Dormakaba 1856 HT SD User manual

1856 HT SD, 1856 SFT SD
Surface applied door closer
HT (stnd track) < 2” frame face with smoke detector
SFT (swing free track) < 2” frame face with smoke detector
Installation instructions
08220880 – 03-2020
| EN |

21800 Closer 03-2020
08220880
dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions Table of Contents
Table of contents
1 Technical specifications 3
1.1 Overview 3
1.2 Tools recommended 3
2 Installation instructions 4
2.1 Overall 4
2.2 Install track 5
2.3 Install closer (regular mount) 6
2.4 Install closer (<2” frame face mount) 6
2.5 Smoke detector attachment 6
2.6 Secure arm 7
2.7 Swing free track mount (SFT) 8
3 Adjustments 9
3.1 Adjust closing speeds: sweep, latch, backcheck,
delayed actions 9
3.2 Set the hold open 9
4 Wiring 10
4.1 Electrical specifications 10
4.2 Power supply 120 VAC, 50/60 HZ 11
4.3 Power supply 24 V AC/DC 11
4.4 Power supply 24 V AC/DC with
remote detectors 12
4.5 ON/OFF switch (optional) 12
4.6 Wire gauge 13
4.7 SD-2 detector to main solenoid connection 14
4.8 SD-2 detector to auxiliary solenoid connection 14
4.9 Solenoid attachment to UL/ULC listed
alarm control panel 14
4.10 SD-2 detector interconnection 15
4.11 SD-2 detector to remote area detector 16
4.12 SD-2 detector to audible signal appliance 16
4.13 SD-2 detector to remote alarm indicator lamp 17
4.14 Alarm initiation wiring 4 wire
style B (Class B) & 6 style D (Class A)* 17
5 Final set up 19
5.1 Detector sensitivity test (ULC required only) 19
5.2 Check connections 19
5.3 Engage hold open 19
5.4 Reset detector 19
6 Maintenance 20
6.1 Maintaining the detector 20
5.5 Unit testing 20
5.6 Install covers 20
6.2 Measure and record test voltage 21
6.3 Vacuum detector 21
6.4 Testing (continued) 22

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer 3
Technical specifications
1 Technical specifications
. Overview
Each 1856 HT SD & 1856 SFT SD unit contains a
door closer, hold open solenoid and a smoke
detector .
The unit can be used as a single installation or as
a series of devices. When the units are wired
together in a run, up to 5 may be interconnected.
Interconnections are accomplished through
terminals #4 and #15 resulting in all alarming
when any one unit senses smoke. In turn, all
associated hold open solenoids are de-energized.
Within any run smoke detecting units it is
permissible to form as many interconnected
series as the total power supply amperage will
allow; but again no more than 5 can be
interconnected.
Any unit with a smoke detector can be connected
to a non-smoke detector unit, or a remote
detector, or both. It can be a single installation
or part of any of the multiple arrangements
described above. A non-smoke detector solenoid
is a slave to the main unit de-energizing when the
main does. Single or group installations can be
connected to the alarm initiation circuit of a
compatible UL/ULC listed fire alarm control 4 or
6 wire configuration panel.
Additional functions are provided to separately
power the hold open solenoids directly from the
alarm control panel or remotely from an alarm
indicator lamp.
ATTENTION!!! Read the entire instruction sheet
prior to installing and refer to NFPA 72E.
Standards may be obtained from THE NATIONAL
FIRE PROTECTION ASSOCIATION in
Batterymarch Park, Quincy, Massachusetts,
02169.
Please make sure you have the tools listed plus
make sure you have the correct model unit and
hand designation per your application.
CAUTION: Sex nuts are required for attachment
of components to unreinforced, wood or plastic
faced composite type fire doors, unless an
alternative method is identified in the individual
door manufacture’s listings. Make sure door
efficiently operates prior to installing the closer.
When Installing main arm attachment observe
directions closely. Confirm dead stop degree prior
to door and frame preparations.
. Tools recommended
Drill bits: #2 Phillips screwdriver
No. 7 drill bit & drill or 13/64”
drill bit
3/16” slotted head screwdriver
1/4-20 tap & holder M5 hex key
1/2” box wrench #3 cross point screwdriver
10” adjustable wrench
Table 

