PANASONIC Panasonic A2W Heat Pump Aquarea K T-CAP, 3ph, 12 kW, Outdoor Unit – WH-UXZ12KE8

Air/water heat pump in split design with impressed current anode

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

Indoor unit
Particularly compact housing made of galvanized and stove-enamelled sheet steel, color: white, with an almost square footprint (602 x 599 mm) and low height (1642 mm). Front can be completely removed for full access to the unit components. Unit installation on the floor, leveling using height-adjustable feet. Separate sheet steel control box with its own hinged door for electrical connections located inside the housing on the front. Control unit accessible without opening the housing.
All sensor readings can be retrieved via the control unit, 2 x CN-CNT connections MODBUS and Cloud Adapter can be connected, energy and heat meters can be connected via MODBUS. Hot water tank made of stainless steel (EN material no. 1.4521), capacity 185 l, including stainless steel water heat exchanger, including impressed current anode and tank temperature sensor, insulation with U-Vacua thermal insulation and polystyrene, design pressure 10 bar

Hydraulic circuit
Plate heat exchanger made of stainless steel. Circulation pump as a Panasonic high-efficiency pump with DC motor, continuously controlled. Flow monitoring. Vortex flow meter for dynamic adjustment of the water flow rate depending on the specified temperature spread, integrated dirty water magnetic filter for the water circuit, electric heating element with thermal overcurrent release. Safety and vent 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 hydromodule is 60 °C and is reached even down to -10 °C outside temperature. The minimum water outlet temperature in cooling mode is 5 °C. Heating mode up to -20 °C, cooling mode up to +10 °C outside temperature possible. 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 in a row next to each other upwards out of the unit.

Control
Modulating power adjustment of the compressor by INVERTER+ control electronics. Temperature sensors for outside temperature, compressor, hot gas and suction line temperature as well as evaporator temperature. Higher efficiency, as the compressor starts in partial load operation and the compressor frequency is increased if required, 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 hydromodule. 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 the Aquarea Smart Cloud (CZ-TAW1B)

Electrical equipment:
• Electric auxiliary heater 9kW
• Thermal overload protection for electric auxiliary heater
• RCD
• Control inputs and outputs

System
The system is optimized for R32 refrigerant with low global warming potential. Functions include heating mode, cooling mode, screed drying, automatic mode, display of energy consumption and generation. Further functions: weekly timer, holiday programs, secondary pump control, bivalence control, optional control via outdoor temperature sensor or room temperature sensor/thermostat, intelligent quiet mode (priority quiet mode "performance"), optional board for additional functions such as control and temperature regulation of a buffer tank, control of two heating circuits (including swimming pool heating), input for external shutdown of the outdoor unit, integration of a solar station, external fault messages, inputs for SG-Ready control. Integration into third-party BMS systems via optional interfaces. Optional Smart Cloud adapter for operation and remote maintenance via Panasonic Cloud applications. Simultaneous use of the BMS system and the Smart Cloud adapter. Self-diagnosis system with display of error codes, improved defrosting function, during defrosting operation the heat pump can switch to hot water mode.
Separate heating or domestic hot water control with a clear control panel (controller) with backlit 3.5-inch display and keypad with touch keys. Easy-to-understand symbols and plain text menu displays in 16 different user languages. Additional quick menu for the user. Continuous display of outdoor and flow temperature. Outdoor temperature-controlled adjustment of the flow temperature in heating mode. Temperature sensors for condenser, flow and return temperature. Weekly timer for time-dependent on/off switching and operating mode pre-setting. Programmable timer for thermal disinfection. Demand-dependent control of the electric auxiliary heater.

Conformity with EU directives
The device complies with the relevant EU directives and standards.

Technical data
Heating capacity / COP (A7/W35) 12.10 kW / 4.84
Heating capacity / COP (A7/W55) 12.10 kW / 3.04
Heating capacity / COP (A2/W35) 12.00 kW / 3.44
Heating capacity / COP (A2/W55) 12.00 kW / 2.29
Heating capacity / COP (A–7/W35) 12.00 kW / 2.72
Heating capacity / COP (A–7/W55) 12.00 kW / 2.29
Cooling capacity / EER (A35/W7) 10.70 kW / 2.68
Cooling capacity / EER (A35/W18) 10.70 kW / 3.92
Seasonal space heating energy efficiency (ηs,h), moderate climate, W35 / W55 % 180 / 135 SCOP 4.58 / 3.46
Energy efficiency class Heating, moderate climate, scale: A+++ to D, W35 / W55 A+++ / A++
Seasonal space heating energy efficiency (ηs,h), warmer climate, W35 / W55 % 256 / 171 SCOP 6.47 / 4.34
Energy efficiency class Heating, warmer climate, scale: A+++ to D, W35 / W55 A+++ / A+++
Seasonal space heating energy efficiency (ηs,h), colder climate, W35 / W55 % 169 / 127 SCOP 4.31 / 3.26
Energy efficiency class Heating, colder climate, scale: A+++ to D, W35 / W55 A++ / A++

Outdoor unit WH-UXZ12KE8
Sound power level (partial load, ErP, A7/W55) Heating dB(A) 65
Sound power level (full load, Er) Heating / Cooling dB(A) 62 /
Dimensions / Net weight H x W x D mm / kg 1340 x 900 x 320 / 90
Pre-filled refrigerant quantity (R32) / CO2 equivalent kg / t 1.6 / 1.080
Pipe diameter Liquid line / Suction gas line mm (inch) 6.35 (1/4) / 12.70 (1/2)
Pipe length (min. – max.) m 3–30
Height difference ID/OD (max.) m 20
Operating range outdoor temperature °C –28 /+35
Water outlet temp. Heating / Cooling °C 20 – 60 (above -10°C ambient temp.) / 5 – 20