CRI HVAC Solutions

Stop forcing your equipment to speak a generic language. We design around your specific system architecture to maximize compatibility and performance—whether you are controlling fans, blowers, compressors, valves or other air handling or thermal control equipment.

Flexible Control Curves: Easily adjust and fine-tune control curves to match your exact input parameters. Program specific units of airflow, pressure, thermal levels, or other input variables over time, completely bypassing the limitations of rigid, pre-programmed curves. For example, if your system requires a minimum volume of airflow, you can set the idle speed to meet that requirement down to the exact percentage point. You can also adjust the control slope to modify your overall system response. See the graphs below for single-speed and two-speed application examples.

Unique Signal Inputs: Move beyond restrictive, generic 0–10V inputs. We support specialized voltage ranges (e.g., 0–3V) to fit your precise sensor and controller architecture.

Direct PLC & BAS Reading: Streamline your setup with the ability to read a PWM signal directly off a PLC or building automation controller, eliminating the need for costly, awkward external converter modules.

Proprietary Data Formats

We replace standard, bulky character streams with compressed, proprietary data formats optimized for industrial and commercial environments.

Advanced Error Correction

By packing data more efficiently and adding robust error correction against electrical noise, we free up valuable processing space. This allows us to inject bonus monitoring or safety functionalities into your system using that reclaimed bandwidth.

Reliable Communication Protocols

We prioritize high-reliability control systems. By utilizing Modbus and optimized proprietary protocols instead of direct IoT or Bluetooth integration, we minimize firmware complexity and eliminate the common points of failure associated with wireless stacks. When wireless or cloud connectivity is required, we utilize external gateways to isolate the primary control logic. This architecture ensures maximum system uptime and maintains the rigorous performance standards we pride ourselves on.

Application-Specific Form Factors

We engineer custom PCBs that adapt perfectly to tight spatial constraints, unique connector requirements, and specialized enclosures—whether you are building commercial AC and heating units, industrial exhaust systems, commercial exhaust hoods, heavy-duty blowers, combustion airflow systems, or destratification fans. If you have the cabinet space, we can fit it.

All-in-One Architecture

Why use multiple single-purpose boards when you only need one? We seamlessly combine thermostat control, time delays, alarm relays, and multiple sensor inputs into a single, cohesive controller tailored perfectly to your specific air-handling or thermal application.