Nailor 1210SS User manual

SCHEDULE TYPE:
PROJECT:
ENGINEER:
CONTRACTOR:
DATE B SERIES SUPERSEDES DRAWING NO.
5 - 7 - 12 1200 3 - 21 - 11 1210SS-1
STAINLESS STEEL SMOKE DAMPER
AIRFOIL BLADE • HIGH PERFORMANCE
ULTRA-LOW LEAKAGE • LOW PRESSURE DROP
MODELS: 1210SS AND 1211SS (TYPE A)
Nailor Industries Inc. reserves the right to change any information concerning product or pricing without notice.
For installation instructions, see IOM-SDINST.
Dimensions are in inches (mm).
The 1210SS Series dampers are ideal for high humidity, mildly
corrosive or, with optional Type 316 construction, more severe
environments where building codes require a leakage rated smoke
damper as part of a static smoke control or dynamic smoke
management system.
The 1210SS Series has been especially designed and tested to
offer premium performance. The 1210SS Series provides the
lowest leakage class available and is qualified for vertical or
horizontal installation with airflow in either direction. Airfoil blade
design and elimination of blade sills, top and bottom, provide
lowest pressure drop. Unique inter-locking double skin blade
design eliminates combustible blade seals and provides flame and
smoke seal under fire conditions.
STANDARD SPECIFICATION:
Frame: 5" x 7/8" x 16 ga. (127 x 22 x 1.6) stainless steel
hat channel.
Blades: 14 ga. (2.0) equivalent stainless steel formed airfoil on
5 1/2" (140) centers. Opposed action.
Linkage: Concealed in frame. 12 ga. (2.7) stainless steel.
Bearings: 1/2" (13) dia. sintered stainless steel.
Axles: 1/2" (13) dia. stainless steel double bolted to blades.
Jackshaft: 1/2" (13) dia. stainless steel.
Jamb Seals: Cambered stainless steel.
Sizes (Damper W x H):
Note: Dampers with duct heights less than 8" (203) require a Type ‘B’
sleeve enclosure (Model 1212SS). Units less than 8" (203) in width only, or
in both width and height, require a Type ‘C’ enclosure (Model 1213SS).
BASE MODEL SELECTION:
❑1210SS With side actuator mounting plate
❑1211SS Standard factory sleeve (caulked to UL requirements)
16" long x 20 ga. (406 x 1.0) (18 ga. for dampers over
84" [2134] in width).
❑1211SS Non-standard sleeve.
Specify _______ length _____ ga.
Available up to 36" (914) in length and 10 through
20 ga. (3.5 through 1.0).
7 3/4"
(197) MAX.
10 3/4"
(273) MAX.
JACKSHAFT
3 15/16"
(100)
CONSTRUCTION TYPE:
❑304 Type 304 Stainless Steel construction (Standard).
❑316 Type 316 Stainless Steel construction (Optional).
LEAKAGE CLASS/ ELEVATED TEMPERATURE:
❑I❑II @ 250°F
DYNAMIC VELOCITY/PRESSURE RATING:
24 2000 fpm @ 4" w.g.
ACTUATOR SELECTION:
❑Electric ❑Pneumatic
ACTUATOR LOCATION:
❑External (std.) ❑Internal (in the airstream)
ACTUATOR FAIL POSITION:
❑Normally Closed (std.) ❑Normally Open
OPTIONS:
❑MLS-300 Position indicator switch pack
CCW
TO
OPEN
5"
(127)
W = NOMINAL DUCT SIZE - 1/4" (6)
H = NOMINAL DUCT SIZE - 1/4" (6)
QUALIFICATIONS:
• UL 555S CLASSIFIED SMOKE DAMPER (File # R9492)
Leakage Class I or II at 250°F elevated temperature.
• Meets NFPA 90A, 92A, 92B, 101 and 105 as well as IBC and
NBC (Canada) Building Code requirements.
• California State Fire Marshal Listing No. 03230-0935:107.
• City of New York MEA# 366-03-M.
• Maximum velocity: 2000 fpm@ 4" w.g.
Velocity/
Pressure
Rating
Elevated
Temp.
°F
Minimum Maximum
Single Section Single Section Multiple Section
Vertical/Horizontal Vertical / Horizontal Vertical/Horizontal
24 250 8" x 8" (203 x 203) 36" x 48"
(914 x 1219)
144" x 96"
(3658 x 2438)

SCHEDULE TYPE:
PROJECT:
ENGINEER:
CONTRACTOR:
DATE B SERIES SUPERSEDES DRAWING NO.
