System Sensor i4 User Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS

I56-3871-001

i4 Series Interface Module
COSMOD2W and COSMOD4W

*For use with COSMO-2W and COSMO-4W detectors

SPECIFICATIONS

Electrical Specifications

Power Supply Voltage: Resettable power; 2-Wire: Min. 8.5 Volts DC (Power limited); Max. 35 Volts DC (Power limited);
4-Wire: Min. 10 Volts DC (Power limited); Max. 35Volts DC (Power limited)
Device Power-up Time: 200 milliseconds
Max. Standby Current: 2-Wire: 62mA; 4-Wire: 52mA (Does not include current draw from attached detectors or EOL relay)
Max. Alarm Current: 2-Wire: 174mA; 4-Wire: 75mA (Does not include reverse polarity current draw from attached detectors)
Nom. Standby Current: 2-Wire: 45mA@12V, 27mA@24V; 4-Wire: 36mA@12V, 21mA@24V
(Does not include current draw from attached detectors or EOL relay)
Alarm Contact Rating: 100 mA @ 36 Volts DC, resistive, 25 ohms
Maintenance Contact Rating: 100 mA @ 36 Volts DC, resistive, 25 ohms
Max. IDC Loop Wiring Resistance: 2-Wire: 50 Ohms; 4-Wire: 300 Ohms
Trigger Inputs: Min. On Voltage: 1.5V; Max. On Voltage=Vin
Aux Power Out: Same Voltage as Input Power (Unregulated, limited to 250mA)
Min. Reset Time: 300 milliseconds
Initial Communication Cycle: 6 minutes
EZ Walk Test Availability: 6 minutes after power up or panel reset

Physical Specifications

Operating Temperature Range: 0 - 50° C (32 - 122° F)
Operating Humidity Range: 5 - 95% RH
Storage Temperature Range: -20 - 70° C (-4 - 158° F)
Height: 6.04 inches
Width: 6.04 inches
Depth: 1.16 inches
Shipping Weight: 0.6 lbs
Wire Gauge Acceptance: Min: 22 AWG; Max: 14 AWG

2-wire Compatibility Requirements

Min. Loop Voltage: 12.9 Volts DC
Max. Loop Voltage: 14.5 Volts DC
Max. Loop Resistance: 50 Ohms
Max. Loop Ripple: 240 mVpp
Max. Loading Capacitance: 0.01 mF
Max. Alarm Current: 46 mA
Max. Reset Voltage: 0.30 Volts DC
Alarm Delay: n/a
Min. Alarm Reset Time: 0.3 seconds
Max. Normal Load Current: 2.4 mA
Zone Type: Standard
EOL Device: 3.9k Ohms (+-5%)
Loop Style: B and D
Compatibility Zone Identifier: A
Detector Zone Identifier: A
Max. Detectors Per Zone: (12) 2-wire i4 series model #COSMO-2W and/or i3 series model #2WTA-B detectors

BEFORE INSTALLATION

This information is included as a quick reference installation guide. Refer to
the control panel installation manual for detailed system information. If the
module will be installed in an existing operational system, inform the operator
and local authority that the system will be temporarily out of service. Discon­nect power to the control panel before installing the module.

Notice: This manual should be left with the owner/user of this equipment.
This product is intended for use in ordinary indoor locations.

GENERAL DESCRIPTION

The i4 series module is designed to interface between compatible i4 series
combination CO/smoke detectors (Model COSMO-2W and COSMO-4W) and
compatible security/fire panels. It can also be used to retrofit compatible i4
series detectors into an existing loop of i3 smoke detector models 2WTA-B or
4WTA-B, without adding wires. The module interprets signals and translates
them into a separate smoke zone and a separate CO zone, each with alarm
and trouble signals. When signaled by the panel, a module will synchronize
connected detector sounders in either Temporal 3 or Temporal 4 pattern. Local
status indication is provided by 4 LED’s and a 3 position DIP switch enables
user configuration.

SS-500-004 1 I56-3871-001

4

The i

COSMOD2W, 2-wire interface module, offers additional functionality

including:

• Ability to query for a “need for maintenance” condition from 2-wire i4
series model COSMO-2W and i3 series model 2WTA-B smoke detectors

• One relay is available to indicate a multitude of maintenance conditions
at the control panel

• All conditions are displayed at the module and at the detector

• EZ Walk test mode allows the installer to easily verify that all detectors
on a loop are operational

• Allows 2-wire smoke detectors to be used on any compatible 4-wire
control panel and provides Style D wiring on the detector loop

FEATURES

• Compatible with System Sensor i4 series combination CO/smoke detectors
and System Sensor i3 Series smoke detectors models 2WTA-B or 4WTA-B.

