DSC WS4936 Installation And Operating Instructions Manual

WS4936/WS4936EU (433MHz)/WS8936 (868MHz) Series
Wireless Smoke Detector
Installation and Operating Instructions
Read this instruction sheet thoroughly before installation and use of the WS4936 / WS4936EU/ WS8916
Introduction
The WS4936 / WS4936EU / WS8936 is a wireless pho-
toelectric smoke detector with a fixed temperature and rate of
rise heat detector, and an internal piezoelectric alarm. Four
versions are available: US version (UL), Canadian version
(ULC), International version (EU), and Australian version
(AUS).
NOTE: Heat detection based on rate of rise has not been
investigated by UL/ULC.
NOTE: AU and EU versions do not include a fixed tem-
perature heat alarm, but DO include a rate of rise
alarm.
HUSH/TEST BUTTON
Operation
Approximately every 7 to 8 seconds the unit tests for a smoke
or heat alarm condition. During this sequence the unit also
performs self diagnostics, and checks for tampers and faults.
During normal operation the green LED will flash every 12
seconds and the sounder will not sound.

Smoke Alarm

The smoke detector will go into alarm when the signal level
exceeds the "alarm" threshold and automatically restore
when the signal level falls below the alarm "restore"
threshold. During an alarm the LED will flash 1/second and
the sounder will sound the evacuation temporal pattern (UL,
EU, ULC).
Alarm Silencing
This smoke alarm is provided with an automatically resettable
alarm silencing feature. When the sensor is in alarm, by press-
ing the Test/Silence/Reset button it will silence the local
annunciation of the alarm and transmit an alarm restoral
event to the control panel. The LED will flash every 8 seconds
(for up to 10 minutes) to indicate the alarm has been
silenced.
29009523R001
The flashing LED will stop when the unit returns to normal
operation. The alarm silence feature has a fixed time setting
that desensitizes the smoke alarm for 8 minutes.
Alarm silencing does not disable the smoke alarm but rather
reduces its smoke sensitivity. Following the silenced period
the smoke alarm restores automatically to its intended oper-
ation. If smoke around the unit is dense enough to suggest a
potentially dangerous situation, it will stay in alarm, or may
return to the alarm state quickly.
Detector Trouble
When the detector has a general fault, the yellow LED blinks
once every four seconds and there is a chirp every 48
seconds. After 12 hours, the panel will display a loss of super-
vision message.
Status LEDs
Green flash every 12
Normal
seconds
Heat Red flash every 1
Alarm second
Heat Red flash every 1
Test second
Smoke Red flash every 1
Alarm second
Smoke Red flash every 1
Test second
Test Red flash every 1
Alarm second
Freeze 3 yellow flashes every
Warning 4 seconds
Detector Yellow flash every 4
Trouble seconds
Low Yellow flash every 12
Battery seconds
Detector Yellow flash every 8
Dirty seconds
Power- Red, yellow, green,
up flash sequence
Red, yellow, green
Tamper flash sequence every
12 seconds
Table 1: Detector and Status Indication
1
Sounder
(do not pulse the sounder
and LED concurrently)
Off
ANSI S3.41 temporal 3
ANSI S3.41 temporal 3
ANSI S3.41 temporal 3
(press button to hush for 5-
10 minutes)
ANSI S3.41 temporal 3
(press button to hush for 5-
10 minutes)
ANSI S3.41 temporal 3
Off
One chirp every 48
seconds
One chirp every 48
seconds (press button to
hush for 12 hours)
One chirp every 48
seconds
One chirp at the end of the
power-up sequence
Off