5 - 7 - 12 1200 3 - 21 - 11 1210SS-2
STAINLESS STEEL SMOKE DAMPER
AIRFOIL BLADE • HIGH PERFORMANCE
ULTRA-LOW LEAKAGE
MODEL: 1212SS
(TYPE B SLEEVE ENCLOSURE)
Nailor Industries Inc. reserves the right to change any information concerning product or pricing without notice.
Dimensions are in inches (mm).
FOR DUCTS 8" (203) OR MORE IN WIDTH AND UNDER 8" (203) IN HEIGHT.
The 1210SS Series dampers are ideal for high humidity, mildly
corrosive or, with optional Type 316 construction, more severe
environments where building codes require a leakage rated smoke
damper as part of a static smoke control or dynamic smoke
management system.
The 1210SS Series has been especially designed and tested to offer
premium performance. The 1210SS Series provides the lowest
leakage class available and is qualified for vertical or horizontal
installation with airflow in either direction. Airfoil blade design and
elimination of blade sills, top and bottom, provide lowest pressure
drop. Unique inter-locking double skin blade design eliminates
combustible blade seals and provides flame and smoke seal under
fire conditions.
STANDARD SPECIFICATION:
Frame: 5" x 7/8" x 16 ga. (127 x 22 x 1.6) stainless steel hat channel.
Blades: 14 ga. (2.0) equivalent stainless steel formed airfoil on
5 1/2" (140) centers.
Linkage: Concealed in frame. 12 ga. (2.7) stainless steel.
Bearings: 1/2" (13) dia. sintered stainless steel.
Axles: 1/2" (13) dia. stainless steel double bolted to blades.
Jackshaft: 1/2" (13) dia. stainless steel.
Jamb Seals: Cambered stainless steel.
Sizes (Duct W x H):
Note: Duct sizes less than 8" (203) in width only, or in both width and height,
require a Type ‘C’ enclosure (Model 1213SS).
SLEEVE/ ENCLOSURE SELECTION:
❑1212SS Standard factory sleeve (caulked to UL requirements)
16" long x 20 ga. (406 x 1.0) (18 ga. for dampers over 84"
[2134] in width).
❑1212SS Non-standard sleeve. Specify _______ length _____ ga.
Available up to 36" (914) in length and 10 through 20 ga.
(3.5 through 1.0).
16" (406) STANDARD
5" (127)
8" (203)
STANDARD
'B'
ENCLOSURE
BOTH ENDS
JACKSHAFT
CONSTRUCTION TYPE:
❑304 Type 304 Stainless Steel construction (Std.).
❑316 Type 316 Stainless Steel construction (Opt.).
LEAKAGE CLASS/ ELEVATED TEMPERATURE:
❑I❑II @ 250°F
DYNAMIC VELOCITY/PRESSURE RATING:
24 2000 fpm @ 4" w.g.
ACTUATOR SELECTION:
❑Electric ❑Pneumatic
ACTUATOR LOCATION:
❑External (std.) ❑Internal (in the airstream)
ACTUATOR FAIL POSITION:
❑Normally Closed (std.) ❑Normally Open
OPTIONS:
❑MLS-300 Position indicator switch pack
For installation instructions, see IOM-SDINST.
CCW
TO
OPEN
H =
NOM.
DUCT
SIZE
W = NOM. DUCT SIZE
8" (203)
OVERALL
QUALIFICATIONS:
• UL 555S CLASSIFIED SMOKE DAMPER (File # R9492)
Leakage Class I or II at 250°F elevated temperature.
• Meets NFPA 90A, 92A, 92B, 101 and 105 as well as IBC and
NBC (Canada) Building Code requirements.
• California State Fire Marshal Listing No. 03230-0935:107.
• City of New York MEA# 366-03-M.
• Maximum velocity: 2000 fpm@ 4" w.g.
Velocity/
Pressure
Rating
Elevated
Temp.
°F
Minimum Maximum
Single Section Single Section Multiple Section
Vertical/Horizontal Vertical/Horizontal Vertical/ Horizontal
24 250
8" x 4" (203 x 102)
(Overall damper height is
8" [203])
36" x 7 1/2"
(914 x 191)
144" x 7 1/2"
(3658 x 191)

SCHEDULE TYPE:
PROJECT:
ENGINEER:
CONTRACTOR:
DATE B SERIES SUPERSEDES DRAWING NO.
