CWSI 320 User manual

P/N IM-320 Rev. A / APD0648 A150224
© 2014 Commercial Wireless Systems International, LLC
P/N IM-300 Rev. E / APD0610 A140707
2010 Commercial Wireless Systems International, LLC
1
Smoke/Heat Detector with Transmitter
Model 325/320
Description:
The Model 325 is a self-contained photoelectric type smoke detector with an integral
transmitter, heat detector, and sounder for open area detection. The model 320 is a heat
detector only with a transmitter. The detector complies with UL268 and UL521. The
detector is fully supervised for tamper, low batteries, chamber contamination, low
temperature and RF signal integrity. The smoke detector is powered by 3 AAA batteries
as listed under the specifications section of this manual and the label on the product. The
Model 325/320 is intended to be used with Commercial Wireless Systems International,
LLC Model CP-3500D Fire Alarm Control Panel. Refer to the CP-3500D FACP
installation instructions part number IM-C3KA(DA) for additional details.
IMPORTANT: Smoke detectors must be tested and maintained regularly following NFPA
72 requirements. At a minimum, cleaning should be performed annually.
Programming:
The 325/320 must be enrolled into the CP-3500D Fire Alarm Control Panel before
installing the device. The Model 325/320 will not report Alarms, Supervisory or
trouble signals unless it is enrolled into the CP-3500D control panel. The smoke
detector can be enrolled at the control panel or any enrolled repeater. Place the CP-
3500D FACP in enrollment mode then install the batteries in the smoke detector
observing polarity. The model 325/320 serial number will be displayed on the CP-3500D
FACP. Refer to the CP-3500D control panel installation instructions for further details on
enrollment and transmitter programming options. After the model 325/320 is enrolled,
remove the batteries and reinstall them only at the transmitters intended mounting
location.
Installation:
Select an accessible location that is not prone to tampering or accidental damage. The
Model 325/320 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 smoke detector is to be installed in an
indoor dry location. Exposure to weather or corrosive conditions may damage the unit.
Smoke detectors are not to be used with detector guards unless the combination has
been evaluated and found suitable for that purpose. Perform the signal test described
in this manual prior to and after permanently mounting the unit. 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 bracket using the screws supplied. Install the
batteries in the battery holders. The polarity is marked on each holder. Attach the
detector to the bracket by turning the detector in a clockwise direction until it clicks into
place, then perform the signal test and fully test the unit for alarm as described in Alarm
Testing.
Heat Detector with Transmitter
Model 320
Description:
The model 320 is a heat detector with an integral transmitter. The detector complies with
UL521. The detector is fully supervised for tamper, low batteries and RF signal integrity.
The detector is powered by 3 AAA batteries as listed under the specications section of
this manual and the label on the product. The Model 320 is intended to be used with a
compatible Commercial Wireless Systems International, LLC Model Fire Alarm Control
Panel. Refer to the FACP installation instructions for additional details.
IMPORTANT: Detectors must be tested and maintained regularly following NFPA 72
requirements. At a minimum, cleaning should be performed annually.
Programming:
The 320 must be enrolled into the Fire Alarm Control Panel before installing the device. The
Model 320 will not report Alarms, Supervisory or trouble signals unless it is enrolled
into the control panel. The detector can be enrolled at the control panel or any enrolled
repeater. Place the FACP in enrollment mode then install the batteries in the detector
observing polarity. The model 320 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 320 is enrolled, remove the batteries and reinstall
them only at the transmitters intended mounting location.
Installation:
Select an accessible location that is not prone to tampering or accidental damage. The
Model 320 must be installed and maintained in accordance with the National Fire
Protection Association’s Standards (NFPA), the National Electrical Code and all
local re and electrical requirements. The mounting surface should be relatively at and
capable of accepting screws or anchors. The detector is to be installed in an indoor dry
location. Exposure to weather or corrosive conditions may damage the unit. These detectors
are not to be used with detector guards unless the combination has been evaluated and
found suitable for that purpose. Perform the signal test described in this manual prior to
and after permanently mounting the unit. 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 gure 1. First install the
mounting bracket using the screws supplied. Install the batteries in the battery holders. The
polarity is marked on each holder. Attach the detector to the bracket by turning the detector
in a clockwise direction until it clicks into place, then perform the signal test and fully test the
unit for alarm as described in Alarm Testing.
1

