The Alerton VLD 362 is a versatile and advanced HVAC controller that allows you to monitor and control your heating, ventilation, and air conditioning systems with ease. However, wiring the VLD 362 can be a daunting task, especially if you’re new to the system. But don’t worry, as this article will guide you through the entire wiring process and provide you with all the information you need to get started.
What Is the Alerton VLD 362?
Before we dive into the wiring details, it’s important to understand what the Alerton VLD 362 is and what it can do. The VLD 362 is an advanced HVAC controller that utilizes the BACnet protocol to communicate with other BACnet devices on your network. It can also interface with other building automation systems, such as lighting and security.
The VLD 362 features six universal inputs, two analog outputs, and eight binary outputs. It also has a built-in LCD display and keypad for local control and monitoring. In addition, it can be programmed with Alerton’s Envision for BACtalk software, which allows you to create custom control sequences and schedules.
What Are the Benefits of Using the Alerton VLD 362?
There are several benefits to using the Alerton VLD 362 in your HVAC system, including:
- Improved energy efficiency
- Reduced maintenance costs
- Enhanced occupant comfort
- Remote access and control
- Real-time monitoring and diagnostics
Wiring the Alerton VLD 362
Now that you have a basic understanding of the VLD 362, let’s move on to the wiring details. The following section will provide you with a step-by-step guide for wiring the VLD 362, including wiring diagrams and explanations for each connection.
Step 1: Power Supply
The first step in wiring the VLD 362 is to connect the power supply. The VLD 362 requires a 24V AC/DC power supply, which should be connected to the L1 and L2 terminals on the VLD 362.
| L1 | Power Supply (+) |
| L2 | Power Supply (-) |
Make sure to use the correct wire gauge for your power supply, as using a wire that is too small can result in voltage drop and poor performance.
Step 2: Inputs
The VLD 362 has six universal inputs, which can be used to monitor various sensors and signals in your HVAC system. These inputs are labeled AI1 through AI6 and can be connected as follows:
| AI1-AI6 (+) | Sensor (+) |
| AI1-AI6 (-) | Sensor (-) |
Make sure to use shielded cable for your inputs to reduce interference and noise. You should also ground the shield at one end only, to prevent ground loops.
Step 3: Analog Outputs
The VLD 362 has two analog outputs, labeled AO1 and AO2, which can be used to control modulating devices such as valves and dampers. These outputs can be connected as follows:
| AO1 (+) | Controlled Device (+) |
| AO1 (-) | Controlled Device (-) |
| AO2 (+) | Controlled Device (+) |
| AO2 (-) | Controlled Device (-) |
Make sure to use the correct wire gauge for your analog outputs, as using a wire that is too small can result in poor control and accuracy. You should also use shielded cable for your outputs, to reduce interference and noise.
Step 4: Binary Outputs
The VLD 362 has eight binary outputs, labeled DO1 through DO8, which can be used to control on/off devices such as relays and contactors. These outputs can be connected as follows:
| DO1-DO8 (+) | Controlled Device (+) |
| DO1-DO8 (-) | Controlled Device (-) |
Make sure to use the correct wire gauge for your binary outputs, as using a wire that is too small can result in poor control and reliability.
Frequently Asked Questions
1. What Is the BACnet Protocol?
The BACnet protocol is a widely used standard for building automation and control networks. It allows various devices and systems to communicate with each other, regardless of manufacturer or type.
2. Can I Use the Alerton VLD 362 with Other Building Automation Systems?
Yes, the Alerton VLD 362 can interface with other building automation systems, such as lighting and security, through the use of BACnet. This allows for seamless integration and control of all your building systems.
3. How Do I Program the Alerton VLD 362?
The Alerton VLD 362 can be programmed with Alerton’s Envision for BACtalk software, which allows you to create custom control sequences and schedules. The software can be downloaded from Alerton’s website and requires a BACnet IP connection to the VLD 362.
4. What Are the Benefits of Using BACnet?
The benefits of using BACnet include improved interoperability, ease of integration, reduced installation time and cost, and enhanced system performance and reliability.
5. Can I Monitor and Control the Alerton VLD 362 Remotely?
Yes, the Alerton VLD 362 can be accessed and controlled remotely through the use of an IP connection and web interface. This allows you to monitor and adjust your HVAC system from anywhere with an internet connection.
Conclusion
Wiring the Alerton VLD 362 can seem like a daunting task, but with the help of this article, you should now have a better understanding of how to connect the various inputs and outputs. Remember to use the correct wire gauge and shielded cable for your connections, and make sure to ground your shield at one end only. By following these guidelines, you can ensure a reliable and efficient HVAC system that is easy to monitor and control.
