Honeywell MS4120S User Manual

MS4120F; MS4620F,S;  
MS8120F,S; S2024-F; S20230-F  
Fast-Acting, Two-Position Actuators  
PRODUCT DATA  
FEATURES  
175 lb-in. (20 N•m) 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.  
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.  
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.  
MS4120F, MS4620F, MS8120F  
®
High temperature Teflon lead wires.  
Designed to operate reliably in smoke control systems  
requiring Underwriter’s Laboratories Inc. UL555S ratings up to  
350°F.  
Models available with integral high temperature (350°F)  
SPST position-indicating switches (7°, 85° stroke).  
S2024-F, S20230-F, MS4620S, MS8120S  
Double-insulation rating.  
APPLICABLE LITERATURE  
High-temperature, halogen-free, silicone-free  
leadwires.  
— Specification Data Sheet  
— Motor/Actuator Selection Guide  
for Damper Applications  
— Engineering Manual of Automatic Control  
(also called The Gray Manual)  
— Direct Coupled Actuator  
63-2592  
63-8419  
77-1100  
Models available with integral high temperature (350°F)  
SPDT position-indicating switches (7°, 85° stroke).  
Quick Selection Guide  
— Damper Torque Calculator  
63-8553  
63-8437  
63-2584—7  
MS4120F; MS4620F,S; MS8120F,S; S2024-F; S20230-F FAST-ACTING, TWO-POSITION ACTUATORS  
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).  
Table 3. Actuator Selection (S20 Series).  
S Fail Safe Function (Spring Return)  
20 20 N•m (175 lb-in.)  
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.  
24 24 Vac 2-position Control; Reversible Mount Spring Return  
230 Vac 2-position Control; Reversible Mount Spring  
230 Return  
NOTE: The actuator is designed to operate for 30 minutes  
during a one-time excursion to 350°F (176°C).  
F Fire and Smoke Actuator  
No Auxiliary Switches  
-SW2 Two Auxiliary Switches  
Humidity Ratings: 5% to 95% RH noncondensing.  
Environmental Protection Ratings:  
NEMA2 and IP54 when mounted on a horizontal shaft.  
S
20 24  
-
F
-SW2  
Accessories:  
205649 Mounting Bracket (not supplied with actuator).  
Table 4. Approvals.  
S20230-F,  
S2024-F,  
MS4620F, MS4620S,  
Approvals: See Table 4.  
MS4120F MS8120F MS8120S  
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).  
UL/cUL  
X
X
X
UL873 Plenum Rating,  
File No. E4436;  
X
a
Guide No. XAPX.  
CE  
X
X
X
X
Table 2. Actuator Selection (MS Series).  
C-TICK  
M Electrical Motor  
a
Plenum applications require that conductors be enclosed in  
conduit (see Wiring section for conduit details).  
S Fail 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 N•m)  
3-15/16 (100)  
2 (50)  
1-9/16  
(40)  
F Fire and Smoke (US)  
S Fire and Smoke (EU)  
1 No Feedback  
0 No Auxiliary Switches  
2 Two Auxiliary Switches  
XX System Controlled Numbers  
10-11/16  
(271)  
M S 41 20  
F
1
2
XX  
8-5/8  
(220)  
M20051  
1/4 (6)  
2-15/16 (75)  
Fig. 1. Dimensional drawing of actuator in inches (mm).  
3
63-2584—7  
MS4120F; MS4620F,S; MS8120F,S; S2024-F; S20230-F FAST-ACTING, TWO-POSITION ACTUATORS  
Determine Appropriate Mounting Orientation  
See Fig. 2 for mounting orientation.  
INSTALLATION  
NOTES:  
When Installing this Product...  
Actuators are shipped in the fully closed position.  
1. Read these instructions carefully. Failure to follow  
them could damage the product or cause a hazardous  
condition.  
An arrow molded into the hub points to tick marks  
on the label to indicate the hub rotary position.  
See Fig. 3 for proper mounting to a square damper  
shaft.  
2. Check the ratings given in the instructions and on the  
product to make sure the product is suitable for your  
application.  
3. Installer must be a trained, experienced service  
technician.  
4. After installation is complete, check out product  
operation as provided in these instructions.  
CCW TO CLOSE  
(FAIL-SAFE  
POSITION)  
CW TO CLOSE  
(FAIL-SAFE  
POSITION)  
CW TO OPEN  
CCW TO OPEN  
WARNING  
Electrical Power Hazard.  
