Pure Natural Refrigerant
R290 is a pure refrigerant without blends, ensuring stable operation and reliable thermodynamic properties throughout the entire service life of the unit.
MTA ARIES N iASN
Air-cooled industrial chillers with inverter reciprocating compressors and the natural refrigerant R290 (GWP 3) for process cooling and air conditioning applications.
| Nominal Cooling Capacity: 170–320 kW |
| Refrigerant: R290 (GWP 3, ODP 0) |
| Compressors: 2 reciprocating compressors in 2 refrigerant circuits (1 on/off + 1 inverter) |
| EER: up to 4.29 (25 °C / 20–15 °C) • up to 2.84 (35 °C / 12–7 °C) |
| SEPR / SEER: SEPR HT up to 5.75 • SEER up to 4.15 |
| Heat Exchanger: Brazed plate evaporator |
| Condenser: Microchannel |
| Fans: EC axial (brushless) |
| Electrical Enclosure Protection: IP54 |
| Nominal Cooling Capacity: 170–320 kW |
| Refrigerant: R290 (GWP 3, ODP 0) |
| Compressors: 2 reciprocating compressors in 2 refrigerant circuits (1 on/off + 1 inverter) |
| EER: up to 4.29 (25 °C / 20–15 °C) • up to 2.84 (35 °C / 12–7 °C) |
| SEPR / SEER: SEPR HT up to 5.75 • SEER up to 4.15 |
| Heat Exchanger: Brazed plate evaporator |
| Condenser: Microchannel |
| Fans: EC axial (brushless) |
| Electrical Enclosure Protection: IP54 |
- iASN (1+i) configuration with two refrigerant circuitsTwo reciprocating compressors in two refrigerant circuits (1 on/off + 1 inverter) ensure maximum efficiency across the entire operating range.
- Natural refrigerant R290Natural refrigerant with an ultra-low Global Warming Potential (GWP 3) and zero Ozone Depletion Potential (ODP 0).
- Compressor crankcase heater and phase monitoringThe crankcase heater and phase monitoring system ensure safe compressor operation and long-term reliability.
- Integrated acoustic enclosureThe integrated cabinet with an acoustically insulated compressor compartment significantly reduces operating noise.
- Brazed plate evaporatorHigh-efficiency brazed plate heat exchanger providing excellent heat transfer in a compact design.
- Microchannel condenserAluminum microchannel condenser reducing refrigerant charge while improving energy efficiency.
- EC axial fansBrushless EC fans with aluminum blades and protective guards ensure high efficiency and quiet operation.
- Electronic expansion valvesPrecise refrigerant flow control ensures stable operation under all operating conditions.
- IP54 electrical enclosureIndustrial-grade IP54 protection ensures reliable operation of electrical components even in demanding environments.
- Touchscreen microprocessor controllerAn intuitive user interface provides complete system monitoring, diagnostics, and configuration of all key operating parameters.
- Modbus RS485 communicationIntegrated serial communication interface for seamless connection to monitoring and building management systems.
- Compressor service valves (IN/OUT)Service valves simplify maintenance and servicing of the refrigeration circuit.
- Victaulic hydraulic connection kitA Victaulic hydraulic connection kit is supplied as standard with every unit for faster installation.
- Factory testing and verificationEvery unit undergoes comprehensive functional testing and performance verification before delivery.
