Panasonic Aquarea WH-MDC07J3E5 is a 7kW Monoblock air-to-water heat pump with R32 refrigerant , which produces hot water directly from the outdoor unit inside, so refrigerant connections and permits are not required. The package includes the High Performance J-generation 1-stage Monoblock air-to-water heat pump outdoor unit, and the system's wired control controller CZ-RTC5B. The air-to-water heat pump has a 1-phase 3kW electric resistance as an additional energy source in cold weather. For defrosting the outdoor unit, you also need the mandatory outdoor unit base resistor Panasonic product number CZ-NE3P. The compact and highly efficient 7kW air-to-water heat pump is perfectly suited for, for example, new developments, low-energy houses and summer cottages.

Example units of air water system

Monoblock outdoor unit
- Panasonic Aquarea WH-MDC07J3E5 7kW Monoblock outdoor unit
The indoor unit is not needed, it is included in the package
- Panasonic Aquarea wired control controller CZ-RTC5B, with which the air water system is controlled
You also need a hot water tank and a buffer tank (min 200L / 100L)
- Also, the Panasonic outdoor unit bottom resistor CZ-NE3P is required

Buying and installing a device containing F gases - Monoblock air-to-water heat pumps
In Monoblock air-to-water heat pumps, the refrigeration circuit connections are factory-installed and ready in the outdoor unit, so refrigerant permits are not required for commissioning and installation of the system. The pipe connections of the supply and return water from the outdoor unit and other building technical air-water heat pump installation work can be done by anyone, but it is recommended to do them with the help of a professional. Especially when making pipe compression joints, it is good to act carefully and use appropriate compression tools. Electrical connection work is part of the work steps performed by an electrical professional.

Features of the heat pump

Refrigerant R32
Installation of Monoblock-type air-to-water heat pumps does not require F-gas permits, closed circuit
Smartphone control, available as an accessory, can be connected as part of a smart home system
Maximum flow water temperature 60 °C
High heating and cooling capacity, even at very low outside temperatures
Works with the compressor at full capacity without additional heating even at a temperature of -20 °C and produces heat down to -28 °C
Works in cooling mode when the outside temperature is only 10 °C
The internal magnetic filter facilitates installation
Suitable as an independent heating system, or alongside an existing system
The compressor has a 5-year warranty

Dimensioning the air-to-water heat pump
Panasonic Aquarea air-to-water heat pumps are suitable as a heat source for water-circulating radiators and floor heating objects, as well as for producing hot domestic water. Dimensioning the right size/power class of the heating system can be done, for example, according to the peak power demand (W/m2) for heating during severe frosts.

The maximum surface area to be heated in relation to the heating power of the heat pump

Heat pump heating power: 7 kW
Surface area to be heated
- New properties (40W/m2): 180 m2
- Renovation sites (55W/m2): 130 m2
- Log houses (75W/m2): 90 m2
  - In calculating the surface area, normal room height (max 2.8m) and indoor temperature (21 °C) have been used, as well as an estimate of the average design outdoor temperature in Finland.
  - To ensure sufficient heating capacity, please note that your heating system always has an additional electric resistance/other back-up heating system for winter's extreme cold (below -28 °C), when the air-to-water heat pump does not produce heat. The power of the electric resistance must be at least equal to the peak heating power requirement / the power of the outdoor unit of the air-to-water heat pump. An additional resistor can be placed, for example, in a buffer charger or a hybrid charger, if the electrical resistance of the indoor unit itself is not yet high enough (usually applies to systems over 9kW).

Sufficiency of domestic hot water according to the number of persons / volume of the hot water tank

Capacity of the hot water tank, 2-6 people: 150L - 200L
Capacity of the hot water storage tank, 6-10 people: 300L - 400L
Domestic water tank capacity, 10-15 people: 500L - 750L

The buffer accumulator of the heat distribution network balances the operation of the heat pump, it makes the operating periods of the compressor long enough and helps the heat pump to work as planned. It is especially useful when heat is produced in a water-circulating radiator network, where the amount of water is typically smaller than, for example, in water-circulating floor heating sites. We recommend the use of a buffer accumulator at least with radiators, it also helps with underfloor heating, especially in heating situations in damp rooms during the summer, when the amount of water in the floor circulation is small when the rest of the underfloor heating circuit is closed. In these situations, even the inverter compressors may run intermittently without the buffer charger connection.

The volume of the buffer tank in relation to the power of the heating system is chosen as a rule of thumb at a minimum of 10L/1kW
- The volume of the buffer tank with a heating power of 7 kW: 100 L

* Dimensioning calculations are indicative examples in a normal situation, and we do not bear responsibility for the calculations when the use of the heating system, as well as environmental and climate conditions vary.

