CWSI 350 User manual

P/N CWSI-IM-350 Rev. E *CWSI-IM-350E*
© 2017 Johnson Controls. All rights reserved. All specifications and other information
shown were current as of document revision date and are subject to change without notice.
Carbon Monoxide Detector with Transmitter
Model 350
Description:
The Model 350 is a self-contained carbon monoxide (CO) detector with an integral sounder
and transmitter. The detector complies with UL 2075 and is designed to provide protection
in dwellings. It is fully supervised for tamper, low battery, sensor end of life, sensor open
circuit, RF signal integrity and has a built in gas test feature. The CO detector is powered
by a single 3 volt lithium battery as listed under the specifications section of this manual
and the label on the product. The Model 350 is intended to be used with CWSI Fire Alarm
Control Panels. Refer to the control panel manual for compatibility details.
IMPORTANT: CO detectors must be tested and maintained regularly following NFPA 720
requirements. At a minimum, cleaning should be performed annually.
Programming:
The 350 must be enrolled into the CWSI Fire Alarm Control Panel before installing the
device. The Model 350 will not report Alarms, Supervisory or trouble signals unless it
is enrolled into a compatible control panel. The CO detector can be enrolled at the
control panel or any enrolled repeater. Place the FACP in enrollment mode then install the
battery in the CO detector observing polarity. The model 350 serial number will be
displayed on the FACP. Refer to the control panel installation instructions for further details
on enrollment and transmitter programming options. After the model 350 is enrolled,
remove the battery and reinstall it only at the transmitters intended mounting location.
Installation:
Select an accessible location that is not prone to tampering or accidental damage. The
Model 350 must be installed and maintained in accordance with the National Fire
Protection Association’s Standards (NFPA), the National Electrical Code and all local
fire and electrical requirements. The mounting surface should be relatively flat and
capable of accepting screws or anchors. The CO detector is to be installed in an indoor dry
location. Exposure to weather or corrosive conditions may damage the detector. CO
detectors are not to be used with detector guards unless the combination has been
evaluated and found suitable for that purpose. The mounting position on a wall should be
no less than 48” from the floor and more than 6” from the ceiling. The mounting position on
a ceiling should be at least 12” from any wall. Perform the signal test described in this
manual prior to and after permanently mounting the detector. Note: If the detector is
mounted to a removable ceiling tile, the tile must be secured with the appropriate fasteners
to prevent tile removal or mount the detector across a ceiling panel support as shown in
figure 1. First install the mounting base using the screws supplied. Install the battery in the
battery holder. The polarity is marked on the holder. Attach the detector to the base by
turning the detector in a clockwise direction until it clicks into place. Wait for the green and
red LED’s to indicate standby condition (green blinks every 10s and red off) then perform
the signal test and fully test the detector for alarm as described in Alarm Testing.

P/N CWSI-IM-350 Rev. E
© 2017 Johnson Controls. All rights reserved. All specifications and other information
shown were current as of document revision date and are subject to change without notice.
2
Figure 1 Proper Mounting to Ceiling Tile
Tamper-Resistant Feature
The CO detector includes a tamper-resistant feature that prevents removal from the
mounting base without the use of a tool. To engage the tamper-resistant feature, cut the
small plastic tab located on the mounting base (Figure 2), and then install the detector. To
remove the detector from the base once it has been made tamper resistant, use a small
screwdriver to depress the square tamper release tab, located on the skirt of the mounting
base, and turn the detector counterclockwise.
Figure 2 Tamper Resistant Feature
Cautions:
1. Make sure the battery is firmly installed in the CO detector battery compartment.
2. The detector must be secured tightly to the wall, so as to not be dislodged.
3. Test the detector after any service, battery change or as often as local or national codes
dictate.
Do NOT Install Detectors in the Following Areas:
In an area where cross-interference gasses are present. Cross interference
gasses include but are not limited to: Methane, Butane, Heptane, Ethyl Acetate,
Isopropyl Alcohol, Carbon Dioxide, Ammonia, Ethanol, Toluene, Trichloroethane
and Acetone.
Within 10 feet of a flame fueled appliance.
In any area that is out of the detectors environmental specification range.
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.
Consult NFPA 720, the local Authority Having Jurisdiction (AHJ), and/or applicable codes
for specific information regarding the spacing and placement of CO detectors. Refer to
technical bulletin part number CWSI-IM-350-TB-Rev B for more information.

P/N CWSI-IM-350 Rev. E
© 2017 Johnson Controls. All rights reserved. All specifications and other information
shown were current as of document revision date and are subject to change without notice.
3
Operation:
Led status indicators and Sounder
The 350 detector is equipped with two LED’s status indicators and a sounder to provide
local visual and audible indication of the detector’s status. The table below explains the
LED and sounder functions.
LED Status and Sounder Operation
Condition
Green LED
Red LED
Sounder
Transmitted Signal
to FACP
Power up
Blink every
10s for 40s
Blink every
10s for 40s
Off
Power Up Reset▲
Standby
Blink
every 10s
Off
Off
Test (check in)
every 90s
Alarm
Off
Blink once
a second
Temporal 4
pattern
Alarm▲▲
Test Switch
Pressed
(normal
standby)
Off
Blink once
a second
Temporal 4
pattern
Alarm▲▲
Test Switch
pressed (in
alarm)
Off
Blink once
a second
Silenced for 5
minutes*
Alarm▲▲
Low Battery
Off
Blink
every 45s
Chirp every 45s**
Low Battery
Trouble▲▲▲
Test Switch
pressed (in
low batt)
Off
Blink
every 45s
Silenced for 12
hours
Low Battery
Trouble▲▲▲
Cell Health
Fault
Off
Blink
every 5s
Chirp every 45s
Tamper/Maint
Trouble▲▲▲
Cell End of
Life
Off
Blink every
10s
Chirp every 45s
Tamper/Maint
Trouble▲▲▲
Tamper
Blink
every 10s
Off
Off
Tamper/Maint
Trouble▲▲▲
Table 1
*Only if the detected CO level is below 350ppm.
**Low Battery chirp begins 7 days after initial low battery trouble on the control panel.
▲Within 30 seconds of installing a good battery.
▲▲Indication on FACP within 10 seconds then repeated every 60 seconds.
▲▲▲Indication on FACP within 200 seconds then repeated every 90 seconds.
Alarm Operation:
When the detector senses CO the Green LED extinguishes, the Red LED blinks once a
second, the internal sounder turns on in the temporal 4 pattern and the following occurs:
1. An initial alarm signal is transmitted.
2. A 60 second delay occurs. If during this delay the detectors alarm condition is cleared, a
restore signal is sent ending the alarm cycle.
3. The continued alarm condition causes a repeat alarm transmission.
4. Another 60 second delay as in step 2 occurs.
5. Step 4 repeats at 60 second intervals until the detectors alarm condition is cleared.

P/N CWSI-IM-350 Rev. E
© 2017 Johnson Controls. All rights reserved. All specifications and other information
shown were current as of document revision date and are subject to change without notice.
4
Alarm/Gas Testing
Detectors must be tested after installation and following maintenance or battery
replacement. NOTE: Before testing, notify the proper authorities that maintenance is
being performed and the system will be temporarily out of service. Place the control
panel in test to prevent any unwanted alarms. Perform the test below to properly test the
350 detector. If a detector fails any of the tests below, it should be cleaned as outlined in
the Maintenance section. If the detector still fails, it should be replaced.
Warning: This test will cause an alarm signal to be transmitted. This test will only
function if the detector is operating within its proper sensitivity limits and is not in a trouble
condition. The purpose of this test is to check the functionality of the sensor and circuitry.
The model 350 has a functional gas test mode which can be used to verify the detector’s
ability to sense carbon monoxide gas. To perform the alarm/functional gas test, follow the
steps below:
1. Locate the recessed detector test switch located on the detector cover (Figure 3).
2. With a small screwdriver, depress and hold the recessed “Test” switch for
approximately 2 seconds. The detector will temporarily sound in alarm and the
red LED will illuminate.
3. An Alarm signal will be annunciated at the control panel.
4. Within a few seconds the green LED will start to blink rapidly indicating the
detector is in functional test mode awaiting gas entry.
5. Spray a very small amount of Solo brand C6 canned CO into one of the 3 small
gas entry holes located on the top center of the detector (figure 3).
6. Upon successful gas entry and if functioning properly, the detector will alarm by
sounding in a Temporal 4 pattern with the red LED blinking.
7. The alarm condition at the detector will time out in 20 to 60 seconds or when the
CO gas has cleared.
8. If gas entry is unsuccessful, the test will time out after 27 seconds.
9. When testing of the CO detector(s) is completed, remove the panel from test
mode and notify the proper authorities when the system is back in service.
Figure 3 LEDS, Sounder, Test Switch and Signal Test Locations
Signal Test:
The test must be performed while the CO detector is held in its intended mounting location.
Install a battery in the CO detector. Initiate the test by placing a strong magnet on the CO
detector housing at the location shown in figure 3. The piezo sounder on the rf transmitter
inside the detector will beep once. A delay of up to 15 seconds will occur followed by either
one or two beeps. One beep indicates an unacceptable location and two beeps indicate an
acceptable location. If only one beep is heard then relocate the model 350 mounting