5 - 7 - 12 1200 3 - 21 - 11 1210SS-3
STAINLESS STEEL SMOKE DAMPER
AIRFOIL BLADE • HIGH PERFORMANCE
ULTRA-LOW LEAKAGE
ROUND DUCT CONNECTION
MODEL: 1213SS (TYPE C SLEEVE ENCLOSURE)
Nailor Industries Inc. reserves the right to change any information concerning product or pricing without notice.
Dimensions are in inches (mm).
The 1210SS Series dampers are ideal for high humidity, mildly corrosive
or, with optional Type 316 construction, more severe environments where
building codes require a leakage rated smoke damper as part of a static
smoke control or dynamic smoke management system.
The 1210SS Series has been especially designed and tested to offer
premium performance. The 1210SS Series provides the lowest leakage
class available and is qualified for vertical or horizontal installation with
airflow in either direction. Airfoil blade design and elimination of blade
sills, top and bottom, provide lowest pressure drop. Unique inter-locking
double skin blade design eliminates combustible blade seals and provides
flame and smoke seal under fire conditions.
STANDARD SPECIFICATION:
Frame: 5" x 7/8" x 16 ga. (127 x 22 x 1.6) stainless steel hat channel.
Blades: 14 ga. (2.0) equivalent stainless steel formed airfoil on
5 1/2" (140) centers.
Linkage: Concealed in frame. 12 ga. (2.7) stainless steel.
Bearings: 1/2" (13) dia. sintered stainless steel.
Axles: 1/2" (13) dia. stainless steel double bolted to blades.
Jackshaft: 1/2" (13) dia. stainless steel.
Jamb Seals: Cambered stainless steel.
Sizes (Duct Diameter):
SLEEVE/ENCLOSURE SELECTION:
❑1213SS Standard factory sleeve (caulked to UL requirements)
16" long x 20 ga. (406 x 1.0) (18 ga. for dampers over
84" [2134] in width).
❑1213SS Non-standard sleeve. Specify _______ length _____ ga.
Available up to 36" (914) in length and 10 through 20 ga.
(3.5 through 1.0).
CONSTRUCTION TYPE:
❑304 Type 304 Stainless Steel construction (Standard).
❑316 Type 316 Stainless Steel construction (Optional).
LEAKAGE CLASS/ ELEVATED TEMPERATURE:
❑I❑II @ 250°F
DYNAMIC VELOCITY/PRESSURE RATING:
24 2000 fpm @ 4" w.g.
'C' ENCLOSURE BOTH ENDS
D –
1/8" (3)
(D –
1/4" (6)
OVER
36"
(914))
16" (406) STANDARD
5" (127)
8" (203)
STANDARD
JACKSHAFT
ACTUATOR SELECTION:
❑Electric ❑Pneumatic
ACTUATOR LOCATION:
❑External (std.) ❑Internal (in the airstream)
ACTUATOR FAIL POSITION:
❑Normally Closed (std.) ❑Normally Open
OPTIONS:
❑MLS-300 Position indicator switch pack
For installation instructions, see IOM-SDINST.
D + 2" (51) (MIN. 8" [203])
D =
NOM.
DUCT
DIA.
D
+
2"
(51)
CCW
TO
OPEN
*
*or 8" (203) min.
QUALIFICATIONS:
• UL 555S CLASSIFIED SMOKE DAMPER (File # R9492)
Leakage Class I or II at 250°F elevated temperature.
• Meets NFPA 90A, 92A, 92B, 101 and 105 as well as IBC and
NBC (Canada) Building Code requirements.
• California State Fire Marshal Listing No. 03230-0935:107.
• City of New York MEA# 366-03-M.
• Maximum velocity: 2000 fpm@ 4" w.g.
Velocity/
Pressure
Rating
Elevated
Temp.
°F
Minimum Maximum
Single Section Single Section Multiple Section
Vertical/Horizontal Vertical/Horizontal Vertical/ Horizontal
24 250
4" (102) dia.
(Overall damper size is
8" x 8" [203 x 203] minimum).
34" (864) dia. 94" (2388) dia.

SCHEDULE TYPE:
PROJECT:
ENGINEER:
CONTRACTOR:
DATE B SERIES SUPERSEDES DRAWING NO.
5 - 7 - 12 1200 3 - 21 - 11 1210SS-4
STAINLESS STEEL SMOKE DAMPER
AIRFOIL BLADE • HIGH PERFORMANCE
ULTRA-LOW LEAKAGE • SQUARE,
RECT. OR OVAL DUCT CONNECTION
MODEL: 1213SS (TYPE C SLEEVE ENCLOSURE)
Nailor Industries Inc. reserves the right to change any information concerning product or pricing without notice.