Line voltage can cause death or serious injury  
and short equipment circuitry.  
Disconnect power supply before installation.  
CAUTION  
M20052  
Electrical Shock or Equipment Damage Hazard.  
Low voltage can shock individuals or short  
equipment circuitry.  
Fig. 2. Spring Return DCA mounting orientation.  
Disconnect power supply before installation.  
IMPORTANT  
All wiring must agree with applicable codes,  
ordinances and regulations.  
Location  
The actuators are designed to open a damper by driving the  
damper shaft in either a clockwise  
or counterclockwise  
DAMPER SHAFT  
M21007  
direction. The actuator housing has two slots on the  
bottom, either of which, with a 205649 Mounting Bracket,  
secures it flush to a damper box (see Fig. 2).  
Fig. 3. Proper mounting to square damper shaft.  
NOTE: When mounted correctly, these slots allow the  
actuator to float without rotating relative to the damper  
shaft.  
Measure Damper/Valve Shaft Length  
If the shaft is less than three inches in length, the shaft  
coupling must be located between the damper/valve and  
actuator housing. If the shaft length is more than three inches,  
the shaft coupling may be located on either side of the actuator  
housing.  
CAUTION  
Equipment Damage Hazard.  
If the coupling must be moved from one side of the actuator to  
the reverse, follow these instructions (see Fig. 4):  
1. Remove the retainer clip from the shaft coupling and set  
it aside for later use.  
Tightly securing actuator to damper housing can  
damage actuator.  
Mount actuator to allow it to float along its vertical axis.  
2. Remove shaft coupling from one side of the actuator.  
3. Replace the shaft coupling on the opposite side of the  
actuator aligning it based on the stroke labelling.  
4. Replace the retainer clip on the shaft coupling using the  
groove of the coupling.  
Preparation  
Before mounting the actuator onto the damper shaft, determine  
the:  
— Damper/valve opening direction for correct spring return  
rotation. The actuator can be mounted to provide clockwise  
or counterclockwise spring return.  
— Damper shaft size (see Specifications section).  
63-2584—7  
4
MS4120F; MS4620F,S; MS8120F,S; S2024-F; S20230-F FAST-ACTING, TWO-POSITION ACTUATORS  
5. Turn damper blades to desired normal (closed) position.  
6. Place actuator and mounting bracket back into position  
and secure bracket to damper box with sheet metal  
screws.  
7. Using 10 mm wrench, tighten shaft coupling securely  
onto damper shaft using minimum 120 lb-in., maximum  
180 lb-in. torque.  
M20054  
Fig. 4. Mounting shaft coupling to actuator opposite side.  
Mounting  
1
CAUTION  
Device Malfunction Hazard.  
Improper shaft coupling tightening causes device  
malfunction.  
Tighten shaft coupling with proper torque to prevent  
damper shaft slippage.  
CAUTION  
Using actuator as shaft bearing causes device  
Actuator Damage Hazard.  
2
damage.  
Use actuator only to supply rotational torque. Avoid any  
side loads to actuator output coupling bearings.  
To mount actuator, proceed as follows:  
1. Place actuator over damper shaft; and hold mounting  
bracket in place. See Fig. 5.  
2. Mark screw holes on damper housing.  
3. Remove actuator and mounting bracket.  
4. Drill or center-punch holes for mounting screws (or use  
no.10 self-tapping sheet metal screws).  
1
2
ENSURE THAT MOUNTING ASSEMBLY PREVENTS ACTUATOR  
ROTATION AND ALLOWS ACTUATOR TO FLOAT ALONG  
INDICATED AXIS. WHEN TOO TIGHT, THE RESULTING BINDING  
CAN DAMAGE THE ACTUATOR OR REDUCE TORQUE OUTPUT.  
ACCESSORY MOUNTING BRACKET IS NOT SUPPLIED WITH  
THE ACTUATOR.  
M20055  
Fig. 5. Mounting actuator to damper housing.  
NOTE: If necessary, use a field-fabricated steel base plate  
secured with sheet metal screws.  
5
63-2584—7  
MS4120F; MS4620F,S; MS8120F,S; S2024-F; S20230-F FAST-ACTING, TWO-POSITION ACTUATORS  
WIRING  
See Fig. 6 through 10 for typical wiring diagrams.  
MS4620F  
WARNING  
Line voltage can cause death or serious injury and  
short equipment circuitry.  
(
)
L2  
BLUE  
Electrical Power Hazard.  
