Water source heat pump PQRY-P YLM-A1
Line WR2
The VRF CITY MULTI line WR2 system
combines all the benefits of the R2 line with the additional advantages of a system that uses water as the heat source, making it suitable for wide range of applications. Mitsubishi Electric now offers a dual heat recovery mode of operation. The first heat recovery occurs within the refrigeration system: simultaneous cooling and heating mode operation is available due to the fact that heat recovery occurs between the indoor units. The second heat recovery takes place within the water circuit and is realized between the outdoor units. This dual heat recovery operation greatly improves energy efficiency and makes this system the ideal solution to meet the requirements of modern buildings in which some areas may need to be cooled even in winter.
Technical sheet
Low weight
Significant weight reduction allows you to benefit from easier transport and installation.
Adoption of the single module in Large version allows a weight reduction of up to 44% compared to the previous series.
Chassis
Increased energy efficiency
The WR2 line of units and WR2 guarantees top EER and COP values while improving on the (already high) performance of the previous series.
Both in single-module and multi-module models, cooling and heating efficiency values have been increased by up to 34%.
The inherent property of geothermal systems to maintain a favorable and constant temperature throughout operation makes these systems among the most efficient in the world.
Benefits
The VRF CITY MULTI line and WR2 VRF systems inherit all the benefits of the Y line by using water condensation and evaporation units.
Water-cooled condensing units benefit from being able to be installed inside buildings allowing even greater design flexibility and virtually no limitation to the size of the infrastructure.
Relating to the capacity of the outdoor unit, up to 26 indoor units can be connected to a single condensing unit and up to 50 indoor units to a modular system with individualized and/or centralized control.
The two-pipe system allows transition from cooling to heating and vice versa, ensuring that high comfort is maintained in all zones.
Water flow rate control
Water-cooled YLM units are equipped as standard with an automatic water flow control system so as to make it possible to reduce the amount of water circulating in the system and consequently pumping consumption when the system is working at reduced load.
Flow rate modulation is done through a voltage signal (0-10V) that can control the opening and closing of a control valve (not supplied by Mitsubishi Electric).
Thanks to the initial pre-setting of the system, water circulation in the heat pump is guaranteed even in the situation of temporary power failure.
Geothermal applications
The outdoor units of the line and WR2 perfectly embrace the field of geothermal energy by benefiting from a carrier fluid--water--that from 10m below ground maintains its temperature constant, without significant temperature fluctuations throughout the year.A geothermal system uses the ground as a heat source in winter, and as a hot well in summer.
Thanks to the use of geothermal probes (heat exchangers) and VRF CITY MULTI and WR2 systems, it is possible to extract heat from the ground to heat the room in winter and give up heat to the ground to cool the room during summer.
Mitsubishi Electric puts the best professionals at your service to advise you in your choice and guide you through all the steps of purchase and installation.
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