D4240 System Sensor, D4240 Datasheet - Page 7

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

[13.1] deTecTor SenSor
1.
2.
3.
4.
5.
6.
7.
8.
[13.2] reinSTaLLaTion
1.
2.
3.
4.
figure 10. deTecTor SenSor exPLoded VieW:
NOTICE: If any unitary packaged air conditioning units are run during the
drywall installation phase of any building under construction to accelerate
the drying of joint compound, the subsequent sanding of those drywall joints
and resulting dust may compromise the sensor heads in duct smoke detectors.
To avoid this condition it is recommended that the sensor heads be removed
during the construction phase.
For additional information visit www.systemsensor.com for a detailed techni-
cal bulletin.
[14] SenSor rePLacemenT (ParT no. 2d51)
1.
2.
3.
[15] oPTionaL acceSSorieS
[15.1] rTS451/rTS151/rTS451keY/rTS151keY remoTe TeST
STaTion
The RTS451/RTS151/RTS451KEY/RTS151KEY Remote Test Station facilitates
test of the alarm capability of the duct smoke detector as indicated in the
RTS451/RTS151/RTS451KEY/RTS151KEY manual. The D4240 duct smoke de-
tector can be reset by the RTS451/RTS151/RTS451KEY/RTS151KEY. To install
the RTS451/RTS151/RTS451KEY/RTS151KEY, connect the device as shown in
Figure 13; wire runs must be limited to 25 ohms or less per interconnecting
wire. If a system control panel is used, the panel itself may require testing.
[15.2] SSk451 muLTi-SignaLing acceSSorY
The SSK451 Multi-Signaling accessory combines a sounder feature with a key ac-
tivated test and reset function. Green, amber and red LEDs provide a visual indi-
cation of power, trouble, and alarm respectively. An optional strobe (PS24LOW)
with a smoke lens can be added to conform to the codes of certain jurisdictions.
To install the SSK451, connect the device as shown in Figure 14.
SS-300-022
Remove the sensor to be cleaned from the system.
Remove the sensor cover by pulling outward on each of the four removal
tabs that hold the cover in place. See Figure 10.
Vacuum the screen carefully without removing it. If further cleaning is
required continue with Step 4, otherwise skip to Step 7.
Remove the chamber cover/screen assembly by pulling it straight out.
Use a vacuum cleaner or compressed air to remove dust and debris from
the sensing chamber.
Reinstall the chamber cover/screen assembly by sliding the edge over the
sensing chamber. Turn until it is firmly in place.
Replace the cover using the holes for the LEDs for alignment and then
gently pushing it until it locks into place.
Reinstall the detector.
Reinstall the detector in its housing.
Restore system power.
Perform Detector Check, Section 12.3.
Notify the proper authorities testing has been completed and the smoke
detector system is back in operation.
Remove the sensor head by rotating counterclockwise.
Pull gently to remove it.
To replace the sensor head, align the mounting features and rotate clock-
wise into place.
COVER
REMOVAL
TABS
SENSOR
CHAMBER
SENSING
CHAMBER
COVER AND
SCREEN
SENSOR
COVER
H0584-00
7
figure 11. Wiring diagramS for oPTionaL acceSSorieS:
figure 12. Wiring diagram for d4240 To aPa151 or aPa451:
figure 13. Wiring diagram for d4240 To rTS451/rTS151/rTS-
451keY/rTS151keY:
figure 14. Wiring diagram for d4240 To SSk451:
15.3 rTS2/rTS2-aoS muLTi-SignaLing acceSSorY
The RTS2 and RTS2-AOS multi-signaling accessories are designed for use with
InnovairFlex 4-wire conventional duct smoke detectors only. The accessory
has two bicolored LEDs that indicate the sensor status of up to two connected
duct smoke detectors. The key switch on the unit can be used to select a con-
nected duct detector sensor (either sensor1 or sensor 2), and the selected sen-
sor can be tested or both sensors can be reset simultaneously using the test/
reset button. LED status indications include: Standby (green blink), Trouble
(amber), Maintenance (amber blink) and Alarm (red).
With the key switch selected, there is also the capability of obtaining a sen-
sitivity measurement of the selected sensor using the SENS-RDR sensitivity
reader (sold separately).
figure 15. Wiring diagram:
FIELD
INSTALLED
JUMPER
ALARM
AUX OUT –
RTS451/RTS451KEY
DUCT DETECTOR
(GREEN LED) POWER
NOTE: WIRING DIAGRAM SHOWN IS FOR D4240 4-WIRE DUCT SMOKE
DETECTOR SYSTEM EQUIPPED WITHOUT A CONTROL PANEL.
NOTE: A TROUBLE CONDITION IS INDICATED
BY LOSS OF GREEN LED
(GREEN LED)
FOR RTS451KEY ONLY WITHOUT A CONTROL PANEL
(RED LED) ALARM
D4240
(RED LED)
FIELD
INSTALLED
JUMPER
FOR
TEMPORAL
PATTERN
APA151/451
NOTE: WIRING DIAGRAM SHOWN IS FOR D4240 4-WIRE DUCT SMOKE
POWER
NOTE: If polarity of Acc. (+) and Acc. (—) are reversed,
an Amber LED on sensor 2 of the duct smoke detector
power board will exist indicating a trouble condition.
ALARM
D4240
AUX
AUX
ACC
ACC
TEMPORAL SELECT
DETECTOR SYSTEM EQUIPPED WITHOUT A CONTROL PANEL.
COMMON
15
20
ALARM SIGNAL
ALARM SIGNAL
SSK451
SUP. SIGNAL
(+)
(+)
(-)
(-)
COMMON
(OPTIONAL) AUDIO
POWER +
POWER –
RESET
2
4
1
5
3
6
TEST
(+)
(–)
MHR/MHW
ALERT
1
2
3
1
5
6
3
2
1
8
7
4
12
10
19
20
15
11
9
1
2
+
–
10
19
20
12
15
11
10
19
20
12
15
9
1
2
+
–
11
9
1
2
+
–
ALARM
AUX OUT –
AUX OUT +
AUX OUT –
ALARM
R TEST
R RESET
ACC +
ACC –
DUCT DETECTOR
AUX OUT +
AUX OUT –
ALARM
R TEST
R RESET
ACC +
ACC –
AUX OUT +
AUX OUT –
ALARM
R TEST
R RESET
ACC +
ACC –
RTS2/RTS2-AOS
D4240
NO
7
D4240
D4240
D4240
19
(+)
(+)
18
17
16
14
13
(-)
(-)
7
8
6
3
5
4
AUX OUT +
15
20
INSTALLED
AUX
ACC
ACC
AUX
18
17
16
13
18
13
JUMPER
14
17
16
14
7
8
6
3
5
4
8
6
3
5
4
7
FIELD
SUP, NO
SUP, C
RA400Z(OPTIONAL)
FIELD
INSTALLED
JUMPER
REMOTE (LED)
ANNUNCIATOR
FIELD
INSTALLED
JUMPERS
(+)
(–)
SUP, NO
SUP, C
SUP, NO
SUP, C
I56-3936-002R
RED
H0584-15
H0582-24
H0583-18
H0626-03
H0554-1