Instruction manual
P83983 L
Sheet 3 of 4
C
A
B
D
FLUSH MOUNTING
STD. SINGLE-GANG
BACKBOX
#6-32
SCREWS
NS MOUNTING PLATE
(NSMP)
NS BEAUTY PLATE
MAXIMUM NUMBER OF CONDUCTORS
AWG #18 AWG#16 AWG#14 AWG#12
4 4 4 4
NS MOUNTING PLATE
(NSMP)
NS MOUNTING PLATE
(NSMP)
NS MOUNTING PLATE
(NSMP)
NS BEAUTY PLATE
NS BEAUTY PLATE
NS BEAUTY PLATE
#6-32
SCREWS
#8-32
SCREWS
#8-32
SCREWS
4" SQ. X 1-1/2" DEEP BACKBOX
OR 100mm X 37.5mm
EUROPEAN BACKBOX
FLUSH OR SURFACE MOUNT
SURFACE MOUNT
FLUSH OR SURFACE MOUNTING
MAXIMUM NUMBER OF CONDUCTORS
AWG #18 AWG#16 AWG#14 AWG#12
4 4 4 4
MAXIMUM NUMBER OF CONDUCTORS
AWG #18 AWG#16 AWG#14 AWG#12
4 4 4 4
DOUBLE-GANG X 2-1/4"
DEEP BACKBOX
5" SQ. X 1-9/16" DEEP
SHBB BACKBOX
MAXIMUM NUMBER OF CONDUCTORS
AWG #18 AWG#16 AWG#14 AWG#12
4 4 4 4
Figure 6:
OR END OF LINE
FROM PRECEDING
APPLIANCE, FACP
TO NEXT SIGNAL
+
-
RESISTOR (EOLR)
OR SYNC MODULE
When the sync module is used, the audible tone will be the code 3
sound only. Refer to Sync Module installation instruction sheets for
SM (P83123), DSM (P83177) or Wheelock’s Power Supplies for
additional information.
Figure 7:
• The NS-24MCW Appliance has in-out wiring
terminals that accepts two #12 to #18 American
Wire Gauge (AWG) wires at each screw
terminal. Strip leads 3/8” inches for connection
to screw terminals.
• Break all in-out wire runs on supervised circuit
supervision as shown in Figure 7. The polarity
shown in the wiring diagrams is for the
operation of the appliances. The polarity is
reversed by the FACP during supervision.
MOUNTING PROCEDURES:
1. This NS model can be flush mounted to a standard single-gang backbox (Figure A), 4” or 100mm backbox (Figure B) or double-gang backbox (Figure C). It can
also be surface mounted to a 4” or 100mm backbox (Figure B), double-gang backbox (Figure C) or the SHBB (Figure D). Mounting hardware for each mounting
option is supplied.
2. Conduit entrances to the backbox should be selected to provide sufficient wiring clearance for the installed product. Do not pass additional wires (used for other
than the signaling appliance) through the backbox. Such additional wires could result in insufficient wiring space for the signaling appliance.
3. When terminating field wires, do not use more lead length than required. Excess lead length could result in insufficient wiring space for the appliance.
4. Use care and proper techniques to position the field wires in the backbox so that they use minimum space and produce minimum stress on the product. This is
especially important for stiff, heavy gauge wires and wires with thick insulation or sheathing.
5. This NS model has an integrated strobe mounting plate (SMP) which must be oriented correctly when it is mounted to the backbox. Turn the SMP so that the
arrow above the words “Horizontal Strobe” points to the top side.
6. Move the selector switch to the desired candela setting. The setting is indicated by a pointer and can be seen on the bottom side of the lens. See Figure 1.
7. Mount the SMP first to the backbox. Next slide the beauty plate over the SMP until the 2 snaps of the beauty plate engage with the SMP.
8. The beauty plate can be removed from the strobe assembly once engaged. First, gently insert a screwdriver into one of the slots located on the top and bottom
edges of the beauty plate. Second, gently pull away from the wall with the inserted screwdriver to disengage the snap. Third, repeat the first and second steps for
the second slot. Finally, gently lift the beauty plate away from the SMP.
WARNING: WHEN INSTALLING STROBES IN AN OPEN OFFICE OR OTHER AREAS CONTAINING PARTITIONS OR OTHER VIEWING
OBSTRUCTIONS, SPECIAL ATTENTION SHOULD BE GIVEN TO THE LOCATION OF THE STROBES SO THAT THEIR OPERATING EFFECT
CAN BE SEEN BY ALL INTENDED VIEWERS, WITH THE INTENSITY, NUMBER, AND TYPE OF STROBES BEING SUFFICIENT TO MAKE SURE
THAT THE INTENDED VIEWER IS ALERTED BY PROPER ILLUMINATION, REGARDLESS OF THE VIEWER'S ORIENTATION. FAILURE TO
DO SO COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.
WARNING: THE NS HORN/STROBE IS A "FIRE ALARM DEVICE - DO NOT PAINT."
CAUTION: If these appliances are operated within 15 inches of a person's ear, they can produce a sound pressure level that exceeds the maximum 120dBA
permitted by ADA and OSHA rules. Exposure to such sound levels can result in damage to a person's hearing.
The 110 candela strobe setting is Listed for use in sleeping or non-sleeping areas when installed in accordance with appropriate NFPA Standards and the AHJ.
WARNING: INSTALLATION OF WHEELOCK 110 CANDELA STROBE PRODUCTS IN SLEEPING AREAS SHOULD BE WALL MOUNTED AT
LEAST 24" BELOW THE CEILING AS FOLLOWS: (1) THE ON AXIS (DIRECTLY IN FRONT OF LENS) LIGHT OUTPUT SHOULD BE DIRECTED
AT THE EYE-LIDS OF THE SLEEPING PERSON, E.G. PILLOW END OF BED, BED HEAD; (2) NO PART OF THE BED SHALL BE MORE THAN
SIXTEEN (16) FEET FROM THE STROBE NOTIFICATION APPLIANCE. INSTALLERS MUST ADVISE OWNERS AND OPERATORS OF
BUILDINGS WITH SLEEPING OCCUPANTS, E.G. HOTELS AND MOTELS, TO WARN GUESTS, RESIDENTS AND EMPLOYEES TO NOT MOVE
THE BED LOCATION TO A POSITION VIOLATING POINTS (1) AND (2) ABOVE OR SERIOUS INJURY AND/OR LOSS OF LIFE MAY OCCUR
DURING A FIRE EMERGENCY.
WARNING: A SMALL POSSIBILITY EXISTS THAT THE USE OF MULTIPLE STROBES WITHIN A PERSON'S FIELD OF VIEW, UNDER
CERTAIN CIRCUMSTANCES, MIGHT INDUCE A PHOTO-SENSITIVE RESPONSE IN PERSONS WITH EPILEPSY. STROBE REFLECTIONS IN A
GLASS OR MIRRORED SURFACE MIGHT ALSO INDUCE SUCH A RESPONSE. TO MINIMIZE THIS POSSIBLE HAZARD, WHEELOCK
STRONGLY RECOMMENDS THAT THE STROBES INSTALLED SHOULD NOT PRESENT A COMPOSITE FLASH RATE IN THE FIELD OF VIEW