P/N CWSI-IM-350 Rev. E
© 2017 Johnson Controls. All rights reserved. All specifications and other information
shown were current as of document revision date and are subject to change without notice.
5
position closer to the nearest repeater or control panel and perform the test again. Continue
this procedure until 2 beeps are achieved. Do not mount the CO detector unless 2 beeps
are heard when performing 5 consecutive signal tests. This test must be performed before
and after transmitter installation. Note: A CWSI model AR-3(A), AR-5 repeater or control
panel must be powered up, installed and enrolled before running this test.
Test Switch Functions:
This switch has multiple functions and is located in an opening on the detector housing as
shown in figure 3. To activate the recessed switch insert a small tool
test switch opening; push and hold for 3 seconds. Warning: Pressing this switch WILL
cause an alarm at the control panel.
The functions of the Test Switch are:
1. Test the functionality of the detectors circuitry when pressed while the detector is in
standby.
2. Silence the low battery chirp for 12 hours if pressed during low battery.
3. Silence the sounder for 5 minutes if pressed while the detector is in Alarm.
Low battery:
The model 350 CO detector tests for a low battery condition every 65 minutes. The battery
voltage has to be at or below 2.7V nominally for two consecutive low battery tests before a
low battery trouble condition is transmitted. When a low battery is detected the green LED
will turn off, the red LED will blink every 45 seconds, and a low battery trouble signal will be
transmitted and repeated every 90 seconds. The sounder will begin to chirp if the low
battery signal exists for 7 days. Pressing the CO detector test button will silence the
sounder chirp for 12 hours. If more than one type of trouble exists, all will be repeated in
increments of 90 seconds. Always replace the battery with a new one. Refer to the Battery
Installation and Replacement section for instructions on battery replacement.
Battery Installation and Replacement:
Warning: Always install a new battery of one of the approved types as listed in the
Specifications section of this manual and the product label. When a battery is first
inserted, a low battery test is performed. If the battery passes the test, the LED’s should
indicate normal standby. If the battery does not pass this test, the detector will transmit a
Tamper/Maint signal and the LEDs will not blink at all. In this case a fresh battery should
be installed.
To replace the battery:
1. Place the Control Panel in Test mode to prevent any unwanted alarms.
2. Remove the detector from its mounting base by twisting the detector counterclockwise.
Remove the battery and dispose of properly. If the Tamper Resistant feature was
implemented during installation then follow the instructions under that section for removing
the detector.
3. To insure proper power down sequence, wait a minimum of 20 seconds before installing
a new battery.
4. Install a new approved 3 volt lithium battery in the battery compartment following the
polarity diagram inside the compartment. A power up reset trouble signal should be
indicated on the Control Panel within 30 seconds. A tamper trouble will also be indicated if
the smoke alarm is not attached to the base.
5. Reinstall the CO detector onto the mounting base by turning the detector clockwise.

