Project goal
The main goal was to organize a modern and energy -efficient system of heating and hot water supply in the new -built house area 150 M² in the village of Khodosovka. The customer in advance provided the installation of the warm floor and the output of the contours to the boiler room, But the main source of heat has not yet been chosen. Given the desire to get reliable, Automated and economical system without the need to use gas or solid fuel boiler, it was decided to immediately stop on the heat pump.
Answer
An air source heat pump was installed to provide heating and hot water preparation. Raymer RAY-15DS2-EVI, which completely covers the thermal needs of the house. The system also integrates Raymer DHWP 200L hot water supply tank and Raymer IMP 60L buffer capacity, which allows you to increase the efficiency of equipment and optimize the hydraulic scheme.
The chosen decision ensures stable operation of the system throughout the heating season, High energy efficiency and comfort for residents of the house.
The main stages of installation of the heating system
1. Installation of an external unit
The outer block of thermal pump Raymer RAY-15DS2-EVI was installed directly at the entrance to the boiler room, for which a separate input is provided. This placement option ensures the convenience of maintenance of equipment and reduces the length of the pipelines between the internal and external part of the system.
Additionally, the block was mounted under a canopy, protecting it from atmospheric precipitation and direct sunlight. This solution allows you to extend the service life of the heat pump and increases the reliability of the work even in difficult weather conditions.
The installers provided the correct distance from the walls and the free space for air circulation, which is important for effective heat transfer.
The installation on a strong base with anti -vibration elements was also performed, which reduce the level of noise and vibration during equipment operation.
2. Installation and connection of a hydraulic module
A heat pump hydraulic module was installed in the boiler room Raymer RAY-15DS2-EVI, which is responsible for managing the work of the entire heating system.
Hydraulic module connected to the buffer capacity Raymer IMP 60L, through which the heat floor is controlled. This scheme allows you to stabilize the operation of the pump, reduce the amount of starts and ensure uniform distribution of heat by rooms.
A three -way valve was installed next to the hydraulic engine, allows you to switch the flow of coolant between different directions - into the heating circuit or to heating hot water. This solution makes the system more flexible and automated, Since the valve operation is synchronized with the operation of the heat pump controller.
Thanks to this connection, the hydraulic engine performs several functions at once: Provides the circulation of the coolant, maintains a stable temperature in the warm floor and controls the distribution of energy between heating and hydraulic.
3. Connecting tanks to hydraulic engine
Two key elements have been integrated into the heat pump system - storage tank Raymer IMP 60L and hot water supply tank Raymer DHWP 200L, which ensure stability and comfort in the house.
storage tank (buffer capacity) Raymer IMP 60L connected directly to the hydronic module and works as an intermediate link between the heat pump and the underfloor heating circuit.
Main functions:
- leveling pressure and temperature in the system;
- Reducing the load on the compressor of the heat pump by reducing the frequency of inclusions/off;
- Maintaining a stable heat carrier flow for warm floor circuits;
- the possibility of accurate control of heat supply.
Thus, The buffer container makes the operation of the heat pump more smooth and durable.
Hot water supply tank Raymer DHWP 200L connected to the hydraulic module via a three-way valve, which automatically redirects the flow of coolant.
The scheme of work looks like this:
- In normal mode, the coolant circulates through the buffer and the circuit of the warm floor;
- If necessary, in hot water, the valve switches the flow from heating to the gas tank;
- The coolant heats the water in the internal heat exchanger of the tank;
- After heating, the system automatically returns to heating mode.
This decision allows you to maintain the constant availability of hot water for household needs without prejudice to the work of heating.
Key advantages of such a scheme:
- priority heating of hot water while maintaining a stable heating;
- Increasing the energy efficiency of the system;
- The smooth operation of the heat pump and the extension of its resource;
- Complete switching automation between modes without user intervention;
- Comfort in the house due to the simultaneous operation of the heating system and dowry.
A separate expansion tank was installed on each tank, which allows maintaining stable pressure in the system.
For buffer tank Raymer IMP 60L the expansion tank compensates for changes in coolant volume during temperature fluctuations and protects the heated floor circuit from pressure changes.
