ML4202, ML4302, ML4702, ML4802,
ML8202, ML8302 Fast-Acting,
5-Year
Limited
Warranty
Two-Position Actuators
FOR FIRE/SMOKE CONTROL APPLICATIONS
INSTALLATION INSTRUCTIONS
Shipping/Storage Temperature: -40 to 140°F (-40 to 60°C).
Humidity: 5% to 95% rh, noncondensing.
APPLICATION
The ML4202, ML4302, ML4702, ML4802, ML8202, ML8302
Fast-Acting, Two-Position Actuators are spring return direct
coupled actuators (DCA) with an integral junction box for
on/off damper control. The actuator accepts an on/off signal from
a single-pole, single-throw (spst) controller. Models are available
with clockwise (cw) or counterclockwise (ccw) spring return.
Torque Rating (at rated voltage):
Typical Holding: 100 lb-in. (11.3 N•m).
Stall Maximum: 150 lb-in. (17 N•m).
Spring Return: 20 lb-in. (2.2 N•m).
350°F Driving: 20 lb-in. (2.2 N•m).
Design Life (at Rated Voltage): 60,000 full stroke cycles.
APPLICABLE LITERATURE
— Motor/Actuator Selection Guide
Noise Rating (Maximum):
Driving Open: 65 dBA at 1m.
Holding: 20 dBA at 1m (no audible noise).
for Damper Applications
63-8419
77-1100
Table 1. Models.
— Engineering Manual of Automatic Control
(also called The Gray Manual)
— Direct Coupled Actuator
Quick Selection Guide
— Damper Torque Calculator
Spring
Return
Direction
Power Consumption
Voltage Input
in Vac
63-8553
63-8437
Model
ML4202
Running
Holding
cw
0.18A, 18W 0.11A, 9W
120 ±10%,
60 Hz
ML4302
ML4702
ML4802
ML8202
ML8302
ccw
cw
SPECIFICATIONS
IMPORTANT
0.13A, 18W 0.10A, 11W 230 ±10%,
50/60 Hz
ccw
cw
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.
16 VA
8 VA
24 +20%, -10%
50/60 Hz
ccw
Models: See Table 1.
Cycling Requirements:
Dimensions: See Fig. 1.
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.
Minimum Damper Shaft Length: 1-3/4 in. (45 mm).
Device Weight: 5 lb (2.3 kg).
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.
Stroke: 95° ± 3°, mechanically limited.
Electrical Ratings: See Table 1.
Electrical Connections:
Two color coded 16 in. leads; includes ground screw.
One 7/8 in. hole for conduit connections (fittings not included).
Mounting: 3/8 to 1/2 in. square or round damper shafts.
Actuator can be mounted with shaft in any position. Secure
hub to shaft with: Two 1/4-28 UNF set screws. Use 1/8 in.
Allen wrench to tighten set screws.
Timing (At Rated Torque and Voltage):
Drive Open:
ML4202, ML4302, ML4702, ML4802: 25 sec maximum,
IMPORTANT
18 sec typical.
ML8202, ML8302: 25 sec maximum, 22 sec typical.
Spring Close: 15 sec.
Honeywell does not recommend using linkages with
these actuators because side-loading of the output
hub reduces actuator life.
Environmental Protection Ratings: NEMA1.
Approvals: See Table 2.
Ambient Ratings:
Operating Temperature: 0 to 130°F (-18 to 55°C).
N314
62-0194-3
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ML4202, ML4302, ML4702, ML4802, ML8202, ML8302 FAST-ACTING, TWO-POSITION ACTUATORS
D Montageanweisung
F Instructions d’Installation
I Istruzioni per I’Installazione
NL Installatievoorschrift
DK Installasjonsinstruks
N Installationsinstrukioner
SF Asennusohje
S Installations Instrukioner
E Instrucciones de montage
A
A1, A4
A2
24 VAC
120 VAC
!
d
ASSEMBLY
EINBAU
MONTAGE
MONTAGGIO
a
D
F
I
NL MONTAGE
DK MONTERE
a
N
MONTERING
FIN ASENTAMINEN
S
E
MONTERA
MONTAJE
b
b
M11875
c
M11874
M11876
A3
A5
A6
MIN: 45 lb-in. (5.1 Nm)
MAX: 60lb-in. (6.8 Nm)
b
HEX
4mm
c
a
a
b
b
a
M11881
M12030
M11882
3
62-0194—3
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ML4202, ML4302, ML4702, ML4802, ML8202, ML8302 FAST-ACTING, TWO-POSITION ACTUATORS
B
B1
B2
24 VAC
120 VAC
!
a
b
M11887
DISASSEMBLY
AUSBAU
D
F
I
DÉMONTAGE
SMONTAGGIO
M11886
NL DEMONTAGE
DK AFMONTERE
N
DEMONTERE
FIN PURKAMINEN
B3
B4
S
E
NEDMONTERA
DESMONTAJE
M11884
a
HEX
b 4mm
M11885
M11888
®
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
© 2005 Honeywell International Inc.
62-0194—3 M.S. Rev. 09-05
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