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Johnson Controls VA7820-HGA-2 24VAC Proportional Spring Return Globe Valve Actuator
- Regular price
- $1,099.00
- Sale price
- $1,099.00
- Regular price
-
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Product Description P/N: VA7820-HGA-2
Description
The Johnson Controls VA7820-HGA-2 is a direct-mount proportional electric valve actuator designed for modulating control of compatible globe valves in commercial HVAC systems. Johnson Controls part number VA7820-HGA-2 operates from 24 VAC power and combines spring-return operation, automatic stroke adjustment, manual override, and 0–10 VDC proportional control for dependable hydronic valve positioning.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Johnson Controls |
| Category | HVAC & Building Automation |
| Part Number | VA7820-HGA-2 |
| Subcategory | Valve Actuators |
| Series | VA7800 Series |
| Product Type | Electric Globe Valve Actuator |
| Actuator Operation | Proportional / Spring Return |
| Fail-Safe Action | Spring Return, Retracted Valve Position |
| Power Supply | 24 VAC |
| Power Consumption | Approx. 3 VA |
| Control Signal | 0–10 VDC Proportional |
| Valve Interface | Direct Mount |
| Stroke Setup | Automatic Stroke Adjustment |
| Manual Override | Yes |
| Position Indication | Stroke Position Indicator |
| Status Indication | LED |
| Operating Temperature | 23°F to 131°F (-5°C to 55°C) |
| Enclosure Rating | NEMA 2 / IP54 |
| Electrical Connection | 48 in UL 758 Type AWM Halogen-Free Cable, 18 AWG Conductors |
| Weight | Approx. 2.4 kg (5.3 lb) |
Information About VA7820-HGA-2
The VA7820-HGA-2 is a Johnson Controls VA7800 Series electric actuator engineered for direct installation on compatible HVAC globe valve assemblies. Its proportional control system positions the valve according to a 0–10 VDC command, while automatic stroke adjustment simplifies commissioning by adapting actuator travel to the installed valve. The spring-return mechanism is configured for a retracted valve position during loss of operating power, providing a defined fail-safe response for the controlled hydronic circuit. A manual override, visible stroke-position indicator, status LED, IP54/NEMA 2 housing, and factory-installed 48-inch cable support installation, setup, inspection, and maintenance in commercial heating and cooling systems.
Key Features:
- Spring-return function: Returns the actuator to its designated fail-safe position when operating power is removed.
- Retracted fail-safe position: Configured to retract the valve stem during spring-return operation.
- Proportional control: Accepts a 0–10 VDC command for continuous modulating valve positioning.
- 24 VAC operation: Uses standard low-voltage power commonly available in commercial HVAC control systems.
- Direct-mount construction: Installs directly onto compatible globe valves without a separate linkage assembly.
- Automatic stroke adjustment: Automatically adapts actuator travel to the connected valve during setup.
- Manual override: Allows valve positioning during commissioning, inspection, or service procedures.
- Stroke position indicator: Provides visual indication of the current actuator and valve position.
- Status LED: Provides convenient visual operating-status information during installation and troubleshooting.
- Low power consumption: Approximately 3 VA operating requirement helps minimize control-system electrical demand.
- Protected enclosure: NEMA 2 and IP54 construction provides protection for applicable indoor HVAC installations.
- Factory cable: Includes an approximately 48-inch halogen-free electrical cable with 18 AWG conductors.
The VA7820-HGA-2 delivers the reliability and precision required for proportional hydronic valve control and spring-return operation in commercial HVAC systems.
Description
The Johnson Controls VA7820-HGA-2 is a direct-mount proportional electric valve actuator designed for modulating control of compatible globe valves in commercial HVAC systems. Johnson Controls part number VA7820-HGA-2 operates from 24 VAC power and combines spring-return operation, automatic stroke adjustment, manual override, and 0–10 VDC proportional control for dependable hydronic valve positioning.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Johnson Controls |
| Category | HVAC & Building Automation |
| Part Number | VA7820-HGA-2 |
| Subcategory | Valve Actuators |
| Series | VA7800 Series |
| Product Type | Electric Globe Valve Actuator |
| Actuator Operation | Proportional / Spring Return |
| Fail-Safe Action | Spring Return, Retracted Valve Position |
| Power Supply | 24 VAC |
| Power Consumption | Approx. 3 VA |
| Control Signal | 0–10 VDC Proportional |
| Valve Interface | Direct Mount |
| Stroke Setup | Automatic Stroke Adjustment |
| Manual Override | Yes |
| Position Indication | Stroke Position Indicator |
| Status Indication | LED |
| Operating Temperature | 23°F to 131°F (-5°C to 55°C) |
| Enclosure Rating | NEMA 2 / IP54 |
| Electrical Connection | 48 in UL 758 Type AWM Halogen-Free Cable, 18 AWG Conductors |
| Weight | Approx. 2.4 kg (5.3 lb) |
Information About VA7820-HGA-2
The VA7820-HGA-2 is a Johnson Controls VA7800 Series electric actuator engineered for direct installation on compatible HVAC globe valve assemblies. Its proportional control system positions the valve according to a 0–10 VDC command, while automatic stroke adjustment simplifies commissioning by adapting actuator travel to the installed valve. The spring-return mechanism is configured for a retracted valve position during loss of operating power, providing a defined fail-safe response for the controlled hydronic circuit. A manual override, visible stroke-position indicator, status LED, IP54/NEMA 2 housing, and factory-installed 48-inch cable support installation, setup, inspection, and maintenance in commercial heating and cooling systems.
Key Features:
- Spring-return function: Returns the actuator to its designated fail-safe position when operating power is removed.
- Retracted fail-safe position: Configured to retract the valve stem during spring-return operation.
- Proportional control: Accepts a 0–10 VDC command for continuous modulating valve positioning.
- 24 VAC operation: Uses standard low-voltage power commonly available in commercial HVAC control systems.
- Direct-mount construction: Installs directly onto compatible globe valves without a separate linkage assembly.
- Automatic stroke adjustment: Automatically adapts actuator travel to the connected valve during setup.
- Manual override: Allows valve positioning during commissioning, inspection, or service procedures.
- Stroke position indicator: Provides visual indication of the current actuator and valve position.
- Status LED: Provides convenient visual operating-status information during installation and troubleshooting.
- Low power consumption: Approximately 3 VA operating requirement helps minimize control-system electrical demand.
- Protected enclosure: NEMA 2 and IP54 construction provides protection for applicable indoor HVAC installations.
- Factory cable: Includes an approximately 48-inch halogen-free electrical cable with 18 AWG conductors.
The VA7820-HGA-2 delivers the reliability and precision required for proportional hydronic valve control and spring-return operation in commercial HVAC systems.