MasterTherm’s control platform is one of the most advanced in the market. It combines a simple, intuitive user interface for homeowners with professional-grade diagnostic, automation, and integration features for installers and consultants.

User Interfaces: Web, Mobile, and On-Site

MasterTherm systems come with multiple control options — all consistent in design, all offering full visibility:

• Web Portal (mastertherm.online) Every heat pump can be connected to the internet for remote access. Users log into a secure web interface to adjust temperatures, operating modes, or hot water schedules — as if standing at the unit itself.
• Mobile App (iOS & Android) The MasterTherm Touch app mirrors the web portal. Homeowners can switch heating/cooling, boost DHW, adjust setpoints, or check live data from anywhere. A demo mode lets new users explore features pre-installation.
• Smart Touchscreen Panel (pGDx) A 4.3” colour touchscreen, either on the unit or wall-mounted, doubles as thermostat and system hub. It can manage multiple heating circuits, display energy tariff data, and connect directly via Wi-Fi/Ethernet to the online portal.

Ease of Use: No static IP or router setup is required. Installers simply connect the heat pump, and remote access is enabled via MasterTherm’s cloud gateway.

Comprehensive Climate Control

MasterTherm software doesn’t just run the compressor — it orchestrates the entire building’s climate:

• Multi-Zone Heating – Up to 6 independent circuits (e.g. underfloor, radiators, separate floors, or tenant spaces) with individual schedules and set points mastertherm.ie..
• Cooling Options – All models are reversible. Ground-source units also support passive cooling, circulating ground-loop fluid without running the compressor.
• Domestic Hot Water (DHW) – Controlled by schedule or demand. With a desuperheater option, hot water up to 80 °C can be produced from waste heat without efficiency loss.
• Swimming Pools & Ancillary Heating – Circuits can be dedicated to pools, solar collectors, or process loads.
• Auxiliary Sources – Software coordinates backup boilers or immersion heaters.
• Cascaded Systems – Up to 16 heat pumps linked via MasterLAN, staged and rotated for maximum efficiency.

In a home, this might mean separate control of upstairs vs downstairs heating. In a leisure centre, it might mean coordinating pool heating, AHUs, and DHW simultaneously.

Monitoring, Diagnostics & Remote Support

Connectivity enables MasterTherm to go far beyond traditional controls:

• Live Data – Real-time status for room temps, flow/return temps, pressures, compressor frequency, and energy consumption.
• Cloud Logging – Continuous upload to MasterTherm servers allows long-term performance analysis.
• Energy Tracking – Daily/monthly consumption, COP, and cost views. Optional MID-certified meters ensure accurate billing or reporting.
• Fault Alerts – Automatic error detection with app notifications and installer access to detailed fault codes.
• Remote Diagnostics – Installers can log in securely to review graphs, adjust parameters, reset errors, and often fix problems remotely.

This depth of monitoring supports proactive maintenance and underpins warranties of up to seven years.

Smart Automation & Self-Optimisation

Where MasterTherm really stands out is in automation that adapts operation to real-world conditions:

• Weather Compensation (Equithermal Control) Outdoor and indoor sensors continuously adjust heating water temperatures. Rooms stay stable without overshoot, while efficiency is maximised.
• Schedules & Timers Each circuit can follow its own routine (e.g. lower temps at night, comfort boost in morning). Holiday/away modes are included.
• Dynamic Tariff Optimisation The heat pump runs harder in cheap periods and backs off in expensive peaks. Tariff forecasts (24–30 hours ahead) are displayed on the pGDx controller, reducing costs by up to 35%. 
• Forecast-Based Operation Using OpenWeather API, the controller can pre-emptively adjust output based on predicted temperature changes.
• Remote Overrides Users can always boost or override settings from the app — comfort on demand.

Result: Lower running costs, higher SCOP, reduced grid strain, and simpler user experience.

Energy Management & System Integration

The control software ensures that every kWh is used intelligently:

• Adaptive Inverter Control – Smooth compressor modulation eliminates on/off cycling, increasing efficiency and extending lifespan.
• PV & Battery Integration – Heat pump operation can align with solar production or battery state of charge, storing energy as heat.
• Smart Grid Ready – Open APIs allow response to grid signals for demand response or load shifting.
• Energy Transparency – Interfaces show real-time and historical energy usage, enabling users to fine-tune behaviour.

Efficiency Features:

• Always supplies the lowest possible water temperature for current load.
• Desuperheater captures compressor waste heat for high-temp DHW.
• Electronic expansion valves maintain optimal refrigerant flow under all conditions.

BMS & Smart Home Integration

MasterTherm is designed to fit seamlessly into larger systems:

• BMS Connectivity – Modbus, BACnet, and other protocols allow full read/write integration with building management systems.
• Smart Home Integration – Open API enables connection to platforms like Home Assistant, or third-party routines (e.g. linking heating to security system modes).
• PV & Battery Links – Heat pump responds directly to inverter or storage signals.
• MasterLAN Multi-Unit Networks – Up to 16 units operate as a coordinated plant, with load sharing and failover.

From smart homes to district heating, the heat pump becomes part of the wider energy strategy.

Installer Tools: From Commissioning to Service

• Guided commissioning via touchscreen or laptop.
• Remote parameter changes post-install.
• OTA firmware updates keep systems current.
• Alerts enable proactive maintenance.
• Training and partner portal for technical support.
• Cascade configuration for multi-unit projects.

Scalability: One Platform, Any Scale

The same software architecture serves projects from small homes to industrial campuses.

Conclusion

MasterTherm’s software platform unifies simplicity for homeowners with technical sophistication for consultants and installers.

• For domestic users: intuitive apps, schedules, and energy transparency.
• For commercial managers: scalable control, BMS integration, and robust diagnostics.
• For industrial operators: process-level precision, multi-MW scalability, and smart grid participation.

Lukas Kadlik
Technical Director

Courtesy of Master Therm Ireland / Lukas Kadlik – www.mastertherm.ie