Honeywell ML6161, ML6161A, ML6161B, ML6161C, ML6161D Product Data
...
35 and 70 lb-in.
Non-Spring Return
Direct Coupled Actuators
ML6161, ML7161, ML6174, ML7174
PRODUCT DATA
FEATURES
• Selectable 45°, 60°, or 90° stroke in both clockwise
(cw) or counterclockwise (ccw) directions.
• 0° to 30° minimum position adjustment (cw or ccw
direction) on all models.
• Magnetic coupling eliminates the need for mechanical
stops.
• Two field-addable auxiliary switches.
• Auxiliary feedback potentiometer field-addable on
select models.
• Manual declutch on all models.
• ML7161 and ML7174 models include standard reverse/
direct acting rotation switch on outside cover.
• W7620 Terminal Unit Controller compatibility.
• Commercial zone damper in W7600 Commercial Zone
System compatibility.
APPLICATION
The 35 and 70 lb-in. Non-Spring Return Direct Coupled
Actuators (DCA) are control actuators that provide floating or
proportioning control for valves and dampers. The
proportioning actuators accept a current or voltage signal from
a controller to position the damper or valve at any chosen
point between fully open and fully closed. Floating actuators
are suitable for use with single pole double throw (spdt)
floating thermostats or two-position control systems.
Two-position control requires installation of the 201052B
Auxiliary Switch.
Contents
Application ........................................................................ 1
Features ........................................................................... 1
Specifications ................................................................... 2
Ordering Information ........................................................ 2
Installation ........................................................................ 5
Operation .......................................................................... 10
Checkout .......................................................................... 12
® U.S. Registered Trademark
Copyright © 2003 Honeywell International Inc.
All Rights Reserved
Þ
63-2209-8
35 AND 70 LB-IN. NON-SPRING RETURN DIRECT COUPLED ACTUATORS
SPECIFICATIONS
Models: See Table 1.
Dimensions: See Fig. 1, 1A, and 1B.
Electrical Ratings:
Power Input: 24 Vac ±20%, 50/60 Hz.
Impedance:
2-10 Vdc: 45k ohms.
4-20 mA: 536 ohms.
Power Consumption: See Table 2.
Auxiliary Switch Ratings:
Electrical: Selective NO or NC, not simultaneous.
Pilot Duty: 50 VA, 24 Vac.
Switch Differential: Three angular degree maximum.
Torque Ratings (at Rated Voltages): See Table 3.
Actuator Stroke:
Selectable: 45°, 60°, and 90°.
Rotation: Clockwise (cw) and counterclockwise (ccw).
NOTE: Reversing drive rotation of the ML7161 and ML7174
requires changing the control signal from 2-10 Vdc to
10-2 Vdc.
Device Weight: 1.3 lb (0.58 kg).
Actuator Timing for 90° Stroke: See Table 4.
Mounting: Mounts directly on 3/8 in. to 1/2 in. (10 to 13 mm)
round or square shaft. Can be mounted with shaft in any
position with two 1/4 in. (6 mm) 28 NF Allen screws. Mini-
mum Shaft Length Required: 1-3/4 in. (45 mm).
Temperature Ratings:
Ambient: 20°F to 125°F (-18°C to 50°C).
Derated Timing to: -20°F (-29°C).
Shipping and Storage: -20°F to 130°F (-29°C to 54°C).
Humidity Ratings: 5% to 95% RH noncondensing.
Actuator Minimum Design Life: See Table 5.
Noise Output: 45 dBA at 1 meter maximum.
Feedback Potentiometer Ratings:
Electrical Rating (200976A,C Potentiometer): 24 Vac, 50/60 Hz,
2.25W.
Resistance Output (Resistance Linear as Measured Between
Terminals R-B):
0 ohms (at 0°, cw stroke).
250 ohms (at 45°, cw stroke).
333 ohms (at 60°, cw stroke).
500 ohms (at 90°, cw stroke).
Environmental Protection Ratings:
NEMA1.
