Figure 3: Mounting the Detector
Tamper Protection
The WS4933 includes a tamper resistant feature that prevents removal from the mount-
ing bracket without the use of a tool. To engage the tamper resistant feature, cut the
small breakaway tab (marked E in Figure 3) located on the mounting bracket and then
install the detector. To remove the detector from the mounting bracket once it has been
made tamper resistant, insert an appropriate tool into the tamper release opening loc-
ated on the detector housing (marked B in Figure 1). Press and hold while sim-
ultaneously turning the detector counterclockwise.
Owner's Instructions
Testing the CO Detector
NOTE: Performing a CO detector system test will generate an alarm trans-
mission. Notify the central station before testing.
Perform a CO detector system test by pressing the Test/Hush button for a minimum of
6 seconds, the red LED flashes and the sounder emits a temporal 4 pattern.
Perform a CO detector local test by pressing the Test/Hush button for a minimum of 2
seconds, the sounder will emit 2 short beeps.
Maintenance
Test the detector weekly to ensure proper operation of the detector. When low battery
is indicated (see Table 1 and Specifications) immediately replace the battery. Once a
month, use a vacuum cleaner to keep the air vents free of dust.
Audible and Visual Indications
The tri-colored LED (green, yellow, red) and a sounder on the detector provide local
visual and audible indication of the detector’s status as listed in Table 1.
NOTE: The sounder and LED are not synchronized.
Table 1: Detector Status and Indication
Status LEDs Sounder
Radio
Signalling
Normal
Green flash every 12
seconds
Off
Normal
(none)
Alarm/Test
Red flash every 12
seconds
ANSI S3.41 temporal 4 (press
button to hush for 5 minutes)
Alarm
Detector
Trouble
Yellow flash every 6
seconds
One 100ms chirp every 45
seconds
Fault
Low Battery
Yellow flash every
12 seconds
One 100ms chirp every 45
seconds (press button to hush for
12 hours)
Low
battery
Detector End
of Life
Yellow flash every
23 seconds
One 100ms chirp every 45
seconds
Fault
Power up
Green, yellow, red
flash sequence every
12 seconds
One 100ms chirp at end of
power-up sequence
None
Tamper
Green, yellow, red
flash sequence every
12 seconds
Off Tamper
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