Rubix: The Free HVAC Quotation Tool for AHU Solutions

The easy and free Air Handling Unit (AHU) controls quotation tool, eliminating waiting time and increasing efficiency...
February 10, 2025 by
Rubix: The Free HVAC Quotation Tool for AHU Solutions
Peter Campbell


Quoting for Air Handling Units (AHUs) can be a complex and time-intensive task, often requiring detailed calculations, precise component selection, and adherence to strict industry standards. For many HVAC professionals, traditional methods can lead to inefficiencies, inaccuracies, and delays that impact project timelines and budgets. Rubix is here to change that. Rubix is a free HVAC quotation tool specifically designed for AHU solutions.

This innovative software streamlines the quoting process, saves time, reduces errors, and provides comprehensive project documentation - all in one intuitive platform. Whether you’re an engineer, project manager, or contractor, Rubix makes AHU quoting effortless and accurate.

Table of Contents

  1. Why We Developed Rubix
  2. The Challenges of Quoting AHUs
  3. Who Can Benefit from Rubix?
  4. How Rubix Works: Step-by-Step Guide
    • Project Configuration
    • Component Selection
    • Documentation Generation
  5. Essential AHU Panel Components, iACS Store
  6. The Rubix Workflow: From Quote to Delivery
  7. Why Rubix and iACS Are Essential for Your HVAC Projects
  8. Start Quoting for Free with Rubix

Why We Developed Rubix

At iACS, we recognised a significant gap in the HVAC industry—traditional AHU quoting methods were inefficient, prone to error, and lacking transparency. This inspired us to create Rubix, a free tool to address these challenges.

Rubix was developed to:

  • Simplify complex AHU configuration and quoting.
  • Eliminate repetitive tasks and manual errors.
  • Enhance transparency through itemised quotes and detailed project documentation.
  • Create a centralised platform for all stakeholders, from engineers to procurement teams.

With Rubix, you can deliver quotes faster, improve client satisfaction, and focus on what truly matters—delivering outstanding HVAC solutions.

The Challenges of Quoting AHUs

1. Complex Component Selection

AHUs require numerous components, including fans, filters, dampers, and coils. Ensuring compatibility and correct sizing can be time-consuming and error-prone.

2. Manual Processes

Traditional methods involve repetitive manual work to generate datasheets, BOMs, and wiring diagrams, leading to inefficiencies and delays.

3. Lack of Transparency

Clients often receive vague cost breakdowns, making it difficult to assess the value of their investment.

4. Communication Gaps

With multiple stakeholders involved, miscommunication can lead to errors, delays, and increased costs.

Who Can Benefit from Rubix?


Rubix is designed to serve professionals across the HVAC industry, offering unique benefits for:

  • HVAC Engineers: Automates technical calculations and reduces configuration errors.
  • Project Managers: Centralises project details for improved collaboration.
  • Procurement Teams: Provides detailed BOMs and cost breakdowns for streamlined purchasing.
  • Contractors and Installers: Delivers clear wiring diagrams and operational descriptions for hassle-free installation.
  • Building Owners: Offers transparency in costs, system capabilities, and long-term benefits.

How Rubix Works: Step-by-Step Guide

1. Project Configuration

Start by creating a new project in Rubix. Define:

  • Unit Type: Select AHU or other HVAC systems.
  • Panel Type: Choose from pre-configured options like Standard or HTM-Compliant Panels.

2. Component Selection

Rubix guides you through the selection of every AHU component, including:

  • Filters: Configure bag, panel, or HEPA filters with DP alarms.
  • Fans and Motors: Select EC or AC motors, redundancy setups, and inverter drives for energy efficiency.
  • Dampers and Actuators: Define damper types and choose actuators with appropriate IP ratings.
  • Coils: Configure electric, LPHW, or DX coils with detailed specifications.
  • Humidifiers: Add isothermal or adiabatic models with humidistats and anti-condensate heaters.

3. Documentation Generation

Rubix generates professional, branded outputs in minutes:

  • Control Panel Datasheets
  • I/O and BMS Point Lists
  • Detailed Costing Breakdown

Essential AHU Panel Components, iACS Store

1. PLC Controllers

  • Product: Carel pCO Large PLC
  • Function: The brain of the AHU, managing fan speeds, temperature, and humidity.

2. Sensors

3. Actuators

4. Inverter Drives

The Rubix Workflow: From Quote to Delivery

  1. Configure Your Project: Input specifications and select pre-configured defaults.
  2. Select Components: Tailor each component to meet project requirements.
  3. Generate Documentation: Create datasheets, BOMs, and operational descriptions instantly.
  4. Approval and Procurement: Transition seamlessly to the order stage with clear BOMs.
  5. Manufacturing and Delivery: Receive fully tested systems with complete documentation.

Why Rubix and iACS Are Essential for Your HVAC Projects

  • Comprehensive Inventory: Access over 6,000 HVAC components at the iACS Store.
  • Unparalleled Accuracy: Rubix ensures precise configuration and error-free documentation.
  • Time Savings: Reduce quoting time by up to 70% with automated workflows.
  • Transparent Outputs: Provide clients with clear, itemised project breakdowns for informed decision-making.

Start Quoting for Free with Rubix

Rubix is more than just a tool—it’s the future of AHU project management. Simplify your workflow, improve accuracy, and deliver exceptional results with this free HVAC quotation tool.

Rubix and iACS: Innovating HVAC, one quote at a time.

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