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2 M9106-AGx-2N0x Series Electric Non-spring Return Actuators Product Bulletin
Application
IMPORTANT: This device is not designed or
intended to be used in or near environments where
explosive vapors or gases could be present, or
environments where substances corrosive to the
device’s internal components could be present.
The actuators are used to position balancing, control,
round, and zone dampers in typical Heating,
Ventilating, and Air Conditioning (HVAC) applications.
They are also used to position the blades in a
VAV box.
The actuators mount directly to the surface of a
VAV box, round damper, or small rectangular damper
with a single No. 10 self-drilling sheet metal screw
(included). There are no additional linkages or couplers
required. Clearly labeled electrical terminals simplify
installation. Refer to the damper or VAV box
manufacturer’s information to select the proper timing
for the actuator.
Note: The damper rotation time must be defined at
the controller, and the damper point definition must
match the rotation time of the actuator.
Operation
IMPORTANT: The M9106-AGx-2N0x Series
actuator is intended to control equipment under
normal operating conditions. Where failure or
malfunction of an M9106-AGx-2N0x 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 M9106-AGx-2N0x actuator must be
incorporated into and maintained as part of the
control system.
When combined with a VAV controller, the actuator
provides reliable, integrated damper control. See the
M9106-AGx-2N0x Series Electric Non-spring Return
Actuators Application Note, (LIT-2681116) for various
configurations with and without the DPT-2015
differential pressure transmitter.
A 24 VAC signal from the controller to the CW or
CCW terminal of the actuator causes the motor to
rotate in the proper direction, and moves the
damper blades open or closed. When the controller
stops sending the signal, the actuator remains in place.
Note: To avoid excessive wear or drive time on the
motor, use a controller and/or software that provides a
time-out function to remove the signal at the end of
rotation (stall).
The -2N01 model rotates at a nominal rate of 1.5° per
second (90° in 1 minute). The -2N02 models rotate at
a nominal rate of 0.75° per second (90° in 2 minutes).
Rotation is field adjustable from 30 to 90°. Actual
rotation time for actuators using less than 90° rotation
must be determined, and that value must be used with
the controller software. For example, the travel time for
60° rotation is 40 seconds for the -2N01 model and
80 seconds for a -2N02.
The M9106-AGS-2N02 is prewired with the 20 in.
(0.5 m) CBL-2000-1 Wiring Harness and the
DPT-2015, which is connected to the airflow pickup
device of the VAV box. The DPT-2015 measures
differential pressure and generates a proportional
0.5 to 4.5 VDC signal. The voltage signal from the
DPT-2015 is read by the VAV controller and converted
to airflow in cubic feet per minute (cfm). The wiring
harness is used to connect the transmitter and
actuator to the VAV Series controller for simplified
installation.
Only zero calibration is required, which is performed
within the controller. The VAV controller must be
provided with the correct “K” factor and VAV box size
to perform the calculations. Refer to the
HVAC PRO™
User's Guide, Appendix B: VAV Controller Flow
Calculation Constants (LIT-6375185
).
M9106-AGx-2N0x models are replacements for the
one- and two-minute EDA-2040 and ATP-2040
actuators. To replace the EDA-2040 or ATP-2040
originally supplied with an EDA-2040-102 switch kit,
use either an:
• M9106-AGx-2N0x actuator with the DMPR-KC010
switch kit (See Table 2.) or
• M9106-AGC-2 actuator: see the
M9106-xGx-2
Series Electric Non-spring Return Actuators
Product Bulletin (LIT-2681123) and M9106-xGx-2
Series Electric Non-spring Return Actuators
Installation Instructions (Part No. 34-636-1085) for
more information.