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer
4
Closer overall
Fig.
Follow included template to properly prepare
door and frame for all accessories of the closer
installation.
Know the swing of the door which is being
installed prior to installation.
Make sure door efficiently operates prior to
installing closer.
Verify closer spring size prior to installation. See
"Size selection chart" on page 3.
. Overall
2 Installation instructions
Right hand installation Left hand installation
Part Qty
Cover 1
Cover screws 2
Track arm 1
Track 1
Track end cap 2
1856 unit (HT or SFT - LH/RH) 1
Combo screws 5
Track flat head wood screws 2
Track flat head machine screws 2
Hex washer head screw (HT only) 1
Rubber stop 1
Smoke detector
Standoffs
Standoff screws
Free Swing Unit Parts Qty
Socket head cap and washer 1
Bushing 1
Anti friction washer 2
Sweep arm 1

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer 5
Track
Fig.
. Install track
2.2.1 Remove the cover (1) by unscrewing the two Phillips screws (2).
Right hand installation Left hand installation
2.2.2 Prepare door and frame using the template provided.
2.2.3 Mount the track (4) by inserting the rubber block (10) into the
track. Insert the track arm (3) into the track. Insert 2 end caps (5)
into both ends of the track. Attach track to the door by fastening
track screws (8) tightly and securely.
1
2

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer
6
Install closer
Smoke detector attachment
Fig.
. Install closer (regular mount)
Right hand installation Left hand installation
2.3.1 Prepare door and frame using the template
provided.
2.3.2 Attach unit (6) to frame with 5 combo screws
(7).
. Install closer (<” frame face mount)
Fig.
Right hand installation Left hand installation
2.4.1 Prepare door and frame using the template
provided. Attach unit (6) to frame with 5 combo
screws (7).
. Smoke detector attachment
Fig.
13
12
11
2.5.1 Insert five standoffs (12) into mounting plate.
Fasten detector (11) with five screws (13)
provided.
12
11
13

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer 7
Arm
. Secure arm
Fig.
2.6.1 Turn sweep and latch valve clockwise until snug
(closed).
Preload pinion:
2.6.2 With the door
closed, place
wrench on pinion
square and
rotate per
illustration until
it aligns with the
square hole in
the arm (approx.
45 degrees).
Right hand installation Left hand installation
Hold open track
mount:
2.6.3 Attach main
arm (3) to
pinion square,
secure with hex
head washer
screw (9)
tightly .
Note: This step will keep the pinion
square from rotating while you are
attaching the track arm or free
swing sweep arm.
Pinion square
3
9

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer
8
Free swing track (FST) mount
. Swing free track mount (SFT)
Fig.
2.7.1 After rotating the pinion square (step 2.6.2)
attach sweep arm (12) to pinion square as
shown. Insert bushing (10) into track arm’s (3)
square hole. Apply two anti-friction washers (11)
on both sides of the track arm, secure tightly
with socket head cap screw and washer (9).
Right hand installation
Left hand installation

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer 9
Adjustments: closing speeds
Adjustments: hold open
Be sure closer has appropriate spring
power prior to making any closer speed
adjustments.
Door should close in 3 to 6 seconds from
90 degrees.
Do not back valves out beyond closer
casting surface.
Check closing sweep (S) and latch (L) speed; adjust
as necessary.
Backcheck position will advance approximately 15
degrees by placing position valve in the “on” position
(fully clockwise).
Check delay action (DA) function if supplied.
Ball bearing hinges or pivots should always be used.
3 Adjustments
. Adjust closing speeds: sweep, latch, backcheck, delayed actions
Fig.
. Set the hold open
Fig.
3.2.1 Open the door to factory preset hold open
position at 90 degree approximately.
3.2.2 Loosen cam screw so the cam moves freely. (Fig.
1)
3.2.3 Move door to the required hold open position.
3.2.4 Turn cam so that the cam lobe is resting against
the roller in the plunger. Tighten cam screw
securely. (Fig. 2)
CAUTION: Be sure cam teeth mesh with mating
part
Closer size Max door
weight (lbs)
Door width Full turns
Interior Exterior
2 100 2'6" --- -6
3 125 3' 2’6” 0
4 150 3'6" 3’ +8
5 200 4' 3’6” +16
6 250 --- 4’ +24

