Johnson Controls M9216 Series Installation Instructions Manual

Groove

for the

Locking Clip

Locking

Clip

Limit
Stop

Position
Indicator

Tab

Back of

the Actuator

Sleeve

*34636461G*

Installation Instructions M9216
Issue Date October 2017

34-636-461, Rev. J

M9216 Series Electric Spring Return Actuators

Installation

IMPORTANT: The M9216 Series actuator is

intended to control equipment under normal
operating conditions. Where failure or malfunction of
an M9216 actuator could lead to an abnormal
operating condition that could cause personal injury
or damage to the equipment or other property, other
devices (limit or safety controls) or systems (alarm or
supervisory) intended to warn of, or protect against,
failure or malfunction of an M9216 actuator must be
incorporated into and maintained as part of the
control system.

Parts Included

• M9216 actuator

• M9000-100 NPT conduit adaptor and nut

(two included for actuators with switches or a
feedback potentiometer)

• M9000-160 anti-rotation bracket

• two No. 12-24 x 1/2 in. self-tapping hex

washer-head screws

• 5 mm manual crank
For GGA models:

Special Tools Needed

• Drill with a 3/16 in. (No. 15, 4.57 mm) drill bit

• Torque wrench with 10 mm socket

• 7 mm and 5/16 in. (8 mm) nut driver

• Digital voltmeter

Spring Return Direction

The actuator is factory set to spring return in a
Counterclockwise (CCW) direction.

Clockwise (CW)

To change the spring return direction to CW, refer to
Figure 1 and proceed as follows:

1. Turn the actuator over. Use a flat-blade
screwdriver to release the locking clip, and remove
it from the coupler.

2. Remove the coupler and sleeve from the front of
the actuator, and slide the sleeve off the coupler.

• one M9000-106 pluggable 4-terminal block
For GGC models:

• two M9000-105 pluggable 3-terminal blocks

• one M9000-106 pluggable 4-terminal block

© 2017 Johnson Controls 1
Part No. 34-636-461, Rev. J www.johnsoncontrols.com

Figure 1: Changing the Spring Return Direction

CCW Spring Return DirectionCW Spring Return Direction

Guide Marks

Front

0

0

9

0

9

0

3

0

3

0

6

0

6

0

Guide Marks

Back

Triangle on Each Scale to Mar k Scale Selection

Gap in Sle ev e R im

Smooth Side of Sl eeve

(See Figure 3.)

209 mm

211 mm

213 mm

0

U-bolt

with

Clamp

Nuts (2)

Anti-rotation

Bracket

Note: “A” is the distance from the center of
the holes in the anti- rotation brac k et to
the center of the shaft. (See Table 1.)

Shaft
Center

A

Manual

Crank

Inserted in

the Override

Gear

Coupler

Position
Indicator

9

0

9

0

6

0

60

3

0

3

0

0

0

3. Insert the sleeve into the back of the actuator with
the smooth half of the sleeve inserted first. Make
sure the gap in the sleeve rim aligns with the
two guide marks on the back of the actuator shown
in Figure 2.

Note: The drive direction of the actuator is reversed
when the sleeve is changed from the front to the back
of the actuator.

Figure 2: Location of Guide Marks

4. Align the tab on the coupler with the gap in the
sleeve rim, and insert the coupler into the front of
the actuator.

5. Replace the locking clip to secure the coupler and
sleeve in the actuator.

Mounting

IMPORTANT: Make sure the space between the

back of the actuator and the mounting surface is at
least 5/32 in. (4 mm).

M9216 actuators may be mounted in any convenient
orientation. They may be installed on a 3/8 to 3/4 in.
(9.5 to 19 mm) round or a 3/8 to 5/8 in. (9.5 to 16 mm)
square shaft, 3 in. (76 mm) or longer. If the shaft is
less than 3 in. (76 mm) long, install an extension
recommended by the damper or valve manufacturer.
For 1 in. (25.4 mm) outside diameter shafts, use the
M9000-154 1 in. Jackshaft Coupler.

To mount the actuator, proceed as follows:

IMPORTANT: The tab on the anti-rotation bracket
must fit midpoint in the actuator slot to prevent
actuator binding and premature wear.

1. Refer to the “A” Dimensions in Table 1 and
Figure 3 to ensure the tab on the anti-rotation
bracket fits midway in the actuator slot.

Table 1: Shaft Sizes and Distances from
the Anti-rotation Bracket to Shaft Center

Shaft Diameter 5/8 in. 1/2 in. 3/8 in.

