Submittal Sheet

ManualsBrandsHoneywell ManualsDamper actuatorsNon-Spring Return Damper Actuator, 90 Second (70lb/in)

PRODUCT DATA

63-2209—9

35 and 70 lb-in. Non-Spring Return

Direct Coupled Actuators

ML6161, ML7161, ML6174, ML7174

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. (4 Nm and 8 Nm) 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

Features ............................................................................1

Application.........................................................................1

Specifications ....................................................................2

Ordering Information .........................................................2

Installation .........................................................................4

Operation...........................................................................9

Checkout ...........................................................................11

Summary of content (12 pages)

PAGE 1
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.
PAGE 2
35 AND 70 LB-IN. NON-SPRING RETURN DIRECT COUPLED ACTUATORS SPECIFICATIONS Models: See Table 1. Noise Output: 45 dBA at 1 meter maximum. Dimensions: See Figures 1, 1A, and 1B. 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).
PAGE 3
5 AND 70 LB-IN. NON-SPRING RETURN DIRECT COUPLED ACTUATORS Table 4. Actuator 90° Stroke Timing. Table 1. 35 lb-in. and 75 lb-in. DCA models. At 50 Hz ML Motor Linkage 90 Second Models 61 Floating Control 71 4-20 mA/2-10 Vdc Control 108 sec At 60 Hz 90 sec Three-Minute Models 216 sec 180 sec Seven-Minute Models 504 sec 420 sec 61 35 lb-in. (4 Nm), Non-Spring Return Table 5. Actuator Minimum Design Life. 74 70 lb-in. (8 Nm), Non-Spring Return A 35 lb-in. (4 Nm) DCA 70 lb-in.
PAGE 4
35 AND 70 LB-IN. NON-SPRING RETURN DIRECT COUPLED ACTUATORS 1-13/16 (46) 3-5/8 (92) 1 (25) 3 IN. (76 MM) MINIMUM SPACING REQUIRED FOR REMOVING CONDUIT COVER 1-13/16 (46) 5-7/8 (149) 7/8 (22) 3-3/4 (95) M18018 Fig. 1c. Approximate dimensions of ML6161C,D and ML6174C,D DCA in inches (mm). INSTALLATION CAUTION When Installing this Product... 1. 2. 3. 4. Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition.
PAGE 5
35 AND 70 LB-IN. NON-SPRING RETURN DIRECT COUPLED ACTUATORS CAUTION Equipment Damage Hazard. Mounting actuator unevenly with damper housing can damage actuator. Mount actuator flush with damper housing or add spacer between mounting tab and damper box housing (see Fig. 2). TYPE A DAMPER AIR FLOW CW TO OPEN, CCW TO CLOSE TYPE B DAMPER DAMPER SHAFT ADD SPACER BETWEEN DAMPER BOX AND TAB AIR FLOW ML6161 ML6174 M2067B CCW TO OPEN, CW TO CLOSE Fig. 4.
PAGE 6
35 AND 70 LB-IN. NON-SPRING RETURN DIRECT COUPLED ACTUATORS Installation After determining the direction of the shaft rotation (cw or ccw), install the device. For valve linkage mounting, refer to the instructions shipped with the linkage. For damper mounting, proceed as follows: 1. Place the actuator onto the damper shaft. RANGE STOP PIN ACTUATOR PLATES CAUTION Equipment Damage Hazard. Improper range stop selection can damage light-duty dampers. Be sure to select the proper range stop. 2.
PAGE 7
35 AND 70 LB-IN. NON-SPRING RETURN DIRECT COUPLED ACTUATORS 1. 2. 3. Determine the direction of the desired closing rotation. Move the actuator to the position fully opposite the desired closing rotation (if cw closing rotation is desired, move the actuator to the full ccw position). Determine the correct hole for the setscrew using Fig. 9 and the results of step 1. IMPORTANT Run an entire check of the operation after completing this procedure.
PAGE 8
35 AND 70 LB-IN. NON-SPRING RETURN DIRECT COUPLED ACTUATORS COVER L1 (HOT) ML7161, ML7174 1 T1 L2 T2 – – + + mA +V 2-10 Vdc CONTROLLER 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M18072 CONDUIT KNOCKOUTS Fig. 13. ML7161 or ML7174 used with 2-10 Vdc control. M10075 Fig. 10. Conduit cover for ML6161C,D and ML6174C,D DCA.
PAGE 9
35 AND 70 LB-IN. NON-SPRING RETURN DIRECT COUPLED ACTUATORS 4. To Calibrate the 200976A,C: Insert the screw provided into the hole and fasten securely. IMPORTANT Failure to follow the calibration procedures can result in improper resistance values at desired stroke. IMPORTANT Remove the range stop pins and minimum position setscrews prior to calibration. 1.
PAGE 10
35 AND 70 LB-IN. NON-SPRING RETURN DIRECT COUPLED ACTUATORS T641A THERMOSTAT R C Y 120 VAC 24 VAC SYSTEM TRANSFORMER T641A THERMOSTAT 1 W R C Y ML6161, ML6174 ACTUATOR CCW PHASE SHIFT CAP. DRIVE CCW WINDING W 1 CW 1K DRIVE CW WINDING 2 3 COM COMMON CW CCW PHASE SHIFT CAP 120 VAC 1 AS SHOWN, T641 MAKES R-Y CONTACTS TO DRIVE ACTUATOR CCW, AND MAKES R-W CONTACTS TO DRIVE ACTUATOR CW. 24 VAC DRIVE CCW WINDING SYSTEM TRANSFORMER M18021 Fig. 16. T641A controlling ML6161 or M6174 Actuator.
PAGE 11
35 AND 70 LB-IN. NON-SPRING RETURN DIRECT COUPLED ACTUATORS Rotation Reversal Switch (ML7161, ML7174) Use the rotation reversal slide switch to reverse the actuator rotation. The switch is located on the bottom of the actuator housing (see Fig.5). To change rotation to counterclockwise (ccw) , change the slide switch. In direct, 2 volts is fully ccw and 10 volts is fully clockwise (cw); in reverse, 2 volts is fully cw and 10 volts is fully ccw.
PAGE 12
35 AND 70 LB-IN. NON-SPRING RETURN DIRECT COUPLED ACTUATORS CHECKOUT IMPORTANT Be sure to disconnect all wiring to the actuator before connecting the ohmmeter. ML6161, ML6174 To check out ML6161, ML6174 Actuators controlled by electronic control systems, such as the W7620, override the control system by programming the controller to open or close the zone damper, as appropriate. NOTE: Using a seven-minute actuator results in a longer response time before noticeable damper movement.