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Tasks and solutions

Task:

The customer requested to calculate the efficiency of the heating system of the house when installing a heat pump and the payback period of the equipment. The client was interested in this solution, since the heat pump system works not only for heating in winter, but also for cooling in summer, subject to installation of fan coil units, which distribute warm and cold air. Another important factor is the ability to provide hot water supply based on the operation of a heat pump..

Answer:

After analyzing the presented data, it was decided to install an inverter heat pump Raymer RAY-15DS1-EVI (380V), which, thanks to its technology and high efficiency coefficient, can provide significant savings on heating.

So, how the customer identified a desire to provide cooling for the house in the summer, Our experts recommend installing additional Raymer fan coils to cool rooms in summer, to save on installing air conditioners.

Hot water supply will be provided by installing a TermoJet indirect heating tank 200 l.

To increase the reliability and safety of the system, it was also decided to install an expansion tank and a pump group.

This will allow you to maintain stable pressure in the system and avoid possible emergency situations..

Heat pump control will be configured via Wi-Fi, which provides ease of use and the possibility of remote control.

Scope of work completed

After analyzing the house design, its ergonomic properties, location of all communications (water, electricity, sewage) a thorough plan for the installation of heating equipment was developed and a location was selected for the boiler room with the appropriate requirements for the proper operation of the heat pump and all auxiliary components of the system.

1. Selection of equipment taking into account the climatic conditions of the area

Considering, that the climate in this area is quite moderate, but from time to time the temperature can still reach below -20°C, it was decided to install a Raymer RAY-15DS1 EVI heat pump, which, thanks to inverter technology, easily adapts its operation to weather conditions and is able to operate at temperatures of -30°C.

2. Outdoor unit installation

The outdoor unit of the heat pump was installed on a secure stand (made by yourself), which ensures the stability of the structure. Additionally, the outdoor unit is always installed on anti-vibration supports, to reduce vibrations from compressor and fan operation.

The location of the outdoor unit has been taken into account to ensure optimal performance and ease of maintenance.

Because, The heat pump has a good external coating, corrosion protected, and the internal electronics are well insulated, there was no need to install additional protective structures to protect against adverse weather conditions.

The freon line was laid underground - this helps reduce heat loss during heat exchange.

3. Installation of the indoor unit

The indoor unit of the Raymer RAY-15DS1-EVI heat pump was installed in a dry, ventilated room with maximum comfortable access for maintenance.

Freon pipes from the outdoor unit were connected, as well as well-insulated hot water pipes to prevent condensation during operation in cooling mode.

Connected and configured touch controller for heating control, cooling and domestic hot water.

A modem has been configured to control the VT remotely from a phone or any gadget, which supports Wi-Fi.

4. Hot water connection

So, as a heat pump RAY-15DS1-EVI has the ability to connect and control DHW, it was decided to install an indirect heating tank TM TermoJet on 200 l, made of stainless steel. The coil inside the boiler promotes efficient heat transfer, providing fast heating and constant supply of hot water.

5. Installing additional system components

This Raymer RAY-15DS1-EVI heat pump system is equipped with a three-way valve and a circulation pump, performing important functions for the efficient operation of the heating and hot water supply system:

Three-way valve distributes coolant flows between different circuits - between heating and hot water supply tank (DHW). Switches coolant between different zones. When, when heating of the DHW boiler is required, the valve redirects the flow from the heating circuit to the boiler, and after heating it returns to heating the premises.

Circulation pump ensures coolant circulation in the system, as for heating, as well as cooling. Constantly moves coolant through the heat pump heat exchanger and throughout the system. This allows for even heat distribution (or cold) by premises, and also ensures efficient heat transfer to the heated floor, radiators or fan coils and hot water tank.

Together these components ensure efficient operation of the heating system, switching between modes and stable coolant circulation.

6. Using fan coil units for cooling and additional heating

So, As a heat pump, it is quite a universal thing in providing indoor microclimate, which allows not only to heat, but also to cool the house, our craftsmen installed wall-mounted fan coil units Raymer FAN-55BG (4 PC) и FAN-85BG (1 PC), which will also work for cooling in summer. This eliminates the need for additional installation of air conditioners., which significantly saves homeowners money.

Thanks to the presence of a water heat exchanger, the fan coil can work both for cooling, and for heating the room. This makes it ideal for maintaining a comfortable temperature no matter the weather conditions..