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 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.
. 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
SOLENOID + (POS) 9 (N.C.)
SOLENOID - (NEG) 6
REMOTE ALARM INDICATOR LAMP + (POS) 8 (N.O.)
REMOTE ALARM INDICATOR LAMP - (NEG) 7
INTERCONNECT + (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
29
103
4
5
6
7
15
14
11
Fig.
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).

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer 11
Wiring
120 VAC, 50/60 HZ: Connect the 120 VAC incoming voltage wires to the primary wires of the transformer.
Connect the secondary transformer wires to terminals #3 and #14 of the detector module. This connection is
not polarity dependent.
Secondary
Transformer
Wires
13
12
18
29
10
3
4
5
6
7
15
14
11
Primary
Transformer
Wires
120VAC
Power
Input
Step
Down
Transformer
24V AC/DC: The step down transformer is not used in this connection. Connect 24V AC/DC power to
terminals #3 and #14 on the detectors. These connections are not polarity dependent. If the unit is
connected to a second unit, connect terminal #3 of the first unit to terminal #3 of the second unit and
connect terminal #14 of the first unit to terminal #14 of the second unit. Continue this process for any
subsequent units to be powered from the same power supply.
SD-2 SD-2
SD-2
13
12
18
29
10
3
4
5
6
7
15
14
11
13
12
18
29
10
3
4
5
6
7
15
14
11
13
12
18
29
10
3
4
5
6
7
15
14
11
(3) (2) (1)
24 VAC/DC
power supply
+
-
SD-2
. Power supply  VAC, / HZ
. Power supply  V AC/DC
Fig.
Fig.
#3
#14
#3
#14
#3
#14
#3
#14

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer
12
Wiring
24V AC/DC with remote detectors: The step down transformer is not used in this connection. Perform wiring
connections as illustrated below. Additional units are wired in the same manner as unit #2. Installations using
a combination of SD-2 modules with and without remote area detectors can be wired accordingly by
substituting the wiring diagram section from unit #1, #2, or #3 in step 4.11 instead of unit #1, #2, or #3
shown below with remote detector. The vertical dashed lines indicate where one diagram would be
exchanged for another.
NOTE: Input voltage must match detector voltage. Detector voltage 24V AC/DC.
SD-2
1
SD-2 SD-2
-
+
-
+
-
+
+
-
13
12
18
29
10
3
4
5
6
7
15
14
11
13
12
18
29
10
3
4
5
6
7
15
14
11
13
12
18
29
10
3
4
5
6
7
15
14
11
(3) (2) (1) 24 VAC/DC
power input
. Power supply  V AC/DC with remote detectors
Fig.
. ON/OFF switch (optional)
Fig.
1. Wire ON/OFF switch as shown above.
2. Push button will cut power to the hold open
solenoid and the door will close.
3. Pushing button a second time will engage
power to the hold open solenoid allowing the
door to be held open.
4. The push button is accessible by inserting a
small cylindrical object thru the hole small
hole in end cap.
#6
#9
Main solenoid
Optional
ON/OFF
switch
Remote
Detector
Remote
Detector
Remote
Detector
#3
#14
#3
#14
#3
#14

