Product Overview

The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office.
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2016 Johnson Controls, Inc.
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Code No. LIT-1900866
Issued January 20, 2016
Description
VA-748x Series Electric Valve Actuators
provide floating or proportional control in
HVAC applications. The compact design of
this actuator series makes it ideal for
installations in confined locations, such as fan
coil applications.
The VA-748x Series Actuator is designed for
field mounting onto the terminal unit valves
made by Johnson Controls and its
competitors. Due to the innovative concept of
auto stroke detection, the VA-748x actuator
can be installed over most of the conventional
terminal unit valves in the market and pressure
independent control valves with variable
strokes.
Refer to the VA-748x Electric Valve Actuator
Product Bulletin (LIT-12011893) for important
product application information.
Features
Repair Information
If the VA-748x Electric Actuator fails to
operate within its specifications, replace the
unit. For a replacement VA-748x Electric
Valve Actuator, contact the nearest
Johnson Controls® representative.
• Auto-commissioning simplifies installation,
since models require no adjustments in the
field
• Auto-shutoff actuator motor extends
actuator life by reducing drive time and
excessive motor wear
• Durable, heat-stabilized, plastic resin
enclosure allows the actuator to be used in
applications with fluid temperatures up to
203°F (95°C)
• Actuator can be mounted after the valve
body is piped, simplifying installation and
providing application flexibility
• Compact design allows for installation in
confined locations, such as fan coil
applications
• Operating status LED provides direct,
visual indication of the actuator operating
status
• Actuator can be rotated after it is mounted
on the valve body, simplifying installation
by allowing the actuator wiring entry to be
located in any direction
VA-7480 Electric Valve Actuator
Selection Chart
Technical Specifications
Code Number Power Supply Control Type Actuator Speed Mounting Thread Nut Cable Length (Factory Mounted)
VA-7480-0312 24 VAC Floating 13 s/mm M28 x 1.5 118 in. (3 m)
VA-7482-0312 24 VAC/VDC Proportional 8 s/mm M28 x 1.5 118 in. (3 m)
VA-7482-8002-RA 24 VAC/VDC Proportional 8 s/mm M30 x 1.5 59 in. (1.5 m)
VA-7482-9002-RA 24 VAC/VDC Proportional 8 s/mm M30 x 1.5 59 in. (1.5 m)
VA-748x Series Electric Valve Actuators
Power Requirements VA-7480-0312 24 VAC ±15% at 50/60 Hz; 2.5 VA at maximum power supply; Class 2
VA-7482-xxx2 24 VAC ±15% at 50/60 Hz; 24 VDC ±15% at 2.5 VA at maximum power supply; Class 2
Input Signal VA-7480-0312 24 VAC, 50/60 Hz
VA-7482-xxx2 0 to 10 VDC
Input Signal Adjustments VA-7480-0312 None
VA-7482-xxx2 Input Signal: 0 to 10 VDC, 2 to 10 VDC, 0 to 5 VDC, 5 to 10 VDC, 0 to 20 mA, or 4 to 20 mA
Direction: Direct (drive down) or reverse (drive up) with input signal increase
Input Impedance VA-7480-0312 3,900 ohms
VA-7482-xxx2 100,000 ohms
Electrical Connections
VA-7480-0312
VA-7482-0312
18 AWG cable; 118 in. (3 m) long
VA-7482-8002-RA
VA-7482-9002-RA
18 AWG cable; 59 in. (1.5 m) long
Mechanical Connections
Threaded coupling for Johnson Controls VG4000, VG5000, M28x1, and M28x5 Series Zone Valves
Threaded coupling for Johnson Controls VG6000, V5000, VP100, M30x1, and M30x5 Series Zone
Valves
Protection NEMA 2, IP43
Output Force
VA-7480-0312
VA-7482-0312
21.5 lb (96 N) minimum
VA-7482-8002-RA
VA-7482-9002-RA
31.4 lb (140 N) minimum
Mechanical Stroke 0.25 in. (6.3 mm) maximum
Full Stroke Cycle Time Floating 13 s/mm, proportional 8 s/mm
Full Stroke Cycles
VA-7480-0312
VA-7482-0312
250,000
VA-7482-8002-RA
VA-7482-9002-RA
150,000
Audible Noise Rating <30 dBA
Fluid Temperature Limits 35 to 203°F (2 to 95°C)
Ambient Operating Conditions 32 to 122°F (0 to 50°C), noncondensing
VA-748x Electric Valve Actuators