IP54 (ML6161E, ML7161E, ML6174E, ML7174E only).
Approvals:
Underwriter’s Laboratories Inc. Component Recognized: File
No. E4436; Guide No. XAPX2.
UL94-5V: Meets plenum requirements.
Canadian Standards Association Certified (includes Auxiliary
Switch).
ML6161E, ML6174E, ML7161E, ML7174E only: CE.
Accessories:
200976A Auxiliary Potentiometer (0 to 500 ohm).
200976C Auxiliary Potentiometer (0 to 2000 ohm).
201052A Auxiliary Switch (one).
201052B Auxiliary Switch (two).
201391 Shaft Adapter (included).
4074ENJ Bag Assembly—includes stop pin, shaft adapter,
and two minimum-position screws.
4074ENY Bag Assembly—includes stop pin and shaft
adapter.
4074EVK Short Shaft Extender.
7640QW Metal Enclosure—for attaching conduit to actuator.
T641 Floating Thermostat—for use with seven-minute
models.
T6984 Floating Thermostat—for use with 90-second and
seven-minute models.
T7984 Modulating Thermostat—for use with ML7161 or
ML7174.
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:
1. Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).
2. Honeywell Customer Care
1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
63-2209—8 2
Table 1. 35 lb-in. and 75 lb-in. DCA models.
ML Motor Linkage
61 Floating Control
71 4-20 mA/2-10 Vdc Control
61 35 lb-in. (4 Nm), Non-Spring Return
74 70 lb-in. (8 Nm), Non-Spring Return
A Includes output for feedback
potentiometer.
B Standard (includes minimum-position
setscrews).
C Includes output for feedback potentiometer
and cover with conduit connections.
D Includes cover with conduit connections.
E Standard with European ratings.
1 Standard.
2 Includes declutch function.
35 AND 70 LB-IN. NON-SPRING RETURN DIRECT COUPLED ACTUATORS
Table 4. Actuator 90° Stroke Timing.
At 50 Hz At 60 Hz
90 Second Models 108 sec 90 sec
Three-Minute Models 216 sec 180 sec
Seven-Minute Models 504 sec 420 sec
Table 5. Actuator Minimum Design Life.
35 lb-in. DCA 70 lb-in. DCA
Cycles 50,000 40,000
Repositions 1,500,000 1,500,000
2-7/8 (73)
1-11/16
(42)
1 (25)
OPTIONAL
AUXILIARY
SWITCH
1/8
(3)
ML 61 61 B 1 XXX Varies by model
Table 2. Power Consumption.
Model Power Consumption
ML6161A,B,C,D 1.8 VA
ML7161A 4.8 VA
ML6174A,B 2.4 VA
ML7174A 5.4 VA
Table 3. Torque Ratings.
35 lb-in. DCA
lb-in. (Nm)
70 lb-in. DCA
lb-in. (Nm)
Running 35 (4) 70 (8)
Breakaway
Stall Minimum 45 (5)
Stall Maximum 70 (8) 130 (14)
Fig. 1A. Approximate dimensions of ML7161, ML7174 DCA in in. (mm).
4-1/4
(108)
4-7/8
(123)
11/16
(18)
2-1/2 (64)
7/8
(22)
1-5/16
(33)
CW
COM
CCW
3-3/8 (86)
Fig. 1. Approximate dimensions of ML6161A,B,E
and ML6174A,B,E DCA in in. (mm).
M18016
3 63-2209—8
35 AND 70 LB-IN. NON-SPRING RETURN DIRECT COUPLED ACTUATORS
3 IN. (76 MM)
MINIMUM SPACING
REQUIRED
FOR REMOVING
CONDUIT COVER
3-3/4 (95)
1-13/16 (46)
7/8
(22)
3-5/8 (92)
1
(25)
1-13/16
M18018
(46)
5-7/8
(149)
Fig. 1B. Approximate dimensions of ML6161C,D and ML6174C,D DCA in in. (mm).
63-2209—8 4
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