DSC WS4916 Serie Notice D'installation Et D'utilisation

WS4916 Series Wireless Smoke Detector
Installation and Operating Instructions
Read this instruction sheet thoroughly before installation and use of the WS4916 Wireless Smoke Detector
Introduction
The WS4916 is a wireless photoelectric smoke detector with a fixed
temperature and rate of rise heat detector, and an internal piezoelec-
tric alarm. Four versions are available: US version (UL), Canadian ver-
sion (ULC), International version (EU) and Australian version (AUS).
NOTE: Heat detection based on rate of rise has not been investi-
gated by UL/ULC.
NOTE: Australian version does not include the heat detector.
Piezo Sounder
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 opera-
tion the LED will flash every 50 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) or continuous beeps (ULC).
The smoke detector has a preset warning threshold at 75% of the
alarm threshold. If the signal level stays above this threshold, but
below the alarm threshold, for more than 120 seconds, the detector
will go into the 'warning' state. If the signal level falls below the early
warning 'restore' threshold, the detector will restore to its normal
state automatically. If the signal level rises above the alarm threshold,
the detector will go into alarm. The LED will flash and the sounder will
chirp every 50 seconds when in the warning state.
NOTE: This feature is intended to provide a warning if the environ-
ment is persistently close to the alarm threshold and provide more
time to investigate and either escape or correct the situation.
Smoke - Drift Compensation
The detector automatically compensates for long-term environmen-
tally induced changes to maintain a constant smoke sensitivity. When
the drift compensation has reached its high or low limit of adjust-
ment, the detector will go into the trouble state.
Heat Alarm
The heat detector will go into alarm when the heat signal level
exceeds the heat alarm threshold (135ºF/57ºC); and will automatically
restore when the heat signal level falls below the heat alarm threshold
(restore). The detector will also go into heat alarm if there is a rapid
increase in the temperature over a short period of time. During an
alarm the LED will flash 1/second and the sounder will sound the
evacuation temporal pattern (UL, EU) or continuous beeps (ULC).
Tamper
The removal of the detector from the mounting plate initiates a 'tam-
per' transmission. The tamper condition is restored after the detector
is mounted on the plate.
29 03 46 1 7R0 09
LED/Test Button
Alignment Marks
Wireless Transmissions
A supervisory message is transmitted at 64 minute intervals (12 min-
utes in EU model) to the control panel. If the signal is not received the
control panel determines that the detector is missing.
The detector transmits the following:
• Alarm / Alarm Restore - (heat or smoke alarm). Transmitted at
time of occurrence.
• Tamper / Tamper Restore - (tamper switch activated) 10 second
maximum delay on restore before transmission.
• Low Battery - (battery voltage falls below threshold). The batteries
are tested & transmitted at the time of a supervisory or other trans-
missions.
• Trouble - (detector fault or sensor compensation limit reached).
Troubles are transmitted at the time of occurrence (one trouble per
supervisory interval).
Batteries
The WS4916 is powered by two, 3V
Do NOT use batteries other than those listed.
The low battery threshold is set so the batteries will provide not less
than 14 days of operation and at that point the detector will send a
'low battery' signal. If the battery is still low 7 days after falling
through the low battery threshold, the horn will 'chirp' once every 48
seconds until battery failure. During the first 7 days after low battery
detection, (non-chirp period), if the detector is tested or goes into
alarm, the horn will 'chirp' once the test or alarm is restored and
remain 'chirping' until battery failure.
Replacement batteries can be purchased from the distributor, the
installation company, hardware stores or supermarkets etc.
Installation Instructions
Installation
The WS4916 Series wireless smoke detector shall be installed and
used within an environment that provides the pollution degree max 2
and overvoltages category II
indoor only. The equipment is designed to be installed by SERVICE
PERSONS only; (SERVICE PERSON is defined as a person having the
appropriate technical training and experience necessary to be aware
of hazards to which that person may be exposed in performing a task
and of measures to minimize the risks to that person or other per-
sons.)
1. Smoke Detector Placement
On smooth ceilings, detectors may be spaced 9.1m (30 feet) apart as
a guide. Other spacing may be required depending on ceiling height,
air movement, the presence of joists, uninsulated ceilings, etc. Con-
sult National Fire Alarm Code NFPA 72 Chapter 11, CAN/ULC-S553-
02 or other appropriate national standards for installation recommen-
dations.
• Do NOT locate smoke detectors at the top of peaked or gabled ceil-
ings; the dead air space in these locations may prevent the unit from
detecting smoke. Avoid areas with turbulent air flow, such as near
doors, fans or windows. Rapid air movement around the detector
may prevent smoke from entering the unit.
• Do NOT locate detectors in areas of high humidity.
• Do NOT locate detectors in areas where the temperature rises
above 38ºC (100ºF) or falls below 5ºC (41ºF).
Install Smoke detectors in accordance with NFPA 72, Chapter 11.
"Smoke detectors shall be installed outside of each sleeping area in
the immediate vicinity of the bedrooms and on each additional story
of the family living unit, including basements and excluding crawl
spaces and unfinished attics. In new construction, a smoke detector
also shall be installed in each sleeping room."
lithium batteries.
DC
in NON HAZARDOUS LOCATIONS,