For hot water tank Raymer DHWP 200L installed its own expansion tank, which compensates for an increase in the volume of water during heating and prevents the overload of the system. Thanks to this, safe, Reliable and durable work of the entire heating system.
4. Nitrogen purge and vacuuming system
After completing the installation of pipelines, connection of a hydraulic module and tanks, as well as the installation of all auxiliary elements of the system, An important stage was completed - the purge of the system with nitrogen. This procedure is carried out before vacuuming and performs several key tasks.
Firstly, Nitrogen under pressure allows you to remove dust from the system, Small particles and remnants of mounting garbage, which could get inside during installation. Secondly, purging serves to control the tightness of all compounds, including pipelines, three way valve, hydraulic module and tanks.
Any nitrogen leak immediately reveals a problematic place, which allows you to eliminate it before the launch of the system.
After successful purging Vacuuming the system is carried out. Using a vacuum pump from pipelines and heat exchangers, air and residual moisture are removed, that may have gotten in during installation. Even a small amount of air or moisture can negatively affect the operation of the heat pump: reduce efficiency, cause the formation of ice crystals in the system or cause corrosion of internal elements.
Vacuuming is carried out until stable low pressure, which confirms the tightness of the system and readiness for refilling with coolant. Such a sequence - first purge with nitrogen, Then vacuuming is a standard practice for any heating and hydraulic pumping systems with heat pumps. It guarantees, that after starting the equipment will work reliably, Effective and durable, And all the contours of the warm floor, tanks and hydraulic engine will receive optimal conditions for work.

Heat pump Raymer RAY-15DS2-EVI (380 AT) is a highly efficient and economical solution for heating new buildings up to 180 м². This inverter heat pump operates using air -water technology and uses R32 refrigerant, which provides high efficiency at a low level of emission co₂.
Advantages of the heat pump Raymer Ray-15DS2-EVI
1. High energy efficiency
Thanks to inverter technology and improved system Invaluation of a couple (EVI) The heat pump can operate at temperatures up to -30 ° C., Providing Effective heating even in cold winter months.
2. Significant saving of energy resources
The heat pump allows Save before 80% electricity compared to traditional heating systems, such as Electric or solid fuel boilers, through the use environment from the environment instead of direct heat production.
3. Environmental friendliness
Usage refrigerant R32 Makes a heat pump Environmentally friendly, since he has Low potential of global warming and does not destroy the ozone layer.
4. Intelligent control
The heat pump is equipped intellectual controller, which allows automatically adjust power depending on ambient temperature, Providing stable and efficient operation of the system.
5. Long service life
Heat pumps Raymer are known for their reliability and durability, Providing Stable heating for many years.
Comparison with other heating systems
Thermal pump vs. electric boiler
- Energy Saving: heat pump consumes Significantly less electricity to produce the same amount of heat.
- Environmental friendliness: usage renewable energy sources makes the heat pump more environmentally friendly.
- The cost of operation: low electricity costs reduce overall heating costs.
Thermal pump vs. Solid fuel boiler
- Autonomy: Heat pump does not require constant fuel supply, which reduces labor costs.
- Security: no flammable materials reduces the risk of fires and explosions.
- Service: Minimum service requirements compared to solid fuel boilers.
Advantages of the heat pump Raymer Ray-15DS2-EVI, taking into account COP
One of the main characteristics of a heat pump is COP (Coefficient of Performance) — performance factor, which shows, how many heat units are produced per unit of electricity consumed. For Raymer RAY-15DS2-EVI this figure is 3,5–4,0, which means, that for every kW of electricity a heat pump produces 3,5–4 kW of heat.
High COP provides:
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energy efficiency - the system consumes Minimum electricity for home heating;
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Reduced heating costs - compared to electric boilers, savings can reach 70–80%;
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Stable work even at low outdoor temperatures thanks to inverter technology and EVI compressor;
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Environmental friendliness - most of the heat is generated due to renewable source (air), not direct burning of electricity or fuel.
High COP makes Raymer Ray-15DS2-EVI ideal for new buildings, where the energy savings are important, Comfort and stable heating throughout the year.
The selection of the Raymer Ray-15DS2-EVI heat pump for a new building is an investment in an economical, environmentally friendly and efficient heating, which will provide comfort in the house for many years.



















