ecodan® Air-to-Water Heat Pump

The ecodan® air-to-water (ATW) heat pump product line from Mitsubishi Electric is designed for hydronic heating and cooling and domestic hot water (DHW) applications. Engineered to deliver comfort, efficiency, and reliability, ecodan systems utilize advanced ATW heat pump technology, offering customers a modern, all-electric alternative to traditional boilers. The system distributes heat through fan coils, radiators, baseboard heaters or underfloor heating, and optionally provides cool air through the fan coils. It also offers DHW, making it a complete solution for year-round comfort. With a compact, discreet design harmonized for diverse spaces and quiet operation between 43 and 49 dB(A), ecodan units are designed for those seeking to reduce their carbon footprint and energy use without compromising on performance. The product line features hyper-heating technology for reliable operation even in low ambient temperatures, smart controls to reduce energy use, and an installation and maintenance conscious design with an all-in-one Hydrobox. The ecodan ATW heat pumps use a hydronic distribution system to heat and cool the home through hydronic emitters. METUS will offer three Hyper-Heating INVERTER® (H2i®) WUZ outdoor models – with two-, three-, and four-ton capacities. The all-climate heat pumps have a maximum flow temperature of 158° F. The product line’s all-in-one indoor Hydrobox is compatible with all three outdoor units. The Hydrobox includes all key water circuit components, including the pumps, expansion vessel, magnetic filter, booster heater, and plate heat exchanger. A quick setup guide is included with the Hydrobox to facilitate installation. Conventional hydronic systems employ water piping between outdoor and indoor units, which often requires glycol in low-temperature applications. Glycol can be messy, require extra components, and introduce additional leak points, resulting in more maintenance. Mitsubishi Electric ecodan systems instead use refrigerant piping to connect outdoor and indoor units, eliminating those maintenance requirements. Additional features include: An optional, indirect 60- or 85-gallon DHW tank, boiler interlock with smart auxiliary/back-up control, controller with intuitive user interface (touch and color screen), flow Temperature Control board with multiple inputs/outputs controlling third-party components, and anti-vibration structure of the outdoor unit to help reduce operating noise, achieving whisper-quiet (below 25 decibels) operation.