The equipment manufacturer's dimensioning table helps in choosing the right model

heating system, Panasonic Aquarea:	Monoblock 7kW

Area to be heated:
Apartment 190-230 m²:
Apartment 150-190 m²:	✔
Apartment 100-150 m²:	✔
Apartment 50-100 m²:	✔
New construction:	✔
Summer cottage:	✔

Characteristics
SCOP, highest value:	4.6 A+++ / A++
Available in T-cap version:
Available as a 2-circuit version:
Available in a very quiet version:
Available as a high temperature version (65 °C):
The service water tank is included in the delivery:
The Smart Heat Pump function is included in the delivery:	✔
Compatible with Aquarea Smart Cloud service:	✔
Compatible with solar panels:	✔
Compatible with the AQUAVENT FTX unit
Compatible with Aquarea Air radiators:	✔

Heat pump technical data

Outdoor unit: WH-MDC07J3E5 7kW, High Performance, Monoblock, J-generation, 1-phase, Heating or cooling, R32
Heating power / COP (air 2 °C, water 35 °C) kW / COP: 7 / 3.4
Heating power / COP (air 2 °C, water 55 °C) kW / COP: 6.3 / 2.16
Heating power / COP (air -7 °C, water 35 °C) kW / COP: 6.8 / 2.81
Heating power / COP (air -7 °C, water 55 °C) kW / COP: 6.3 / 1.86
Cooling capacity / EER (air 35 °C, water 7 °C) kW / EER: 7 / 3.06
Cooling capacity / EER (air 35 °C, water 18 °C) kW / EER: 7 / 4.73
Seasonal energy efficiency – heating, ηs %: 193 / 130
average climate (water 35 °C / water 55 °C) SCOP: 4.9 / 3.32
Energy class, heating, average climate (water 35 °C / water 55 °C): A+++ / A++
Sound power, partial load 1) Heating dB(A): 59
Sound power, maximum load Heating / cooling dB(A): 68 / 67
Dimensions H x W x D, mm: 865 x 1,283 x 320
Net weight kg: 104
Refrigerant (R32) / CO2 eq. 2) kg / T: 1.3 / 0.878
Connection for the heating circuit inches: R 1¼
Pump
- Number of speeds: Variable speed
- Input power (minimum / maximum) W: 36 / 100
Heating water flow (ΔT = 5 K, 35 °C) l/min: 20.1
Built-in electric heater capacity kW: 3
Intake power
- Heating kW: 1.47
- Cooling kW: 2.29
Power consumption, start-up input power
Warm-up A: 7
Cooling A: 10.5
Current 1 A: 17
Current 2 A: 13
Operating range (outdoor temperatures):
- Heating °C: -20 to 35
- Cooling °C: 10 to 43
Supply water temperature
- Heating °C 20 - 60
- Cooling °C 5 to 20

Panasonic Aquarea air to water heat pumps
Panasonic manufactures high-quality air-to-water heat pumps for the heating needs of apartments and commercial premises. The wide selection of Aquarea heat pumps from 3 to 16 kW will help you find the right system for your heating or cooling needs. Cost-effective and environmentally friendly solutions are suitable for both new construction and renovation projects. In Panasonic's extensive collection, you will find a heat pump model suitable for your house, with which you can maximize comfort and the savings produced by the heat pump.

Applications
The Aquarea air-to-water heat pump is a good solution for new or existing households, as well as for all kinds of properties. The systems are particularly suitable for locations with water-circulating radiators and/or water-circulating underfloor heating. The system can work independently, or it can be combined with an existing gas, wood or oil-fired, etc. heating system as needed.

Increases user comfort
The Aquarea air-to-water heat pump is able to precisely adjust the temperature thanks to reliable Panasonic inverter compressors and easy-to-use control features. Aquarea heats your home efficiently even in more demanding conditions, the heat pumps work up to -28 °C outside temperature, and they work with the compressor at full capacity without additional heating even at a temperature of -20 °C. The heat pump has a wide range of different adjustment features, which you can use to ensure complete living comfort, as well as sufficient hot domestic water.

An air-to-water heat pump takes energy from the outside air
Based on advanced air-to-water heat pump technology, Aquarea is a very efficient and environmentally friendly system. It captures energy from the surrounding air and transfers it to the heating of the water and hot domestic water needed for heating the home and, if necessary, also cools your house. The system takes up to 80% of the required energy from the ambient air, even at very low temperatures.

Savings opportunities
With an air-to-water heat pump, it is possible to save up to more than 50% of the annual heating costs, at best even more. Its use is safe, carefree and effortless. With an air-to-water heat pump that utilizes new technology, home heating can be regulated in a much more versatile, intelligent and precise manner compared to, for example, traditional electric, wood and oil heating boilers. An air-to-water heat pump is typically more affordable in terms of acquisition costs than, for example, a geothermal heat pump.

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