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Install the door control, Installation step 6 – Chamberlain WHISPER DRIVE 248754 User Manual

Page 17

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To prevent possible SERIOUS INJURY or DEATH from
electrocution:
• Disconnect ALL electric and battery power BEFORE
performing ANY service or maintenance.
• 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 controls.

• 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.

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,
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).

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 2 and white/red
wire to the 1 (Figure 2).

2. Remove cover by gently prying at slot in top of the

cover with a small fl at head screwdriver (Figure 3).
Fasten with 6ABx1-1/4" self-tapping screws (drywall
installation) or 6-32x1" 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 fi t.

• Drill and install top screw with care to avoid cracking

plastic housing. DO NOT overtighten.

• Insert top tabs and snap on cover.

3.

(For 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.

4. Strip 7/16" (11 mm) of insulation from end of bell wire.

Connect bell wire to the quick-connect terminals as
follows: white to white and white/red to red (Figure 4).

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 power and operate 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.

HARDWARE SHOWN ACTUAL SIZE

Screw 6ABx1-1/4"
(Standard Installation)

Drywall Anchors

Insulated Staples

Screw 6-32x1" (pre-wired)

Figure 4

Figure 1

Figure 2

Figure 3

Door Control Connections

Strip wire 7/16" (11 mm)

To insert or release
wire, push in tab
with screwdriver tip

Bottom
Mounting
Hole

(BACK VIEW)

24 Volt
Bell Wire

24 Volt
Bell Wire

24 Volt
Bell Wire

Terminal
Screws

Top
Mounting
Hole

Red

White Grey

PRE-WIRED INSTALLATION

To Replace Insert
Top Tabs First

To Replace
Insert Top
Tabs First

Push Bar
Cover

Push Bar
Cover

Detector
Switch

Detector
Switch

ON
OFF

ON
OFF

7/16"

(11mm)