INSTALLATION ANd mAINTENANCE INSTrUCTIONS
i
4
Series Combination Carbon
monoxide(CO)/photoelectric Smoke detector
COSmO-2W (2-wire) and COSmO-4W (4-wire)
SpECIFICATIONS
Electrical Specifications
System Voltage:
Min:
Max:
Max Startup Current:
Max Standby Current:
Max Alarm Current:
Max Reverse Polarity Current:
Audible Signal (Supplemental*):
Max Start-up Capacitance:
*NFPA requires a UL listed sounder on the NAC circuit
Notice: This manual shall be left with the owner/user of this equipment.
bEFOrE INSTALLATION
Please read this manual thoroughly along with manual I56-3871 for the i
series interface module and the Application Guides for System Sensor Smoke
(A05-1003) and CO Detectors (A05-1099), which provide detailed information
on detector spacing, placement, zoning, wiring, and special applications. Cop-
ies of these manuals are available at systemsensor.com.
IMPORTANT: This detector must be tested and maintained regularly following
NFPA 72/NFPA 720 requirements. At a minimum, cleaning and
testing should be performed annually.
GENErAL dESCrIpTION
The i
4
series is a plug-in, system-connected, combination carbon monoxide/
smoke detector. It is available in either a 2-wire or 4-wire configuration. The i
series detectors must be used with the corresponding i
ule to connect to the panel. The i
series smoke detector model 2WTA-B or 4WTA-B.
FEATUrES
Smoke Features
• Photoelectric smoke sensor
• Drift compensation and noise rejection algorithms
• Red smoke LED indicator
• Smoke test switch
CO Features
• Field replaceable, electrochemical CO sensor
• RealTest® functional test capable
• Blue CO LED indicator
• Sensor end-of-life notification
Audible Annunciation
• Local integral sounder
• Polarity reversal
Installation and Maintenance
• Stop-Drop-N-Lock plug-in base
• SEMS wiring terminals
• COSMO-2W designed for 2-wire i
• COSMO-4W designed for 4-wire i
• SENS-RDR sensitivity reader compatible with extended range
• Removable cover for cleaning
• Replaceable screen
Other Features
• Green supervisory LED
• Listed to UL standards 268 and 2075
VISIbLE ANNUNCIATON
4
The i
series detector has three visible LED's; Green, Red and Blue. The green
LED is a supervisory LED; it blinks during power on, reset, and during normal
operation. It is extinguished during smoke maintenance, CO trouble, smoke
SS-500-003
COSmO-2W
COSmO-4W
12/24 volts DC
12/24 volts DC
8.5 volts
8.5 volts
35 volts
35 volts
200uA
200uA
50uA
50uA
50mA
40mA
20mA
20mA
85dBA
85dBA
.10uF
.10uF
4
series Interface Mod-
4
interface module is also compatible with i
4
Zone type
4
Zone type
Physical Spcecificaitons
Operating Temperature Range:
Operating Humidity Range:
Storage Temperature Range:
Diameter:
Height:
Weight:
Wire Gauge Acceptance:
2-Wire Compatibility Zone Identifier:
alarm and CO alarm events. The red LED signals smoke events; it blinks dur-
ing smoke maintenance events and lights constantly during smoke alarm
events. The blue LED signals CO events; it blinks blue during CO trouble or
4
CO end-of-life; it blinks rapidly during RealTest®; and lights constant during
CO alarm.
TAbLE 1: OpErATION mOdES
OpErATION
GrEEN
mOdE
LEd
Normal (standby)
Blink 5 Sec.
Alarm Smoke
OFF
Alarm CO
OFF
4
Alarm Smoke & CO
OFF
RealTest® Mode
OFF
3
(After CO is Sprayed)
OFF
Trouble feature: When the sensor (supervision) is in a trouble condition
(such as a detector that is dirty), the detector will send a trouble signal to the
module then to the FACP. Depending on the issue, the detector must then be
serviced or replaced.
CO sensor end-of-life timer feature: When the CO sensor has passed end-of-
life, a trouble signal will be sent to the module then to the FACP. This indicates
that the CO sensor inside the detector must be replaced. If unresolved for 30
days, the detector will chirp intermittently. The typical life of the CO sensor
is six years from the date of manufacture; it is recommended to periodically
check the "Replace by" sticker located on the replaceable CO cell.
INSTALLATION GUIdELINES
Ceiling: Detector should be at least 12 inches from any wall.
Wall: Detector should be no closer than 6 inches from ceiling.
• Do not install outdoors or in any environment that does not comply with
the detector's environmental specifications
• Install in accordance with NFPA 72 and 720 standards. NFPA 72 and
720 define standards for both commercial and residential installation of
smoke and CO detectors. State and local laws involving CO detection
should also be considered.
• If the installation can be interpreted as residential, consult the section
of NFPA 720 that outlines residential applications. Chapter 9.4.1.1, for
example, states that carbon monoxide alarms or detectors shall be in-
stalled as follows:
• Outside each separate dwelling unit sleeping area in the immediate
vicinity of the bedroom
• On every level of a dwelling unit, including basements
• Consult NFPA 72, the local Authority Having Jurisdiction (AHJ), and/
or applicable codes for specific information regarding the spacing and
placement of smoke detectors.
• Do not install detectors in the following areas:
• In or near areas where particles of combustion are normally present such as
1
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6583
www.systemsensor.com
0 - 50° C (32 - 122° F)
20-95% RH
-10 - 70° C (14 - 158° F)
5.5 inches
2.5 inches
9.2 oz; 261 g
Min: 22 AWG Max: 14 AWG
A
rEd LEd
bLUE LEd
OFF
OFF
ON
OFF
OFF
ON
ON
ON
OFF
Blink 1 Sec.
OFF
ON
I56-3747-001R
SOUNdEr
OFF
Temp 3
Temp 4
Temp 3
OFF
Temp 4
Need help?
Do you have a question about the i4 Series COSMO-2W and is the answer not in the manual?
Questions and answers