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer 13
Wiring
Wire gauge: The maximum wire gauge for wiring the SD-2 detector module is #18 AWG. The method for
determining wire gauge is given below. NOTE: A minimum of 20.4 VDC must be supplied to each solenoid in
the run.
Power
Supply
No. of
solenoid
(S1)
No. of
solenoid
(S2)
No. of
solenoid
(S3)
No. of
solenoid
(S4)
Wire length
to S1
(D1)
Wire length
to S2
(D2)
Wire length
to S3
(D3)
Wire length
to S4
(D4)
To next hold open
solenoid
S1, S2, S3, etc. are the number of solenoids at each subsequent station. D1 is the distance from the power
supply to the first solenoid station. D2, D3, D4, etc. are the distances from the previous solenoid station to
the next solenoid station in the run. To the determine the correct wire gauge multiply S1 times D1. Add that
quantity to S2 times D2. Repeat the same procedure for each solenoid to test the last unit in the run.
Compare the quantity calculated to the chart below. The calculated value must be less than or equal to the
value corresponding to the appropriate wire gauge.
10 GAUGE-11,788 12 GAUGE-7,407 14 GAUGE-4,669 16 GAUGE-2,997 18-GAUGE-1,843
The procedure described above can be expressed in the following equation: (S1xD1) + (S2xD2) + (S3xD3)
......(SnxDn). The above values correspond to the wire gauge to be used. If the calculated value 1,843 #18
AWG wire can be run and connected directly to the detector module. If the calculated value exceeds 1,843
larger wiring will be required. Since the detector will only accept #18 AWG wire, a wiring splice will be
necessary as illustrated below.
SD-2
NOTE: For ULC installations, 18
gauge wire is required to detector.
#18
13
12
18
29
10
3
4
5
6
7
15
14
11
#18
#16 - #12
#16 - #12
#16 - #12
#16 - #12
. Wire gauge
Fig.

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer
14
Wiring
SD-2
Strip approximately 1/4” of plastic insulation from the end of the two solenoid wires supplied. Connect one
end each of the solenoid wires to terminals 6 & 9 of the SD-2 detector as shown.
13
12
18
29
10
3
4
5
6
7
15
14
11
Main solenoid
Main hold
solenoid
Auxiliary solenoid
13
12
18
29
10
3
4
5
6
7
15
14
11
NOTE: Make this connection the same time as the main hold open
solenoid connection. Strip approximately 1/4” of plastic insulation
from the ends of the wires. Run wires from the solenoid of the
auxiliary unit. Connect one (1) of each wire into terminals #9 and #6
of the SD-2 smoke detector.
UL/ULC listed
alarm control
panel
Solenoid
Power In
. SD- detector to main solenoid connection
. SD- detector to auxiliary solenoid connection
. Solenoid attachment to UL/ULC listed alarm control panel
Fig.
Fig.
Fig.
#6
#9
Some applications may require input power to the hold open solenoid to be supplied through a UL/ULC listed
alarm control panel so the hold open solenoid functions separately from the internal detector module. This
application requires the alarm contacts of the SD-2 detector and any remote detectors to be connected to the
alarm contacts of the control panel. An alarm indication to the panel results in the loss of power to the hold
open solenoids in the related zone, which allows the doors to close. Wire main solenoid to alarm control panel
as illustrated.
#6
#9

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer 15
Wiring
1. Up to (5) SD-2 detectors, with or without connection to an auxiliary unit or remote area detector
may be interconnected. This limitation applies only to interconnected units and assumes a power supply large
enough to handle this load if the power supply is common to all units interconnected. Separate power
supplies may be used for each SD-2 detector while permitting the units to be interconnected.
2. For units without connection to remote detectors, connect terminal #15 (+) between the units to be
interconnected. Connect terminal #4 (-) between the units to provide a common for the interconnection.
Additional units are wired in the same manner as unit #2 but no more than five (5) units can be
interconnected.
SD-2 SD-2 SD-2
13
12
18
29
10
3
4
5
6
7
15
14
11
13
12
18
29
10
3
4
5
6
7
15
14
11
13
12
18
29
10
3
4
5
6
7
15
14
11
(2)(3) (1)
2a. For units used in conjunction with remote are detectors, complete wiring connections as illustrated
below. Heed caution note in SD-2 DETECTOR TO REMOTE AREA DETECTOR section of instruction sheet.
Additional units are wired in the same manner as unit #2 but no more than five (5) units can be
interconnected. Installations using a combination of SD-2 detector modules with or without remote area
detectors can be wired accordingly by substituting the wiring diagram from unit 1, 2, or 3 in step 2 above, for
unit 1, 2, or 3 below. The vertical dashed lines indicate where one (1) diagram would be exchanged for
another.
SD-2 SD-2 SD-2
.
13
12
18
29
10
3
4
5
6
7
15
14
11
(2)
(3) (1)
13
12
18
29
10
3
4
5
6
7
15
14
11
13
12
18
29
10
3
4
5
6
7
15
14
11
C
NO
C
NO
C
NO
Remote
Detector
Remote
Detector
Remote
Detector
. SD- detector interconnection
Fig.
#4
#15
#4
#15
#4
#15
#4
#15
#10
#4
#15
#10
#4
#15
#10
Alarm relay Alarm relay Alarm relay

