Owner manual
D400-01-01  2  I56-0278-008R
1.  Install Detectors:
  a. Place the detector into the detector base.
  b.  Turn  the detector  clockwise  until the  detector drops 
into place.
  c.  Continue turning detector clockwise to lock it in place.
2. Tamper-proof Feature 
   The  detector  bases  include  a  feature  that,  when  acti-
vated, prevents removal of the detector without the use 
of a tool. See the installation instruction manual of the 
detector base for details in using this feature.
3.  After  all  detectors have been  installed,  apply power to 
the control unit.
4. Test the detector as described under TESTING.
5. Reset the detector at the system control panel.
6. Notify the proper authorities that the system is in operation.
CAUTION
Dust covers can be used to help limit dust entry to the de-
tector, but they are not a substitute for removing the detec-
tor during building construction. Remove any dust covers 
before placing system in service.
CAUTION
Smoke detectors  are  not  to be  used with  detector guards 
unless the combination  has been evaluated and found  
suitable for that purpose.
Testing
Before testing, notify the proper authorities that the smoke 
detector system is  undergoing maintenance and will tem-
porarily be out of service. Disable the zone or system un-
dergoing maintenance to prevent unwanted alarms.
Detectors  must be  tested after  installation and  periodic 
maintenance. The 1451 may be tested as follows:
Before  testing  the  detector,  look  for  the  presence  of  the 
flashing LEDs. If they do not flash, either power has been 
lost  to  the  detector  (check  the  wiring),  or  it  is  defective 
(return for repair).
A.  Test Magnet (System Sensor Model No. M02-04-00)
  1.  Place the magnet against the cover opposite the test 
module socket. (See Figure 1.)
  2.  The  LEDs  on  the  detector  should  latch  on  within 
30 seconds.
  3. Reset the detector at the system control panel.
B.  Test Module (System Sensor Model No. MOD400R)
   The MOD400 or MOD400R is used with a digital or an-
alog  voltmeter  to  check  the  detector  sensitivity  as  de-
scribed in the test module’s manual.
C. Aerosol Generator (Gemini 501)
   Set the generator to represent 4%/ft. to 5%/ft. obscura-
tion as described in the Gemini 501 manual. Using the 
bowl shaped applicator, apply aerosol until unit alarms.
Notify the proper authorities that the system is back on line.
Detectors that fail these tests should be cleaned as described 
under  MAINTENANCE  and  retested.  If  the  detectors  still 
fail these tests they should be returned for repair.
Figure 1. Bottom and side views showing test magnet position:
PAINTED
SURFACE
TEST
MAGNET
TEST
MAGNET
LED
TEST MODULE
SOCKET
LED
S0137-00




