How does the daikin Altherma 3 Integrated R32 air-water heat pump work?

Its operation, in a nutshell, is given by the presence of a closed circuit within which there is a refrigerant fluid subject to cyclic changes of state, which precisely passes from the liquid to the vaporized phase and vice versa. These changes obviously result in changes in pressure and temperature, which occur first at the level of the evaporator where, by acquiring heat from the air, the heat pump is able precisely to transform the fluid from liquid to vapor. At this point, using electrical energy instead, there will again be a transition to the liquid state at the height of the compressor, and at this stage the machinery gives up heat to the system, all of which occurs cyclically and is terminated by means of an expansion valve that allows the fluid to return to its starting conditions.

Considering the energy balance related to the operation of the heat pump we surely realize that this is essentially positive, meaning in these terms that the share of thermal energy produced is at least 5 times greater than the expenditure of electricity. The advantage then of being able to use the machinery both in summer, to cool, and in winter, to heat, makes it one of the most convenient solutions in the domestic sphere, without considering the fact that the whole can be associated with the presence of a photovoltaic system, which would further increase the aforementioned convenience. In addition, the non-use of combustion sources associated with the use of electricity, which, as mentioned, can be self-produced by photovoltaics, brings the system into a framework of almost total cost reduction. We are therefore referring to solar thermodynamic, a system through which the special features of heat pumps and a thermal-type solar collector are combined with a small solar panel, a compressor component, and a water tank.

 

Why choose the daikin Altherma 3 Integrated R32 air-water heat pump:

• A 230-liter stainless steel domestic hot water tank combined with a heat pump ensure faster installation than conventional systems
• All plumbing components are integrated; therefore, no third-party components are required
• Electronic board and hydraulic components are located on the front for easy access
• Small installation footprint: 600 x 600 mm
• Integrated auxiliary heater
• Optional smart grid function for maximum integration with photovoltaic system
• Floor-standing unit with integrated domestic hot water storage tank
• 100 % guaranteed comfort in a compact unit
• All components and connections are factory installed
• 230 l storage tank for always available domestic hot water
• Modern and elegant design 
  
   

High performance: The Daikin Altherma 3 chiller's innovative R32-based Inverter compressor with Bluevolution technology, combined with climate control, enables high performance with associated lower operating costs. Already ready for A+++ class, the new Altherma 3 range achieves a nominal COP value of 5.1 at 7°C outdoor and 35°C flow and a COP of 3.3 in domestic hot water production (EN16147). Capable of reaching flow temperatures of up to 65°C at high efficiency, Daikin Altherma 3 with R32 is suitable for both underfloor heating and using radiators, and maintains renowned frost protection features down to -25°C for reliable operation even in the coldest climates.

 

Ease of installation: Ten years of experience in creating air-to-water heat pumps and more than 350,000 units installed throughout Europe have resulted in a new range that is easier and faster to install and use. Setup has been simplified with a new wizard that allows installers to configure the unit in just a few steps and get it up and running quickly. Configuration of the unit, depending on the type of system and requirements, can also be done remotely and then uploaded to the unit's electronic board on the day of installation via USB or SD Card.

 

Daikin Eye Intuitive Daikin eye sensor shows system status in real time

• Blue = optimal operation!
• If it turns red, an error has occurred.
  
   

Air-to-water split system consisting of outdoor unit and indoor unit with 230-liter domestic hot water storage for ultra-high efficiency heating, cooling and domestic hot water production:

• Modern and elegant design
• High efficiency for all applications due to flow temperature up to 65°C, suitable for both underfloor heating and using radiators
• The first residential water heating system to use lR32, the innovative low-GWP refrigerant gas
• High seasonal efficiency in heating enables it to achieve not only the current highest A++ class but also the A+++ class that will come into effect in 2019
• Small footprint: only 60x60 cm!
• Includes all the hydraulic components required for installation: high-efficiency circulator, defang filter with deaeration system, and by-pass valve
• Simple installation: all connections to the system and refrigerant are at the top of the unit
• Simple maintenance: the electronic board and all hydraulic components are accessible from the front
• New MMI: Innovative control panel with new, modern design with wizard for quick setup and an intuitive, easy-to-understand menu
• WLAN card included for remote control and monitoring of the system via App
• Voice control possible via Google Assistant or Amazon Alexa
• Smart grid function for maximum integration with the PV system.
  
   

Kit component specifications:

Daikin Altherma 3 R F Underfloor air-to-water heat pump for heating, cooling and hot water production; ideal for low-energy homes:

 

Features:

• Nominal Heating Capacity. kW 5.90
• Nominal Heating Absorbed Capacity kW 1.69
• Cooling Capacity Nominal kW 5.09
• Power input Cooling Nominal kW 1.55
• COP 3.50
• EER 3.28

Ambient heating:

• Water output with average climatic conditions 55°C SCOP 3.28
• Seasonal efficiency class for space heating A++/A+++
• (Seasonal efficiency for space heating 178%).

Domestic hot water heating:

• Declared load profile XL
• (Water heating efficiency 134%)
• Water heating energy efficiency class A+.

Indoor unit:

• Color White/Black
• Material Resin/laminate
• Unit Dimensions Height x Width x Depth : 1,850x595x625 mm
• Unit Weight kg 128
• Water volume 230 liters
• Tank Max. water temperature 70 degrees
• Max. water pressure bar 10
• Corrosion protection Pickling
• Operating range (Water side) Heating Min.~Max. °C 15~65 - Cooling Min.~Max. °C 5~22
• Domestic water MAx 70 Degrees
• Rated sound power level dBA 42
• Rated sound pressure level dBA 28
• Domestic water hydraulic connections cold inlet/hot outlet G 1" Male recirculation
• System supply/return hydraulic connections G 1" Female.

Outdoor Unit:

• Unit Dimensions Height x Width x Depth mm 740x884x388
• Unit Weight kg 58.5
• 1 Swing-type hermetic compressor
• Operating range (Outdoor temp.): Heating Min.~Max. °C -25~25 - Cooling Min.~Max. °CBS 10.0~43.0 - Domestic hot water Min.~Max. °CBS -25~35
• Refrigerant R32
• Charge 1.50 kg
• Control Expansion valve
• Sound power level Heating/cooling rated 60/62
• Sound pressure level Heating/Cooling rated 47/49
• Power Supply Name/Phase/Frequency/Voltage Hz/V V3/1N~/50/230
• Current Recommended fuses A 25
• Maximum distance Indoor unit - outdoor unit m 30
• Refrigerant piping Gas mm 15.9 (5/8)
• Liquid refrigerant piping mm 6.35 (1/4).