For installation instructions, see IOM-SDINST.
Dimensions are in inches (mm).
The 1210SS Series dampers are ideal for high humidity, mildly corrosive
or, with optional Type 316 construction, more severe environments where
building codes require a leakage rated smoke damper as part of a static
smoke control or dynamic smoke management system.
The 1210SS Series has been especially designed and tested to offer
premium performance. The 1210SS Series provides the lowest leakage
class available and is qualified for vertical or horizontal installation with
airflow in either direction. Airfoil blade design and elimination of blade
sills, top and bottom, provide lowest pressure drop. Unique inter-locking
double skin blade design eliminates combustible blade seals and provides
flame and smoke seal under fire conditions.
STANDARD SPECIFICATION:
Frame: 5" x 7/8" x 16 ga. (127 x 22 x 1.6) stainless steel hat channel.
Blades: 14 ga. (2.0) equivalent stainless steel formed airfoil on
5 1/2" (140) centers.
Linkage: Concealed in frame. 12 ga. (2.7) stainless steel.
Bearings: 1/2" (13) dia. sintered stainless steel.
Axles: 1/2" (13) dia. stainless steel double bolted to blades.
Jackshaft: 1/2" (13) dia. stainless steel.
Jamb Seals: Cambered stainless steel.
Sizes (Duct W x H):
SLEEVE/ENCLOSURE SELECTION:
❑1213SS Standard factory sleeve (caulked to UL requirements) 16"
long x 20 ga. (406 x 1.0) (18 ga. for dampers over 84"
[2134] in width).
❑1213SS Non-standard sleeve. Specify _______ length _____ ga.
Available up to 36" (914) in length and 10 through 20 ga.
(3.5 through 1.0).
CONSTRUCTION TYPE:
❑304 Type 304 Stainless Steel construction (Standard).
❑316 Type 316 Stainless Steel construction (Optional).
LEAKAGE CLASS/ ELEVATED TEMPERATURE:
❑I❑II @ 250°F
DYNAMIC VELOCITY/PRESSURE RATING: 24 2000 fpm @ 4" w.g.
ACTUATOR SELECTION:
❑Electric ❑Pneumatic
'C' ENCLOSURE BOTH ENDS
D –
1/8" (3)
(D –
1/4" (6)
OVER
36"
(914))
16" (406) STANDARD
5" (127)
8" (203)
STANDARD
JACKSHAFT
ACTUATOR LOCATION:
❑External (std.) ❑Internal (in the airstream)
ACTUATOR FAIL POSITION:
❑Normally Closed (std.) ❑Normally Open
OPTIONS:
❑MLS-300 Position indicator switch pack
W = NOM. DUCT SIZE
W + 2" (51) (MIN. 8" [203])
H =
NOM.
DUCT
SIZE
H
+
2"
(51)
CCW
TO
OPEN
W + 2" (51) (MIN. 8" [203])
W
H
H
+
2"
(51)
*
*
*or 8" (203) min.
QUALIFICATIONS:
• UL 555S CLASSIFIED SMOKE DAMPER (File # R9492)
Leakage Class I or II at 250°F elevated temperature.
• Meets NFPA 90A, 92A, 92B, 101 and 105 as well as IBC and
NBC (Canada) Building Code requirements.
• California State Fire Marshal Listing No. 03230-0935:107.
• City of New York MEA# 366-03-M.
• Maximum velocity: 2000 fpm@ 4" w.g.
Velocity/
Pressure
Rating
Elevated
Temp.
°F
Minimum Maximum
Single Section Single Section Multiple Section
Vertical/Horizontal Vertical/Horizontal Vertical/ Horizontal
24 250
4" x 4" (102 x 102)
(Overall damper size is
8" x 8" [203 x 203] minimum).
34" x 46"
(864 x 1168)
142" x 94"
(3607 x 2388)

SCHEDULE TYPE
PROJECT
ENGINEER
CONTRACTOR
DATE B SERIES SUPERSEDES DRAWING NO.
9 - 3 - 20 FD-ACC 3 - 29 - 18 DTS
DAMPER TEST SWITCH
FOR USE WITH ALL SMOKE AND COMBINATION
FIRE/SMOKE DAMPERS
MODEL: DTS
Nailor Industries Inc. reserves the right to change any information concerning product or pricing without notice.
