Chamberlain 3885C - Manuel (Page 13)

13
To release wire, push in tab
with screwdriver tip Door Control
Connections
7/16" (11 mm)
Strip wire 7/16" (11 mm)
Red Grey White
INSTALLATION STEP 6
Install the Control Console
Locate control console within sight of door, at a
minimum height of 5' (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).
CAUTION: Continuous exposure of the control
console to temperatures below -22° F (-30° C) may
damage the LCD screen.
NOTE: The functional temperature range of the
control console is between -20° C (-4° F) and 50° C
(122° F). Scroll speed of display is slower at lower
temperatures although the control console remains
fully functional.
SPECIAL NOTE: Only one 398LM can be connected
to each garage door opener. If additional wall
controls are desired to operate the same garage door
opener, it is recommended to use model 378LM
wireless wall control as the secondary control
console.
1. Strip 7/16" (11 mm) of insulation from one end of
bell wire and connect to the two screw terminals
on back of control console by color: white wire to
the white (2) and white/red wire to the red (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 control console 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. (For standard installations 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.
4. Strip 7/16" (11 mm) of insulation from end of bell
wire. Connect bell wire to the quick-connect
terminals on the motor unit: white to white and
white/red to red (Figure 3).
NOTE: If you have any trouble with the operation of
the buttons, loosen the top mounting screw.
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 16.
Drywall Anchors
Insulated
Staples Screw 6ABx1-1/4"
(std installation)
Screw 6-32x1"
(pre-wired)
HARDWARE SHOWN ACTUAL SIZE
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.
WARNING
CAUTION WARNING
WARNING
To Replace
Insert Top
Tabs First
STANDARD WALL MOUNT
LOCK
LIGHT
Push Bar Cover
Detector
Switch
ON
OFF
Figure 1
24 Volt Bell Wire
PRE-WIRED INSTALLATION
To Replace
Insert Top
Tabs First
Push Bar
Cover
LOCK LIGHT
Detector
Switch
ON
OFF
Bottom
Mounting
Hole
Top
Mounting
Hole
Door
Control
Terminal
Screws
(BACK VIEW)
W
2
R
1
2-Conductor
Bell Wire
1 3 9 7 5 1 3 9 7 5
Figure 3
Figure 2