Saving energy using a heat pump: Optimal controller setting

Added: Thursday, 8/22/2024


Effective management of a heat pump heating system is essential for maximizing energy savings and ensuring optimal thermal comfort in the home. Correctly setting the heat pump controller can significantly affect its efficiency and, consequently, the operating costs of the entire system. So now we will look at the most important aspects of controller configuration that will allow you to achieve the perfect balance between energy efficiency and user comfort .

Instalator ustawia program pompy ciepła przy termomodernizowanym domu w remoncie

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The impact of heat pump controller settings on thermal efficiency

A very important element influencing the efficiency of a heat pump is the proper setting of its controller. Correct configuration translates directly into the amount of energy used by the system, and consequently - into the costs of heating and cooling rooms . The heat pump controller is responsible for controlling parameters such as water temperature in the installation, compressor operating frequency or set temperature in individual rooms.

See product: Air heat pump Galmet split Prima S 8GT - 8.3 kW SG-000062S

One of the most important configuration issues is setting the so-called heating curve . The heat pump heating curve is the relationship between the outside temperature and the temperature of the water supplying the heating system. A correctly selected heating curve ensures that the heat pump operates with optimal efficiency, providing exactly as much heat as is needed at a given moment.

It is worth noting that different types of air heat pumps may require slightly different approaches to setting the heating curve. In the case of systems with underfloor heating, the curve should be flatter, while for systems with radiators it may be steeper. Adjusting the heating curve to the specifics of the building and user preferences can result in significant energy savings .

How to properly set up an air heat pump?

Air heat pump Galmet split Prima S 8GT - 8.3 kW, 1-phase, 230 V

The configuration of an air source heat pump requires taking into account many factors, such as the characteristics of the building, the type of heating system and local climate conditions. The first step is to precisely determine the supply temperature of the heating system. For low-temperature systems, such as underfloor heating, the optimal supply temperature is usually in the range of 35-45°C. In the case of traditional radiators, this temperature can be slightly higher, reaching 50-55°C.

Another important aspect is setting the heat pump shutdown temperature . This is the outside temperature below which the heat pump stops working effectively and the system switches to an alternative heat source, if one has been installed. For most modern air-to-water heat pumps, this temperature is around -20°C, but it can vary depending on the model and manufacturer.

It is important to remember to set the hysteresis correctly, i.e. the temperature difference between switching the heat pump on and off. Hysteresis that is too small can lead to frequent switching on and off of the device, which negatively affects its service life and energy efficiency . On the other hand, hysteresis that is too large can result in significant temperature fluctuations in the rooms.

Correct setting of the heat pump's DHW temperature

The temperature of domestic hot water (DHW) has a significant impact on the efficiency of the entire heating system based on a heat pump. Too high a DHW temperature can lead to unnecessary energy losses, while too low a temperature may not provide adequate comfort to users.

Copper-aluminum radiator Regulus REVERS S 3/R/60 The optimal solution is to set the DHW temperature at 45-50°C. This temperature is sufficient for most home applications, and at the same time allows the heat pump to operate efficiently. In the case of a high-temperature heat pump , it is possible to set a slightly higher DHW temperature, but it should be remembered that each degree above 50°C translates into additional energy consumption.

It is worth considering using the automatic disinfection function of the DHW tank. It involves periodically heating the water to a temperature of around 60-65°C in order to eliminate Legionella bacteria. This function should be activated once a week, preferably at night, when the demand for hot water is the lowest.

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How to set a heat pump thermostat?

Precise thermostat setting is key to ensuring optimal thermal comfort while minimizing energy consumption. Modern temperature controllers offer a range of advanced features that allow you to adjust the heating system to the individual needs of users.

Auraton AURSMH2561010 Smart Home Temperature Controller One of the most important aspects is setting the appropriate time programs. They allow you to automatically lower the temperature during periods when the household is sleeping or away from home, which translates into significant energy savings . For example, you can program a 2-3°C temperature reduction at night and during working hours.

Programmable controllers allow you to create individual schedules for each day of the week. This allows the heating system to adapt to the rhythm of life of the household members, providing a comfortable temperature exactly when it is needed.

It is also worth paying attention to the adaptive function that some advanced thermostats offer. This function learns the thermal characteristics of the building and predicts how far in advance the heating should be turned on to reach the set temperature at a given time. This allows the system to work more efficiently, avoiding unnecessary temperature fluctuations.

Choosing the right heating system

Choosing the right type of heat pump is key to achieving maximum energy efficiency. Ground source heat pumps are characterized by high operational stability and efficiency, especially in colder climates. In turn, air source heat pumps are easier to install and often more economical when upgrading existing heating systems.

It is also worth paying attention to the selection of appropriate radiators. The radiator for heat pumps is designed to work with lower supply temperatures, which translates into higher efficiency of the entire system. A good choice here will be the Regulus REVERS S 3/R/ 60 RVSB0306 copper-aluminium radiator

How to manage heating energy generated by a heat pump?

Efficient management of the heat generated by the heat pump is key to maximizing savings and ensuring optimal comfort in the home. One of the most important aspects is the proper balancing of the heating system. In the case of installations with radiators, this means the correct setting of the thermostatic valves. Valves that are too tight can lead to overheating of some rooms, while others remain underheated.

In the case of underfloor heating, it is crucial to properly regulate the flows in individual heating loops. Uneven heat distribution can lead to discomfort and increased energy consumption. It is worth considering the use of zone regulators and controllers , which allow for independent temperature control in different parts of the house.

See: Smart Home Auraton AURSMH2561010 temperature controller

Smart Home temperature controller AURATON Radiator Set AURSMH2511010 An important element of effective energy management is also the thermal insulation of the building . Even the best configured heat pump will not provide optimal efficiency if heat escapes through leaky windows or insufficiently insulated walls. It is worth regularly checking the condition of the insulation and, if necessary, carrying out the necessary modernizations.

It is important to remember to regularly maintain your heating system. Periodic inspections of the heat pump, cleaning of filters and checking the tightness of the installation allow you to keep the system in optimal condition, which translates into its energy efficiency .

In summary, the optimal setting of the heat pump controller is the key to efficient and economical home heating. Correct configuration of the heating curve, DHW temperature and thermostat allows for significant reductions in energy consumption while ensuring high thermal comfort. It is worth remembering that each installation is different and may require an individual approach. In case of doubt, it is always worth consulting an experienced specialist who will help you choose the optimal settings for a specific system.

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