The DTS (Damper Test Switch) is an optional "momentary" push button
test switch available on all Nailor smoke and combination fire/smoke
dampers. The DTS provides the ability to "cycle test"the damper by
pushing and holding down the button until the damper has cycled and
closure has been visually verified, either by inspecting the damper
through the access door or by confirmation at a remote control panel
when equipped with the optional MLS-300 position indicator.
The DTS is mounted right on the damper and enables a single
maintainance person to test and cycle the damper, eliminating the need
for help from another person in the control room.
When a combination fire/smoke damper is ordered, the DTS is combined
with the ERL (Electric Resettable Link), in a common enclosure.
nailor.com
Combination Fire & Smoke Damper
ERL/DTS Electric Resettable Link/
Damper Test Switch
ERL
Reset
Temp.
165°F
212°F
250°F
350°F




ERL/DTS 12-19
DTS Push
To Test
Press and hold down "Momentary"
push button until damper has fully
cycled. The electric resettable link
is manual reset type.
L2L1
BLKBLK
ELECTRIC
ACTUATOR OR
EP SWITCH
WHT
MOUNTED ON DAMPER (FACTORY WIRING TERMINATES AT SPLICE
POINTS INDICATED INSIDE 4" x 4" ELECTRICAL BOX)
HEAT
SENSOR
(ERL)
M
BLK
(BLK)
(RED)
WHTBLKBLKBLK
(BLK)(RED)
120 VAC. (24 VAC)
PUSH
BUTTON
TEST SWITCH
(DTS)
L2L1
CLOSED
(RED LIGHT)
OPEN
(GREEN LIGHT)
CONTROL
SWITCH
NORMAL
MS2 DAMPER CLOSED
LOWER MICROSWITCH
MS1 DAMPER OPEN
UPPER MICROSWITCH
CLOSED
REMOTE CONTROL
STATION
(BY OTHERS)
4" x 4" ELECTRICAL BOX
MOUNTED ON DAMPER (FACTORY
WIRING TERMINATES AT SPLICE
POINTS INDICATED)
SMOKE
DETECTOR
(IF USED)
120 VAC. (24 VAC)
ELECTRIC
ACTUATOR OR
EP SWITCH
HEAT
SENSOR
(ERL)
PUSH
BUTTON
TEST
SWITCH
(DTS)
M
BLKBLK
ELECTRIC
ACTUATOR OR
EP SWITCH
WHT
HEAT
SENSOR
(ERL)
M
BLK
(BLK)
(RED)
PUSH
BUTTON
TEST SWITCH
(DTS)
DTS/ERL with MLS-300 Belimo (actuator aux. switches)
Position Indicator Package
Figure 2.
DTS/ERL Damper Test Switch with Electric
Resettable Link
Figure 1.
CL CL
OP OP
WIRING DIAGRAMS:
Model Series Open (OP) Closed (CL)
FSTF Orange / Gray Violet / Red
FSLF / FSAFA Gray / Gray Violet / Violet
FSNF / FSAFB White S4 / S6 White S1 / S2
Belimo Actuator Aux. Switch Wiring Connections
Page 1 of 2

SCHEDULE TYPE
PROJECT
ENGINEER
CONTRACTOR
DATE B SERIES SUPERSEDES DRAWING NO.
9 - 3 - 20 FD-ACC 3 - 29 - 18 DTS
DAMPER TEST SWITCH
FOR USE WITH ALL SMOKE AND COMBINATION
FIRE/SMOKE DAMPERS
MODEL: DTS
Nailor Industries Inc. reserves the right to change any information concerning product or pricing without notice.
Page 2 of 2
DTS LABEL VARIATIONS:
WIRING DIAGRAMS:
nailor.com
DTS Push
To Test
Primary
Temp.
Sensor
Reset
165°F
Combination Fire & Smoke Damper
DTO/DTS
Dual Temperature
Override Sensor/Damper Test Switch
High Limit
Sensor Reset
250°F
350°F


Press and hold down
"Momentary" push
button until damper
has fully cycled. The
temperature limits are
manual reset type.
DTO/DTS 12-19
nailor.com
Combination Fire & Smoke Damper
ERL/DTS Electric Resettable Link/
Damper Test Switch
ERL
Reset
Temp.
165°F
212°F
250°F
350°F




ERL/DTS 12-19
DTS Push
To Test
Press and hold down "Momentary"
push button until damper has fully
cycled. The electric resettable link
is manual reset type.
