Introduction
A modular controller helps heat pumps run smoother, longer, and far more efficiently.
Introduction
Heat pumps work well on paper, but real homes and test setups often behave differently. Small changes in flow rate, buffer-tank temperature, or valve timing can shift performance a lot. The GOcontroll Moduline Mini I gives installers and R&D teams a compact, modular platform that improves control across the whole system. It reads temperatures, manages pumps, adjusts valves, and coordinates storage, which leads to smoother cycles and better efficiency every day.
A Modular Platform for Smarter Hydronics
The Moduline Mini I includes four module slots, an i.MX 8M Mini processor, and two CAN 2.0B interfaces. It also supports Ethernet, USB, optional wireless communication, and a rugged aluminium enclosure suited for technical rooms.
Because the controller is modular, users can mix digital outputs, analog inputs, and 4–20 mA modules to read sensors or drive pumps. This flexibility helps installers manage buffer tanks, circulation loops, auxiliary heaters, or 3-way valves without redesigning the entire system.
Real-Time Temperature Feedback for Better Efficiency
Heat pumps run best when temperatures change smoothly. Sudden shifts can cause short cycling, stress the compressor, and drop the coefficient of performance (COP).
The Moduline Mini I reads temperature sensors many times per second. As a result, it adjusts circulation pumps or 3-way valves before conditions drift too far. It also balances flow between zones, buffer tanks, and heat sources.
Furthermore, steady control reduces cycling, lowers compressor load, and keeps the system stable under changing weather and household demand.
Intelligent Pump and Valve Control
The controller triggers output modules that switch motors, pumps, valves, and heaters with precise timing. Because the logic runs directly on the hardware, response times stay fast.
The system can:
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Increase or reduce pump speed for better delta-T
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Switch buffer-tank flow paths
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Run anti-short-cycle protection
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Prioritize domestic hot water when needed
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Activate auxiliary heaters only at optimal moments
These steps create a more efficient and predictable heat-pump system.
Smarter Use of Energy and Storage
Heat pumps often connect to PV arrays, thermal storage, or grid-flex systems. The Moduline Mini I communicates through CAN or Ethernet, so it can follow external limits or predictions.
For example, users can feed in PV production data to shift heating cycles when solar power peaks. They can also include forecasts or microgrid data to anticipate demand. Therefore, the system uses cleaner energy and lowers peak consumption.
Clear Dashboards With Node-RED
Node-RED is preinstalled on the controller. It offers easy dashboards that show:
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Temperatures at key points
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Pump states and valve positions
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Energy flows
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Buffer-tank conditions
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COP-related indicators
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Historical charts and profiles
Because these dashboards run in any browser, installers and researchers can adjust settings quickly. They can also log data for R&D work or long-term performance studies.
A Scalable Tool for HVAC R&D and Installers
Prototype heat-pump systems change often. Fortunately, the Moduline Mini I grows with them. Teams can add modules, update logic, or connect new sensors easily. Its rugged design and Linux-based platform ensure reliable operation in test labs and field systems.
As a result, small energy companies, HVAC R&D groups, and advanced installers gain a stable and flexible tool that pushes heat pumps toward peak efficiency.
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