System Sensor DNRHS - Manual (Page 5)

SS-400-006 5 I56-3535-002R
CAUTION
Canned aerosol simulated smoke (canned smoke agent) formulas will vary by
manufacturer . Misuse or overuse to these products may have long term ad-
verse effects on the smoke detector . Consult the canned smoke agent manufac-
turer’s published instructions for any further warnings or caution statements .
[9]DETECTOR CLEanInG PROCEDuRES
Notify the proper authorities that the smoke detector system is undergoing
maintenance, and that the system will temporarily be out of service . Disable
the zone or system undergoing maintenance to prevent unwanted alarms and
possible dispatch of the fire department .
[9.1]DETECTOR SEnSOR
1 . Remove the sensor to be cleaned from the system .
2 . Remove the sensor cover by pressing firmly on each of the four removal
tabs that hold the cover in place .
3 . Vacuum the screen carefully without removing it . If further cleaning is
required continue with Step 4, otherwise skip to Step 7 .
4 . Remove the chamber cover/screen assembly by pulling it straight out .
5 . Use a vacuum cleaner or compressed air to remove dust and debris from
the sensing chamber .
6 . Reinstall the chamber cover/screen assembly by sliding the edge over the
sensing chamber . Turn until it is firmly in place .
7 . Replace the cover using the LEDs to align the cover and then gently
pushing it until it locks into place .
8 . Reinstall the detector .
[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.
(+)
(-)
RA400Z/RA100Z
– RA
+ RA
REMOTE ALARM LED
OPTION 1 PER UNIT
fIGuRE 9. wIRInG DIaGRam fOR DnRHS TO Ra400Z/Ra100Z:
H0570-03
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 DNRHS
duct smoke detector must be reset by the system control panel .
TEST COIL TERMINALS
DCOIL
TEST COIL SCREW
H0561-01
fIGuRE 10. DnRHS wITH TEST COIL
SENSOR COVER
COVER REMOVAL TABS
SCREEN ASSEMBLY
SENSING
CHAMBER
C0170-00
fIGuRE 11. LaSER HEaD EXPLODED VIEw: