A modern update on traditional systems, the R32 e-Series Chiller is Mitsubishi Electric’s most efficient chiller system yet.
Photo Credit: Airmaster
The Versatile Solution – Stock Available Now
Available as a cooling only or heat pump version, the e-Series is suitable for both comfort and process cooling applications. The modular design is great for new or replacement projects and ideal for projects with future expansion plans – allowing for a reduced initial capital cost.
Mitsubishi Electric e-Series Modular Chillers are currently operating in New Zealand hotels and commercial buildings, as well as experiencing growth in industries such as horticulture, dairy and industrial processing plants due to its superior efficiency and versatility.
*(BS) Coastal Protection and (-N) built-in header type options available.
Reduced Environmental Impact by Using R32 Refrigerant
With the New Zealand Government’s ratification of the International Kigali Amendment in 2020 sparking a steep phasedown of HFCs, building owners, facility managers and the construction industry have been looking for HVAC systems that deliver high operational efficiency whilst minimising the GWP of the refrigerants used within these systems.
The new R32 e-Series Modular Chillers offer significant environmental benefits over conventional R410A chillers. The use of R32 compatible compressors and flat tube heat exchangers allows for approximately 68% reduction in refrigeration volume and approximately 89% reduction in CO2 equivalent in the EACV-M1500YC(-N)(-BS).
Enhanced Efficiency Through R32-Compatible Inverter Compressor
A new compressor with a suction chamber injection mechanism and an inverter control system that automatically controls the operating frequency realise the use of R32 refrigerant and a wide water operating range.
e-Series Modular Chillers offer significantly improved seasonal efficiency when compared to R410A e-Series machines, which means that they cost less to operate over their lifetime.
Improved Annualised Operating Efficiency
*The values are calculated in accordance with EN14511.
High Performance Flat Tube Heat Exchanger
The use of high performance heat exchangers allows for a greater surface area whilst also keeping the units much narrower than conventional chillers. The inclusion of fins inside the flat tube heat exchanger divides the flow path of refrigerant and improves heat exchange effectiveness. This contributes to greater energy efficiency, reduction in refrigerant volume and a wider operating range.
New Water Side Heat Exchanger With Reduced Pressure Drop
Water Side Pressure Drop is reduced due to the new heat exchanger design. The heat exchanger assembly is complete with drain valve and air vents. These allow for easy air bleeding and draining of the heat exchanger.
Modular Format Ensures Design Flexibility and Reliable Operation
Up to six individual units can be connected together to provide a system capacity from 150-900kW for the M1500 model or 180-1080kW for the M1800 model. Using this modular approach reduces plant space requirements as well as simplifying logistics and installation.
A modular approach also lends itself to a staged installation for future HVAC demands, as modular chillers can be scaled accordingly and are easily replaced.
When installed using the inbuilt headers, individual modules can be isolated from the water circuit thanks to the inbuilt isolation valves. This allows for maintenance to be carried out while the other modules remain in operation.
Advanced Controls for Further Energy Savings
Typical chiller control systems allow units to run at a maximum capacity while other units are in standby during part load. The Mitsubishi Electric e-Series Chiller Range is designed to optimise chiller compressor frequency based on the number of connected units, maintaining the highest part load efficiency possible.
When the Overall System Load is 50%
Typical Chiller Control
e-Series Modular Chiller Range with Optimum Frequency Control
With up to six units operating in one bank, this function improves system efficiency when operating at low to medium loads. Furthermore the run time of each unit is equalised by the control system, this prevents uneven wear on the units and extends the lifespan of the system.
Market Leading Low Noise Levels
The e-Series Modular Chillers are by their nature much quieter than conventional chillers. By utilising highly efficient fan and compressor technologies within a uniquely shaped chassis, the e-Series Modular Chiller range offers low noise levels that are ideal for high density areas such as city centres where commercial and residential buildings mix.
e-Series Coastal Protection Models
While the standard e-Series models come with excellent corrosion resistance, the Coastal Protection e-Series models (-BS) go a step further by treating external panels and other key elements to a higher paint specification, providing further protection from aggressive salt environments often needed in New Zealand.
Easy Control
The water temperature in each module can be controlled using local remote controller PAR-W31MAA or by using centralised controller AE-200E. The AE-200E controller can centrally control up to 24 units or 24 systems connected via M-Net. The maximum number of connectable units can be further increased using EW-50E or AE-50E Expansion Controllers.
To learn how the Mitsubishi Electric Range of R32 e-Series Modular Chillers can work for your next project, please contact your Regional Sales Engineer.