P/N IM-320 Rev. A / APD0648 A150224
© 2014 Commercial Wireless Systems International, LLC
P/N IM-300 Rev. E / APD0610 A140707
2010 Commercial Wireless Systems International, LLC
2
Figure 1 Proper Mounting to Ceiling Tile
Tamper-Resistant Feature
The smoke 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, insert a
small screwdriver in the hole located near the alignment mark, and turn the detector
counterclockwise.
Figure 2 Tamper Resistant Feature
Cautions:
1. Make sure the batteries are firmly installed in the smoke detector battery holders.
2. The unit must be secured tightly to the wall, so as to not be dislodged.
3. Test the unit after any service, changing the batteries or as often as local or national
codes dictate.
Do NOT Install Detectors in the Following Areas:
In or near areas where particles of combustion are normally present such as
kitchens; in garages; near furnaces, hot water heaters, or gas space heaters.
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.
Consult NFPA 72, the local Authority Having Jurisdiction (AHJ), and/or applicable codes
for specific information regarding the spacing and placement of smoke detectors. Refer to
technical bulletin part number IM-300-TB-RevB for more information.
2
Tamper-Resistant Feature
The 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, insert a small screwdriver in
the hole located near the alignment mark, and turn the detector counterclockwise.
Cautions:
1. Make sure the batteries are rmly installed in the detector battery holders.
2. The unit must be secured tightly to the wall, so as to not be dislodged.
3. Test the unit after any service, changing the batteries or as often as local or national
codes dictate.
Do NOT Install Detectors in the Following Areas:
• In or near areas where particles of combustion are normally present such as
kitchens; in garages; near furnaces, hot water heaters, or gas space heaters.
• 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.
Consult NFPA 72, the local Authority Having Jurisdiction (AHJ), and/or applicable codes for
specic information regarding the spacing and placement of detectors. Refer to technical
bulletin part number IM-300-TB-RevB for more information.

P/N IM-320 Rev. A / APD0648 A150224
© 2014 Commercial Wireless Systems International, LLC
3
Operation:
LED status indicators and Sounder
The 320 detector is equipped with a tricolored LED status indicator to provide local visual
indication of the detector’s status. The table below explains the LED and sounder functions.
LED Status
Condition LEDs Sounder Transmitted
Signal to FACP
Power up Red, yellow, green ash
sequence
One chirp at the end of
power-up sequence Power Up Reset
Standby Off Off Test 90s
Heat
Alarm/Test
(320 Only)
Red ash every 1
second Off Alarm
Detector
Trouble
Yellow ash every 4
seconds Off Hardware Fault
Low
Batteries
Yellow ash every 12
seconds Off Low Battery Trouble
Tamper
Red, yellow, green ash
sequence every 12
seconds
Off Tamper Trouble
Table 1
Model 320 LED ashes locally during a freeze event, it does not transmit a Freeze Trouble
signal to the panel.
Alarm Operation:
When the detector senses heat the Red LED ashes once a second and the following occurs:
1. An initial alarm signal is transmitted.
2. A 60 second delay occurs. If during this delay the alarm condition is reset, 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 reset.
Alarm Testing
Detectors must be tested after installation and following maintenance or batteries
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 (refer to the FACP manual). Perform test A
below to properly test the 320 detector. If a detector fails the test below, it should be cleaned
as outlined in the Maintenance section. If the detector still fails, it should be replaced.
A. Direct Heat Test
1. Using a hair dryer or heat gun, direct the heat toward the thermistor, holding the heat
source 12 inches away to avoid damage to the plastic housing.
2. The LED on the detector will ash and an alarm signal will be sent to the panel when
temperature reaches the alarm set point. (135° F)
If all tests pass, remove the panel from test mode (Refer to the FACP manual) and notify the
proper authorities when the system is back in service.

