PANASONIC Panasonic A2W Heat Pump Aquarea K HP, 1ph, 3 kW, Outdoor Unit – WH-UDZ03KE5

Air-to-water heat pump in split design

Description
Air-to-water heat pump for heating, domestic hot water preparation and cooling (cooling mode can be activated via settings), consisting of an outdoor unit and an indoor unit (combi hydro module), which is a combination of a hydro module and a hot water tank.

Outdoor unit
Outdoor unit for air-to-water heat pump in split design, 230 V, R32
Housing made of galvanized steel sheet with baked enamel finish RAL 7016, for outdoor installation, removable housing cover for easy access to internal components. Base plate with mounting tabs and condensate opening.
Axial fan with continuously variable DC motor and a plastic impeller optimized for sound and flow.
The system is optimized for R32 refrigerant with low global warming potential. Air-cooled heat exchanger made of copper tubes with corrugated aluminum fins with coating. Twin rotary compressor, sound-insulated and vibration-dampened mounting, and equipped with a pressure-side muffler. Electronic expansion valve, 4-way reversing valve, filter drier, and shut-off valves with test port. Factory-tested for pressure resistance and leak tightness and pre-filled with refrigerant. Long pipe lengths up to 40 m and height differences up to 30 m between indoor and outdoor units are permissible.

Hydraulic circuit
Stainless steel plate heat exchanger. Circulation pump as Panasonic high-efficiency pump with DC motor, continuously controlled. Flow monitoring. Vortex flow meter for dynamic adjustment of water flow rate depending on the specified temperature spread, integrated magnetic dirt filter for the water circuit, electric heating element with thermal overcurrent release. Safety and bleed valve, water pressure sensor for measuring system pressure. 10-liter expansion tank. 3-way valve for switching between hot water mode and heating or cooling mode. The maximum water outlet temperature at the combi hydro module is 60 °C and is achieved even at -10 °C ambient temperature. The minimum water outlet temperature in cooling mode is 5 °C. Heating mode possible down to -20 °C, cooling mode up to +10 °C ambient temperature. The maximum water temperature in the domestic hot water tank is 65 °C.

Connections
Connections for refrigerant lines as well as for flow and return (heating/cooling), cold water inlet and hot water outlet of the hot water tank are routed out of the unit upwards in a row next to each other.

Control
Modulating power adjustment of the compressor by INVERTER+ control electronics. Temperature sensors for outdoor temperature, compressor, hot gas and suction line temperature, and evaporator temperature. Higher efficiency because the compressor starts in partial load operation and the compressor frequency is increased as needed, circuit reversal for rapid and efficient defrosting of the outdoor unit heat exchanger. Improved defrosting behavior through bypass defrosting. Communication modules for optimal data exchange with the hydro module. Electronic manometer provides value in electronic form for transmission via WLAN

Optional board (CZ-NS5P) for additional functions:
• Control input for external on/off switching
• Control input for external room thermostat
• Control output for 2-way valve (cooling mode)
• Control output for 3-way valve (heating / domestic hot water)
• Interface for communication with Aquarea Smart Cloud (CZ-TAW1B)Electrical equipment:
• Electric auxiliary heater 3kW