19
INSTALL THE PROTECTOR SYSTEM
TM
(OPTIONAL)
T
o prevent entrapment, install The Protector
System™ no higher than 100 mm above the floor.
Disconnect power to the garage door opener
before installing The Protector System™.
NOTE: This accessory must be used for all installations
where the closing force as measured on the bottom of the
door is over 400 N (40 kgf).
S
PECIAL NOTE: Merlin strongly recommends that The
Protector System
TM
be installed on all garage door openers.
IR BEAMS:
By installing IR Beams, an open door is prevented
from closing if a person or object is located in the beam area. If
the door is already closing, it will return to the open position. A
closed door is not prevented from opening.
If the Protector System
TM
is installed and needs to be removed,
the opener will need to be reprogrammed (refer toDisabling the
Protector System, Page 20).
Assembly Process:
The IR Beams are supplied preassembled, complete with two
sensors, wiring and wall brackets.
(fig1 & fig2)
Install the mounting brackets and sensors to either side of the
inside of the garage door, and at a height of no greater than 100
mm off the garage floor.
The brackets are designed to be used for Wall or Floor fixing, with
a variety of hole combinations to achieve the desired results.
Drill the required holes and install the brackets with wall plugs and
screws provided. Ensure they do not obstruct the door
movement.
Wiring Process:
Align the Sensors to face each other and tighten if necessary. The
wiring should exit from the bottom of the housing to maintain the
correct IP rating and continued operation.
One sensor is a Sending Eye , the other is a Receiving Eye. Try
to avoid positioning these in direct sunlight as this may interfere
with the operation of the beams.
Run both sets of wire back to the power head CONTROL PANEL.
Ensure the wire is well supported and does not interfere or get
damaged by movement of the door panels or spring hardware.
Remove Power from the Unit:
At the Power head end, cut the wires to the correct length and
strip each back around 10 mm.
Twist both
White
wires together and install into “quick release”
terminal 2 (white)
(fig 3)
Twist both
Black/White
wires together and install into “quick
release” Terminal 3 (Grey)
(fig 3)
(The sensors are a 2 wired system connected in a parallel
configuration).
Reinstall Power to the Unit:
When aligned correctly the Red LED on each sensor will remain
“ON constantly”.
If incorrectly aligned both LEDs will
“flash”
.
Correct the alignment if necessary.
The opener must now be “Enabled”, proceed to “Enabling the
Protector System”.
L
L
A
W
C
I
ST
A
L
P
G
U
L
P
LL
A
W
W
E
R
C
S
L
L
A
W
T
E
K
C
A
R
B
E
G
N
A
L
F
M6
T
U
N
H
C
A
O
C
M6
W
E
R
C
S
R
I
74
7
M
A
E
B
2 CORE
E
L
B
A
C
RE
I
W
white grey
To release wires
press tab with a
screwdriver or
pen
6mm
Figure 1
Figure 2
Figure 3
Figure 5
Summary of Contents for MT3850EVO
Page 2: ...0...
