VA9203-xxx-xx Series Electric Spring Return Valve
Actuators
Product Bulletin
VA9203-GGx-2Z, VA9203-AGx-2Z, VA9203-Bxx-2
The VA9203-xxx-xx Series Electric Spring Return Valve
Actuators are direct-mount valve actuators. These
bidirectional actuators are used to provide accurate
positioning on Johnson Controls® VG1000 Series 1/2,
3/4, and 1 in. (DN15, DN20, and DN25) ball valves in
Heating, Ventilating, and Air Conditioning (HVAC)
applications. A mechanical spring return system
provides rated torque with or without power applied to
the actuator. The series includes the following control
options:
•On/Off, 24 V, or 85 to 264 VAC power
•On/Off and Floating Point, 24 V power
•Proportional, 24 V power, for 0(2) to 10 VDC or
0(4) to 20 mA Control Signal
An accessory crankarm and remote mounting kit are
available for applications where the actuator cannot be
direct-coupled to the damper shaft. An optional line
voltage auxiliary switch indicates an end-stop position
or performs switching functions within the selected
rotation range.
Code No. LIT-12011702
Issued May 2018
Table 1: Features and Benefits (Part 1 of 2)
FeaturesBenefits
Direct Mounting with a Single ScrewReduces installation time and cost.
Electronic Stall DetectionProtects from overload at all angles of rotation. Power consumption is
reduced holding mode. The actuator may be stalled anywhere in its
rotation range without the need for mechanical end switches.
Double-Insulated ConstructionEliminates need for electrical ground connection for regulatory agency
Microprocessor-Controlled Brushless DC
Motor (-AGx and -GGx Models)
External Mode Selection Switch
(-AGx and -GGx Models)
Integral Cables with Colored and Numbered
Conductors
Integral 1/2 in. (13 mm) Threaded Conduit
Connector(s)
Optional Integrated Auxiliary SwitchProvides adjustable switch point with line voltage capability.
Plenum Rated ModelsEnable use in other environmental air spaces (plenums) in accordance
compliance.
Provides constant runtime independent of torque and ensures long life.
Permits control logic reversal for Floating Control (-AGx Models). Permits
calibration input signal range selection, and control logic reversal for
Proportional Control (-GGx Models).
Simplify installation and field wiring.
Simplify installation and field wiring.
with section 300.22(C) of the National Electric Code.
VA9203-xxx-xx Series Electric Spring Return Valve Actuators Product
Bulletin
1
Table 1: Features and Benefits (Part 2 of 2)
FeaturesBenefits
Optional Thermal BarrierProvides for 284°F (140°C) hot water or 15 psi saturated steam
applications.
Available Weather Shield for Field MountingProvides NEMA 3R protection for the actuator.
Override Control (Proportional Models Only)Supports manual control system override application through field wiring.
Underwriters Laboratories Inc.® (UL),
CE Mark, and C-Tick Compliance
Manufactured under International Standards
Organization (ISO) 9001 Quality Control
Standards
IMPORTANT: Use these VA9203-xxx-xx Series
Electric Spring Return Actuators only to control
equipment under normal operating conditions.
Where failure or malfunction of the electric actuator
could lead to personal injury or property damage to
the controlled equipment or other property,
additional precautions must be designed into the
control system. Incorporate and maintain other
devices, such as supervisory or alarm systems or
safety or limit controls, intended to warn of or protect
against failure or malfunction of the electric actuator.
VA9203-GGx-2Z Series Proportional Actuators
The VA9203-GGx-2Z Series Actuators provide
proportional modulation of VG1000 1/2, 3/4, and 1 inch
ball valves in HVAC systems that are controlled by an
electronic controller or positioner. The actuator
responds to 0 to 10 VDC or 2 to 10 VDC control
signals. With the addition of a 500 ohm resistor, the
actuator responds to a 0 to 20 mA or 4 to 20 mA signal.
A 0 to 10 VDC or 2 to 10 VDC feedback signal
indicates position and provides support for
master-subordinate applications.
Manual control system override applications are
supported through field wiring, and include:
•override to MIN position
•override to MAX position
•override to MIN, MID, and MAX position
The VA9203-GGA-2Z actuators include plenum-rated
cables and are specially configured for installation in
spaces used for environmental air-handling purposes,
other than ducts and plenums, as specified in National
Fire Protection Association (NFPA) 70: National
Electrical Code section 300.22(C), Other Space Used
for Environmental Air. The space over a hung ceiling,
when used for environmental air handling purposes, is
an example of the type of space for which these
actuators are configured.
