Close-up of the words 'mCHILLER' and 'FUGU' in bold black letters, with 'mCHILLER' in smaller font and 'FUGU' in large uppercase letters.

The mCHILLER FUGU is a Mayekawa plug-and-play standard solution with a strong focus on energy consumption and the perfect balance between durability and simplicity.

The mCHILLER FUGU is designed to meet the needs of industrial segments such as breweries, industrial processes, server farms, and building facilities. It has a strong industrial design, aimed at easy and simple installation, and has a long lifespan.

It is designed with ammonia, a natural refrigerant that gives the highest energy efficiency and the best sustainable solution. With an ammonia charge as low as 55 kg (122 lbs), the mCHILLER FUGU achieves a high level of safety.  


The production is based on highly detailed 3D models to ensure 100% similarity across all orders. All chillers can be ordered with an EOLT Report (End of Line Test) that is performed at our factory. The EOLT includes a full load thermal performance test and vibration measurements.

The mCHILLER FUGU also follows the ECO Design requirements.

  • Powered by high-efficiency MYCOM MII reciprocating compressors paired with variable speed drives (VSD), the chiller achieves best-in-class energy efficiency, particularly during part-load conditions. Optional heat recovery options further optimize overall plant energy utilization, significantly reducing operational expenditures.

  • The mCHILLER FUGU operates on low-charge R717 (ammonia), a natural, highly sustainable refrigerant with zero ozone depletion and zero global warming potential. It delivers an environmentally friendly cooling solution designed to comply with evolving environmental regulations without compromising performance.

  • The mCHILLER FUGU can have multiple control targets depending on the application needs further expanding its capability to fit the needs of your project.

  • Several mCHILLER FUGUs can be operated together under a cascade (sequencing) control scheme that stages capacity up and down to match plant demand.

  • Engineered as a compact, all-in-one water-to-water package, the unit minimizes footprint requirements and streamlines site integration. Pre-configured with an intuitive PLC controller and straightforward top-feed power supply connections, it ensures rapid and hassle-free commissioning and start up.

  • Built according to EN378 with PED-compliant components and rigorous automatic safety protections, the system ensures secure everyday functioning. Features like automated oil return, precise pressure monitoring, and an integrated electronic level gauge maintain stable, dependable operations across industrial environments.

  • The mCHILLER FUGU comes with a bended sheet metal base frame with integrated drip tray that ensures any drips from the unit is contained within the footprint of the unit.

  • The mCHILLER FUGU is a standardized, serial-produced product. This improves component quality and allows documentation, and product training to be available from the time of ordering. All produced units undergo end of line testing before shipping to validate performance and help ensure a smooth commissioning on site.

Key features & Benefits

Industrial machine with various pipes, a control panel, and a large black tank, labeled with Japanese characters and brand names.
Industrial machinery with pipes and components, branded Mayekawa, on a white base.

Technical Info

FUGU 1280R FUGU 960R FUGU 640R
General
Refrigerant/charge R717 / 80 kg R717 / 80 kg R717 / 55 kg
Capacity range 11 - 100 % 15 - 100 % 22 - 100 %
Cooling capacity 1376 kW828 kW 1038 kW621 kW 681 kW399 kW
Condenser capacity 1588 kW1025 kW 1196 kW768 kW 787 kW496 kW
Total power 252 kW234 kW 188 kW176 kW 125 kW115 kW
EER 5.5 (-)3.5 (-) 5.5 (-)3.5 (-) 5.5 (-)3.5 (-)
COP 6.3 (-)4.4 (-) 6.4 (-)4.4 (-) 6.3 (-)4.3 (-)
Evaporator
Secondary media WATERMEG - 30 % WATERMEG - 30 % WATERMEG - 30 %
Secondary inlet 12.0 °C0.0 °C 12.0 °C0.0 °C 12.0 °C0.0 °C
Secondary outlet 7.0 °C-5.0 °C 7.0 °C-5.0 °C 7.0 °C-5.0 °C
Secondary flow 236 m3/h156 m3/h 178 m3/h117 m3/h 117 m3/h75 m3/h
Condenser
Secondary media Water
Secondary inlet 30.0°C
Secondary outlet 35.0°C
Secondary flow 275 m3/h190 m3/h 207 m3/h143 m3/h 136 m3/h92 m3/h

*All information is subject to change without notice

Electrical
Model 1280R 960R 640R
System earthing TN-S
Input voltage 3X400VAC+PE
Rated package current 603A495A406A325A
IK Max. 20 kA
Maximum fuse 800A630A500A400A
Communication ModBus TCP/IP, OUC
Eco design
Model 1280R 960R 640R
SEPR (High temperature +7°C) 11.4712.0913.1
SEPR (Medium temperature -8°C) 5.595.686.03
SEPR (Comfort temperature +7°C) 9.369.7410.48
Calculated according to EN14825: 2019, High/Comfort temp +7°C Reg.2016/2281, and Medium temp -8°C Reg.2015/1095
DIMENSIONS AND WEIGHT
Model 1280R 960R 640R
Length (L) 4895 mm
Width (W) 1200 mm
Height (H) 2150 mm 1970 mm
Dry weight 8750 kg 8250 kg 6900 kg
DESIGN PARAMETERS
Design pressure - discharge side 25 bar
Design pressure - suction side 16 bar
Design temperature -30 / 150°C
Connections - Secondary media DN 100/DN80
Design pressure - Secondary media 10 bar
Brochure