January 24th 2025

Fundamentals of ApacheHVAC Airside Controllers

Fundamentals of ApacheHVAC Airside Controllers

Understanding the intricate workings of HVAC systems is essential for achieving accurate building performance simulation. In IESVE software, ApacheHVAC airside controllers play a crucial role in the simulated operation of the HVAC system. Given their significance, understanding and mastering the functionality of these controllers is vital for any user.

In support of IESVE Software users who are navigating this complex yet critical element of HVAC systems, we’re excited to introduce our new on-demand video: Fundamentals of ApacheHVAC Airside Controllers. This tutorial breaks down the mechanics of all nine controllers in ApacheHVAC, showing users how to interpret results in VistaPro and tackle common challenges.

Figure 1: Sensed vs Controlled Variable

Fundamentals of ApacheHVAC Controllers

The Fundamentals of ApacheHVAC Controllers video is designed to provide both new and experienced users of IESVE Software with the knowledge needed to harness the full potential of ApacheHVAC controllers. By mastering these tools, users can:

  • Ensure Occupant Thermal Comfort and minimum ventilation is maintained
  • Optimize for energy efficiency and heat recovery
  • Engage and disengage Controls for Sizing HVAC Equipment
  • Improve the accuracy of predictive building simulation
  • Diagnose and resolve controller-related issues effectively

Whether you’re troubleshooting errors, reviewing simulation results, or exploring advanced control strategies, this video will serve as a valuable resource.

Covered in this video:

Types of Controllers

  • Independent Controllers
    • Time switch controller
    • Controller with sensor
    • Differential controller
  • Logical Controllers
    • Time switch controller
    • Controller with sensor
    • Differential controller
  • Dependent Controllers
    • AND connection
    • OR connection
    • BIAS connection

Controller Operation

  • Control Variable for each component
  • Multiple Controllers at a Single Node

Result Visualisation in Vista Pro

Common Error Messages

  • Control Variable Overspecified at HVAC node
  • Insufficient Control Definition
  • Negative Airflow Controller

Frequently Asked Questions

Ready to take your HVAC simulations to the next level?

Access the Fundamentals of ApacheHVAC Controllers video in our on-demand library and start building a deeper understanding of these essential components today. Watch now.