PANASONIC Panasonic Heat Pump R290 Aquarea M Air/Water T-CAP, 12 kW, Outdoor Unit – WH-WXG12ME8

Panasonic Hydrosplit Aquarea T-CAP heat pump, three-phase, inverter-controlled, R290

Compact Combi Hydromodule
Compact Combi Hydromodule for air/water heat pump in hydrosplit design suitable for use with R290 refrigerant and a three-phase 400 V / 50 Hz mains connection as well as a hot water tank with 185 L storage volume.

Operating modes
Heating, hot water, cooling (cooling mode can be activated via setting)

Outdoor unit
Outdoor unit for air/water heat pump in hydrosplit design with R290 refrigerant and a three-phase 400 V / 50 Hz mains connection. The casing is made of galvanized and stove-enamelled sheet steel in anthracite grey (RAL 7016), is suitable for outdoor installation and has a removable casing lid for easy access to internal components. The base plate has mounting tabs and condensate openings. The axial fan has an enlarged fan diameter for constant air flow to reduce fan speed and is driven by a continuously variable DC motor and a sound- and flow-optimized plastic impeller. The control box is mounted higher for safe water drainage. A gas/liquid separator is present in the outdoor unit. Pressure resistance and leak tightness are factory tested and provided with an environmentally friendly basic refrigerant charge. The design specifications according to IEC 60335-2-40: 2022 are met. The heat exchanger consists of copper pipes with pressed-on Bluefin-coated aluminium fins. A 4-pole synchronous motor compressor and a 4-point vibration damper device as well as soundproof compressor material ensure a reduction in vibrations and noise. Electronic expansion valve, 4-way circuit reversing valve, filter drier and shut-off valves with test connection are included. Pipe lengths up to 30 m and height differences up to 30 m between indoor and outdoor unit are permissible.

Hydraulic circuit
The plate heat exchanger is made of stainless steel. The circulation pump as a Panasonic high-efficiency pump is continuously driven by a DC motor. Flow monitoring is present. A vortex flow meter for dynamic adjustment of the water flow rate depending on the specified temperature spread is present, as well as an integrated dirty water magnetic filter for the water circuit, an integrated electric heating element with 9 kW and a thermal overcurrent release. Built-in safety and vent valve as well as water pressure sensor for measuring system pressure. A 10-litre expansion tank is installed. Flow temperatures of up to 75 °C are possible and are achieved at outdoor temperatures down to -15 °C. The operating range in heating mode extends down to -28 °C. A water outlet temperature of 55 °C is reached at an outdoor temperature of up to -25 °C. In cooling mode, the operating range is between 10 °C and 43 °C outdoor temperature. With T-CAP technology, the nominal heating capacity remains constant at an outdoor temperature of up to -20 °C. System safety is increased by the hydraulic connection to the indoor unit and the separation of refrigerant in the outdoor unit and electronics in the indoor unit.

Control
Modulating capacity adjustment of the compressor through inverter control technology. High energy efficiency through operation start in partial load range and demand-controlled frequency increase. Equipped with temperature sensors for outdoor temperature, compressor, hot gas and suction line temperature as well as evaporator temperature. A circuit reversal process ensures rapid and efficient defrosting of the outdoor unit heat exchanger. Communication modules for optimal data exchange with the hydromodule. Separate heating and/or domestic hot water control with clear control panel and easy-to-understand symbols as well as plain text menu displays in 26 different user languages. Continuous display of outdoor and flow temperature as well as outdoor temperature-controlled adjustment of the flow temperature in heating mode are present. Temperature sensors for condenser, flow and return temperature. Display of system pressure, weekly timer for time-dependent switching on/off and operating mode selection. A programmable timer is available for thermal disinfection. The electric auxiliary heating is controlled as required.

Further functions
•Automatic operation (heating/cooling)
•Holiday mode
•Screed drying program
•Power consumption display
•Improved defrost function
•Hot water circulation
•Anti-stick mode (prevents components from seizing due to non-use)
•Finer tuning of the start sequence

Self-diagnosis system with display of error codes. Communication modules for optimal data exchange with the outdoor unit. Optional board for additional functions such as Smart-Grid control, power control via 0-10 V signal, control of two heating circuits including heating circuit pumps and mixing valves, solar thermal, external switching between heating and cooling. Smart Cloud Adapter. Setting for prioritizing quiet operation possible, so that a certain volume is not exceeded.

External connection options:
•Optional board 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 Panasonic Smart Cloud Electrical equipment:
•Electric auxiliary heating
•Thermal overload protection for electric auxiliary heating
•RCD switch
•Control inputs and outputs

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

Technical data
Heating capacity / COP (A7/W35) 12 kW / 5.06
Heating capacity / COP (A7/W55) 12 kW / 3.23
Heating capacity / COP (A2/W35) 12 kW / 3.54
Heating capacity / COP (A2/W55) 12 kW / 2.42
Heating capacity / COP (A–7/W35) 12 kW / 3
Heating capacity / COP (A–7/W55) 12 kW / 3.61
Heating capacity (A-20/W55) 12 kW
Cooling capacity / EER (A35/W7) 9 kW / 3.61
Cooling capacity / EER (A35/W18) 12 kW / 5.26
Seasonal space heating energy efficiency (ηs,h), average climate, W35 / W55 186 % /143 %
SCOP 5.00 / 3.46
Energy efficiency class Heating, average climate, scale: A+++ to D, W35 / W55 A+++ / A++

Outdoor unit
WH-WXG12ME8
Sound power level (partial load, ErP, A7/W55) Heating dB(A) 53
Sound power level (full load, ErP) Heating dB(A) 59
Dimensions / Net weight H x W x D mm / kg 1520 x 1200 x 430 / 163
Pre-charged refrigerant quantity (R290) / CO2 equivalent kg / t 1.78 / 0.006
Line length (standard / max.) m 5/30
Height difference ID/OD (max.) m 30
Operating range outdoor temperature °C –28 / +43
Water outlet temp. Heating (min. / max.) °C 25 / 75
Water outlet temp. Cooling (min. / max.) °C 5 / 20
High-efficiency pump Speed levels variable
Recommended RCD switch for mains connection A 20
Recommended cable cross-section (min.) for mains connection mm² 5x1.5