System Sensor i4 Series COSMO-2W, i4 Series COSMO-4W Installation And Maintenance Instructions Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS

i4 Series Combination Carbon

I56-3747-001R

Monoxide(CO)/Photoelectric Smoke Detector
COSMO-2W (2-wire) and COSMO-4W (4-wire)

SPECIFICATIONS COSMO-2W COSMO-4W

Electrical Specifications Physical Spcecificaitons

System Voltage: 12/24 volts DC 12/24 volts DC Operating Temperature Range: 0 - 50° C (32 - 122° F)
Min: 8.5 volts 8.5 volts Operating Humidity Range: 20-95% RH
Max: 35 volts 35 volts Storage Temperature Range: -10 - 70° C (14 - 158° F)
Max Startup Current: 200uA 200uA Diameter: 5.5 inches
Max Standby Current: 50uA 50uA Height: 2.5 inches
Max Alarm Current: 50mA 40mA Weight: 9.2 oz; 261 g
Max Reverse Polarity Current: 20mA 20mA Wire Gauge Acceptance: Min: 22 AWG Max: 14 AWG
Audible Signal (Supplemental*): 85dBA 85dBA 2-Wire Compatibility Zone Identifier: A
Max Start-up Capacitance: .10uF .10uF
*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 i4
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. Cop­ies 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 i4 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 i4
series detectors must be used with the corresponding i4 series Interface Mod­ule to connect to the panel. The i4 interface module is also compatible with i3
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 i4 Zone type

• COSMO-4W designed for 4-wire i4 Zone type

• 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

The i4 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 1 I56-3747-001R

alarm and CO alarm events. The red LED signals smoke events; it blinks dur­ing smoke maintenance events and lights constantly during smoke alarm
events. The blue LED signals CO events; it blinks blue during CO trouble or
CO end-of-life; it blinks rapidly during RealTest®; and lights constant during
CO alarm.

TABLE 1: OPERATION MODES

OPERATION

MODE

Normal (standby) Blink 5 Sec. OFF OFF OFF

Alarm Smoke OFF ON OFF Temp 3

Alarm CO OFF OFF ON Temp 4

Alarm Smoke & CO OFF ON ON Temp 3

RealTest® Mode OFF OFF Blink 1 Sec. OFF

(After CO is Sprayed) OFF OFF ON Temp 4

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-of­life, 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 in­stalled 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

3825 Ohio Avenue, St. Charles, Illinois 60174

1-800-SENSOR2, FAX: [phone]

www.systemsensor.com

GREEN

LED

RED LED BLUE LED SOUNDER

kitchens, in garages, near furnaces, hot water heaters, or gas space heaters.

WARNING

• In very cold or very hot areas.

• In wet or excessively humid areas, or next to bathrooms with showers.

• In dusty, dirty, or insect-infested areas.

• Near fresh air inlets or returns or excessively drafty areas. Air con­ditioners, heaters, fans, and fresh air intakes and returns can drive
smoke away from the detector.

Note: This unit is UL listed as containing a supplemental sounder and should
not be used as a primary sounder for evacuation.

FIGURE 1: ALARM LOCATION DIAGRAM FOR RESIDENTIAL APPLICATION

BEDROOM

TO
BR

BEDROOM BEDROOM

LIVING
ROOM

KITCHEN

CLOSED
DOOR

GARAGE

S0295-01

BASEMENT

–

CARBON MONOXIDE/SMOKE ALARM
LOCATION FOR MULTI-LEVEL RESIDENCE

MOUNTING

The i4 detector can be ceiling mounted or wall mounted:

1. To a single gang box, 2 in. by 4 in. box, 3½ in. or 4 in. octagonal or 3½
in. or 4 in. round ceiling

2. Direct mount to ceiling or to wall using drywall fasteners

FIGURE 2: MOUNTING OF DETECTOR

S0326-00

WIRING INSTALLATION GUIDELINES

All wiring must be installed in compliance with the NFPA 70 standards, Na­tional Electrical Code, applicable state and local codes.

The screw terminals in the mounting base will accept 14-22 gauge wire. Wire
connections are made by stripping approximately 3/8" to ½" of insulation from

FIGURE 3: COSMO-2W WIRING DIAGRAM

ALL CIRCUITS ARE SUPERVISED
(EXCEPT TRIGGERS) AND MUST

SMOKE

BE POWER LIMITED

AUXPOWER

(resettable)

the end of the feed wire, inserting it into the proper base terminal, and tight­ening the screw to secure the wire in place. Do not put wires more than 2
gauge apart under the same clamping plate.

Remove power from alarm control unit or initiating device circuits before installing detectors.

1. Remove detector from packaging and separate the base from the detector head.

2. Wire the detector base screw terminals.

3. Screw the base of the detector onto an electrical box, or to the surface of
the wall or ceiling using the hardware included in the packaging.

4. Attach the detector head to the base by applying light pressure and rotat­ing clockwise. The detector will lock in place when properly aligned.

5. After all detectors have been installed, apply power to the alarm control
unit. Refer to Table 3 for time to LED stabilization. Once stabilized, the
green LED will blink once every 5 seconds.

6. Test each detector as described in the Testing section.

7. Notify the proper authority that the system is in operation.

CAUTION

NFPA 72 recommends the installation of detectors only after completing construction or
any other dust producing activity

TABLE 2: LED INDICATION DURING POWER UP SEQUENCE

Green LED Red LED Blue LED

No Power OFF OFF OFF

Power on Reset Blink 5 Sec. Blink 5 Sec. Blink 5 Sec.

TABLE 3: POWER UP TIME TO FIRST ALARM / LED STABILIZATION

Power Up Time 45 Seconds

Power up time after

10 second reset

LED Indication time

Status LED indication

stabilization time

15 Seconds

Typical: 45 seconds

Maximum: 55 seconds

Typical: 55 seconds

Maximum: 268 seconds

TESTING

The detector must be tested after installation. The detector has two discrete
test switches, one for smoke testing and one for CO testing. The detector may
also be functionally tested using canned smoke and canned CO.

NOTE: Before testing, notify the proper authorities to avoid any nuisance alarms.
Ensure the proper wiring and power is applied to the detector. After power
up, allow approximately 5 minutes for the detector to stabilize before testing.

SMOKE

ZONE

CO

ZONE

MAINT.

ZONE

BELL

OR

SMOKE

TRIGGER OUT

CO

TRIGGER

OUT

Panel

EOL

Resistor

SS-500-003 2 I56-3747-001R

COSMOD2W

Panel

EOL

Resistors

LOOP STYLE D WIRING

COSMO-2W

3.9k

RESISTOR

(supplied

with module)

S0329-00