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer
16
Wiring
A remote open area detector can only be connected to a unit whose trouble relay contacts (#5 & #13) are
connected in a circuit for the purpose of obtaining an audible trouble signal in the event of a circuit fault. In the
event that the unit is used for releasing service only, the trouble contacts are connected to the trouble circuit of a
UL/ULC listed alarm control panel. This condition is satisfied by the four (4) and six (6) wire supervisory
connections in the alarm initiation wiring section. Perform wiring connections as illustrated below. NOTE: The
SD-2 is wired as the E.O.L. (end of line) device for the remote detector. Therefore, it must act as the last item in
the loop.
SD-2
13
12
18
29
10
3
4
5
6
7
15
14
11
24V AC/DC
Power Input
Remote
Detector
UL/ULC listed
audible signal
appliance
or control unit
1. Connect terminals #5 & #13 of a
singular unit directly to a UL/ULC
listed audible signal appliance or
alarm control panel.
SD-2
2. Installations with multiple
units in a run must be
connected to a UL/ULC listed
audible signal appliance or
alarm control panel as
illustrated below.
13
12
18
29
10
3
4
5
6
7
15
14
11
UL/ULC listed
audible signal
appliance
or control unit
SD-2 SD-2 SD-2
UL/ULC listed
audible
signal appliance
or control unit
13
12
18
29
10
3
4
5
6
7
15
14
11
13
12
18
29
10
3
4
5
6
7
15
14
11
13
12
18
29
10
3
4
5
6
7
15
14
11
. SD- detector to remote area detector
. SD- detector to audible signal appliance
Fig.
Fig.
NO
C
#3
#13
#5
#14
#5
#13
#5 #13
#5 #13
#5 #13

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer 17
Wiring
Connect the positive wire of the remote alarm indicator lamp to terminal #8 of the detector module. Connect
the negative terminal of the indicator lamp to terminal #7 of the SD-2 detector.
SD-2
Remote
alarm
indicator
lamp
13
12
18
29
10
3
4
5
6
7
15
14
11
1. Make all connections as outlined previously for all units required by the job specifications.
2. Make all signal initiating connections as illustrated in the appropriate figure below. Note wiring differences
for units with remote detectors vs. units without remoe detectors. Dashed lines to return loop represent
wires required for six (6) wire applications. These wires are omitted in four (4) wire applications.
3. Connections to only one (1) SD-2 are shown below.
SD-2 SD-2
-
+
+
-
+
-
+
-
13
12
18
29
10
3
4
5
6
7
15
14
11
13
12
18
29
10
3
4
5
6
7
15
14
11
Connections for
six (6) wire instllation
Connections for
six (6) wire instllation
Return
loop
UL/ULC
listed
initiating
circuit
Return
loop
UL/ULC
listed
initiating
circuit
Remote
detector
*EOL *EOL
* EOL used in 4 wire applications only
CONTINUED ON NEXT PAGE
. SD- detector to remote alarm indicator lamp
. Alarm initiation wiring  wire style B (Class B) &  style D (Class A)*
Fig.
Fig.
#8
#7
#2
#1
#13
#5
#2
#1
#13
#5

