Install The Protector System (Ir Beams) - Chamberlain Merlin Whisper Drive MT3850EVO Installation And Operating Instructions Manual

Whisper drive sectional garage door opener
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INSTALLATION STEP 8
Install 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).
Figures 1, 2 and 3 show recommended assembly of
bracket(s) and "C" wrap based on the wall installation of
the sensors on each side of the door shown above, or on
the door tracks themselves. Figure 4 shows variations
which may fit your installation requirements better. Make
sure the wraps and brackets are aligned so the
sensors will face each other across the door.
• Connect each assembly to a slotted bracket, using the
hardware shown. Note alignment of brackets for left
and right sides of the door. Finger tighten the lock
nuts.
• Use bracket mounting holes as a template to locate and
drill two (4.8 mm) diameter pilot holes on both sides of
the door so that the beam mounting height is no greater
than 100 mm above the floor.
• Attach bracket assemblies with carriage bolts as shown.
• Adjust right and left side bracket assemblies to the same
distance out from mounting surface. Make sure all door
hardware obstructions are cleared. Tighten the lock
nuts.
• Centre each sensor unit in a "C" wrap with lenses
pointing toward each other across the door.
• Secure sensors with the hardware provided. Finger
tighten the wing nut on the receiving eye to allow for final
adjustment. Securely tighten the sending eye wing nut.
• Run wires from both sensors to the opener and connect
the two white only wires to the white terminal and the
black/white wires to the grey terminal on your opener
(refer figure 5).
Figure 5
To release wires
press tab with a
screwdriver or
pen
(optional)
TM
white grey
6mm
To protect small children, install The Protector
System™ no higher than 100 mm above the floor.
Disconnect power to the garage door opener before
installing The Protector System™.
With Square Holes
Lock Nuts
Installing The Protector System
Garage
Wall
Lock Nuts
Installing The Protector System
Garage
Track
Drill
9.5 mm
Holes
Carriage Bolts
Alternate Wall Mount
Garage
Wall
Mounting
Bracket
with Holes
Mounting Bracket
with Square Holes
"C" Wrap
Sensor
Indicator Light
Garage
Floor
15
ALL INSTALLATIONS
Figure 1
Mount Bracket
"C" Wrap
Figure 2
to the Garage Wall
TM
Carriage Bolts
Lag Screws
(with Square Shoulders)
"C" Wrap
Mounting Bracket
with slot
Mounting Bracket
with Square Holes
Figure 3
to Track
TM
Lock Nuts
Garage
wall
Mounting Brackets
with Square Holes
"C" Shaped
Figure 4
Alternate Floor Mount
Garage
Indicator
Wall
Lamp
Sensor
Mounting Bracket
with Square Holes
Mounting Bracket
with Slot
Holder
Garage-
Floor
Screws
Wrap
Attach with
concrete anchors
(not provided)

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