Heat pump indoor unit Mitsubishi Electric Ecodan with integrated boiler ERST17D-VM6E (170 litres)

170 liters is a practical hydraulic module for organizing heating, cooling and domestic hot water production in a modern home. The model is designed to operate as part of Mitsubishi Electric Ecodan split systems and is suitable for private houses, cottages, townhouses, apartments with autonomous heating, small offices and other properties where a reliable air-to-water system is required.

Thanks to the integrated 170-liter boiler, the indoor unit makes it possible to avoid installing a separate storage water heater. This is especially convenient for spaces where rational use of space is important: a boiler room, technical room, storage room or engineering area. The equipment combines a hydraulic module and a hot water tank in one casing, making the system neater, more compact and easier to install.

Built-in stainless steel tank

The domestic hot water tank is made of stainless steel, which offers high corrosion resistance and is suitable for most water types. This design increases the durability of the indoor unit and helps maintain reliable system operation for many years.

Additional protection is provided by the standard anti-scale filter. It reduces the risk of limescale formation in the domestic hot water heat exchanger, helps maintain stable performance and lowers the likelihood of frequent maintenance. For the user, this means more reliable heat pump operation and a long service life of the hydraulic module.

Heating, cooling and domestic hot water

Mitsubishi Electric Ecodan ERST17D-VM6E supports three main operating modes: heating, cooling and domestic hot water production. This versatility allows the system to be used all year round. In winter, the heat pump provides comfortable heating; in summer, it can operate for cooling through compatible water emitters; and hot water is available regardless of the season.

As part of a compatible system, the heat pump can provide an outlet water temperature of up to 60°C at an outdoor temperature down to -3°C without the need to use a backup power source. Rated heating capacity is maintained in the range from +7°C to -3°C, which is especially important for stable operation in transitional seasons and during the cold period.

Control of two heating zones

The Ecodan indoor unit allows control of two independent heating zones. This is convenient for houses with several floors, different types of rooms or various heating devices. For example, one zone can use underfloor heating with a low flow temperature, while the other can use radiators, fan coils or fan-assisted convectors.

This layout helps adjust comfort more precisely in each part of the house. The temperature in bedrooms, living rooms, bathrooms or workspaces can be regulated individually, depending on the needs of the residents and the characteristics of the building.

Self-adaptive control and energy savings

The self-adaptive control mode helps reduce energy consumption without losing comfort. The system takes passive heat gains into account: solar radiation, the presence of people in the room, operation of household appliances and other factors. As a result, the heat pump adjusts its output according to the building’s actual heating demand.

The user does not need to constantly adjust the heating curve. It is enough to set the comfortable temperature, and the automation will independently adapt equipment operation to the current conditions.

Stable operation in cold weather

The Mitsubishi Electric Ecodan range is designed for operation during the cold season. Guaranteed system operation is possible at outdoor temperatures down to -25°C. To maintain efficiency in winter conditions, the outdoor unit defrosting process is provided; on average, it lasts no more than 10 minutes and minimizes the impact on indoor thermal comfort.

Remote control via MELCloud

When an additional Wi-Fi interface is installed, the Mitsubishi Electric Ecodan system can connect to the home network and be controlled remotely via the MELCloud service. The user can control heating, cooling and domestic hot water from a smartphone, tablet or computer.

This is especially convenient for homeowners in Chisinau and Moldova who want to prepare a comfortable temperature before arrival, monitor the system while away or optimize energy consumption.

Flexible split-system installation

The split configuration provides broad possibilities for design and installation. The total length of the refrigerant lines can reach up to 80 meters, allowing greater freedom in choosing the location of the outdoor and indoor units. In addition, this type of system does not require freeze protection for the water circuit between the units.

Mitsubishi Electric Ecodan ERST17D-VM6E is a reliable heat pump indoor unit with an integrated 170-liter boiler for those looking for a compact, economical and durable solution for heating, cooling and domestic hot water production.