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Johnson Controls VA-78*0-***-2 Series, Product Bulletin, Page: 5 / 11

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Johnson Controls VA-78*0-***-2 Series Product Bulletin Download Page 5

VA7800 Series Electric Valve Actuators Product Bulletin

5

Mounting

When mounting the actuator on a valve, the following 
precautions are recommended:

•

Never cover the actuator with insulating material.

•

Allow sufficient clearance to remove the actuator.

•

Mount the valve in an upright angle or at an angle 
less than 90° from the vertical for fluid 
temperatures up to 212°F (100°C).

•

Orient the actuator so that the yoke supports are 
one above the other when mounting the valve 
horizontally.

•

Install the valve with the stem horizontal and 
insulate the pipe to minimize heat transfer to the 
actuator for fluid temperatures above 212°F 
(100°C).

Figure 3:  VA78x0-HGx-2 Wiring Diagram

Figure 4:  VG7800 Mounting 

FIG

:M

T

_7

800

Summary of Contents for VA-78*0-***-2 Series

Page 1: ...enefits Automatic Stroke Adjustment Provides easy quick and precise commissioning Manual Override as Standard Allows manual positioning of valve for easy commissioning and servicing NEMA 2 IP54 Enclosure Protection Allows installation in a wide range of environments Unique Swing Gate Yoke Offers fast and secure attachment to the valve Brushless Motor Ensures low energy consumption and long life Pr...

Page 2: ...ted this stem feature is not available Operation The VA7800 Series of actuators offers up to 1 in 25 mm of linear stroke for the operation of Johnson Controls VG7000 Series Bronze Control Valves The actuators interface to all threaded stem VG7000 Valves and can be used on all stainless steel trim VG7000 series valves from 1 2 in to 2 in The actuator should not be used on brass trim VG7000 series v...

Page 3: ...or standard ranges of 0 to 20 VDC 0 to 20 mA or 2 to 10 VDC 4 to 20 mA control in the field At the end of a span the actuator control signal has a buffer zone of 0 3 V 0 6 mA to ensure definite valve close off You can set the actuators for custom signal ranges Minimum setpoint is 0 to 6 VDC 0 to 12 mA and maximum input signal is 3 to 10 VDC 6 to 20 mA Position feedback signal is also available in ...

Page 4: ...ams Figure 2 and Figure 3 show detailed diagrams for the wiring configurations of the VA7800 Series Electric Valve Actuators Table 4 VA78x0 HGx 2 Series Actuators LED Status and Color Indicators LED Color Status Green Yellow Red Off Power off Blink Motor running Power on after a black out1 Temporary fault possible valve sticking2 High temperature3 Fast Blink Calibrating Input signal failure Contin...

Page 5: ...ount the valve in an upright angle or at an angle less than 90 from the vertical for fluid temperatures up to 212 F 100 C Orient the actuator so that the yoke supports are one above the other when mounting the valve horizontally Install the valve with the stem horizontal and insulate the pipe to minimize heat transfer to the actuator for fluid temperatures above 212 F 100 C Figure 3 VA78x0 HGx 2 W...

Page 6: ...istive 1 4 HP 1 2 and 3 4 in VG7000 5 16 in valve stroke 1 and 1 1 4 in VG7000 1 2 in valve stroke 1 1 2 and 2 in VG7000 3 4 in valve stroke VA7810 ADC 2 X X X 8 X X 48 76 114 VA7810 AGA 2 X X X 3 X 48 76 114 VA7810 AGC 2 X X X 3 X X 48 76 114 VA7810 HGA 2 X X X X 6 X X 24 48 38 76 57 114 VA7810 HGC 2 X X X X 6 X X X 24 48 38 76 57 114 VA7820 HGA 2 X X X X 11 X X 24 48 38 76 57 114 VA7820 HGC 2 X ...

Page 7: ...VA7800 Series Electric Valve Actuators Product Bulletin 7 Dimensions Figure 5 Dimensions in mm 8 35 212 4 56 116 9 6 244 5 9 Minimum 150 ...

Page 8: ...troke 76 seconds 3 4 in stroke 114 seconds Ambient Operating Conditions 23 to 131 F 5 to 55 C 10 to 90 RH Noncondensing Enclosure Rating NEMA 2 IP54 Electrical Connection 48 in 1 2 m UL 758 Type AWM Halogen Free Cable with 18 AWG 0 85 mm2 Conductors and 0 25 in 6 mm Ferrule Ends Dimensions 9 6 x 4 56 x 8 35 in 244 x 116 x 212 mm Materials Gearbox and Yoke Die Cast Aluminum Cover Resin ABS PC UL94 ...

Page 9: ...ed Switch Selectable Slow Factory Setting 5 16 in stroke 48 seconds 1 2 in stroke 76 seconds 3 4 in stroke 114 seconds Fast 5 16 in stroke 24 seconds 1 2 in stroke 38 seconds 3 4 in stroke 57 seconds Ambient Operating Conditions 23 to 131 F 5 to 55 C 10 to 90 RH Noncondensing Ambient Storage Conditions 40 to 176 F 40 to 80 C 5 to 95 RH Noncondensing Enclosure Rating NEMA 2 IP54 Electrical Connecti...

Page 10: ...onds 1 2 in stroke 38 seconds 3 4 in stroke 57 seconds Ambient Operating Conditions 23 to 131 F 5 to 55 C 10 to 90 RH Noncondensing Ambient Storage Conditions 40 to 176 F 40 to 80 C 5 to 95 RH Noncondensing Enclosure Rating NEMA 2 IP54 Electrical Connection 48 in 1 2 m UL 758 Type AWM Halogen Free Cable with 18 AWG 0 85 mm2 Conductors and 0 25 in 6 mm Ferrule Ends Dimensions 9 6 x 4 56 x 8 35 in 2...

Page 11: ... their respective owners 2018 Johnson Controls Inc Building Efficiency 507 E Michigan Street Milwaukee WI 53202 European Single Point of Contact NA SA Single Point of Contact APAC Single Point of Contact JOHNSON CONTROLS WESTENDHOF 3 45143 ESSEN GERMANY JOHNSON CONTROLS 507 E MICHIGAN ST MILWAUKEE WI 53202 USA JOHNSON CONTROLS C O CONTROLS PRODUCT MANAGEMENT NO 22 BLOCK D NEW DISTRICT WUXI JIANGSU...

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