• Allows up to 12 compatible devices including the i4 series combination
CO/smoke detector to be integrated with a panel

3825 Ohio Avenue, St. Charles, Illinois 60174

1-800-SENSOR2, FAX: [phone]

www.systemsensor.com

• Allows sounder activation of all detectors on loop in either Temporal 3

HOLE FOR MOUNTING

or Temporal 4 pattern

VISIBLE ANNUNCIATON

The i4 series interface module has four visible LED’s: The green LED is a su­pervisory LED; it blinks during power on, reset, and during normal operation.
The yellow LED is used to indicate a loop wiring fault and will blink when it
is in EZ Walk test mode. 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 during CO trouble or CO end-of-life,
and lights constantly during CO alarm.

FIGURE 1: MODULE FRONT VIEW

Green LED

Yellow LED

Red LED

Blue LED

EZ Walk Test Switch
(2-wire only)

S0331-00

TABLE 1: OPERATION MODES

OPERATION

MODE

Normal (standby) Blink 5 Sec. OFF OFF OFF

No power/
Non-operational

Loop wiring fault Blink 5 Sec. ON OFF OFF

EZ Walk Test Mode
(2-wire only)

Alarm Smoke Blink 5 Sec. OFF ON OFF

Alarm CO Blink 5 Sec. OFF OFF ON

Alarm Smoke & CO Blink 5 Sec. OFF ON ON

Maintenance
(2-wire only)

Freeze Trouble (2­wire only)

CO Trouble Blink 5 Sec. OFF OFF Blink 5 Sec.

GREEN

LED

OFF OFF OFF OFF

Blink 5 Sec. Blink 5 Sec. OFF OFF

Blink 5 Sec. OFF Blink 5 Sec. OFF

Blink 5 Sec. OFF Blink 10 Sec. OFF

YELLOW

LED

RED LED BLUE LED

NORMAL (STANDBY)

The module is powered and detectors on the loop are operating normally.

NO POWER/NON-OPERATIONAL

Power is not applied to the module or communication between the module
and the detectors on the loop is unsuccessful.

LOOP WIRING FAULT

If an open circuit occurs on the loop, the module will indicate the condition
by illuminating the yellow LED. 2-wire units will then power the style-D ter­minals. When the wiring issue on the loop has been resolved, the module will
turn the yellow LED off.

EZ WALK TEST MODE

This indicates the module and detectors are in EZ Walk Test Mode. See “EZ Walk
Test” section for instructions on how to initiate and perform the EZ Walk test.

ALARM SMOKE/ALARM CO/ALARM SMOKE & CO

A smoke alarm will be indicated by the red LED. A CO alarm will be indicated
by the blue LED.

A smoke alarm is not self-restoring. Once a smoke alarm has been signaled,
the red LED will illuminate until the module is reset by removal of power.

Note: On some panels, resetting a smoke alarm may require additional steps

at the keypad to clear the trouble conditions on CO and smoke mainte­nance zones due to power loss to the module.

A CO alarm is self-clearing. Once a CO alarm has been signaled, the blue LED
will illuminate. Once the initiating device ceases to signal the CO event, the
blue LED will turn off. If a CO alarm is signaled, and not cleared, prior to a
smoke alarm condition, the module will keep both the blue and red LED’s
illuminated. If a smoke alarm is signaled first, the module will not be able to
receive notification of a CO alarm condition and will not be able to report it
to the panel.

MAINTENANCE

This condition means one or more detectors on the loop have a smoke main­tenance issue. See “Smoke Maintenance Inquiry” section for further details.

FREEZE TROUBLE

This condition means one or more detectors on the loop are measuring the
ambient temperature is near the freezing point. See “Freeze Trouble Inquiry”
section for further details.

CO TROUBLE

The module can be notified of a detector with a CO trouble condition. All CO
trouble conditions will be reported on the CO zone and displayed with a blink­ing blue LED. The module is not able to determine the number of detectors
that have a CO trouble condition or which trouble condition exists.

INSTALLATION
MOUNTING

The module can be mounted to a 4-11/16 inch back box or inside a listed, dedi-
cated enclosure. When mounting inside an enclosure with pre-stamped holes,
it may be easier to align the bottom screw hole first. It is not necessary to use
the module cover when mounting inside an enclosure.

FIGURE 2: MOUNTING

TO VISTA ENCLOSURE

(No. 6x3/4 Type AB)

SLOT FOR MOUNTING
TO VISTA ENCLOSURE

(No. 6x5/16Type AB or Type F)

SLOTS FOR MOUNTING

TO 4-11/16 JUNCTION BOX

0331-00

WIRING GUIDELINES

All wiring must be installed in compliance with the NFPA 70 standards, Na­tional Electrical Code, applicable state and local codes, and any special re­quirements at the local Authority Having Jurisdiction (AHJ).

The screw terminals in the mounting base will accept 14-22 gauge wire. Wire
connections are made by stripping approximately ¼” of insulation from 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.

Note: The module must be installed in the same room and within 20 feet of
the panel and enclosed within conduit or equivalently protected against me­chanical injury.

WARNING

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

SS-500-004 2 I56-3871-001