DE3640
1
0&7
Supervised Wireless PowerCode Smoke Detector
Installation Instructions
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A. Separate the unit from its mounting bracket as shown in
Figure 1.
Figure 1. Separating the MCT-423 from its Bracket
B. Open the MCT-423 by pulling the cover away from the base at
the point indicated by “OPEN HERE” in Figure 2.
Figure 2. MCT-423 with Cover Swung Open
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The MCT-423 has a 4-position DIP switch function selector (see
Figure 3). The switch levers are numbered 1 to 4, and each
switch allows you to select one of two options.
Open the cover and set the function switches as desired. The ON
position is indicated by the arrow near the switch body.
Table 1. Function selector settings
Sw-
Marking
Pos.
Selected Option
Default
SW-1
LED
ON
OFF
LED will light upon transmission
LED is disabled
ON
SW-2
RESTORE ON
OFF
“Restore” events reported
“Restore” events not reported
ON
SW-3
TR-REP
ON
OFF
Alarm reported every 3 min.
Alarm reported only once
OFF
SW-4
BAT
ON
OFF
Lithium battery is being used
Alkaline battery is being used
OFF
Note: Transmissions initiated by “tamper” events will be repeated
once every 3 minutes, regardless of SW-3 setting
.
Figure 3. Transmit Indicator and Function Switch
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CAUTION: The MCT-423 comes with cover latches that will
prevent the cover from closing if there is no battery inside.
The smoke detector is supplied with a 9V alkaline battery seated
within its holder but insulated from the battery terminals.
A. Pull the battery out and peel off the insulating material to
expose the terminals.
B. Match the battery terminals with the flexible contacts on the
detector PCB. Be sure to get the polarity right. If you reverse
the [+] and [–], the battery will discharge completely within
a very short time through the built in protection diode!
C. When the terminals are properly matched, push the battery
firmly in until it is seated tightly within the holder.
Note: When the battery first makes contact with the detector,
the alarm horn may sound for one second. This indicates that
the battery is positioned properly.
D. Close the cover, then press the test button for about 5
seconds until the horn sounds two sequences of a loud
3-beep alarm. This means that the smoke detection
section is working properly.
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A tamper protection switch is
mounted on the transmitter
board. The tamper actuator,
extending through a hole in the
base (see Figure 4), is pressed
against the bracket when the
unit is attached to the bracket.
Removal of the unit from the
bracket will cause the switch
contacts to open, creating a
tamper event, which will be
reported by the transmitter to
the control panel.
Figure 4. Tamper Switch
Besides its tamper protection role, the tamper switch is used
to reset the transmitter at power up - this is important for
proper function of the unit.
SMARTHOME.COM™ 1-800-SMART-HOME 949-221-9200 http://www.smarthome.com Order #73942