230 VAC  
BROWN  
GREEN  
(
)
L1  
Disconnect power supply before installation.  
BLUE  
7° AUXILIARY  
SWITCH  
BLUE  
CAUTION  
YELLOW  
YELLOW  
85° AUXILIARY  
SWITCH  
Electrical Shock or Equipment Damage Hazard.  
Disconnect all power supplies before installation.  
Motors with auxiliary switches can have more than one  
disconnect.  
M20057A  
Fig. 8. Typical 230 Vac wiring (MS Series).  
IMPORTANT  
1. All wiring must comply with local electrical codes,  
S2024-F-SW2, MS8120S  
ordinances and regulations.  
2. Voltage and frequency of transformer used with  
MS8120F,S and S2024-F must correspond with the  
characteristics of power supply and actuator.  
(
)
L2  
230 VAC  
)
BLUE  
BROWN  
(
L1  
NOTE: The conduit fittings are designed for use with 3/8 in.  
reduced-wall steel or aluminum flexible conduit.  
GRAY/BLUE  
GRAY/RED  
85° AUXILIARY  
SWITCH  
GRAY/YELLOW  
BLACK/BLUE  
MS8120F  
(
(
)
)
L2  
L1  
BLACK/RED  
7° AUXILIARY  
SWITCH  
BLACK  
RED  
BLACK/YELLOW  
24 VAC  
M20678A  
Fig. 9. Typical 24 Vac wiring (S20 Series).  
GREEN  
BLUE  
S20230-F-SW2, MS4620S  
7° AUXILIARY  
BLUE  
SWITCH  
YELLOW  
YELLOW  
(
)
L2  
BLUE  
85° AUXILIARY  
SWITCH  
230 VAC  
BROWN  
(
)
L1  
M20053A  
Fig. 6. Typical 24 Vac wiring (MS Series).  
GRAY/BLUE  
GRAY/RED  
85° AUXILIARY  
SWITCH  
MS4120F  
GRAY/YELLOW  
BLACK/BLUE  
BLACK/RED  
7° AUXILIARY  
SWITCH  
(
)
L2  
WHITE  
BLACK/YELLOW  
120 VAC  
BLACK  
GREEN  
(
)
L1  
M20680A  
Fig. 10. Typical 230 Vac wiring (S20 Series).  
BLUE  
7° AUXILIARY  
SWITCH  
BLUE  
YELLOW  
YELLOW  
85° AUXILIARY  
SWITCH  
M20056A  
Fig. 7. Typical 120 Vac wiring (MS Series).  
63-2584—7  
6
MS4120F; MS4620F,S; MS8120F,S; S2024-F; S20230-F FAST-ACTING, TWO-POSITION ACTUATORS  
SPST Switches (Table 5)  
See Fig. 6 through 8 for SPST auxiliary switch wiring.  
OPERATION  
The actuators are designed for use in Smoke Control Systems.  
If power fails, the actuator spring returns to the 0° position. The  
actuator mounts flush with the damper box. The actuator drives  
from 0° to 95° and spring returns back to 0°.  
Table 5. SPST Auxiliary Switch Operation.  
Makes  
Breaks  
Wire  
Switch Color  
(degrees from fully closed position)  
The actuators are operated by an spst two-position controller.  
When using an spst two-position controller, the actuator drives  
to the damper fully open position when controller contact  
makes and spring returns to the damper fully closed position  
when controller contact breaks. The actuator drops to holding  
power level on detection of stall, independent of hub position.  
7°  
85°  
blue  
less than 7  
greater than 7  
less than 85  
yellow greater than 85  
NOTE: Both sets of contacts are open when the actuator is  
between 7° and 85°.  
SPDT Switches (Fig. 11)  
Cycling  
See Fig. 9 through 11 for SPDT auxiliary switch wiring.  
The actuator and the internal spring are designed so that no  
special cycling during long-term holding is required. 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  
7° SWITCH  
85° SWITCH  
MORE 85°  
LESS 7°  
MORE 7°  
LESS 85°  
BLACK/BLUE  
BLACK/BLUE  
BLACK/RED  
GRAY/BLUE  
GRAY/BLUE  
GRAY/RED  
®
Codes : NFPA90A, NFPA92A, and NFPA92B for your  
BLACK/RED  
GRAY/RED  
application.  
BLACK/YELLOW  
BLACK/YELLOW  
GRAY/YELLOW  
GRAY/YELLOW  
M20679B  
Auxiliary Switches  
Fig. 11. SPDT auxiliary switch operation.  
