Task
A request was received for a miscalculation of heating system using a heat pump compared to an electric boiler and a gas boiler. Customer – The owner of a two -story residential building in the city of Chernivtsi – Previously used electric boiler, However, due to the high cost of electricity, I decided to find a more economical solution.
The main requirement was to reduce monthly heating costs without loss of comfort. It was also important that the equipment was stable in winter and minimum maintenance costs.
After analysis of options (Electric boiler, a gas boiler, Heat pump) a decision was made in favor of installing an air pumping pump as the most effective in the long run.
Selection of equipment
Based on the data provided from the owner, total area of the house, the climatic conditions of the Chernivtsi region and the design features of the house itself decided to install the heat pump of the air-water Raymer Ray-18DS2-EVI (220V).
This model is equipped with an inverter compressor and EVI technology (Enhanced Vapor Injection), which provides stable and efficient operation even at low external temperatures before -30 ° C. The capacity of this heat pump is enough to heat a two -story building with an area of about 200 м², Taking into account heat loss and comfortable heating mode.
In addition to the main heating function, The system also provides for the possibility of preparing hot water. To reduce the number of inclusions of the compressor and conservation of energy, a buffer capacity was integrated, which optimizes the operation of the heat pump. Additionally installed voltage stabilizer Elects hybrid to protect equipment from changes in the mains, which is relevant for the private sector.
Such a solution made it possible to achieve significant savings compared to the previous electric boiler, while preserving the comfort and reliability of the heating system.
1. Installation of the outer heat pump unit: reliability, tightness
The photo shows the already executed connection of the external unit of the heat pump type "air-water". This element is a key part of the system, since it is here that the process of heat is fought from the surrounding air and it is transferred to the heating contour of the house.
The outer unit is reliably installed on a metal anti -corrosion stand, lifting it above the level of the sidewalk – This is necessary to protect against snow, rain and dirt, as well as for free condensation drainage.
The heat pump is connected to the inside of the system using two thermal -insulated copper pipelines. They are responsible for the circulation of the coolant, which transfers heat from the outside to the hydraulic machine inside the house. To reduce thermal losses and protection against freezing, These pipes are wrapped in special thermal insulation and additionally reinforced with cable screeds.
In addition to hydraulic compounds, Cables and control cables are brought to the outer unit. This provides protection of electrical connections from moisture and mechanical damage. All communications are in the building through a special hole in the wall.
A pressure gauge for visual control of pressure is installed on the block case, as well as serving cranes, which allow us to conveniently block the system during maintenance or repair.
Generally, Installation is made in accordance with technical standards and standards, Taking into account as functionality, so the aesthetics of appearance. This approach guarantees the durability of the system, its effective work in winter and minimum heat losses.
2. Mounting Raymer Ray-18DS2-EVI (220V)
After the launch of the new system, the customer received a significant reduction in heating costs – several times compared to the previous electric boiler. The system works quietly, Stable and automated, without requiring constant intervention. Besides, Due to the zonal management, it was possible to optimize heat consumption and save resources even more.
Eventually, The heat pump has become a profitable investment – with a quick payback period and a high level of comfort, comparable to gas or electric systems, but much more economical in operation.
In this project, the installation of a hydraulic engine was performed, which is the central part of the internal system of the heat pump. The hydraulic engine ensures the connection of the outer unit with all heat consumers in the house – radiators, warm floor and boiler of hot water.
The installation of a hydraulic engine included a buffer capacity connection, Installation of circulation pumps, expansion tank and security groups. All elements were placed compactly and logical for the convenience of maintenance. Pipelines are mounted in compliance with the hydraulic balance, using high -quality thermal insulation.
The system provides for zonal heating management – each circuit has a separate pumping group with locking reinforcement. This allows you to accurately adjust the temperature in separate rooms and optimize energy consumption.
3. Connecting buffer capacity and integration with heating contours
The system provided for the installation of buffer capacity, which plays the role of a hydraulic separator between the heat pump and heat consumers in the house. The buffer is connected to the output of the heat pump through the supplier and reverse highways. This allows the heat pump to work stably and with a minimum number of launches, which positively affects its resource and energy efficiency.
From the buffer container, heat is supplied to separate heating contours – Warm floor and radiator heating. Each circuit has a separate circulation pump and a mixing unit with the possibility of regulating the temperature of the coolant in accordance with the needs of a particular zone.
The system is designed in this way, which allows you to control the temperature in separate rooms, which provides comfort and savings. This approach allows you to effectively use thermal energy only there, where is she really needed, and avoid overheating in rooms, which are temporarily not used.
The integration of the buffer with the multi -circuit system allows you to achieve maximum flexibility, and also simplifies the balancing of the system in the transition seasons, when the thermal load changes.
4. System protection stabilizers of voltage
To ensure stable and safe operation of the entire heating system, reliable protection against voltage drops was provided. Even before modernization, A stabilizer has already been installed in the system SNAN-10000, who served an electric boiler, Boiler and distribution crest of heating contours. This boiler remained in the system as an alternative heat source in case of peak loads or emergency situations.
However, with the commissioning of the heat pump, which has more sensitive electronics and inverter compressor, there was a need for additional protection. For this, the second stabilizer was installed – Elects hybrid, which is characterized by a quick reaction to a change in voltage and a wide range of input voltage.
This approach provides:
- stable operation of the heat pump in the conditions of an unstable power grid;
- protection of electronic components from damage;
- extension of the resource of equipment;
- Continuous heat- and hot water supply even with critical fluctuations on the network.
The system is built taking into account the reservation, which avoids stopping at heating under any circumstances.
Integrated heating system based on thermal pump: comfort, Savings and reliability
In this project, we implemented a modern heating system of a private two -story building in the city of Chernivtsi, Replacing the outdated electric boiler with an energy -efficient heat pump. The main goal of the customer was to reduce monthly heating costs without loss of thermal comfort.
Based on the analysis of the area of the house, the level of heat loss and climatic conditions of the region, We have chosen the Raymer Ray-18DS2-EVI model (220V) – Thermal pump air pump with inverter technology EVI (Enhanced Vapor Injection), which provides stable equipment even at low temperatures up to -30 ° C. This is especially true for our region, where in winter there may be sharp temperature differences.
Result for the customer
After the launch of the new system, the customer received a significant reduction in heating costs – Four times compared to the previous electric boiler. The system works quietly, Stable and automated, without requiring constant intervention. Besides, Due to the zonal management, it was possible to optimize heat consumption and save resources even more.
Eventually, The heat pump has become a profitable investment - with a quick payback period and a high level of comfort, comparable to gas or electric systems, but much more economical in operation.
