Step-by-Step Guide to Using Rubix for Your Next AHU Project

The only solution you should be using to get your Air Handling Unit (AHU) controls quotations...
February 10, 2025 by
Step-by-Step Guide to Using Rubix for Your Next AHU Project
Peter Campbell

The Rubix Controls Selection Tool is a powerful and user-friendly platform designed to streamline the process of configuring HVAC control systems.

Whether you’re designing a new system or retrofitting an existing one, Rubix simplifies the process by offering intelligent automation, pre-configured defaults, and comprehensive customisation options. This step-by-step guide will walk you through how to use Rubix effectively to create a detailed quote tailored to your project.

Introduction to the Rubix Tool

The Rubix tool is your one-stop solution for:

  • Configuring HVAC control systems based on your requirements.
  • Automatically generating accurate and branded quotations.
  • Streamlining repetitive tasks for similar units using duplication features.

With Rubix, you can easily select components, optimise configurations, and export documents, saving time and minimising errors. Let’s dive into the details of how to use this innovative tool.

Step 1: Access the Rubix Dashboard

When you first open Rubix, you’ll land on the dashboard, which displays all your existing projects. From here, you can:

  • Open an existing project for editing.
  • Create a new project for a specific system or unit.

To start a new project:

  1. Click the "Add New Unit" button located at the top-right corner.
  2. Assign a name to your project, such as "AHU1," to easily identify it later.

Step 2: Setting Up Your Project

After creating your project, Rubix will prompt you to define some initial details:

  1. Select the Unit Type: For example, choose "AHU" if you’re configuring an air handling unit.
  2. Choose the Panel Type: Rubix offers pre-configured options like:
    • Standard Panels: Best for general HVAC applications.
    • HTM-Compliant Panels: Automatically configured for healthcare facilities or other projects requiring HTM standards.

Step 3: Selecting Components for the Unit

Rubix guides you through each component selection, offering clear options and automated recommendations to match your specifications.

1. Filters

  • Select filter types such as bag filters, panel filters, or HEPA filters.
  • Configure Differential Pressure (DP) alarms to notify users when filters need replacement.
  • Option: Choose separate DP switches for individual filters or a single switch for all.

2. Fans and Motors

  • Specify the number of fans required and whether redundancy (e.g., duty/standby configurations) is needed.
  • Choose motor types, such as EC or AC motors, and input voltage requirements.
  • Add inverter drives for enhanced energy efficiency.

3. Dampers and Actuators

  • Define damper types: supply, exhaust, mixing, or return dampers.
  • Input damper dimensions (square meter size) and spindle numbers.
  • Select Belimo actuators with IP54 or IP66 ratings for indoor or outdoor use.

4. Heating and Cooling Coils

  • Choose coil types:
    • Electric coils.
    • LPHW (Low Pressure Hot Water) coils.
    • DX (Direct Expansion) coils.
  • Input required specifications such as power, voltage, and flow rate.

5. Humidifiers

  • Decide on the humidifier type (e.g., isothermal or DX).
  • Add high-limit humidistats or anti-condensate heaters if needed.

6. Heat Recovery Systems

  • Select from:
    • Thermal Wheels.
    • Plate Heat Exchangers.
    • Runaround Coils.
  • Configure options like bypass dampers and spindle numbers for precise control.

7. Advanced Options

Rubix provides additional options such as:

  • Fireman's override functionality for emergency ventilation.
  • CO2 sensors to monitor and adjust air quality using fans, mixing dampers or both.
  • Night setback and comfort economy modes to reduce energy use during off-peak hours.

Step 4: Customising Control Panels

Rubix allows you to design your control panel layout for optimal operation:

  1. Enclosure Type: Choose between standalone enclosures or backplate mounting.
  2. Power Supply: Add options like anti-condensate heaters or internal lighting supplies.
  3. Wiring Options: Specify internal or external wiring to suit installation requirements.

Step 5: Reviewing and Finalising Your Selection

Once all components are configured, Rubix generates a comprehensive summary of your project:

  1. Cost Breakdown: See a detailed breakdown of costs for each selected component.
  2. Review Adjustments: Toggle options on or off to refine your configuration.

Step 6: Exporting Project Outputs

Rubix allows you to download project outputs in multiple formats for easy sharing:

  1. Quotation PDFs:
    • Includes all selected components and their associated costs.
    • Branded with your company’s logo and colours.
  2. Data Sheets:
    • Detailed documentation on selected components, including schematics and wiring diagrams.
    • Available with or without pricing for flexibility.
  3. Duplication Feature:
    • Duplicate your project for similar units, making minor adjustments as needed to save time.

Additional Features for Advanced Users

1. BMS Compatibility

Rubix supports integration with Building Management Systems (BMS) through protocols like BACnet and Modbus. These options are easily selectable during configuration.

2. Fireman’s Override

This option ensures life-safety compliance by allowing AHUs to shut down or operate as required during fire emergencies.

3. Room Monitoring

Add multiple sensors for averaging temperature readings across large spaces. Configure extract-only mode for smoke management.

Step 7: Submitting and Saving Your Project

After finalising your project, save it within Rubix for future reference or edits. You can return at any time to make adjustments or add new units to the same project.

Ready to Experience Rubix?

The Rubix Controls Selection Tool makes designing, quoting, and configuring HVAC control systems easier than ever. By automating complex calculations, offering intelligent recommendations, and streamlining documentation, Rubix saves time and ensures your projects are both accurate and cost-effective.

Start your next HVAC project with the Rubix Controls Selection Tool. Visit iACS Store to learn more about this powerful platform and explore our range of premium HVAC components!

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