User Guide

M9102-AGA-3S and M9104-xGA-3S Series Electric Non-Spring Return Actuators Installation Instructions 5
M9104-GGA-3S
The M9104-GGA Series Electric Non-Spring Return
valve actuators require AC 24 V power and a DC 0(2)
to 10 V or 0(4) to 20 mA controller input signal. These
electric actuators include M3 screw terminals; see
Figure 11 for proper wiring.
M9104-GGA actuators are factory set for Direct Acting
(DA) mode and for a DC 0 to 10 V input control signal.
In DA mode, a minimum control signal drives the
actuator to the full Counterclockwise (CCW) position,
and a maximum control signal drives the actuator to the
full Clockwise (CW) position.
For Reverse Acting (RA) operation, a minimum control
signal drives the actuator to the full CW position and a
maximum signal drives the actuator to the full CCW
position.
To change the factory settings (DA, 0-10 V), remove
the actuator cover and adjust the switches on the
circuit board as shown in Figure 12.
Setup and Adjustments
Commissioning
After wiring is completed, apply power to the VAV or
VVT controller and provide input signals to the actuator
to drive it at least one complete cycle open and closed.
Troubleshooting
If the M9102 or M9104 Series Electric Non-Spring
Return Actuator is not responding or working properly:
• verify that the actuator assembly is properly
secured to the duct
• check that all electrical connections are complete
and that power is applied
• verify that the damper fully opens and closes, using
the gear release button on the actuator
• check that the actuator stroke is set for the desired
application
Figure 11: M9104-GGA-3S Control Wiring
Diagram
+
213
AC
24 V
0(2)...10 V
Y
DC 0(2)...10 V Control
~
DC 0(2)...10 V
~
0(4)...20 mA Control with
External Resistor
21
0(4)...20 mA
3
AC
24 V
0(2)...10 V
Y
~
~
+
!
CAUTION: Risk of Electric Shock.
Disconnect the power supply before
making electrical connections to avoid
electric shock.
!
CAUTION: Risk of Property Damage.
Do not apply power to the system before
checking all wiring connections. Short
circuited or improperly connected wires
may result in permanent damage to the
equipment.
IMPORTANT: Make all wiring connections in
accordance with local, national, and regional
regulations. Do not exceed the electrical ratings of
the M9102 or M9104 Series Electric Non-Spring
Return Valve Actuator.
Figure 12: M9104-GGA Factory Switch Setting