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SMC's Low GWP chillers use R454C (GWP 146), R32 (GWP 675), and CO2 (GWP 1) refrigerants — dramatically below new regulatory thresholds — while delivering the same ±0.1°C temperature stability and compact footprint you depend on.
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SMC's Low GWP chillers use R454C (GWP 146), R32 (GWP 675), and CO2 (GWP 1) refrigerants—dramatically below new regulatory thresholds—while delivering the same ±0.1°C temperature stability and compact footprint your process demands. Whether you're running CNC machines, laser systems, or semiconductor fab equipment, these chillers are built for compliance today and tomorrow.
The US EPA AIM Act, California CARB, Canada, and the EU have all enacted regulations restricting high-GWP refrigerants. Compliance deadlines are approaching fast, and the penalties for non-compliance are real. SMC's Low GWP chiller lineup is engineered to meet and exceed these requirements now, so your operations stay uninterrupted when enforcement kicks in.
Built for Compliance: Every chiller in this lineup uses refrigerants that fall well below GWP thresholds set by the EPA AIM Act, CARB, and EU F-Gas regulations. CO2 models (GWP of just 1) represent the lowest possible environmental impact—and they're eligible for air freight.
No Performance Trade-Off: These aren't scaled-back alternatives. SMC Low GWP chillers deliver ±0.1°C temperature stability, PID-controlled set points, and multi-alarm monitoring—the same precision your processes require.
Drop-In Replacement Design: Dimensions, port sizes, and layouts are engineered to match SMC's legacy chiller designs. Upgrading to low-GWP doesn't mean re-engineering your setup.
Broad Capacity Range: From 1.3 kW compact units to 30.5 kW large-capacity systems, the lineup covers general-purpose cooling, laser applications, semiconductor fabrication, and rack-mounted configurations.
Energy-Smart Engineering: Select models feature inverter-driven compressors, pumps, and fans that adjust output to actual demand—reducing energy consumption without sacrificing performance.
HRSF — Medium Capacity (R454C)
Cooling from 1.3 to 5.9 kW. Air or water cooled. Single-phase power. Includes heating function and serial communication. Ideal for machine tools, laser equipment, and general manufacturing.
HRSC — Medium Capacity (CO2)
Same 1.3 to 5.9 kW range with CO2 refrigerant (GWP 1). The lowest-impact option available. Air-freight eligible. CE, UKCA, UL, RoHS certified.
HRSC090 — Large Capacity (CO2)
9.5 kW air cooled or 11 kW water cooled. Three-phase power. Compact footprint with large cooling output and CO2 refrigerant.
HRSC100 — Large Capacity with Triple Inverter (CO2)
10.5 kW air cooled or 11.5 kW water cooled. Triple inverter control for the compressor, pump, and fan delivers substantial energy savings. IPX4 rated for outdoor installation.
HRSF — Large Capacity (R454C)
15.7 and 20.5 kW in air cooled or water cooled configurations. IPX4 rated. Three-phase power. Designed for larger manufacturing and process cooling demands.
HRSHF — Large Capacity Smart Inverter (R32)
15.7 to 30.5 kW cooling capacity. Inverter-driven for demand-based energy savings. IPX4 outdoor-rated with seal-less immersion pump. Global voltage compatibility. Optional DI water support.
HRRF — Rack Mounted Thermo Chiller (R454C)
Fits standard 19-inch racks. 1.2 or 1.8 kW capacity. Air or water cooled. RS-232C/RS-485 serial communication. Perfect for labs, test equipment, and space-constrained installations.
HRZF010 — SEMI Standard Double Inverter (R454C)
10 kW water-cooled chiller for high-technology applications. Compatible with fluorinated coolants and glycol. SEMI S2, S8, and F47 certified. DC inverters on compressor and pump for energy savings.
HRZC — SEMI Standard Double Inverter (CO2)
2 to 10 kW capacity with CO2 refrigerant. Temperature range from -10 to 90°C. Stability as tight as ±0.02°C under stable heat loads. Non-toxic, non-flammable, air-freight eligible. SEMI S2, S8, F47 certified.
HRLF — Dual Channel Chiller for Lasers (R454C)
Two independent cooling channels in one package—one for the oscillator (19–21.5 kW), one for the optical head (1 kW). Available in air or water cooled configurations. Copper-free construction for DI water compatibility. Ethernet Modbus and serial communication included.
| Specification | Details |
|---|---|
| Temperature Stability | ±0.1°C (±0.02°C on select SEMI models) |
| Temperature Set Range | As wide as -20 to 90°C (model dependent) |
| Refrigerants | R454C (GWP 146), CO2 (GWP 1), R32 (GWP 675) |
| Cooling Methods | Air cooled and water cooled options |
| Circulating Fluids | Tap water, deionized water, ethylene glycol solutions, fluorinated fluids |
| Communication | Serial RS-232C/RS-485, Ethernet Modbus, contact/analog I/O |
| Standards | UL (C-ETL-US), CE, UKCA, RoHS; SEMI S2/S8/F47 on select models |
SMC Low GWP chillers serve a wide range of industries and processes, including machine tool and CNC cooling, laser processing systems (cutting, welding, marking), semiconductor and electronics manufacturing, laboratory and test equipment, medical device production, and general industrial process cooling.
Refrigerant regulations are tightening across North America and Europe. SMC's Low GWP chillers let you upgrade on your timeline—not a regulator's—with models designed to drop into your existing setup. Contact our team for help selecting the right chiller for your application, or use the SMC Thermo-Chiller Model Selection Software to configure your unit online.