DSC WS4916 Series Installation And Operation Instructions Manual
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 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: Australian version does not include the heat detector.
LED/Test Button
Piezo Siren
'*
Alignment Marks
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 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 environment 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 environmentally induced changes to maintain a constant smoke sensitivity.
When the drift compensation has reached its high or low limit of
adjustment, 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
“tamper” transmission. The tamper condition is restored after the
detector is mounted on the plate.
Wireless Transmissions
A supervisory message is transmitted at 64 minute intervals (12
minutes 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 bat-
teries are tested & transmitted at the time of a supervisory or
other transmissions.
• 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, 3VDC lithium batteries.
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 in NON HAZARDOUS LOCATIONS,
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
persons.)
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. Consult National Fire Alarm Code NFPA 72 Chapter 11, CAN/
ULC-S553-02 or other appropriate national standards for installation recommendations.
•DoNOT locate smoke detectors at the top of peaked or gabled
ceilings; 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.
•DoNOT locate detectors in areas of high humidity.
•DoNOT 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.”
2. Mount Smoke Detector Backplate
Secure backplate to
the mounting surface using the screws
Locking
Ta b
provided.
CAUTION: The dust
cover protects the
unit when not in
service. Remove the
dust cover before
use.
Mounting Holes
3. Install Batteries
If batteries are not
installed, install batteries in the
sequence indicated.
Use only approved
Panasonic CR123A,
Insert
Last
3V CR123A
3V CR123A
Insert
First
Sanyo CR123A or
Duracell DL123A
batteries. If batteries
are installed, remove
the “Pull” tab to
activate.
CAUTION: Without
batteries the unit
cannot be
mounted onto the
base plate properly! (WS4916 Australian version
only).
4. Mounting
• Detector Installation
Position the detector on
to the base plate using
the detector and base
plate alignment marks.
Mounting
Surface
Alignment
Marks
Detector
PULL
DOWN
Tab
Backplate
Tabs
Press the detector gently
in place while rotating the
CLOSE
detector clockwise until
the detector snaps into
place. Remove the side
tab from the locking tab
to lock in place (optional).
• Removal
OPEN
Depress tab with a small slotted screwdriver. Rotate detector
counter-clockwise until the alignment marks line up. Remove
detector.
Installer Compensation Reset
Cleaning or replacement of the smoke sensor chamber changes the
background signal/noise of the detector; this requires the drift compensation be reset. Compensation trouble is one of the faults indicated when the LED indicator is OFF while the sounder is chirping.
1. Remove batteries, then short the detector battery contacts for
5 seconds to power down unit.
2.Replace batteries to power up unit while pressing the test
button.
3.The tamper switch must not be pressed.
4.The LED will flash when 5 seconds has elapsed. Release the
test button within 2 seconds of the LED flash.
5.The LED will flash every 2 seconds for 1 minute. During this
period, the detector must be mounted.
Allow an additional 2 minutes for the detector to make background level checks.
6.Test the detector to verify normal operation.
5. Test Unit
NOTE: The central monitoring station (if used) should be notified
prior to the test being generated. This will prevent a false alarm
and an unnecessary response from the central monitoring station.
Initiate test by pressing the test button for 5 seconds minimum.
Alarm activation is indicated by the flashing LED, the sounder, and
transmission of the alarm signal to the control panel. The detector
restores to normal when the test button is released.
NOTE: Allow a minimum of 20 seconds after power up and ,
after test, alarm or tamper restore activations. Do not use test button when smoke is present.
NOTE: If the detector is in one of the following states when a test
is initiated; it will not enter an alarm state.
• Tamper, (detector not installed on mounting plate)
• Compensation Trouble
• Other internal faults that could prevent a smoke or heat alarm
NOTE: Smoke sensitivity of installed detectors can be measured
without removal or an alarm being generated using the FSD-100
Smoke Detector Test Meter.
To test the unit using the FSD-100, set the test meter up to read
devices as per the instructions supplied. Depress the test button on
the smoke detector for 1 second and release.
NOTE: If the test button is held for 5 seconds or longer, an alarm
will be generated.
Move the test meter over the center of the detector, wait until you
hear the test meter beep, remove the unit and the information can
be immediately reviewed. Please see the instructions supplied with
the FSD-100 Smoke Detector Test Meter for more information.
6. Device Enrollment
The 6-digit serial number located on the back of the smoke detector housing must be enrolled into the alarm control panel with
Installer programming. Refer to the receiver Installation Manual
for details. For placement tests remove detector from backplate for
one second (tamper) then reattach. Wait at least 30 seconds for test
result before activating again.
Owner’s Instructions
Fire Safety In The Home
Most fires occur in the home, and to minimize this danger, it is recommended that a household fire safety audit be conducted and a
family escape plan be developed.
Household Fire Safety Audit
1. Are all electrical appliances and outlets in safe condition?
Check for frayed cords, overloaded lighting circuits, etc. If you
are uncertain about the condition of your electrical appliances
or household service, have a professional evaluation.
2.Are all flammable liquids safely stored in closed containers,
and in a cool and well ventilated area? Cleaning the unit with
flammable liquids should be avoided.
3.Are hazardous materials (i.e., matches) out of the reach of
children?
4.Are furnaces and wood burning appliances properly installed,
clean, and in good working order? If in doubt, have a professional evaluation.
Family Escape Planning
There is often very little time between the detection of a fire and the
time it becomes deadly. Because of this, it is very important that a
family escape plan be developed and rehearsed.
• Every family member should participate in the escape plan.
• Study the possible escape routes from each location within the
house. Since many fires occur at night, special attention should be
given to the escape routes from sleeping quarters.