| Parameter | 075 | 100 | 110 | 150 |
|---|---|---|---|---|
| Nominal Cooling Capacity (1) [kW] | 232,1 | 297,5 | 360,5 | 447,7 |
| Total Power Input (1) [kW] | 56,3 | 69,3 | 90,6 | 107,1 |
| EER (1) | 4,13 | 4,29 | 3,98 | 4,18 |
| SEPR HT (2) | 5,34 | 5,58 | 5,02 | 5,10 |
| SEPR MT (3) | 3,85 | 3,94 | 3,68 | 3,58 |
| Nominal Cooling Capacity (4) [kW] | 170,2 | 215,5 | 259,8 | 318,9 |
| Total Power Input (4) [kW] | 61,2 | 76,6 | 95,6 | 112,5 |
| EER (4) | 2,78 | 2,81 | 2,72 | 2,84 |
| SEER (5) | 4,10 | 4,15 | 4,12 | 4,10 |
| Maximum Ambient Air Temperature (6) [°C] | 45 | |||
| Power Supply [V / Ph / Hz] | 400 ±10 % / 3-PE / 50 | |||
| Circuits / Compressors [No. / Type] | 1 on/off + 1 inverter | |||
| Sound Power Level (7) [dB(A)] | 93 | 95 | 95 | 97 |
| Sound Pressure Level (8) [dB(A)] | 65 | 67 | 67 | 69 |
| Width [mm] | 2238 | 2241 | 2241 | 2241 |
| Depth [mm] | 3541 | 3541 | 3541 | 4531 |
| Height [mm] | 2475 | |||
| Installed Weight [kg] | 2191 | 2422 | 2649 | 3309 |
Why Choose the MTA ARIES N iASN?
Minimal Environmental Impact
The natural refrigerant R290 has a Global Warming Potential of only GWP 3 (AR4) and an Ozone Depletion Potential of 0, making it one of the most sustainable solutions for industrial cooling.
High Level of Safety
Despite using an A3-class refrigerant (ASHRAE), the unit is designed in accordance with the strictest safety standards and equipped with comprehensive built-in safety features.
Lower Long-Term Costs
Using R290 reduces exposure to costs associated with F-gas regulations and may qualify for national incentives promoting environmentally friendly technologies.
Future-Proof Solution
R290 is not affected by HFC phase-down regulations, making it a secure long-term investment that complies with future environmental legislation.
Outstanding Energy Efficiency
The excellent thermodynamic properties of R290 combined with inverter technology ensure high efficiency and stable operation across a wide load range.
Plug & Play Design
Key hydraulic and mechanical components are factory-integrated, while additional kits allow simple customization for virtually any application.
Easy Maintenance
The thoughtfully engineered design provides quick access to all major components, reducing service time and simplifying routine maintenance.
Smart Control & Diagnostics
The touchscreen microprocessor controller offers advanced diagnostics, data logging, and connectivity via Ethernet, USB, and RS485 Modbus for seamless BMS integration.
Microchannel Condensers
Aluminum microchannel condensers reduce refrigerant charge by approximately 30%, improve heat transfer efficiency, and are also available with an epoxy protective coating for corrosive environments.
Quieter Operation
The acoustically optimized cabinet and insulated compressor compartment reduce noise emissions, while the optional SHE version provides even lower sound levels.
Process Cooling
ReliabilityReliable process cooling for industrial applications where stable operating conditions, high energy efficiency, and continuous operation are essential.
Building Air Conditioning
HVACAn efficient source of chilled water for central HVAC systems in commercial and industrial buildings, delivering high seasonal efficiency and minimal environmental impact.
Manufacturing Industry
Industrial CoolingCooling of machinery, industrial processes, and production lines in the metalworking, plastics, and general manufacturing industries.
Food & Beverage Industry
StabilityProcess cooling for food and beverage production where stable temperatures and maximum refrigeration system reliability are essential.
Pharmaceutical & Chemical Industry
PrecisionSuitable for pharmaceutical and chemical applications requiring precise temperature control, high reliability, and maximum operational safety.
Data Centers
24/7 OperationCooling of IT infrastructure and technical facilities with high energy efficiency and continuous year-round operation.
Commercial & Public Buildings
Large FacilitiesAn ideal solution for office buildings, hospitals, educational institutions, shopping centers, and other large facilities with centralized cooling systems.
Industrial cooling
Describe your process and we will propose the right solution.
Fill in a short form and we will prepare a configuration proposal based on load profile, environment, and energy efficiency goals.
Sizing based on real operating loads
Energy consumption optimization
Supply, installation, and service
Where to find us
DirectionsPod lipami 4 · 1370 Logatec, Slovenija
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