VA9203-AGx-2Z Series On/Off and Floating
Point Actuators
The VA9203-AGx-2Z Series Actuators provide on/off
control or modulation of VG1000 1/2, 3/4, and 1 inch
ball valves in HVAC systems. Floating point control can
be provided from a triac or relay. On/off control can be
provided from a manual switch, controller, auxiliary
switch from a fan motor contactor, or similar device.
The VA9203-AGA-2Z actuators include plenum-rated
cables and are specially configured for installation in
spaces used for environmental air-handling purposes
other than ducts and plenums as specified in National
Fire Protection Association (NFPA) 70: National
Electrical Code section 300.22(C), Other Space Used
for Environmental Air. The space over a hung ceiling,
when used for environmental air handling purposes, is
an example of the type of space for which these
actuators are configured.
VA9203-xxx-xx Series Electric Spring Return Valve Actuators Product Bulletin
2
VA9203-Bxx-2 Series On/Off Actuators
The VA9203-Bxx-2 Series Actuators provide on/off
control of VG1000 1/2, 3/4, and 1 inch ball valves in
HVAC systems. On/off control can be provided from a
manual switch, controller, auxiliary switch from a fan
motor contactor, or similar device.
Operation
VA9203-xxx-xx Series Actuators provide 95º of
rotation. A graduated scale from 0% to 100% and a
position indicator provide visual indication of stroke.
When power fails during service, the mechanical spring
return system returns the valve to the home position.
VA9203-GGx-2Z Series Proportional Actuators
The VA9203-GGx-2Z Series uses a brushless DC
motor controlled by a microprocessor. The
microprocessor drives the motor at constant speed,
independent of torque. The microprocessor also
monitors the brushless DC motor’s rotation to prevent
damage to the actuator in a stall condition. The
actuator can be stalled anywhere within its rotation
range without the need for mechanical end switches.
Power consumption is reduced in the holding mode.
The VA9203-GGC-2Z version is provided with one
integrated, line-voltage-capable auxiliary Single-Pole,
Double-Throw (SPDT) switch. The switch point is
independently and continuously adjustable throughout
the full range of actuator stroke. The auxiliary switch is
double-insulated so an electrical ground is not
required.
VA9203-AGx-2Z Series On/Off and Floating
Point Actuators
The VA9203-AGx-2Z Series uses a brushless DC
motor controlled by a microprocessor. The
microprocessor drives the motor at constant speed,
independent of torque. The microprocessor also
monitors the brushless DC motor’s rotation to prevent
damage to the actuator in a stall condition. The
actuator can be stalled anywhere within its rotation
range without the need for mechanical end switches.
Power consumption is reduced in the holding mode.
The VA9203-AGB-2Z version is provided with one
integrated, line-voltage-capable auxiliary SPDT switch.
The switch point is independently and continuously
adjustable throughout the full range of actuator stroke.
The auxiliary switch is double-insulated so an electrical
ground is not required.
VA9203-Bxx-2 Series On/Off Actuators
The VA9203-Bxx-2 Series uses a DC brush motor
controlled by analog electronics. The actuator can be
stalled anywhere within its rotation range without the
need for mechanical end switches. Power consumption
is reduced in the holding mode. Two different voltage
ratings are available for on/off actuators.
•VA9203-BGx-2: AC 24 V 50/60 Hz or DC 24 V
power
•VA9203-BUx-2: AC 85 to 265 V 50/60 Hz power
The VA9203-BUx-2 actuators are double-insulated so
an electrical ground is not required. The VA9203-BxB-2
versions are provided with one integrated,
line-voltage-capable auxiliary SPDT switch. The switch
point is independently and continuously adjustable
throughout the full range of the actuator stroke. The
auxiliary switch is double-insulated so an electrical
ground is not required.
VA9203-xxx-xx Series Electric Spring Return Valve Actuators Product Bulletin
3
Wiring Diagrams
1
2
34
~
(+)
Y
COM
U
BLK
RED
GRY
ORN
+
+
12
34
~
(+)
Y
COM
U
BLK
RED
GRY
ORN
0(4)...20 mA
+
+
DC 0(2)...10 V Control
0(4)...20 mA Control with
External Resistor
AC/DC
24 V
DC 0(2)...10 V
AC/DC
24 V
DC 0(2)...10 V
DC 0(2)...10 V
Master-Subordinate Application
Y
DC 0(2)...10 V
+
U
+
1
2
34
BLK
RED
GRY
ORN
AC/DC
24 v
~
(+)
DC 0(2)...10 V
COM
+
1
2
34
BLK
RED
GRY
ORN
500 / 0.25 W
Ƽ
Figure 2: VA9203-GGx-2Z Control Wiring
Diagrams
Figure 3: Control Wiring Diagrams (Overrides)
VA9203-GGx-2Z Series Proportional Actuators
VA9203-xxx-xx Series Electric Spring Return Valve Actuators Product Bulletin
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