Chamberlain ELITE 3840 - Manual (Page 16)

16
INSTALLATION STEP 7
Install the Smart Control Panel ®
Locate door control within sight of door, at a minimum height
of 5 feet (1.5 m) where small children cannot reach, away
from moving parts of door and door hardware. If installing
into drywall, drill 5/32" holes and use the anchors provided.
For pre-wired installations (as in new home construction), it
may be mounted to a single gang box (Figure 1).
NOTE: The functional temperature range of the door control
is between -4° F (-20° C) and 122° F (50° C). Scroll speed
of display is slower at lower temperatures although the door
control remains fully functional.
CAUTION: Continuous exposure of the door control to
temperatures below -22° F (-30° C) may damage the LCD
screen.
SPECIAL NOTE: Only one Smart Control Panel
® can be
connected to each garage door opener. If additional door
controls are desired to operate the same garage door
opener, it is recommended to use model 378LM wireless
door control as the secondary door control.
1. Separate the white and red/white wires. 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 the W (2) and white/red
wire to the R (1) (Figure 2).
2. Remove push bar cover by gently prying at the
lower/middle portion of the cover with a small flat-head
screwdriver. Fasten with 6AB x 1-1/4" self-tapping screws
(drywall installation) or 6-32 x 1" machine screws (into
gang box) as follows:
• 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 fit.
• Drill and install top screw with care to avoid cracking
plastic housing. DO NOT overtighten.
• Replace cover by inserting top tabs first and then snap
cover in place.
3. (Standard installation only) Run bell wire up wall and
across ceiling to opener. 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.
See page 13.
4. Separate the white and red/white wires. Strip 7/16"
(11 mm) of insulation from the end of the bell wires.
Twist like colored wires together. Connect the bell wire
from door control and safety reversing sensors to the
quick-connect terminals:
red/white wire to the red terminal, white wires to the white
terminal and white/black wires to grey terminal.
NOTE: If you have any trouble with the operation of the
buttons, loosen the top mounting screw.
5. 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 Step 12 on page 18.
Figure 2
Figure 1
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 3
Drywall Anchors
Insulated
Staples Screw 6ABx1-1/4"
(standard installation)
Screw 6-32x1"
(pre-wired)
HARDWARE SHOWN ACTUAL SIZE
Strip wire 7/16"
7/16" (11 mm)
Red Grey White
Quick-Connect
Terminals
Antenna
To release or insert wire, push in tab with screwdriver tip
Door Control
Connections
Safety Reversing
Sensors Connections
Push Bar
Light
Button
Lock
Button
Door
Control
Terminal
Screws
(BACK VIEW)
W
2
R
1
2-Conductor
Bell Wire
LOCK
LOCK
Battery
Status LED
PRE-WIRED INSTALLATION REMOVE & REPLACE COVER
To Replace Insert
Top Tabs First
Push Bar Cover
24 Volt Bell Wire
LOCK
LIGHT
LOCK
LIGHT