SMOKE DAMPER
DTS Damper Test Switch
Push
To Test
Press and hold down "Momentary" push button until
damper has fully cycled.
DTS 12-19
ERL/DTS Combination Fire/Smoke Damper DTO/DTS Combination Fire/Smoke Damper DTS Smoke Damper
Model Series Open (OP) Closed (CL)
MSXX04 Yellow / Yellow Blue / Blue
MSXX20 Yellow / Yellow Blue / Blue
Honeywell Actuator Aux. Switch Wiring Connections
WHTBLKBLKBLK
(BLK)(RED)
L2L1
CLOSED
(RED LIGHT)
OPEN
(GREEN LIGHT)
CONTROL
SWITCH
NORMAL
MS2 DAMPER CLOSED
LOWER MICROSWITCH
BLU BLU
YEL YEL
MS1 DAMPER OPEN
UPPER MICROSWITCH
CLOSED
REMOTE CONTROL
STATION
(BY OTHERS)
4" x 4" ELECTRICAL BOX
MOUNTED ON DAMPER (FACTORY
WIRING TERMINATES AT SPLICE
POINTS INDICATED)
SMOKE
DETECTOR
(IF USED)
120 VAC. (24 VAC)
ELECTRIC
ACTUATOR OR
EP SWITCH
HEAT
SENSOR
(ERL)
PUSH
BUTTON
TEST
SWITCH
(DTS)
M
DTS/ERL with MLS-300 Nailor or Honeywell
(actuator aux. switches) Position Indicator Package
Figure 3.
WHTBLKBLKBLK
(BLK)(RED)
L2L1
CLOSED
(RED LIGHT)
OPEN
(GREEN LIGHT)
CONTROL
SWITCH
NORMAL
MS2 DAMPER CLOSED
LOWER MICROSWITCH
S3 S2
S5 S4
MS1 DAMPER OPEN
UPPER MICROSWITCH
CLOSED
REMOTE CONTROL
STATION
(BY OTHERS)
4" x 4" ELECTRICAL BOX
MOUNTED ON DAMPER (FACTORY WIRING
TERMINATES AT SPLICE POINTS INDICATED)
SMOKE
DETECTOR
(IF USED)
120 VAC. (24 VAC)
ELECTRIC
ACTUATOR OR
EP SWITCH
HEAT
SENSOR
(ERL)
PUSH
BUTTON
TEST
SWITCH
(DTS)
M
DTS/ERL with MLS-300 Siemens GJD Series (actuator
auxiliary switches) Position Indicator Package
Figure 4.

SCHEDULE TYPE:
PROJECT:
ENGINEER:
CONTRACTOR:
DATE B SERIES SUPERSEDES DRAWING NO.
11 - 4 - 13 1200 9-00R/1200-11 SMP-SL - 1
SMP SIDE ACTUATOR MOUNTING PLATE
AND TYPE 'A' SLEEVE DETAIL
SMOKE DAMPERS
MODEL SERIES: 1210, 1260 AND 1280
Nailor Industries Inc. reserves the right to change any information concerning product or pricing without notice.
Dimensions are in inches (mm).
5"
(127)
1" (25)
12"(305)
WIDTH = NOM. DUCT SIZE-1/8" (3)
HEIGHT= NOM. DUCT SIZE - 1/4" (6)
NOTE:
Smoke Dampers shall be installed in accordance with NFPA 90A, latest
edition and Nailor installation instructions – see IOM-SDINST. Dampers
must be installed within 24" (610) of the smoke barrier to conform with
installation requirements.
SMP SIDE ACTUATOR MOUNTING PLATE
JACKSHAFT DRIVE MODELS
9"
(229)
WIDTH = NOM. DUCT SIZE 1/8" (3)
HEIGHT= NOM. DUCT SIZE 1/4" (6)
5"
(127)
1" (25)
16" (406) STD.
12" (305) MIN.
W= NOM. DUCT SIZE
HEIGHT = NOM. DUCT SIZE
16" (406) STD.
12" (305) MIN.
W=NOM. DUCT SIZE
HEIGHT = NOM. DUCT SIZE
SMP SIDE ACTUATOR MOUNTING PLATE
DIRECT DRIVE MODELS
TYPE 'A' SLEEVE
DIRECT DRIVE MODELS
TYPE 'A' SLEEVE
JACKSHAFT DRIVE MODELS

PRODUCT DATA
Put Bar Code Here
63-2584-10
MS4120F; MS4620F; MS8120F;
S2024-F; S20230-F Fast-Acting,
Two-Position Actuators
APPLICATION
The MS4120F, MS4620F, MS8120F, S2024-F, and S20230-F
Fast-Acting, Two-Position Actuators are spring return direct
coupled actuators (DCA) for on/off damper control. The
actuator accepts an on/off signal from a single-pole, single-
throw (spst) controller. Reversible mounting allows actuator to
be used for either clockwise (cw) or counterclockwise (ccw)
spring rotation.