Some models include auxiliary switches (see Table 1).  
7
63-2584—7  
 
MS4120F; MS4620F,S; MS8120F,S; S2024-F; S20230-F FAST-ACTING, TWO-POSITION ACTUATORS  
3. If the actuator does not run, remove power for at least  
CHECKOUT  
two seconds.  
4. If the actuator spring returns, allow it to close entirely,  
then return to step 2.  
5. If the actuator does not spring return, verify that the actu-  
ator is properly installed. See Installation section.  
6. If the actuator is correctly installed but neither runs nor  
spring returns, replace the actuator.  
MS4120F (120 Vac model)  
1. Check damper position.  
2. Connect 120 Vac to the black and white leadwires to  
drive the damper to the open position. The actuator  
should drive the damper.  
3. If the actuator does not run, remove power for at least  
MS8120F,S; S2024-F (24 Vac models)  
two seconds.  
4. If the actuator spring returns, allow it to close entirely,  
then return to step 2.  
5. If the actuator does not spring return, verify that the actu-  
ator is properly installed. See Installation section.  
6. If the actuator is correctly installed but neither runs nor  
spring returns, replace the actuator.  
1. Check damper position.  
2. Connect 24 Vac to the red and black leadwires to drive  
the damper to the open position. The actuator should  
drive the damper.  
3. If the actuator does not run, remove power for at least  
two seconds.  
4. If the actuator spring returns, allow it to close entirely,  
then return to step 2.  
5. If the actuator does not spring return, verify that the actu-  
ator is properly installed. See Installation section.  
6. If the actuator is correctly installed but neither runs nor  
spring returns, replace the actuator.  
MS4620F,S; S20230-F (230 Vac models)  
1. Check damper position.  
2. Connect 230 Vac to the blue and brown leadwires to  
drive the damper to the open position. The actuator  
should drive the damper.  
63-2584—7  
8
MS4120F; MS4620F,S; MS8120F,S; S2024-F; S20230-F FAST-ACTING, TWO-POSITION ACTUATORS  
D Montageanweisung  
NL Installatievoorschrift  
DK Installasjonsinstruks  
N Installationsinstrukioner  
SF Asennusohje  
F Instructions d’Installation  
I Istruzioni per I’Installazione  
S Installations Instrukioner  
E Instrucciones de montage  
A
A1,  
A4  
24 VAC  
120 VAC  
230 VAC  
!
a
ASSEMBLY  
EINBAU  
MONTAGE  
MONTAGGIO  
D
F
I
NL MONTAGE  
DK MONTERE  
N
MONTERING  
FIN ASENTAMINEN  
S
E
MONTERA  
MONTAJE  
b
M20726  
M20727  
A2  
A5  
A3  
A6  
d
a
b
b
M12030  
c
M20728  
10 mm  
b
a
b
a
M20730A  
M20729  
9
63-2584—7  
MS4120F; MS4620F,S; MS8120F,S; S2024-F; S20230-F FAST-ACTING, TWO-POSITION ACTUATORS  
B2  
B
B1  
24 VAC  
120 VAC  
230 VAC  
!
a
b
DISASSEMBLY  
AUSBAU  
DÉMONTAGE  
SMONTAGGIO  
M20732  
D
F
I
M20733A  
NL DEMONTAGE  
DK AFMONTERE  
N
DEMONTERE  
FIN PURKAMINEN  
S
E
NEDMONTERA  
DESMONTAJE  
M20731A  
B3  
B4  
a
M20734  
M20735A  
63-2584—7  
10  
MS4120F; MS4620F,S; MS8120F,S; S2024-F; S20230-F FAST-ACTING, TWO-POSITION ACTUATORS  
11  
63-2584—7  
MS4120F; MS4620F,S; MS8120F,S; S2024-F; S20230-F FAST-ACTING, TWO-POSITION ACTUATORS  
®
Teflon is a registered trademark of the E.I. du Pont de Nemours and Company.  
®
National Fire Codes is a registered trademark of the National Fire Protection Association (NFPA).  
Automation and Control Solutions  
Honeywell International Inc.  
1985 Douglas Drive North  
Golden Valley, MN 55422  
customer.honeywell.com  
Honeywell Limited-Honeywell Limitée  
35 Dynamic Drive  
Scarborough, Ontario M1V 4Z9  
® U.S. Registered Trademark  
© 2006 Honeywell International Inc.  
63-2584—7 C.H. Rev. 03-06  

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