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

D100-99-00 3 I56-2170-008R
NOTE: Models 2WTR-B and 2WTA-B are not to be installed on initiating cir-
cuits containing other makes/models of smoke detectors.
NOTE: Style D initiating circuits require the use of a 2W-MOD2 for models
2WTR-B and 2WTA-B.
Wiring diagramS
FigUre 3a: Wiring diagram, 2WTr-B and 2WTa-B
2-WIRE
ZONE
2-WIRE
CONTROL
PANEL
+
–
(5) RA –
(4) RA +
(3) – IN/OUT
(2) + OUT
(1) + IN RA400Z
EOL
RESISTOR
OPTIONAL
RELEASING
DEVICE
(6) NC
(7) C
(8) NO
NOT INCLUDED ON
2WTA-B MODEL
S0122-00
NOTE: FOR ALL COMPATIBLE ADEMCO PANELS,
DO NOT EXCEED 30 OHMS LINE IMPEDANCE.
NOTE: ONLY ONE 2WTR-B DETECTOR PER ZONE CAN BE USED.
NOTE: Only one 2WTA-B detector shall be installed on a zone, unless the
panel switches the zone to a reverse polarity, non-current limited power sup-
ply. For panels that do not provide this feature, a reversing relay, System Sen-
sor model RRS-MOD, may be used. When utilized with the 2WTA-B, it allows
for more than one detector to be utilized on a loop. Some panels may require
the use of programmable outputs. Refer to System Sensor literature for further
information on the RRS-MOD. The 2WTA-B detector shall not be mixed with
other 2-wire detectors on the same zone.
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.
FigUre 3B: Wiring diagram, 4WTr-B, 4WTa-B, 4WTar-B, and
4WiTar-B
AUX OR
SMOKE
POWER
IDC
4-WIRE
CONTROL
PANEL
+
+
–
–
(5
) A
(4
) A
(3
) – IN/OUT
(2
) + OUT
(1
) + IN
EOL
RELAY
(A77-716B)
EOL
RESISTOR
(5
) A
(4
) A
(3
) – IN/OUT
(2
) + OUT
(1
) + IN
NOT INCLUDED ON
4WTA-B MODEL
NOT INCLUDED ON
4WTA-B MODEL
OPTIONAL
RELEASING
DEVICE
(6) NC (7)
C (8) NO
OPTIONAL
RELEASING
DEVICE
(6) NC (7)
C (8) NO
S0123-00
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
detector sensing chamber during construction. However, they may not com-
pletely prevent airborne dust particles from entering the detector. Therefore,
System Sensor recommends the removal of detectors before beginning con-
struction or other dust producing activity. When returning the system to ser-
vice, be sure to remove the dust covers from any detectors that were left in
place during construction.
CAUTION
Smoke detectors are not to be used with detector guards unless the combina-
tion has been evaluated and found suitable for that purpose.
CAUTION
When using the RRS-MOD with model 2WTA-B, do not mix the 2WTA-B with
other model smoke detectors and dry contact closure devices, including me-
chanical heat detectors, manual pull stations and waterflow switches. Such
mixing can cause a direct short on the auxiliary power terminals, damaging
the control panel’s internal circuitry and/or damage devices connected to the
initiating device circuit.
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 one second.
FigUre 4: reCeSSed TeST SWiTCh opening and SenS-rdr poSiTion
POSITION SENS-RDR AT AN ANGLE ON
THE OVAL AREA OR AT THE CHAMBER
OPENING BY THE WORD “PAINT”
PUSH RECESSED
SWITCH WITH A
0.18″ MAX.
DIAMETER TOOL
RECESSED
TEST SWITCH
LED
S0110-00
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.