Designed to operate reliably in smoke control systems
requiring Underwriter’s Laboratories Inc. UL555S ratings up to
350°F.
APPLICABLE LITERATURE
— Specification Data Sheet 63-2592
— Motor/Actuator Selection Guide
for Damper Applications 63-8419
— Engineering Manual of Automatic Control
(also called The Gray Manual) 77-1100
— Direct Coupled Actuator
Quick Selection Guide 63-8553
— Damper Torque Calculator 63-8437
FEATURES
• 175 lb-in. (20 Nm) minimum driving torque at 350°F
(176°C).
• Reversible mounting facilitates use in either clockwise
(cw) or counterclockwise (ccw) spring rotation.
• Integral spring return ensures level of return torque.
• Stainless steel internal spring.
• Fifteen-second spring return timing.
• No special cycling required during long-term holding.
(See Operation section.)
• No audible noise during holding.
• Patent pending design eliminates need for limit
switches to reduce power consumption.
• Models available for 24, 120, and 230 Vac applications.
• Ninety-five degree angle of rotation.
• Actuator holds rated torque at reduced power level.
• Die-cast aluminum housing.
• Housing design allows flush mounting to damper.
• Self-centering shaft adapter (SCSA), patent pending.
• Designed to operate reliably in smoke control systems
requiring Underwriter’s Laboratories Inc. UL555S
ratings up to 350°F.
MS4120F, MS4620F, MS8120F
• High temperature Teflon®lead wires.
• Models available with integral high temperature (350°F)
SPST position-indicating switches (7°, 85° stroke).
S2024-F, S20230-F
• Double-insulation rating.
• High-temperature, halogen-free, silicone-free
leadwires.
• Models available with integral high temperature (350°F)
SPDT position-indicating switches (7°, 85° stroke).

MS4120F; MS4620F; MS8120F; S2024-F; S20230-F FAST-ACTING, TWO-POSITION ACTUATORS
63-2584—10 2
SPECIFICATIONS
Models: See Tables 1, 2, and 3.
Table 1. Models.
aInternal switches are designed to pass UL555S
requirements (at 350°F).
Dimensions: See Fig. 1.
Device Weight:
MS4120F, MS4620F, S20230-F: 7.5 lb (3.4 kg)
MS8120F, S2024-F: 6.25 lb (2.8 kg)
Stroke: 95° ± 3°, mechanically limited.
Electrical Ratings:
Power Input:
MS4120F: 120 Vac ±10%, 60 Hz.
MS4620F,S; S20230-F: 230 Vac ±10%, 50/60 Hz.
MS8120F,S; S2024-F: 24 Vac +20%, -10%, 50/60 Hz
(Class 2).
Power Consumption:
MS4120F: Driving: 0.35A, 35W. Holding: 0.15A, 10W.
MS4620F,S; S20230-F:
Driving: 0.20A, 35W. Holding: 0.14A, 10W.
MS8120F,S; S2024-F: Driving: 45 VA. Holding: 10 VA.
Electrical Connections:
Lead Wires:
MS4120F, MS4620F, MS8120F: 1m Teflon wire.
MS4620S, MS8120S, S2024-F, S20230-F: 1m halogen-
free, silicone-free wire.
Two integral 3/8 in. flexible conduit connections.
Timing (At Rated Torque and Voltage):
Drive Open: 15 seconds typical.
Spring Close: 15 seconds typical.
Auxiliary Switches:
Dry Contact
Ratings (maximum load): 250 Vac, 5A resistive.
Settings (fixed): 7° nominal stroke, 85° nominal stroke.
Torque Rating (at Rated Voltage):
Typical Holding (minimum at 350°F): 175 lb-in. (20 Nm).
Spring Return (minimum at 350°F): 175 lb-in. (20 Nm).
Stall Maximum (fully open at 75°F): 425 lb-in. (48.0 Nm).
350°F Minimum Driving: 175 lb-in. (20 Nm).
Design Life (at Rated Voltage): 30,000 full stroke cycles.
Minimum Damper Shaft Length:
1 in. (25 mm); 3-1/4 (83 mm) recommended.