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer
18
Wiring
4. Connections for two (2) SD-2 detectors would consist of detector (1) in figure below connected to
detector (3) in the same manner as it is shown connected to detector (2). Detector (2) would be deleted.
5. More than three (3) SD-2 detectors are connected by inserting additional units with connections as
shown for unit 2. The last unit in the run must be connected in the same manner as unit 3.
SD-2
15
14
13
12
11
10
9
8
SD-2
15
7
5
14
13
12
11
10
9
1
6
4
3
2
8
SD-2
15
7
5
14
13
12
11
10
9
1
6
4
3
2
8
SD-2
15
7
5
14
13
12
11
10
9
1
6
4
3
2
8
SD-2
15
7
5
14
13
12
11
10
9
1
6
4
3
2
8
SD-2
15
7
5
14
13
12
11
10
9
1
6
4
3
2
8
*EOL
*EOL
-
+
+
-
+
-
+
-
13
12
18
29
10
3
4
5
6
7
15
14
11
13
12
18
29
10
3
4
5
6
7
15
14
11
13
12
18
29
10
3
4
5
6
7
15
14
11
13
12
18
29
10
3
4
5
6
7
15
14
11
13
12
18
29
10
3
4
5
6
7
15
14
11
13
12
18
29
10
3
4
5
6
7
15
14
11
(3) (2) (1)
Return
loop
UL/ULC
listed
initiating
circuit
Return
loop
UL/ULC
listed
initiating
circuit
Connections for
six (6) wire instllation
Connections for
six (6) wire instllation
(3) (2) (1)
Remote
detector
Alarm relay
Remote
detector
Alarm relay
Remote
detector
Alarm relay
* EOL used in 4 wire applications only
6. In four (4) wire installations, it is the responsibility of the installer to supply and connect the E.O.L.
resistor specified by the fire alarm control panel used. The E.O.L. resistor is only installed in the first unit
of the run as illustrated.
Fig.
#2
#1
#13
#5
#2
#1
#13
#5
#2
#1
#13
#5
#2
#1
#5
#2
#1
#5
#2
#13
#2
#1
#13
#5

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer 19
Final setup
5 Final set up
. Detector sensitivity test (ULC required only)
Fig.
Voltage output terminals are provided to measure the sensitivity of the smoke detector. With power applied to
the detector, connect a volt meter to the two test terminals. The normal range is between 1.27 - 3.38 VDC.
Sensitivity test
terminals
After installation is completed, check all connections. The LED will blink every seven (7) to ten (10) seconds to
indicate the unit is operating properly.
LED
. Check connections
Fig.
Open door so slide shoe engages with hold open
assembly.
To test the detector, insert a small screwdriver into the
slot in the light pipe of the detector. Turn counter-
clockwise and hold for 10 seconds. The LED should
remain continually red and allow the door to close.
. Engage hold open
Fig.
Turn light pipe clockwise to reset detector. The LED will
go off. Turn the light pipe to the normal position and
the unit will resume blinking every second (7) to ten (10)
seconds to indicate that it is reset and functioning
properly.
. Reset detector
Fig.

dormakaba 1856 HT SD, 1856 SFT SD Installation Instructions
08220880 03-20201800 Closer
20
Final setup
Maintenance
. Install covers
Fig.
IMPORTANT: THE UNIT MUST BE TESTED AFTER THE INSTALLATION, BY THE
END USER, TO ASSURE THAT THE DOOR CLOSER UNITS FUNCTION PROPERLY
WHEN THE ALARM SYSTEM IS ACTIVATED. THE ENTIRE SYSTEM MUST ALSO
BE TESTED PERIODICALLY AFTER THE INITIAL INSTALLATION TEST, IN
CONJUNCTION WITH THE TESTING OF THE FIRE ALARM SYSTEM. THE END
USER IS ALSO RESPONSIBLE FOR THE ADJUSTMENTS AND MAINTENANCE
TO RETAIN THE SYSTEM IN WORKING ORDER.
. Unit testing
Fig.
6 Maintenance
. Maintaining the detector
Fig.
The SD-2 detector has been designed to be as maintenance-free as possible.
Normal air-borne dust, however, can accumulate in the detector sensing chamber
and cause it to become more sensitive. All detectors must be tested and cleaned
at least once a year. Detectors in dusty environments must be tested and cleaned
more often. Detectors must also be tested and cleaned immediately after a fire.
Failure to maintain detectors may result in needless false alarms.
Reattach cover (1) with two screws (2).
1
2