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Wiring Information - Wheelock ET80-24MCW-FW Installation Instructions Manual

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WIRING INFORMATION:

1.
Each doubling of rated Watts increases sound output by 3 dBA. Field selectable input terminals are provided on each unit. The
following wattage selections are available: 1/8W, 1/4W, 1/2W, 1W, 2W, 4W and 8W. Frequency range of speakers is 400-
4000Hz.
2.
A 10µF blocking capacitor for DC supervision of audio lines by the FACP is factory wired in series with the speaker input. The
maximum supervision voltage is 33 volts DC.
FROM PRECEDING SPEAKER
OR FIRE ALARM
CONTROL PANEL (FACP)
FROM PRECEDING STROBE
APPLIANCE OR SYNC MODULE
* Refer to Sync Module instruction sheets SM (P83123), DSM
(P83177) or Wheelock's Power Supplies for additional information.
WARNING: THE SPEAKER STROBE APPLIANCE MUST BE FIELD SET TO THE DESIRED dBA SOUND OUTPUT LEVEL
BEFORE IT IS INSTALLED. THIS IS DONE BY PROPERLY INSERTING JUMPER PLUGS IN ACCORDANCE WITH THESE
INSTRUCTIONS.
INCORRECT SETTINGS WILL RESULT IN IMPROPER PERFORMANCE, WHICH COULD RESULT IN
PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.
Figure 3: Jumper plug is used to select tap settings which = dBA loudness.
NOTE
Connect speaker wires to common and positive of terminal block and select the power tap terminal for 1/8W, 1/4W, 1/2W, 1W, 2W,
4W or 8W; 25V or 70V as required (see Figures 1, 2, 3, 4 and Table 4).
Each letter corresponds to a plug position of the header located on the printed circuit board. Select voltage and wattage as shown in
Table 4 below.
: Connect ground wire to backbox. Install signaling appliance to backbox using mounting screws provided.
GROUNDING
WARNING: CHECK ELECTRICAL RATINGS SPECIFIED IN TABLES 1 AND 2 (AS APPROPRIATE) TO ENSURE PROPER
ELECTRICAL INPUT. BE SURE THAT SPEAKER WIRING IS CONNECTED TO SPEAKER TERMINALS ONLY AND STROBE
WIRING IS CONNECTED TO STROBE TERMINALS ONLY. CHECK TO INSURE THAT WIRING AT FACP IS CORRECT.
Figure 1:
TO NEXT SPEAKER
OR END OF LINE RESISTOR
(EOLR)
TO NEXT APPLIANCE
OR EOLR
+ STROBE - COM+
(OPTIONAL)
: Use needle nose pliers to pull and properly insert the jumper plug to the desired tap setting.
Table 4:
Speaker Voltage and Wattage Connection Chart
Position
A
B
C
D
E
F
G
H
I
J
Figure 2:
1.
The Low Profile Speaker Strobe model has in-out
wiring terminals that accept two #12 to #18 American
Wire Gauge (AWG) wires at each screw terminal.
Strip leads 3/8 inches and connect to screw terminals.
2. Break all in-out wire runs on supervised circuits to
assure integrity of circuit supervision as shown in
Figure 2. The polarity shown in the wiring diagrams is
for operation of the appliances.
Figure 4: Tap Settings (Factory setting is 70V @ 0.5W (H))
A B C D E F G H I
25V
70V
8
------
4
------
2
------
1
8
1/2
4
1/4
2
1/8
1
------
1/2
------
1/4
------
1/8
J
P84506 B
Sheet 4 of 8

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