Cycling Requirements:
Prolonged holding-period (1 year) testing of these actuators
has been performed with no spring return failures. The
actuator and the internal spring are designed to require no
special cycling during long-term holding.
Honeywell recommends following all local, state and national
codes for periodic testing of the entire smoke control
system. Refer to National Fire Protection Association
(NFPA) National Fire Codes®: NFPA90A, NFPA92A and
NFPA92B for your application.
NFPA recommends periodic examination of each fire/smoke
damper (semi-annually or annually) to ensure proper
performance.
Mounting: Self-centering shaft adapter.
Round Damper Shafts: 0.5 to 1.06 in.
Square Damper Shafts: 1/2 to 3/4 in.
Actuator can be mounted with shaft in any position.
IMPORTANT
• Honeywell does not recommend using linkages with
these actuators because side-loading of the output
hub reduces actuator life.
• 3/4 in. or greater shaft diameter recommended.
Noise Rating at 1m (Maximum):
Driving or Spring Return: 70 dBA.
Holding: 20 dBA (no audible noise).
Vibration:
Not suitable for high vibration applications (Example installa-
tion environment: Truck Trailers or Railroad Cars)
Acceptable Vibration Levels 0.6g at 30 to 300 Hz.
Temperature Ratings:
Ambient: -40°F to 130°F (-40°C to 55°C).
Shipping and Storage: -40°F to 140°F (-40°C to 60°C).
IMPORTANT
The actuator is designed to meet UL555S standards
at 350°F (176°C). The actuator must be tested with
the damper to achieve this rating.
NOTE: The actuator is designed to operate for 30 min-
utes during a one-time excursion to 350°F
(176°C).
Humidity Ratings: 5% to 95% RH noncondensing.
Environmental Protection Ratings:
NEMA2 and IP54 when mounted on a horizontal shaft and the
base of the actuator below the shaft.
Accessories:
205649 Mounting Bracket (not supplied with actuator).
Approvals: See Table 4.
Controller Type:
MS4120F: Line voltage (120 Vac), 2-position, spst (Series 40).
MS4620F,S; S20230-F: Line voltage (230 Vac), 2-position,
spst (Series 40).
MS8120F,S; S2024-F: Low voltage (24 Vac), 2-position, spst
(Series 80).
Model
Voltage
in Vac
Internal Auxiliary
Switches
MS4120F1006 120 None
MS4120F1204 120 2 SPSTa
MS4620F1005 230 None
MS4620F1203 230 2 SPSTa
MS8120F1002 24 None
MS8120F1200 24 2 SPSTa
S2024-F (MS8120S1006) 24 None
S20230-F (MS4620S1009) 230
S2024-F-SW2 (MS8120S1204) 24 2 SPDTa
S20230-F-SW2 (MS4620S1207) 230

MS4120F; MS4620F; MS8120F; S2024-F; S20230-F FAST-ACTING, TWO-POSITION ACTUATORS
363-2584—10
Table 4. Approvals.
aPlenum applications require that conductors be enclosed in
conduit (see Wiring section for conduit details).
Fig. 1. Dimensional drawing of actuator in in. (mm).
Table 2. Actuator Selection (MS Series)
MElectrical Motor
SFail Safe Function (Spring Return)
41 120 Vac 2-position Control; Reversible Mount
Spring Return
46 230 Vac 2-position Control; Reversible Mount
Spring Return
81 24 Vac 2-position Control; Reversible Mount
Spring Return
20 175 lb-in. (20 Nm)
FFire and Smoke (US)
1No Feedback
0No Auxiliary Switches
2Two Auxiliary Switches
XX System Controlled Numbers
M S 41 20 F 1 2 XX
Table 3. Actuator Selection (S20 Series).
SFail Safe Function (Spring Return)
20 20 Nm (175 lb-in.)
24 24 Vac 2-position Control; Reversible Mount
Spring Return
230 230 Vac 2-position Control; Reversible Mount
Spring Return
FFire and Smoke Actuator
No Auxiliary Switches
-SW2 Two Auxiliary Switches
S20 24 - F-SW2
MS4120F
MS4620F,
MS8120F S20230-F S2024F
UL/cUL X X
UL873 Plenum
Rating, File
No. E4436;
Guide No.
XAPX.a
XX
CE X X
C-TICK X X X
10-11/16
(271)
1-9/16
(40)
8-5/8
(220)
2 (50)
3-15/16 (100)
2-15/16 (75)1/4 (6)
M20051