“A” Dimensions 8-1/4 in. 8-5/16 in. 8-3/8 in.

6. Fill in the triangle on the actuator cover with a

Counterclockwise

For the actuator to spring return in a CCW direction,
refer to Figure 3 and proceed as follows:

1. Turn the actuator over. Use a flat-blade

2. Remove the coupler from the front of the actuator

3. Insert the sleeve into the front of the actuator with

Note: Make sure the gap in the sleeve rim aligns with
the two guide marks on the front of the actuator.

4. Repeat Steps 4, 5, and 6 of the previous section.

marking pen to indicate the scale being used.

screwdriver to release the locking clip, and remove
it from the coupler.

and the sleeve from the back of the actuator.

the smooth half of the sleeve inserted first.
(See Figure 2.)

Figure 3: Mounting Positions

2 M9216 Series Electric Spring Return Actuators Installation Instructions

No. 12-24 Sheet
Metal Screws (2)

Slot for Bracket

Anti-r otation Bracket

Damper
Frame

Tab

Cover Screw

Note: Rotation limiters are shown
factory set in the ful ly down
position for 90° rotation.

0

3

0

6

0

9

0

0

3

0

Limit Sto p

Screws

(2 on Each

Limiter)

Rotation
Limiters (2)

0

10

30

20

(Increments
correspond
to thos e on
the opposite
side.)

2. Bend or cut the anti-rotation bracket to fit the
damper frame or duct as shown in Figure 4.

Figure 4: Anti-rotation Bracket Positions

3. Use the anti-rotation bracket as a guide, and drill
the holes in the damper frame or duct for the
bracket (based on the measurements obtained in
Table 1 and Figure 3).

Note: When installing the actuator to a
Johnson Controls damper, use the existing holes in the
damper frame.

4. Attach the anti-rotation bracket to the damper
frame or duct with the two self-tapping screws
provided, using a 1/4 in. (7 mm) flat-blade
screwdriver or 5/16 in. (8 mm) nut driver.

Rotation Range

The actuator is factory set for 0 to 93° rotation. The
rotation range is changed by adjusting the rotation
limiters. This may be done by using an input signal or
the manual crank. To change the rotation range using
the manual crank:

IMPORTANT: Turn the manual crank in a
CW direction only, unless locking a new position.

1. Push the manual crank firmly into the manual
override gear (shown in Figure 3), and wind in a
CW direction until the position indicator reaches
the 45° position.

2. Lock this position by winding the manual crank
1/4 turn CCW or until a slight resistance is felt.

3. Use a 7 mm nut driver to loosen the screws on the
rotation limiter. (See Figure 5.)

IMPORTANT: Do not overtighten the mounting
screws to avoid stripping the threads.

5. Slide the actuator onto the damper shaft,
positioning the anti-rotation bracket tab into the slot
at the bottom of the actuator. (See Figure 4.)

6. Insert the manual crank. Push it in firmly, and turn
it CW four or five turns (position indicator should
be between the 3 and 5° mark on the actuator
scale). Turn the manual crank 1/4 turn CCW to
lock this position.

7. Close the damper tightly.

8. Keeping the actuator flat, evenly hand tighten each
clamp nut onto the U-bolt. Secure the U-bolt to the
damper shaft to achieve a torque of 100 to
125 lb∙in (11 to 14 N∙m).

9. Turn the manual crank CW to release the spring,
and remove the manual crank. (The actuator
spring returns to its starting position.)

10. Verify that the actuator rotates freely throughout

the range. (This may be done by applying a full
stroke control signal or reinserting the manual
crank and turning it CW to rotate the coupler to the
fully open position.)

Figure 5: Rotation Limiters

4. Slide the rotation limiter to the desired position,
and retighten the screws to a maximum of
30 lb∙in (3.4 N∙m).

Examples of rotation limiter adjustments:

• For a rotation range of 30°, adjust both limiters

fully up.

• For a range of 45°, adjust one rotation limiter

to 30° and the other to 15°.

• For a range of 60°, adjust one limiter to 30°,

and leave the other at 0°.

5. Reinsert the manual crank into the manual
override gear.

6. Repeat Steps 2 through 5 to set the rotation range
for the second rotation limiter.

7. Release the manual crank spring lock by winding
the crank 1/4 turn in a CW direction.

M9216 Series Electric Spring Return Actuators Installation Instructions 3