mode. The
amber LED marked open on the control panel will flash
quickly.
Step 2: Press the green operate button on the control
panel. The door will travel to the DOWN limit. Press the
operate button again, the door will travel to the UP limit.
The amber LED marked open on the control panel will
stop flashing when the force has been learned.
TESTING THE SAFETY REVERSE SYSTEM
15
The safety reverse system test is important. The
garage door must reverse on contact with a
40mm obstacle laid flat on the floor. Failure to
properly adjust the opener may result in serious
personal injury from a closing garage door.
Place a 40mm obstacle on the floor. Operate the door in
the down direction. The door must reverse upon contact
with the obstruction. If the door stops on the obstruction,
remove obstruction and repeat limit and force setting
(refer sections 13 and 14).
Repeat test of the safety reverse system.
FIXING WARNING LABELS
16
Once you have completed your installation and
successfully carried out the safety reverse system test
outlined above. Install the warning labels provided with
your opener.
Ensure the risk of entrapment label is installed adjacent
to the release handle at height of less than 1.8m from the
floor.
The WARNING label must be installed in a prominent
place near any fixed control.
Any fixed wall control or wireless door control must be
mounted at a height of no less than 1.5m out of the
reach of children.
Ensure the manual release instruction card is attached to
the rope as detailed in section 7.
Read the safety instructions (page 1) for further details
concerning safety.
Setting the force
operate
TM
learn
x2
close
open
operate
learn
open
Release handle should
be less than 1.8m
above the ground
9
Press learn
button twice
LED will start flashing
Press OPERATE
button (door will close)
Press OPERATE
button to open the
door
LED will turn off
40mm
40mm Test obstacle
Wireless wall buttons, or
wall controls.
No less than 1.5m from
ground
Ground level