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35 AND 70 LB-IN. NON-SPRING RETURN DIRECT COUPLED ACTUATORS

63-2209—8

Fig. 4. Determining direction damper

shaft rotates when opening.

Manual Operation (Declutch)

CAUTION

Product Damage Hazard.

Do not use manual declutch without supporting

the load.

Support actuator load independently immediately

before and during use of manual declutch lever.

Manual declutch capability is available on some actuators.

Use the manual declutch lever to manually adjust the actuator

setting. Fig. 5 shows the location of the manual declutch lever.

To operate, push the lever in the direction of the arrow on the

lever cover.

Fig. 5. Location of manual declutch lever.

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:

Place the actuator onto the damper shaft.

CAUTION

Equipment Damage Hazard.

Improper range stop selection can damage

light-duty dampers.

Be sure to select the proper range stop.

If the angle of the damper opening is either 45° or 60°,

close the actuator using the manual declutch:

a. Disengage the hub using the declutch lever; see

Manual Operation (Declutch) section.

b. Rotate the hub until the actuator gear train passes

the proper 45° or 60° setting. (Do not insert the pin

until after the actuator passes this point.)

c. Release the declutch lever.

NOTE: Dampers with 90° stroke do not require the

range stop pin.

Insert the range stop pin into the appropriate (cw or

ccw) 45° or 60° slot. The range stop pin clips into its

final position only after the pin passes through both

actuator plates (see Fig. 7). The range stop pin should

snap into position and not be removable manually

(see Fig. 8).

IMPORTANT

Do not fully tighten the mounting screw; the actuator

must be allowed to float.

With the actuator placed in its final position, fix the

mounting tab in position with a 1/4 in. screw or pin. See

Fig. 6.

Position the damper in the open position and securely

tighten the Allen screws into the damper shaft.

Fig. 6. Proper actuator mounting to prevent rotation.

AIR

FLOW

AIR

FLOW

CW TO OPEN, CCW TO CLOSE

CCW TO OPEN, CW TO CLOSE

M2067BB

TYPE A DAMPER

TYPE B DAMPER

M10076B

MANUAL
DECLUTCH
LEVER

ROTATION
REVERSAL SWITCH

M20884

1MM

(1/32 IN.)

1MM (1/32 IN.)

Содержание ML6161 Series

Страница 1: ...spdt floating thermostats or two position control systems Two position control requires installation of the 201052B Auxiliary Switch 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 Auxili...

Страница 2: ...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 Ratin...

Страница 3: ...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 declu...

Страница 4: ...IRECT COUPLED ACTUATORS 63 2209 8 4 Fig 1B Approximate dimensions of ML6161C D and ML6174C D DCA in in mm M18018 5 7 8 149 1 13 16 46 1 25 3 5 8 92 1 13 16 46 3 IN 76 MM MINIMUM SPACING REQUIRED FOR REMOVING CONDUIT COVER 3 3 4 95 7 8 22 ...

Страница 5: ... designed to open a damper or valve by driving the shaft in either the clockwise cw or counterclockwise ccw direction The actuator has a mounting tab on the bottom that secures it to a damper box or valve linkage When mounted correctly this tab allows the actuator to float without rotating relative to the shaft The tab is sized for 1 4 in screw or pin not included CAUTION Equipment Damage Hazard T...

Страница 6: ...gle of the damper opening is either 45 or 60 close the actuator using the manual declutch a Disengage the hub using the declutch lever see Manual Operation Declutch section b Rotate the hub until the actuator gear train passes the proper 45 or 60 setting Do not insert the pin until after the actuator passes this point c Release the declutch lever NOTE Dampers with 90 stroke do not require the rang...

Страница 7: ...ng 7 If resistance is met before the setscrew is fully inserted stop and review the initial setup procedures as detailed in steps 1 through 3 8 Determine the angle of minimum position required for the application With the setscrew fully inserted the minimum position is 30 With the setscrew fully out the minimum position is 0 9 Using the conversion of approximately 1 7 angular degrees per turn of t...

Страница 8: ... ends if necessary and connect to the CW COM and CCW terminals using Fig 11 through 14 Fig 16 through 20 or the control manufacturer instructions 5 Apply power to the actuator 6 After operational checkout replace the cover by reversing the procedure outlined in step 1 Fig 10 Conduit cover for ML6161C D and ML6174C D DCA Fig 11 ML6161 or ML6174 used with T87F in heating only or cooling only applica...

Страница 9: ...or body and the bracket is aligned over the screw hole 4 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 Fig 15 ML6161A C ML6174A C with field addable potentiometer To Calibrate the 200976A C IMPORTANT Remove the range stop pins and minimum position setscrews prior to calib...

Страница 10: ...all thermostats The T641 is a mercury bulb floating control type thermostat designed for use with the seven minute model on pressure dependent systems see Fig 16 and 17 The T6984 is an electronic floating control thermostat designed for use with the 90 second and seven minute models see Fig 18 Fig 16 T641A controlling ML6161 or M6174 Actuator Fig 17 Minimum position set with auxiliary switch conta...

Страница 11: ...llel Make certain the total connected load does not exceed the current capacity of the input signal source CURRENT INPUT 4 TO 20 MA When using a current controller such as the W7600 wire the ML7161 ML7174 voltage input terminals Vdc and in parallel Use a bridging resistor in parallel with the 4 to 20 mA signal See Fig 20 for resistor values NOTE The actuator has 45 000 ohm impedance Fig 19 Spdt co...

Страница 12: ...of the thermostat higher to determine if the wiring is correct 4 If no movement is observed check for the presence of 24 volts 5 If using the T641 Thermostat check that 24 volts are present between terminals C and Y during a call for cooling With proper wiring and 24 volts present the actuator should operate correctly 6 If not replace the actuator ML7161 ML7174 Check input impedance on the actuato...

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