D4240 System Sensor, D4240 Datasheet - Page 5

• Manufacturer Part Number: D4240
• Description: Duct Smoke Detector
• Manufacturer: System Sensor

NOTE 1: 24V Power Inputs accept a non-polarized 24VDC or 24VAC 50-60Hz.
240VAC Power Inputs accept only 240VAC 50-60Hz. Connect power source to
appropriate terminals of each detector. See specifications for additional power
supply information.
NOTE 2: Auxiliary contacts shown in standby position. Contacts switch dur-
ing alarm as indicated by arrows. Auxiliary contacts are not to be used for
connection to the control panel. See specifications for contact ratings.
NOTE 3: Supervisory contacts shown in standby position. Open contacts indi-
cate a trouble condition to the panel. See specifications for contact ratings.
NOTE 4: Alarm Initiation contacts shown in standby position. Closed contacts
indicate an alarm condition to the panel. See specifications for contact ratings.
TabLe 2. diP SWiTch SeTTingS:
SS-300-022
figure 7. SYSTem Wiring diagram for 4-Wire ducT Smoke deTecTorS:
Do not loop wire under terminals when wiring detectors. Break wire runs to provide system supervision of connections.
TRBL SHUTDN
Designation
SENSORS
MIN TMPR
DELAY
CONTROL PANEL
ALARM
INITIATION
LOOP
UL/FM LISTED
4-WIRE
Default
OFF
+
1
7
FOR FAN SHUTDOWN, ETC. (NOTE 2)
ALARM
INITIATION
CONTACTS
(NOTE 4)
N.C.
FIRST DETECTOR IN THE LOOP
16
SUPERVISORY CONTACTS
POWER INPUTS (NOTE 1)
AUX A
AUXILIARY CONTACTS
SUP C.
Selection
24VAC/DC
9
C.
14
6
OFF
ON
(NOTE 3)
1
2
7
0
N.O.
10
17
5
4
OR
N.C.
8
ALARM N.O.
ALARM C.
AUX B
SUP N.O.
C.
Aux relay does not switch states with a Trouble condition
Aux relay switches states with a Trouble condition
Only one sensor is connected the Power Board
Two sensors are connected to the Power Board
Provides a Trouble condition ( terminals 3 and 14 open) when Sensor Housing cover has
been removed or has been secured improperly for more than 7 minutes
Provides an instantaneous Trouble condition(terminals 3 and 14 open) upon cover removal
18
3
N.O.
7
CAUTION
5
[10] deTecTor STaTuS indicaTion
Detector Staus is indicated by the LED sensor, and the correcsponding LED on
the power board. The power board has two separate LED’s to indicate the sta-
tus of each sensor connected to it. Refer to Table 3 on page 8 for more details.
[11] inTerconnecTion (muLTiPLe fan ShuT doWn)
When using the interconnect feature, an alarm from an initiating device will
switch the Aux Relays on the other devices interconnected.
FOR FAN SHUTDOWN, ETC. (NOTE 2)
ALARM
INITIATION
CONTACTS
(NOTE 4)
N.C.
LAST DETECTOR IN THE LOOP
16
SUPERVISORY CONTACTS
POWER INPUTS (NOTE 1)
SUP C.
AUXILIARY CONTACTS
AUX A
9
C.
14
6
24V
(NOTE 3)
N.O.
10
5
4
17
OR
N.C.
Features
8
ALARM C.
ALARM N.O.
SUP N.O.
AUX B
C.
3
18
N.O.
7
MANUFACTURER
EOL RESISTOR
SPECIFIED BY
PANEL
I56-3936-002R
H0558-10