dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880
03-2020
1800 Closer
10
Wiring
4
Wiring
DISCONNECT ALL POWER BEFORE INSTALLATION BEGINS TO PREVENT ELECTRICAL SHOCK AND
COMPONENT DAMAGE. INSTALLATION MUST BE PREFORMED BY TRAINED EXPERIENCED SERVICE PERSON.
WIRE THE UNITS ACCORDING TO BUILDING AND SYSTEM REQUIREMENTS.
OBSERVE ALL APPLICABLE CODES.
4.1 Electrical specifications
Voltage input
24 VDC +10% - 15%
24 VAC +10% - 15%
120 VAC +10% - 15% to transformer
Maximum input current
@24 VDC- 105 mA (1 solenoid), 275 mA (2 solenoids)
@24 VAC- 185 mA (1 solenoid), 350 mA (2 solenoids)
@120 VAC - 50/60Hz - 40 mA (1 solenoid), 70 mA (2 solenoids)
Maximum output to remote alarm indicator lamp
300 mA
Contact ratings
Alarm and or accessory contacts:
1.25 A @ 24 VDC or 0.3 A at 120 VAC resistive maximum. (Alarm and/or accessory
contacts)
Trouble contacts: 500 mA at 24 VDC resistive maximum.
SD-2
Detector control list
Function
Terminal
AC/DC 24V INPUT
3(-), 14(+)
ALARM CONTACTS
1, 2
SO (POS)
9 (N.C.)
SOLENOID - (NEG)
6
REMOTE ALARM INDICATOR LAMP + (POS)
8 (N.O.)
REMOTE ALARM INDICATOR LAMP - (NEG)
7
INTERC (POS)
15
INTERCONNECT - (NEG)
4
TROUBLE CONTACTS (NORMALLY CLOSED)
5, 13
24 VDC OUTPUT (UNFILTERED)
10
IF JUMPER WIRE J11/J12 IS CUT, TERMINALS 8, 9 AND 10 CHANGE TO FORM
C RELAY CONTACTS, RAIL OUTPUT IS LOST, AND HOLD OPEN SOLENOIDS
MUST BE POWERED FROM A SEPARATE SOURCE. CONSULT FACTORY IF
REMOTE DETECTORS ARE USED IN THIS APPLICATION.
LED &
TEST
13
12
1
8
2
9
10
3
4
5
6
7
15
14
11
Fig.10
Optional 120V Transformer
Yellow wires go to terminal block.
120V in-coming power
Optional Surface Wiring
Optional surface wiring must be specified when the unit
is ordered. The surface wiring bracket is added for
installation of the 1/2” electrical conduit connector and
the cover is notched to accept the conduit.
This unit includes a 4-wire, photoelectrical type smoke detector. It provides: smoke detection, door
hold open control, normally open (N.O.) alarm contacts, normally closed (N.C.) supervisory contact
and interconnection to other smoke detectors. Field option: one form C relay (cut jumper wire as
noted below). See following pages for alternate connection schematics.
Note:
•
Terminals 4, 6, & 7 are same point.
•
Form C relays are SPDT and break the connection with one throw
before making contact with the other (break-before-make).
