Data center cooling on natural refrigerant — with no oil in the circuit.
Oil-free centrifugal turbocompressor chillers on R290 (propane), built in Europe for continuous, mission-critical operation. A modular multi-compressor design lets cooling capacity follow the IT load from a single 290 kW unit up to 3.5 MW.
Efficiency, continuous duty and precise control as computing loads change.
Data halls need cooling that runs around the clock and tracks a load that never sits still. The platform combines five engineering choices to do exactly that.
High full-load efficiency
COP 9.32 calculated at SST 30 °C / SDT 45 °C — ideal for warm-water and liquid-cooled IT.
Precise capacity control
Variable-speed compressors continuously match output to actual cooling demand.
Modular multi-compressor design
Compressor modules stage in and out, so the chiller delivers only the capacity required.
Oil-free operation
No oil pumps, filters or separators — no oil fouling the heat exchangers, less maintenance.
Natural R290 refrigerant
GWP 3, ODP 0 and outside the EU F-gas quota regime (Regulation 2024/573).
High-speed, oil-free centrifugal turbocompressor.
At the heart of the platform is a high-speed centrifugal turbocompressor. Its rotor floats on self-acting gas-dynamic bearings: a stabilising film of refrigerant gas eliminates mechanical contact at operating speed. With no oil circuit and no electromagnetic bearing control system, mechanical losses, wear and maintenance requirements all go down.
Oil-free centrifugal
No compressor oil circuit, oil pumps, filters or separators — and no oil-related efficiency losses.
Gas-dynamic bearings
A film of refrigerant gas supports the rotor, minimising contact, friction and wear.
Proven durability
Validated through more than 500,000 start-stop cycles.**
Variable speed
Compressor output adapts continuously to the actual cooling demand.
** Based on compressor manufacturer test data.
Cooling capacity follows the load — not the other way around.
Individual compressor modules are activated and speed-controlled by intelligent cascade control according to the actual cooling demand. Capacity scales in small steps, redundancy is built in, and partial-load efficiency stays high.
- ＋Intelligent cascade control
- ＋Capacity matched to demand
- ＋Modular capacity scaling
Compressor modules switched on as the IT load rises (illustrative).
From refrigerant detection to automated system response.
R290 combines strong thermodynamic performance with ultra-low global warming potential. Its use is backed by integrated detection, deliberate sensor placement and an automatic safety sequence.
Continuous propane detection
An integrated LEL gas sensor continuously monitors propane concentration inside the refrigeration compartment.
Strategic sensor placement
The sensor sits at the lowest point of the compartment — where propane, being heavier than air, would collect.
Automated safety response
At predefined thresholds the controller starts ventilation, raises an alarm and performs a controlled compressor shutdown.
Select the operating range. Scale the capacity.
All three ranges share the same oil-free R290 core and multi-compressor control. Capacity scales in modules within each range.
MT 290
Comfort & IT cooling- Cooling capacity
- 290 – 2,900 kW
- Suction temp. (SST)
- +5 … +35 °C
- Discharge temp. (SDT)
- ≤ +57 °C
- Electrical input
- 60 – 600 kW
MT 350
Data center workhorse- Cooling capacity
- 350 – 3,500 kW
- Suction temp. (SST)
- −7 … +35 °C
- Discharge temp. (SDT)
- ≤ +57 °C
- Electrical input
- 60 – 600 kW
MT 450
Low-temperature duty- Cooling capacity
- 300 – 3,000 kW
- Suction temp. (SST)
- −15 … +35 °C
- Discharge temp. (SDT)
- ≤ +65 °C
- Electrical input
- 150 – 1,500 kW
MT 350 oil-free R290 chiller
The 350 platform is configured for either cooling or heating to suit the project; the operating mode is set by the selected configuration. In chiller configuration it delivers 302.3 kW at EN 14511 conditions from a single 60 kW turbocompressor.
Part-load performance at SST 30 °C / SDT 45 °C
| Power level | Cooling capacity, kW | Power input, kW | COP cooling | Heating capacity, kW |
|---|---|---|---|---|
| 100 % | 428.9 | 46.0 | 9.32 | 474.9 |
| 70 % | 392.8 | 39.9 | 9.84 | 432.7 |
| 50 % | 341.4 | 30.2 | 11.30 | 371.6 |
| 40 % | 282.2 | 24.2 | 11.66 | 306.4 |
| 30 % | 212.8 | 18.1 | 11.76 | 230.9 |
* Calculated cooling COP at SST 30 °C / SDT 45 °C (86 °F / 113 °F), superheat 8 K, subcooling 8 K, no economizer. System performance depends on configuration and operating conditions.
Technical data — MT 350
| Unit type | Chiller / heat pump |
| Rated cooling (W10/W7) | 302.3 kW |
| Rated heating (W10/W35) | 353.3 kW · COP 5.90 |
| Cooling-side flow rate | 25 m³/h |
| Max. hot-water supply | +60 °C |
| Turbocompressor power | 60 kW |
| Nominal current | 120 A |
| Electrical connection | 3PE ~400/440/460/480 V, 50/60 Hz |
| Control circuit | 24 V DC |
| Ride-through of voltage dips | up to 50 ms |
| Refrigerant / charge | R290 · 8.8 kg |
| Max. allowable pressure (PS) | 28 bar |
| Hydraulic connections | DN 65, stainless steel |
| Dimensions H × W × L | 1,700 × 2,000 × 1,600 mm |
| Weight (empty) | 1,216 kg |
Controls & connectivity
| Controller | Industrial PLC, web interface |
| Field protocols | Modbus TCP, EtherNet/IP, EtherCAT, CANopen |
| IoT / IT | MQTT, web server, SQL client, FTP, SNMP, e-mail alerts |
| HMI | 18.5″ Full HD capacitive touchscreen, IP66 front |
CE marked: Machinery 2006/42/EC, LVD 2014/35/EU, EMC 2014/30/EU, PED 2014/68/EU Category II (Module A2, notified body 1299).
Turn the data hall’s waste heat into a revenue stream.
The platform is also built as an industrial heat pump line (350 kW – 4.1 MW). Configured for heating, the same oil-free R290 technology can lift low-grade heat — such as data center return water — for district heating or process use.
MT 350 rated heating at W10/W35: 353.3 kW from 60.2 kW electrical input; boost mode up to 410 kW.
Maximum hot-water supply temperature.
Designed and manufactured in the EU, supported through commissioning.
Units are engineered and built in Europe, CE marked and factory tested. We size the configuration, supply the equipment and support the project through commissioning — for data centers, industrial process cooling and district energy.
Tell us the IT load, we’ll size the chiller plant.
Send the required cooling capacity, chilled-water temperatures and site location — we’ll come back with a configuration and budget indication.