Linear DF-72/EC Folheto

DF-72/EC

DESCRIPTION

The DF-72/EC is a high quality, photoelectric smoke detector with a 
built-in supervised digitally-coded radio transmitter. The DF-72/EC 
monitors and then transmits alarms, low battery, and test signals. The 
DF-72/EC sounds a local alarm as soon as smoke is detected. Twenty 
seconds after the local alarm sounds, the DF-72/EC’s transmitter 
will send an alarm signal to the console. The alarm signal will 
be repeated every 20 seconds as long as smoke is still present. 

Coding switches are not required or used in the DF-72/EC. Each transmitter 
is pre-coded at the factory to a unique code. With the DX format, there are 
more than one million codes possible.

The smoke detector and transmitter are powered by two 9-volt 
batteries. These batteries are supplied with the transmitter and can 
power the unit for up to two years. If the battery voltage drops below 
a preset level, a low battery report is sent to the receiver every hour.

 NOTE: After replacing batteries, press transmitter test button to reset 

“low battery circuit”

STEP 1 

Remove mounting plate. Remove the unit’s mount-

ing plate by turning the plate counterclockwise.

STEP 2 

Identify components. Examine the DF-72/EC to 

identify the component locations.

STEP 3 

Install batteries. Connect the two 9-volt batteries 

and place them into the battery compartments.

STEP 4 

Pick smoke detector location. Referring to the 

NFPA standard on the back of this sheet, select a good loca-
tion to mount the DF-72/EC. Mounting the DF-72/EC on foil-
backed wallpaper or on a metal single-gang electrical box is 
not recommended because the radio range will be reduced.

STEP 5 

Install mounting plate. Use the two screws and 

anchors provided to attach the mounting plate to the wall or 
ceiling. Alternately, the mounting plate can be attached to a 
plastic single-gang electrical outlet box. For the best radio 
range, observe the “best signal” label on the bottom of the 
unit.

STEP 6

  Program into receiver. Follow the DF-16/EC 

console’s instructions to set it in a program or learn mode. 
Press the transmitter test button (not the smoke detector’s test 
button) to send a test signal. The transmit LED should light. 
Verify that the signal was received and that the transmitter was 
properly entered into the console’s memory.

INSTR,INSTL,DF-72/EC - LINEAR P/N:

 211048 C - INK:

 BLA

CK - MA

TERIAL:

 20 LB

. MEAD BOND - SIZE:

 11.000”

 X 8.500”

 - SCALE:

 1-1 - S

IDE 1 of 2

BY

TWIST MOUNTING
PLATE TO
UNLOCK

REMOVE 
MOUNTING
PLATE

BATTERY
COMPARTMENTS

TRANSMITTER
BOARD

TRANSMIT LED

TRANSMITTER
TEST BUTTON

CONNECT AND
INSTALL TWO
9-VOLT ALKALINE
BATTERIES

DINING

KITCHEN

BEDROOM

BEDROOM

BEDROOM

LIVING

ROOM

SMOKE

DETECTOR

PLASTIC
SINGLE-GANG
ELECTRICAL
BOX

SCREW
ANCHORS
FOR WALLBOARD

OR

ENTER YOUR

SECRET CODE

PRESS
LEARN

ENTER AN

UNUSED SENSOR

NUMBER

SEND SIGNAL

FROM SMOKE

DETECTOR

START IN

OFF MODE

HOLD OFF BUTTON FOR 3 SECONDS 
WHEN  FINISHED TO EXIT LEARN MODE

PRESS AND RELEASE TRANSMITTER 
TEST BUTTON  TO SEND A TEST SIGNAL

RED TEST

LIGHT

LEARN BUTTON