System Sensor i3 Series Smoke Detectors - Manual (Page 3)

D100-96-00 3 I56-1800-011R
2-Wire i 3 deTeCTor Wired in STYLe d ConFiguraTion:
CAUTION
Any 2-wire i 3 smoke detector (2W-B, 2WT-B, 2WTA-B, or 2WTR-B) wired
in the Style D initiating device circuit (IDC) configuration requires the use
of a 2W-MOD2 module. This is because fire alarm control panels vary by
manufacturer on the implementation of Style D circuits. Therefore, the only
way to insure proper operation of 2-wire i
3 smoke detectors (2W-B, 2WT-B,
2WTA-B, or 2WTR-B) on Style D IDC’s is to use a 2W-MOD2 module. Refer to
the 2W-MOD2 installation manual, document D500-46-00, for Style D wiring
diagrams. The 2W-MOD2 installation manual may be downloaded from the
System Sensor web site at www.systemsensor.com.
inSTaLLaTion
WARNING
Remove power from alarm control unit or initiating device circuits before in-
stalling detectors.
NOTE: To install units so that corresponding LEDs are lined up, refer to the
“Green LED” indicator on the base.
1. Wire the mounting base screw terminals per Figure 3a or Figure 3b, as
applicable.
2. Place detector on the base and rotate clockwise. The detector will drop
into the base and lock into place with a “click”.
3. After all detectors have been installed, apply power to the alarm control
unit.
4. Test each detector as described in Testing.
5. Reset all the detectors at the alarm control unit.
6. Notify the proper authorities that the system is in operation.
CAUTION
Dust covers are an effective way to limit the entry of dust into the smoke detec-
tor sensing chamber. However, they may not completely prevent airborne dust
particles from entering the detector. Therefore, System Sensor recommends
the removal of detectors before beginning construction or other dust produc-
ing activity. When returning the system to service, be sure to remove the dust
covers from any detectors that were left in place during construction.
TeSTing
Detectors must be tested after installation and following maintenance.
NOTE: Before testing, notify the proper authorities that maintenance is being
performed and the system will be temporarily out of service. Disable the zone
or system undergoing maintenance to prevent any unwanted alarms.
Ensure proper wiring and power is applied. After power up, allow 80 seconds
for the detector to stabilize before testing.
Test i 3 Series detectors as follows:
a. TeST SWiTCh
1. An opening for the recessed test switch is located on the detector hous-
ing (See Figure 4).
2. Insert a small screwdriver or allen wrench (0.18˝ max.) into the test
switch opening; push and hold.
3. If the detector is within the listed sensitivity limits, the detector’s red
LED should light within five seconds.
Figure 4: reCeSSed TeST SWiTCh opening and SenS-rdr poSiTion
PUSH RECESSED
SWITCH WITH A
0.18″ MAX.
DIAMETER TOOL
LED
RECESSED TEST SWITCH
POSITION SENS-RDR
AT AN ANGLE ON THE
OVAL AREA OR AT THE
CHAMBER OPENING
BY THE WORD “PAINT”
S0135-00
b. Smoke enTrY TeST
Hold a smoldering punk stick or cotton wick at the side of the detector and
gently blow the smoke through the detector until it alarms.
C. direCT heaT meThod (modeLS 2WT-b and 4WT-b onLY)
Using a 1000-1500 watt hair dryer, direct the heat toward either of the thermis-
tors. Hold the heat source about 12 inches from the detector to avoid damage
to the plastic.
NOTE: For the above tests, the detector will reset only after the power source
has been momentarily interrupted.
If a detector fails any of the above test methods, its wiring should be checked
and it should be cleaned as outlined in the Maintenance section. If the detec-
tor still fails, it should be replaced.
Notify the proper authorities when the system is back in service.
Loop veriFiCaTion (modeLS 2W-b and 2WT-b onLY)
Loop verification is provided by the EZ Walk loop test feature. This feature is
for use with i
3 Series compatible control panels or the i 3 Series 2W-MOD mod-
ule only. The EZ Walk loop test verifies the initiating loop wiring and provides
visual status indication at each detector.
1. Ensure proper wiring and power is applied. Wait approximately six min-
utes before performing EZ Walk test.
2. Place control panel or module in EZ Walk Test mode (refer to panel man-
ufacturer’s manual or 2W-MOD manual D500-46-00).
3. Observe the LEDs on each detector:
TabLe 3: eZ WaLk TeST deTeCTor modeS
Green LED Red LED
Proper Operation Double blink 5 sec —
Out of Sensitivity — Double Blink 5 sec
Freeze Condition — Double Blink 10 sec
NOTE: The EZ Walk loop test must not be used instead of alarm
testing.
mainTenanCe
NOTE: Before performing maintenance on the detector, notify the proper au-
thorities that maintenance is being performed and the system will be tem-
porarily out of service. Disable the zone or system undergoing maintenance
to prevent any unwanted alarms. Power must be removed from the detector
before performing maintenance of any kind.
1. Remove the detector cover by turning counterclockwise. (See Figure 6.)
2. Vacuum the cover or use canned air to remove any dust or debris.
3. Remove the top half of the screen/sensing chamber by lifting straight up
(Figure 5).
4. Vacuum or use canned air to remove any dust or particles that are pres-
ent on both chamber halves.
5. Replace the top half of the screen/sensing chamber by aligning the arrow
on the screen/sensing chamber with the arrow on the housing. Press
down firmly until the screen/sensing chamber is fully seated.
6. Replace the detector cover by placing it over the screen/sensing chamber
and turning it clockwise until it snaps into place.
7. Reinstall the detector and test. (See the Testing section.)
8. Notify the proper authorities when the system is back in service.