P/N CWSI-IM-350 Rev. E
© 2017 Johnson Controls. All rights reserved. All specifications and other information
shown were current as of document revision date and are subject to change without notice.
6
6. The LED’s should indicate Power up and then Normal Standby conditions as shown in
the LED status and sounder table.
7. Test the detector for alarm operation as described in the Alarm Testing section of this
manual.
8. If the detector does not function as described in items 6+7 then start over at step 2. If it
still doesn’t operate correctly then replace the detector.
9. Remove the panel from test mode.
Power Up Reset:
The Models 350 will report this trouble within 30 seconds when powered up. This is normal.
If a power up reset occurs anytime after the initial indication then the transmitter is
malfunctioning. Replace the detector.
Test Failure:
The Model 350 transmits a periodic test signal to the FACP. This trouble condition will be
displayed within 200 seconds on the control panel if it does not receive the test
transmission. The detector may be out of reception range of a repeater or control panel or
the detector may have an internal problem. Perform the signal test described in this manual
to determine if there is a reception problem. Note: This trouble is self-restoring on CP-
3500D and newer FACP’s.
Tamper:
The Models 350 contain a built in contact that will cause a Tamper/Maint signal to be
transmitted if the detector is removed from its mounting position. Upon detector removal, a
tamper signal is transmitted and repeated every 90 seconds until the detector is mounted
on its base. Where more than one type of trouble exists, all will be repeated in increments
of 90 seconds. Note: This trouble is self-restoring on CP-3500D and newer FACP’s.
CO Trouble / Sensor End of Life:
The Models 350 monitor the CO sensing element for open circuit and end of life. If a
sensing element open circuit is detected the Green LED will extinguish and the Red LED
will flash every 5 seconds. If the sensing element end of life is reached the Green LED will
extinguish and the Red LED will flash every 10 seconds. The detector sounder will chirp
every 45 seconds and transmit a Tamper/Maint signal if either fault occurs. The signal will
be repeated every 90 seconds until the condition is corrected. Replace the detector.
Maintenance
Perform maintenance yearly at a minimum. Warning: Never remove the tamper proof
screws attaching the detector cover to the chassis containing the circuit boards. The
sensing element cannot be cleaned. Never expose the detector to aerosol products
such as furniture polish, paint or varnish that can coat the CO sensing element and
render it inoperative.
NOTE: Before performing maintenance on the detector, notify the proper authorities that
maintenance is being performed and the system will be temporarily out of service. Place
the control panel in test mode to prevent any unwanted alarms.
The battery must be removed from the detector before performing maintenance of any kind.
1. Place the Control Panel in Test mode to prevent any unwanted alarms.
2. Remove the detector by turning counterclockwise and remove the battery.

P/N CWSI-IM-350 Rev. E
© 2017 Johnson Controls. All rights reserved. All specifications and other information
shown were current as of document revision date and are subject to change without notice.
7
3. Clean the detector housing using a cloth moistened with water. Make sure the holes on
the detector cover are clear of debris. Never use cleaning agents to clean the detector.
4. Reinstall the battery.
5. Reinstall the CO detector onto the mounting base by turning the detector clockwise.
6. Test the detector for alarm operation as described in the Alarm Testing section of this
manual.
7. If the detector does not function as described in item 10 then start over at step 2. If it still
doesn’t operate correctly then replace the detector.
8. Remove the panel from test mode.

P/N CWSI-IM-350 Rev. E
© 2017 Johnson Controls. All rights reserved. All specifications and other information
shown were current as of document revision date and are subject to change without notice.
8
Specifications:
Battery Type: 3 Volt Lithium; Panasonic CR123A.
Battery Life: 12 Months Minimum
Battery Replacement: Upon Low battery report and/or during annual
maintenance.
Average Standby Current: 32.8ua
Average Alarm Current: 35ma
Tamper Switch: On base
Sounder: 85db at 10’ temporal 4 pattern.
Reset: Automatic
Sensitivity: Listed to UL-2075 Evaluated to UL-2034
Low battery threshold: 2.7V
Operating Temperature Range: 32F to +100F.
Operating Humidity Range 15% to 95% RH.
Maximum Operating Altitude 6000ft. above sea level
Testing: Follow this manual and NFPA 720 or local requirements.
Transmission: In compliance with FCC part 15 for reception on equipment
manufactured by Tyco Fire & Security GmbH
Test Transmission: Every 90 seconds
Mounting base diameter 5.30”
Weight 7.0 oz. without battery
FCC Statement
Important: Any changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate the equipment
This device complies with part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
Disclaimer
The information contained in this document is believed to be accurate and
reliable at the time of printing. Known corrections or omissions may be found on errata
sheets included in the various product manuals. However, CWSI a Tyco Fire & Security
GmbH Company (CWSI), may not be held accountable for errors or omissions in this or
other CWSI publications. No license is granted by implication or otherwise under any patent
rights of CWSI. Applicable terms and conditions can be found at
http://tycofsbp.com/TFPPTerms_of_Sale/TFPPTerms_of_Sale.pdf