[9.2] REINSTALLATION
1 . Reinstall the detector in its housing .
2 . Restore system power .
3 . Perform Detector Check .
4 . Notify the proper authorities testing has been completed and the smoke
detector system is back in operation .
[10] SENSOR REPLACEMENT
1 . Remove the sensor head by rotating counterclockwise .
2 . Pull gently to remove it .
3 . To replace the sensor head, align the mounting features and rotate clock-
wise into place .
[11] OPTIONAL ACCESSORIES
Optional accessories include RA400Z/RA100Z, RTS451/RTS151 and
RTS451KEY/RTS151KEY .
NOTE: Ensure blue wire always remains connected to RA+ on the field
connector side of the terminal block.
Note: If using a RA400Z, the tab should be broken for use with the intelli-
gent duct smoke detector. If using RA100Z, ensure that jumper is removed.
The RTS451/RTS151/RTS451KEY/RTS151KEY Remote Test Station facilitates
test of the alarm capability of the duct smoke detector . These accessories pro-
vide the stimulus to initiate an alarm condition at the detector . The SK-Duct
duct smoke detector must be reset by the system control panel .
[11.1] OPTION 1:
REMOTE TEST USING SENSOR WITH REMOTE TEST CAPABILITY
(WITHOUT A TEST COIL):
A sensor with suffix "R" is available for use inside the SK-Duct . Suffix "R"
represents a head with Remote Test Capability . Using this head inside the
SK-Duct eliminates the need for a test coil when wired to a RTS451/RTS151/
RTS451KEY/RTS151KEY Remote Test Station .
To install the RTS451/RTS151/RTS451KEY/RTS151KEY, using the sensor with
remote test capability connect the device as shown in
Figure 9
; wire runs must
be limited to 25
Ω
or less per interconnecting wire .
NOTE: Resistor assembly must be in place between RA+ and OUT+
inside the SK-Duct for Remote Test function to operate.
[11.2] OPTION 2:
REMOTE TEST USING A TEST COIL:
The use of a remote test station requires the installation of an accessory
coil, part number DCOIL, sold separately.
1) Install DCOIL in housing pocket insuring that arrow is pointing toward detector .
2) Install DCOIL mounting screw .
3) Connect each DCOIL lead to a Test Coil Terminal .
See
Figure 10
below for reference .
FIGURE 10. SK-DUCT USING A TEST COIL
TEST COIL TERMINALS
DCOIL
TEST COIL SCREW
H0561-01
FIGURE 8. WIRING DIAGRAM FOR TO RA400Z/RA100Z:
RTS451/RTS451KEY
RTS151/RTS151KEY
JUMPER
4
5
3
2
1
TEST COIL +
TEST COIL –
COMM +
OUT (CONV ONLY) +
COMM –
RA/RTS –
RA +
RTS +
H0633-00
FIGURE 9. RTS451/RTS451KEY/RTS151/RTS151KEY USING
SENSOR WITH REMOTE TEST CAPABILITY
(+)
(-)
RA400Z/RA100Z
– RA
+ RA
REMOTE ALARM LED
OPTION 1 PER UNIT
H0570-03
FIGURE 11. WIRING DIAGRAM FROM SK-DUCT TO RTS451/RTS151/
RTS451KEY/RTS151KEY USING A TEST COIL:
EXTERNAL
(-) POWER (+)
SUPPLY
*
RTS451/151,
RTS451/151KEY
REMOTE TEST STATION
LED OPTION
1 PER UNIT
10mA CURRENT DRAW
TEST COIL OPTION
1 PER UNIT
95mA CURRENT DRAW
4
5
3
2
1
TEST COIL +
TEST COIL –
COMM +
OUT (CONV ONLY) +
COMM –
RA/RTS –
RA +
RTS +
NOTE: The RTS451/151, RTS451/151KEY test coil circuit requires an
external 24 VDC power supply which must be UL listed.
[11.3] ADDITIONAL MODULE OPTION
The SK-Duct can also accommodate a relay or control module (sold sepa-
rately) within the power board side of the housing . The relay or control mod-
ule must be listed as compatible to the fire alarm control panel .
Physical Module Mounting
1) Remove the breakaway tabs at the four corners of the module
2) Locate the module at right most corner of the power board . The upper
left corner mounting hole of the module will align with a screw boss in
the housing .
3) Install a #8×
3
⁄
8
˝ Plastite screw at the screw boss location
Note: See the corresponding module Installation Instructions for general
description, control panel compatibility, wiring and ratings .
H0571-07
5
I56-3432-006
04-12