P/N IM-320 Rev. A / APD0648 A150224
© 2014 Commercial Wireless Systems International, LLC
P/N IM-300 Rev. E / APD0610 A140707
2010 Commercial Wireless Systems International, LLC
5
Figure 3 LEDS, Sounder, Test Switch and Signal Test Locations
Signal Test:
The test must be performed while the smoke detector is held in its intended mounting
location. Install batteries in the smoke detector. Initiate the test by placing a strong
magnet on the smoke detector housing at the location shown in figure 3. The model
325/320 piezo sounder 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
325/320 mounting 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 smoke
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-5
repeater or CP-3500D Control Panel must be powered up, installed and enrolled before
running this test.
Test Switch Functions (325 Only):
This switch has multiple functions and is located on the detector housing as shown in
figure 3. To activate the switch, push and hold for 5 seconds. Pressing this switch will not
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 detector sounder for 5-10 minutes if pressed anytime while the sounder is
turned on in the temporal pattern.
Low batteries:
The Wireless Smoke Heat Alarm is powered by 3 AAA Duracell Procell or 3 AAA
Energizer E92 batteries (included). The detector regularly checks for low batteries. If low
batteries are detected, the transmitter sends a low battery message to the control panel,
which displays the detector’s ID. In addition, the yellow LED of the detector will blink
every 12 seconds. Be sure to replace all of the batteries with fresh ones.
4
Signal Test:
The test must be performed while the detector is held in its intended mounting location.
Install batteries in the detector. Initiate the test by placing a strong magnet on the detector
housing at the location shown in gure 3. The model 320 piezo sounder 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 320 mounting 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 detector unless 2 beeps are heard when performing 5 consecutive signal tests.
This test must be performed before and after transmitter installation. Note: A compatible
CWSI repeater or Control Panel must be powered up, installed and enrolled before running
this test.
Low batteries:
The Wireless Heat Alarm is powered by 3 AAA Duracell Procell or 3 AAA Energizer E92
batteries (included). The detector regularly checks for low batteries. If low batteries are
detected, the transmitter sends a low battery message to the control panel, which displays
the detector’s ID. In addition, the yellow LED of the detector will blink every 12 seconds. Be
sure to replace all of the batteries with fresh ones.

P/N IM-320 Rev. A / APD0648 A150224
© 2014 Commercial Wireless Systems International, LLC
5
Batteries Installation and Replacement:
Warning: Always install three new batteries of one of the approved types as listed in
the Specications section of this manual and the product label. When batteries are
rst inserted, a low battery test is performed. If the batteries pass the test, the LED’s should
indicate the power up sequence. If the power up sequence is not indicated replace the
batteries. If the issue still exists replace the detector.
To replace the batteries:
1. Place the Control Panel in Test mode to prevent any unwanted alarms. (Refer to the FACP
manual)
2. Remove the detector from its mounting base by twisting the detector counterclockwise.
Remove the batteries 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
new batteries.
4. Install 3 new AAA batteries of a type listed in the specications section of this manual in
the batteries compartment following the polarity diagram inside the compartment. A power
up reset trouble signal should be indicated on the Control Panel within 60 seconds of
installing the new batteries on an enrolled detector. A tamper trouble will also be indicated
if the alarm is not attached to the base.
5. Reinstall the detector onto the mounting base by turning the detector clockwise.
6. The LEDs 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 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 entire unit.
9. Remove the panel from test mode. (Refer to the FACP manual)
Tamper:
The Model 320 contains a built in contact that will cause a tamper 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.
Power Up Reset:
The Model 320 will report this trouble when rst powered up. This is normal. If a power
up reset occurs any time after the initial indication then the transmitter is malfunctioning.
Replace the unit.
Test Failure:
The Model 320 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
itself may have an internal problem. Perform the signal test described in this manual to
determine if there is a reception problem.
Hardware Fault:
The Model 320 monitors the integrity of the internal electronics. A Hardware Fault trouble
will be displayed on the FACP if there is a failure with the internal circuitry or memory. If this
occurs replace the detector.