• It is essential that escape from a bedroom be possible without
opening the interior door. Consider the following when making
your escape plans:
• Ensure that doors and windows that open to the outside are eas-
ily opened. Ensure that they are not painted shut and that the
locking mechanisms operate smoothly.
• If opening or using the exit is too difficult for children, the elderly
or handicapped, plans for their rescue should be developed. This
plan includes making sure that those who are to perform the rescue can promptly hear the fire warning signal.
• If the exit is above the ground level, an approved fire ladder or
rope should be provided, as well as training in its use.
• Exits on the ground level should be kept clear. Be sure to remove
snow from exterior patio doors in the winter and that outdoor
furniture or equipment does not block exits.
• The family should have a predetermined assembly point where
everyone can be accounted for; for example, across the street or
at a neighbor’s house.
• Once everyone is out of the house, call the Fire Department.
• A good plan emphasizes a quick escape. Do not investigate first
or attempt to fight the fire, and do not attempt to rescue belongings or valuables as this takes up time. Once outside, do not reenter the house; wait for the Fire Department.
• Write the plan down and rehearse it frequently so that should
an emergency ever arise, everyone will know what to do.
Revise the plan as conditions change; for example, when
there are more or fewer family members in the home or if
there are changes to the house.
• Make sure your fire warning system is operational by conducting
weekly tests. If you are unsure about system operation, contact
your smoke detector installer or dealer.
• DSC recommends that you contact your local Fire Department
and request further information on home fire safety and escape
planning. If available, have your local fire prevention officer conduct an in-house fire safety inspection.
Testing Your Smoke Detector
Follow the test procedure described here or contact your smoke
detector dealer or installer for testing instructions. DSC
recommends that you test the entire alarm system at least once
a week to verify the operation of all system functions.
Smoke Detector Unit Test
Initiate test by pressing the test button for 5 seconds (min.), the
sounder makes clicking noises during this time. Press the button
until the unit alarm sounds, an alarm should be sent to the control
panel. When the button is released, the alarm should cease. If this
does not occur, ensure batteries are the correct type, in good condition and are installed correctly (see 3. Install Batteries in the
Installation Instructions section).
Upon completing the functional testing of the smoke detector,
check the unit’s sensing chamber to ensure proper operation. To
test the sensing chamber, wave a lit cotton wick or punk stick
around the outside of the unit until a generous amount of smoke
enters the sensing chamber or the unit alarms. If the smoke detector does not function properly, call your smoke detector installer or
dealer for service.
Owner’s Maintenance
The smoke detector is designed to require minimum maintenance.
If the case becomes dusty, vacuum with a small brush attachment.
If the case is greasy, wipe the case gently with a soft cloth slightly
dampened with soapy water.
Never disassemble the smoke detector; there are no user
serviceable parts inside the unit. You may only remove detector
from backplate to replace batteries if not serviced by installer.
When replacing the batteries, follow the instructions specified
within the Installation Instructions, Item 3 Install Batteries.
CAUTION: This product uses lithium batteries, improper
handling may result in a HEAT, EXPLOSION or FIRE causing
personal injury. DO NOT recharge batteries. Follow the battery
manufacturer’s safety instructions. Dispose of used batteries in
accordance with the regulations in your area.
Never paint the unit. Paint may prevent smoke from entering
the unit. If you are planning renovations or repainting, contact
your installer and ask that the unit be temporarily removed until
work is complete.
If the unit is located in an area where it is exposed to high levels of
dust or insects and causes false alarms, it may require service; contact your smoke detector installer or dealer.
Testing and maintenance procedures shall be in accordance with
CAN/ULC-S552-02.
Specifications
• Diameter (base): 5.8in (147mm)
• Height (including base): 2.077in (528mm)
• Alarm Sensitivity (threshold) UL: 3.0±0.8%/ft obscuration, ULC:
2.0±0.5 %/ft obscuration
• Alarm Sensitivity (threshold) EU: complies with EN54-7
• Warning threshold: 75% of alarm threshold for 120 seconds
• Heat Alarm: 135ºF (57ºC)
• Supervisory Transmission Frequency UL, ULC: 64 min. intervals
• Supervisory Transmission Frequency EU: 12 minute intervals
• Sounder Alarm Pattern UL, EU: evacuation temporal pattern
• Sounder Alarm Pattern ULC: continuous beeps
• Operating Temperature with Heat Detector:
32º-100ºF (0º-37.8ºC)
• Operating Temperature for Smoke Alarm (Australian version):
41º-113ºF (5º-45ºC)
• Humidity: 5%-95% RH, non-condensing
• Batteries (2) CR123A
• Low Battery Detection Low battery 14 days remaining
• Approved Batteries: Panasonic CR123A, Sanyo CR123A and
Duracell DL123A
Alarm Indications
Condition LED Sounder Transmission
Normal Flash 1/50s OFF Supervisory
Alarm Smoke Flash 1/1s
Alarm Heat Flash 1/1s
Early Warning
Smoke
Compensation
Trouble High
Compensation
Trouble Low
Sensor/
Internal Fault
Low Battery
0 - 7 days
Low Battery
0 - 7 days & Test or
Alarm
Low Battery After
7 days
Tamper Flash 1/50s OFF Tamper
Flash 1/50s CHIRP None
OFF CHIRP Trouble
OFF CHIRP Trouble
OFF CHIRP Trouble
Flash 1/50s
Flash 1/50s
Flash 1/50s
This product has been approved by the California State Fire
Marshal (CSFM) pursuant to section 13144.1 of the California
Health and Safety Code. See CSFM Listing No. 7272-1273:125
for allowable values and/or conditions for use concerning material presented in this document. The approval is subject to reexamination, revision and possible cancellation.
Temporal or
Steady
Temporal or
Steady
OFF Low Battery
CHIRP
CHIRP
Low Battery
Low Battery
Alarm
Alarm
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