Features of Raymer FAN fan coil units:

High performance: Providing impressive airflow volume in 550 m3 / hour, The fan coil unit is capable of providing fast and efficient cooling or heating of the air in the room.
DC inverter: A reliable compressor with DC MOTOR inverter technology provides not only high performance, but also efficiency in energy consumption, as well as precise temperature control.
Compact and elegant design: The stylish and compact design of the fan coil allows it to easily integrate into any interior, without taking up much space.
Low noise level: Optimized design ensures quiet operation with noise levels up to 35 decibel. Which is ideal for indoor installations, where important silence, while maintaining high performance.
Multi-function LED display with multi-function display: Easy adjustment of temperature and fan speed is ensured by an intuitive LED display, as well as a convenient remote control.
Energy saving mode: Energy saving mode helps reduce energy costs, and various operating modes include cooling, heat, ventilation and dehumidification.
High efficiency filter: Filtration system traps dust and allergens, providing clean indoor air. Convenient access to the filter facilitates its maintenance and replacement.
Automatic functions: The fan coil is equipped with an automatic shutdown function when the lid is opened, automatic restart after power failure, as well as a self-diagnosis function and automatic protection against overheating and voltage drop.
Overheat and overvoltage protection: Fan coil provides reliable protection against overheating and sudden voltage changes, which increases the durability of the device.
Ease of service and safety: Easy access to filter and other parts for maintenance and cleaning, as well as automatic shutdown and restart functions ensure safety and long service life of the fan coil unit.

7. Filtration installation for coolant circulation system.

Filtration in a heat pump heating system is essential to protect equipment and ensure the entire system operates efficiently.. Here are the main reasons, what is filtering for?:

Component protection: The heating system contains sensitive elements, such as heat exchangers, circulation pumps, valves and pipes. Filters protect these components from mechanical contamination, such as sand, slag, rust and other particulate matter, which can form in the circuit.

Maintaining Efficiency: The presence of contaminants in the heating circuit reduces the efficiency of heat exchange and can lead to poor performance of the heat pump. Filtration ensures the purity of the coolant, which increases energy efficiency and reduces heating costs.

Breakdown prevention: Dirt or contamination can clog the heat exchangers, damage to circulation pumps or decreased pipe flow. This may cause accidents or breakdowns, requiring expensive repairs.

Extending equipment life: A clean, contaminant-free system is more stable, with less wear on components, which extends the service life of all equipment, including heat pump.

Thus, Filtration helps maintain reliable system operation, reduces the risk of breakdowns and increases energy efficiency.

7. Connecting voltage stabilizers

To ensure safe and reliable operation of the heat pump, it was installed 3 Voltage stabilizer Elex - 1 for each phase. These devices protect the system from voltage surges and other possible power supply problems..

In case of possible blackouts during certain periods of the year, voltage stabilizers are needed in heating systems, powered by a generator or batteries to ensure long-term operation of the heat pump and protection against breakdowns.

Features of the Raymer RAY-15DS1-EVI three-phase heat pump:

Energy Saving

A heat pump is an energy-saving heating solution. Heat pump heating systems can save up to 80% electricity compared to traditional methods. This occurs by using heat from the environment for heating instead of directly producing heat.

Comparative analysis shows, that even in cold conditions the heat pump is able to operate efficiently, providing warmth in the house while reducing energy consumption.

Ecological cleanliness

Particular attention should be paid to the environmental friendliness of the heat pump. The use of R410a freon makes it an environmentally friendly option. Reduced CO2 emissions help combat climate change and make the pump more resilient to environmental challenges.

Quiet operation and comfort:

Raymer heat pump has silent operation, which allows its use in various residential premises, without disturbing comfort.
The built-in cooling function in the standard version of the pump ensures a pleasant indoor microclimate even in the hot season.

Inverter technology

Inverter technology in the heat pump allows the pump power to be adjusted depending on actual needs. It means, that it operates at maximum efficiency, adapting to changes in external conditions.

The advantages of such a system are more stable and comfortable heating, as well as additional energy savings.

EVI technology

EVI technology (Enhanced Vapor Injection) in the Raymer RAY-15DS1-EVI heat pump is an advanced feature, which increases the efficiency and performance of the heat pump, especially in low temperature conditions. EVI technology works by injecting additional steam into the compression process, allowing the heat pump to maintain higher levels of efficiency even when operating in colder climates.

In a standard heat pump, when the outside air temperature decreases, COP, usually, is decreasing. However, with EVI technology, the heat pump can optimize its performance by regulating the refrigerant flow and injecting additional steam. The result is increased thermal output and efficiency, which makes the heat pump more suitable for operation in winter conditions.

Remote access via Wi-Fi

The pumps are equipped with a remote access function via Wi-Fi. It means, that you can control the pump and monitor its operation using a smartphone or computer from anywhere, Where can I get access to the Internet.

Reliability and durability

Heat pump Raymer RAY-15DS1-EVI 380V 15 kW split system, is characterized by high reliability and durability. Modern technologies and high-quality materials ensure long service life of the equipment.

The experience of using the pump is confirmed by positive user reviews, who note the stability of work and level of comfort, provided by this equipment.

What the customer received by installing the Raymer RAY-15DS1-EVI 380V heat pump?

Installing a heat pump, the customer receives a number of benefits, which make this heating option attractive and efficient:

Energy savings: The heat pump uses energy from renewable sources, such as air, water or soil, which allows you to significantly reduce heating costs compared to traditional gas or electric systems.

energy efficiency: Heat pumps have a high energy conversion rate (COP), which means, that they can generate more heat, what they consume electricity. This makes them one of the most efficient heating systems.