Chamberlain 248735S 3/4 HP Garage Door Opener User Manual


 
16
To prevent possible SERIOUS INJURY or DEATH from
electrocution:
Be sure power is NOT connected BEFORE installing
door control.
Connect ONLY to 24 VOLT low voltage wires.
To prevent possible SERIOUS INJURY or DEATH from
a closing garage door:
Install door control within sight of garage door, out
of reach of children at a minimum height of 5 feet
(1.5 m), and away from ALL moving parts of door.
NEVER permit children to operate or play with
door control push buttons or remote control
transmitters.
Activate door ONLY when it can be seen clearly, is
properly adjusted, and there are no obstructions to
door travel.
ALWAYS keep garage door in sight until completely
closed. NEVER permit anyone to cross path of
closing garage door.
Figure 1
Figure 3
HARDWARE SHOWN ACTUAL SIZE
INSTALLATION STEP 6
Install the Door Control
Locate door control within sight of door at a minimum
height of 5 feet (1.5 m) where small children cannot reach,
and away from moving parts of door and door hardware.
The installation surface must be smooth and fl at. If
installing into drywall (Figure 1), drill 5/32" holes and use
anchors provided. For pre-wired installations (as in new
home construction), it may be mounted to a single gang
box (Figure 2).
NOTE: After installation, a green or amber indicator light
behind the cover will indicate proper connection. If not lit,
the Lock and Light features will not function (reverse wires
to correct).
1. Strip 7/16" (11 mm) of insulation from one end of bell
wire and connect to the two screw terminals on back of
door control by color: white wire to WHT and white/red
wire to the RED (Figure 3).
2. Remove cover by gently prying at the top of the
cover with a small fl at head screwdriver. Fasten with
6ABx1-1/4" self-tapping screws (drywall installation) or
6-32x1" machine screws (into gang box) as follows:
Drill and install bottom screw, allowing 1/8" (3 mm)
to protrude above wall surface.
Position bottom of door control on screw head and
slide down to secure. Adjust screw for snug fi t.
Install top screw with care to avoid cracking plastic
housing. DO NOT overtighten.
Insert bottom tabs and snap on cover.
NOTE: The push bar may stick if the door control is
not mounted on a smooth surface. If a click is not heard
when pressing the push bar, loosen the two mounting
screws or relocate the door control to a smoother
surface.
3. (Standard installation only) Run bell wire up wall and
across ceiling to motor unit. Use insulated staples to
secure wire in several places. Do not pierce wire with a
staple, creating a short or open circuit. If your access
door is near the garage door, you may run this wire
with the Safety Reversing Sensor wires along the top of
the rail.
4. Insert all wires through the opening on top of motor unit
above the terminal block on the side panel (Figure 4).
5. Strip 7/16" (11 mm) of insulation from each set of bell
wires. Connect bell wires to the quick-connect terminals
as follows: white to white and white/red to red; white to
white and white/black to grey (Figure 4).
NOTE: When connecting multiple door controls to the
opener, twist same color wires together. Insert wires into
quick-connect holes: white to white and red/white to red.
6. Use tacks or staples to permanently attach entrapment
warning label to wall near door control, and manual
release/safety reverse test label in a prominent location
on inside of garage door.
NOTE: DO NOT connect the power and operate the opener at
this time. The trolley will travel to the full open position but
will not return to the close position until the sensor beam
is connected and properly aligned. See Safety Reversing
Sensor Instructions beginning on page 19.
Figure 2
Figure 4
Drywall Anchors
Insulated
Staples
Screw 6ABx1-1/4"
(std installation)
Screw 6-32x1"
(pre-wired)
To release or
insert wire,
push in tab with
screwdriver tip
Door Control
Connections
Red
Grey
White
Strip wire 7/16" (11 mm)
Bottom Mounting Hole
Top Mounting Hole
Bell Wire
Terminal Screws
To Replace
Insert Bottom Tabs First
To Replace Insert
Bottom Tabs First
24 Volt
Bell Wire
STANDARD
INSTALLATION
MULTI-FUNCTION DOOR CONTROL
PRE-WIRED
INSTALLATION