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Smoke Detector Operation and Application
The closer/holder unit includes a 4-wire, photoelectric type smoke
detector. It provides: smoke detection, door holder latch control, N.O.
alarm contact, N.C. supervisory contact and interconnection to other
smoke detectors. Field option: one form C auxiliary contact (cut jumper
wire between 11 and 12).
Terminal Inputs and Outputs
•
24VDC input power is applied to terminals 3 (-) and 14 (+) by the
adjacent circuit board. Red LED flashes every 8 seconds
•
Terminals 1 and 2 provide a normally open (alarm) contact. This
contact closes when smoke is detected. Red LED illuminates
continuously
•
Terminals 5 and 13 provide a normally closed supervisory (trouble)
contact. This contact opens when power is lost to the detector
circuity. Red LED stops flashing
•
Terminals 6 and 9 provide rectified, unfiltered 24VDC power to the door
holder. In an alarm condition, power is removed and the door closes
•
Terminals 7 and 8 provide rectified, unfiltered 24VDC to auxiliary
devices when the detector alarms
•
Terminal 10 is rail + output. It is a continuous, rectified, unfiltered
24VDC used for remote detector interconnect applications
•
Terminals 8, 9 and 10 may be field configured to a dry form contact
by cutting jumper between terminal 11 and 12. Terminal 10 is
Common, 9 is N.C. and 8 is N.O. If this is done, Aux+ is lost;
latch power must be supplied by a separate source
•
Terminals 4 and 15 provide interconnections to other detectors (See
diagram Pg. 4). Up to five smoke detectors may be interconnected.
When a single detector goes into alarm, terminal 15 goes high and
all interconnected smoke detectors will release their doors. The unit
that initiated the alarm will have its LED on. The other interconnected
units' LEDs will flash as normal. Refer to interconnection wiring
diagram for connections
Detector Specifications
(Part #63-3210, Revision D or higher)
•
Type: Photo-Electric Smoke Detector complies with
UL 228 and UL 268 standards
•
Power Requirements: 24VDC +/- 10%
•
Nominal Sensitivity: 2.325 +/- 1.055%/FT.
•
Contact Ratings:
Alarm and/or accessory (Resistive Load):
2.0 Amps Max. @ 24VDC
0.6 Amps Max. @ 120VAC
Trouble Contact (Resistive Load):
0.5 Amps Max. @ 24VDC
See IMPORTANT NOTE AT END OF PAGE 7
Copyright © 2008 SARGENT Manufacturing. All rights reserved.
2
Reproduction in whole or in part without the express written
permission of SARGENT Manufacturing is prohibited.
A7699C
Connection List
Function
24VDC input
Alarm contacts
Latch +
Latch -
Aux +
Aux -
Interconnect +
Interconnect -
Trouble contacts
+24VDC output (unfiltered) 10
NOTE: Terminals 4, 6 and 7 are same point
15
7
14
6
13
5
12
4
11
3
10
2
9
1
8
Terminal
3 (-), 14 (+)
1, 2
9
6
8
7
15
4
13, 5
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