Heat pump systems

The principle of heat pumps


Heat pumps are devices that draw heat from one place to another at expenditure of external work. Usually it's from a cooler to a warmer place. The source of external work is electrical energy. 

When labeling the various principles of low-potential heat removal and subsequent conversion into usable heat we see a combination of two words. The first word indicates an environment where heat is drawn and the second word is the system in which the heat is used for heating.

The basic principles are:

1. Ground - Water
The heat pump extracts heat stored in the soil using a horizontal collector or vertical geothermal
collector. The collected heat is transferred to the heating water.

2. Air - Water
The heat pump extracts heat from the air and transfers it to the heating water. This system is
subdivided into outdoor mono-blog, indoor mono-blog and split systems. Split systems have two
versions, a so-called fixed speed, which can not continuously control performance and systems with
continuous power control.

3. Air - Air
The heat pump extracts heat from the air and transfers it to the hot-air system.

4. Water - Water
The heat pump extracts heat from the water source (well, running water, lake) and transfers it to
the heating water.

Heat pumps air to water


Capital costs of heat pumps operating on the principle of air-water are generally lower and easier to install. They are one of the best sources of heating and hot water.

Based on our positive experience with the operation and efficiency, it appears that Split heat pumps with continuous power regulation are the most efficient. These heat pumps consist of outdoor and indoor units that are interconnected with refrigeration pipes containing a working medium - ecological refrigerant R - 410a. The outdoor unit contains the compressor, evaporator, expansion valve and fans.

The indoor unit contains a heat exchanger, circulation pump and controls. Unlike internal compact units, our split systems have all noisy and vibrating components located outside the building. There is only minimum space requirements inside the building. Because heating water remains within the building, there is no need to deal with antifreeze protection of the outdoor unit or filling the heating system with antifreeze, which reduces the efficiency of the transmission of heat from the refrigerant to the heating water.


AC Heating Heat pumps Convert AW


Heat pumps Convert AW are Split devices with continuous power control. They are designed for heating of family houses, apartment buildings and commercial buildings (schools, nursing homes, hotels, leisure centers...). They provide traditional space heating, heating via heat recovery units, domestic hot water and cooling. Heat pump Convert AW comes in 1-phase or 3-phase designs. The standards are: Environmentally friendly refrigerant R – 410a, patented twin rotary compressor - inverter controlled, electronically controlled expansion valve, fans with a patented design (very low noise). Soft start, with no power surges.

Outdoor units are manufactured by Toshiba in Japan. Output and performance management is adapted to the European climate.

Indoor units include stainless steel heat exchangers Alfa Laval or SWEP and a circulation pump Wilo or Grundfos. Regulation xCC optimizes the operating parameters of the heat pump, while efficiently managing the entire heating system, including the operation of bivalent source.

The regulation xCC (xCascade Control) was developed for cascade control of heat pumps Convert AW and allows their use in all types of heating systems.

The regulation system xCC is designed as an open system and can be expanded with additional functions. The standard is an internet connection, control via web interface, remote management and diagnostics.

The warranty on AC Heating heat pumps Convert AW is up to 7 years.




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