P/N IM-320 Rev. A / APD0648 A150224
© 2014 Commercial Wireless Systems International, LLC
6
Maintenance
Perform maintenance yearly or whenever a Maintenance Req. Trouble signal is indicated.
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. (Refer to the FACP manual)
1. Place the Control Panel in Test mode to prevent any unwanted alarms. (Refer to the FACP
manual)
2. Remove the detector by turning counterclockwise.
3. Vacuum through the openings around the perimeter of the alarm or use canned air to
remove any dust or debris. The outside of the alarm can be wiped with a damp cloth.
4. Reinstall the detector onto the mounting base by turning the detector clockwise.
5. Test the detector for alarm operation as described in the Alarm Testing section of this
manual.
6. If the detector does not function as described in item 5 then start over at step 2. If it still
doesn’t operate correctly then replace the entire unit.
7. Remove the panel from test mode. (Refer to the FACP manual)
Specications:
• Batteries Type: Three (3) AAA PC2400 Duracell Procell or three (3) AAA
Energizer E92 batteries
• Batteries Life: 12 Months Minimum
• Batteries Replacement: Upon Low batteries report and/or during annual
maintenance.
• Average Standby Current: 35uA
• Average Alarm Current: 35mA
• Max Current: 50mA
• Tamper Switch: On base
• Reset: Automatic
• Supplementary heat rating: 135°F
• Operating Temperature Range: 40°F to +100°F.
• Operating Humidity Range 15 to 95% RH.
• Testing: Follow this manual and NFPA 72 or local requirements.
• Transmission: In compliance with FCC part 15 for reception on equipment
manufactured by Commercial Wireless Systems International, LLC.
• Test Transmission: Every 90 seconds.
• Mounting base diameter 5"
• Weight (including batteries) 8.57 oz.
FCC Statement
Important: Any changes or modications 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.

P/N IM-320 Rev. A / APD0648 A150224
© 2014 Commercial Wireless Systems International, LLC
7
COMMERCIAL WIRELESS SYSTEMS INTERNATIONAL, LLC
TWO YEAR LIMITED WARRANTY
Commercial Wireless Systems International, LLC (“Seller”), 10798
N.W. 53 Street, Sunrise, Florida 33351, warrants this product to be
free from defects in workmanship for two years from date of purchase,
under normal use and service. Seller’s obligation is limited to repairing
or replacing, at sellers option, free of charge for parts and labor any
part proven to be defective in materials or workmanship. Seller shall
have no obligation under this warranty otherwise if: (1) the product is
altered, repaired or serviced by anyone other than the seller, (2) the
product is damaged from accidents, acts of God, misuse, tampering
or abuse, (3) product is not installed and operated in accordance with
the instructions provided by the seller. In case of defect, contact the re
alarm professional who installed and maintains your re alarm system
or the seller for product repair.
This two year Limited Warranty is in lieu of all other express warranties,
obligations, or liabilities. There are no express warranties that extend
beyond the face hereof. In no case shall seller be liable to anyone for
any consequential or incidental for breach of this or any other warranty,
express or implied, or upon any other basis of liability whatsoever, even
if the loss or damage is caused by the seller’s own negligence or fault.
Seller shall have no liability for any personal injury, property damage, or
other loss based on a claim that the product failed to operate correctly.
However, if the seller is held liable, whether directly or indirectly, for any
loss or damage arising under this warranty or otherwise, regardless of
cause of origin, Seller’s maximum liability shall not in any case exceed the
purchase price of the product, and shall be the complete and exclusive
remedy against the Seller.

P/N IM-320 Rev. A / APD0648 A150224
© 2014 Commercial Wireless Systems International, LLC
8
NOTES