Control (E128M); Test The Safety Reversal System - Merlin Whisper Drive MT3850EVO Installation And Operating Instructions Manual

ADJUSTMENT STEP 2

Test the Safety Reversal System

TEST
• With the door fully open, place a 40 mm high object laid
flat on the floor, centred under the garage door.
• Operate the door in the down direction. The door must
reverse on striking the obstacle.
ADJUST
• If the door stops on the obstacle, it is not travelling far
enough in the down direction. Complete Adjustment
Step 1, Programming the Limits and Forces to increase
travel distance in the down direction.
NOTE: Make sure the limit adjustments do not
force the door arm beyond a vertical position.
Refer Figure 3, page 14.
• Repeat the test.
• When the door reverses on the 40 mm high object laid
flat, remove the obstacle and run the opener through 3
or 4 complete travel cycles to test adjustment.
• If the opener continues to fail the Safety Reverse Test,
call for a qualified door technician.
IMPORTANT SAFETY CHECK:
Test the Safety Reverse System once a month and after:
• Each adjustment of door arm length, limits, or force
controls.
• Any repair to or adjustment of the garage door
(including springs and hardware).
• Any repair or changes to the garage floor.
• Any repair or adjustment of the opener.
INSTALLING YOUR WIRELESS E128M WIRELESS WALL BUTTON
Disconnect power to the opener whilst installing this
accessory to prevent accidental activation.
Locate minimum 1.5 m above the floor
To install:
• Carefully pry open the E128M and locate the two screws for
mounting.
• Attach to the wall using the two screws and wall anchors provided
if mounting to a plaster wall. If using a recessed wall box do not
use anchors.
NOTE: Do not overtighten screws.
NOTE: The wall control supplied with your opener should be pre-programmed by the factory.
If adding a new wall control, program into the opener before mounting the unit as detailed in the next section.
• Safety reversal system MUST be tested every month.
• After ANY adjustments are made, the safety reversal system
MUST be tested. Door MUST reverse on contact with 40 mm
obstacle on the floor.
18
1
40 mm
+