Johnson Controls VA-748x Catalog Page

VA-7480 Electric Valve Actuator

VA-748x Electric Valve Actuators

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 Selection Chart

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)

• 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

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.

Technical Specifications

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

Input Impedance VA-7480-0312 3,900 ohms

VA-7482-xxx2 100,000 ohms VA-7480-0312

Electrical Connections

Mechanical Connections

Protection NEMA 2, IP43

Output Force

Mechanical Stroke 0.25 in. (6.3 mm) maximum Full Stroke Cycle Time Floating 13 s/mm, proportional 8 s/mm

Full Stroke Cycles

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-7482-0312 VA-7482-8002-RA

VA-7482-9002-RA

VA-7480-0312 VA-7482-0312

VA-7482-8002-RA VA-7482-9002-RA

VA-7480-0312 VA-7482-0312

VA-7482-8002-RA VA-7482-9002-RA

Direction: Direct (drive down) or reverse (drive up) with input signal increase

18 AWG cable; 118 in. (3 m) long

18 AWG cable; 59 in. (1.5 m) long

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

21.5 lb (96 N) minimum

31.4 lb (140 N) minimum

250,000

150,000

The performance specifications are nomina l and conf orm to accep table industr y standar ds. For ap plications a t condition s beyond th ese specification s, consult the local Johnson Controls o ffice. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2016 Johnson Controls, Inc.

www.johnsoncontrols.com

VA-748x Electric Valve Actuators (Continued)

VA-748x Series Electric Valve Actuators

Ambient Storage Conditions -4 to 149°F (-20 to 65°C), noncondensing Compliance United States Tested per UL2043. Suitable for Use in Other Environmental Air Space (Plenums) in Accord ance with

Section 300.22 (C) of the National Electrical Cod e. UL 60730-1 Listed Type 2 Enclosure, File E194024 XAPX XAPX7

Canada CSA C22.2 No. 139 Certified, File LR85083, Class 3221 01

Europe CE Mark – Johnson Controls, Inc. declares that this product is in compliance with the essential

requirements and other relevant provisions of the EMC Directive 2004/108/EC and Low Voltage Directive 2006/95/EC.

The performance specifications are no minal and co nform t o acceptab le ind ustry standar ds. For appl ications at condition s beyond these specifica tions, consult the local Johnson Co ntrols office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2016 Johnson Controls, Inc.

www.johnsoncontrols.com