Imagine an HVAC engineer tasked with designing a multi-zone control system for a medium-sized commercial building — combining heating, cooling, domestic hot water, and air-handling units, all with high energy-efficiency targets.
In a traditional setup, this would require hours of coding, testing, and manual documentation.
With CosterCAD, part of the CosterTools Suite, the entire process becomes visual, intuitive, and faster to deploy.
Step 1 – Visual Design with Ready-to-Use Modules
The engineer starts with an empty workspace and selects predefined logic blocks from the extensive Coster library.
Modules for boilers, chillers, valves, pumps, and sensors are dragged and connected visually, creating the control sequence directly on screen.
Every connection is validated in real time, allowing the designer to check system behaviour immediately.
Result: a fully functional control diagram built in minutes — no code, no syntax errors.
Step 2 – Customisation for Building Requirements
Once the base logic is complete, the engineer adjusts parameters for each zone, adapting setpoints, schedules, and prioritisation rules.
CosterCAD allows every block to be fine-tuned for site-specific needs, ensuring the system meets the comfort and performance goals defined in the design phase.
Result: a bespoke control solution aligned with the project’s energy strategy.
Step 3 – Automatic Documentation
With one click, CosterCAD generates all the technical documentation required for commissioning and maintenance:
- project schematics and wiring diagrams
- input/output lists
- Modbus communication maps
- printable PDF reports
All documents are automatically updated as changes are made, ensuring alignment between design and implementation.
Result: consistent, professional documentation ready for the client and the installation team.
Step 4 – Integration and Validation
The engineer integrates field devices and sensors — temperature probes, flow meters, CO₂ sensors, and wireless transmitters — through multiple communication protocols such as 1-Wire, Resistive (T5 / PT1000 / NTC), Modbus, and LoRa.
The system is then tested virtually to confirm signal integrity and response times.
Result: seamless integration and validation before any hardware is installed.
Step 5 – Efficiency through Proven Algorithms
CosterCAD incorporates energy-optimisation algorithms refined over 50 years of Coster Group experience.
These algorithms automatically manage setpoint adaptation, demand-driven operation, and seasonal switching, ensuring maximum comfort with minimal energy use.
Result: a smarter plant that consumes less, performs better, and meets sustainability goals.
From Design to Delivery: Faster, Smarter, Better
With CosterCAD, system integrators, installers, and engineers can design, document, and deploy complete HVAC control systems with confidence.
Every project benefits from:
- faster design time and reduced programming errors
- clear, visual logic that simplifies collaboration
- automatic documentation for immediate implementation
- energy-optimised performance built on decades of expertise
CosterCAD transforms building automation from a technical challenge into a streamlined, efficient process — turning ideas into intelligent, connected, and sustainable control solutions.
Coster Cad is part of CosterTools Suite and it is an intuitive design tool that simplifies the creation of customised HVAC control strategies — no coding required.