Low GWP Chillers
In the early 2000s, the term "Low GWP (global warming potential)" became an industry shorthand for ozone-friendly, new refrigerants such as R454C. As European countries moved away from ozone depleting substances, refrigerant regulations were tightened to eliminate HFCs and reduce manufacturers' carbon footprints and environmental impact. Regulation effective dates vary, but in response to them SMC is introducing low GWP chillers with lower GWP refrigerants, either R454C (GWP 146) or CO₂ (GWP 1) which are dramatically below the new thresholds.
HRSF, Medium Capacity, General Purpose Chiller
HRSF medium capacity chillers are professional-grade industrial machines that can be easily integrated into an existing room without large electrical or plumbing upgrades. They deftly balance precision cooling with using minimal floor space, perfectly meeting the needs of small to medium machine shops, pharmaceutical labs, distillers, and print shops.
- Cooling capacities, kW: 1.3, 1.9, 2.4, 3,2, 4.7 or 5.9 (60Hz)
- Temperature range setting: 5~40°C
- Temperature stability: ±0.1°C
- Power supply requirement: single-phase 200~230 VAC (50/60Hz)
- Refrigerant: R454C (GWP 146) (Not available for air transport)
- Circulating fluid: Tap or de-ionized water, or 15% glycol aqueous solution
HRRF, Rack Mounted Thermo Chiller, Low GWP Refrigerant
The HRRF rack mounted thermo chiller is a highly specialized cooling unit mountable on a standard 19-inch electronic equipment rack. It’s designed for businesses who want to avoid carbon taxation (Low GWP) and have significant space constraints. It can be integrated into rack based frames or stored in a cabinet, saving valuable floor space.
- Refrigerant: R454C (GWP 146) (Not available for air transport)
- Fluid fill, drain port, and filter access on the front
- RS-232C / RS-485 Communication functions
- Cooling/Heating capacities (W): 1200/500, 1800/500
- Temperature stability: ±0.1°C
- Power supply requirement: 200~230 VAC, 50/60Hz
- Circulating Fluid: water or 15% ethylene glycol
- Standards: UL (C-ETL-US), CE, UKCA, RoHS
HRSC General Purpose Chiller, 1.3~5.9 kW, CO2 Refrigerant
HRSC CO₂ chillers represent a significant shift in industrial cooling for companies that want to move away from traditional high GWP refrigerants entirely in order to future-proof their facility from changing refrigerant regulations and rising chemical costs. These coolers meet the needs of large multinational companies with green initiatives that go beyond what the law requires and the European and California tech sector.
- Cooling capacities, kW: 1.3, 1.9, 2.4, 3,2, or 5.9 (60Hz)
- Temperature range setting: 5~40°C
- Temperature stability: ±0.1°C
- Power supply requirement: single-phase 200~230 VAC (50/60Hz)
- Refrigerant: CO2 (GWP 1)
- Circulating fluid: Tap water, DI water, or 15% glycol aqueous solution
- Standards: CE, UKCA, UL, RoHS
HRSC090, General Purpose Chiller, 9.5 / 11 kW, CO2 Refrigerant
The HRSC090 is a compact chiller with a large cooling capacity. As a specialized green industrial chiller, it enables zero emissions facilities to meet their aggressive ESG goals. The HRSC090 is inherently compliant because CO₂ is the baseline against which all other global warming gases are measured.
- Cooling capacities: 9.5kw (air cooled), 11kW (water cooled)
- Temperature range setting: 5~40°C
- Temperature stability: ±0.1°C
- Power supply: 3-phase 380Y/220 to 480Y/277 VAC (60Hz)
- Refrigerant: CO2 (GWP 1)
- Circulating fluid: Tap or deionized water, or 15% glycol aqueous solution
- Standards: CE, UKCA, UL, RoHS
HRSC100, Large Capacity Chiller, 10.5 / 11.5 kW, CO2 Refrigerant
The HRSC100 is a high-performance, environmentally friendly industrial chiller. With a cooling capacity of 10.5 kW (air-cooled) or 11.5 kW (water-cooled), it is designed for users who are moving away from traditional high GWP refrigerants but still need a large capacity solution. It is attractive to high-tech facilities in regulatory hot zones who are pre-complying with 2030-era environmental laws.
- Cooling capacities: 10.5kw (air cooled), 11.5kW (water cooled)
- Temperature range setting: 5~35°C
- Temperature stability: ±0.1°C
- Power supply: 3-phase 380Y/220 to 480Y/277 VAC (60Hz)
- Refrigerant: CO2 (GWP 1)
- Circulating fluid: Tap or deionized water, or 15% glycol aqueous solution
- Standards: CE, UKCA, UL, RoHS
HRSHF, Large Capacity, High Efficiency Smart Inverter Chiller, R32 Refrigerant
The HRSHF is a high-capacity, smart inverter chiller designed for industrial applications requiring precise temperature control and energy efficiency. It uses R32 refrigerant which has a lower global warming potential than traditional options. By employing triple inverter technology for the compressor, fan, and pump, the unit reduces power consumption by adjusting performance based on demand. This chiller's compact, IPX4-rated design allows for both indoor and outdoor installation with flexible power supply options.
- Cooling capacity (kW): 15.7, 20.5, 25, 30.5
- Power supply (3-phase VAC): 200 (50Hz) / 200~230 (60Hz); 380Y/220~415Y/240 (50Hz) or 380Y/220~480Y/277 (60Hz)
- Temperature range setting: 5 to 35° C
- Temperature stability: ±0.1° C
- Refrigerant: R32 (GWP = 675) (not eligible for air freight)
HRSF, Large Capacity, Air Cooled, General Purpose Chiller
HRSF air-cooled chillers are a ready-to-use solution that doesn't rely on the facility’s plumbing. It is ideal for a well-ventilated small-to-medium-sized shop. The refrigeration circuit is air cooled by a single large fan, with a low sound level of 68 dB(A). The chiller is easy to install and maintain and can be used both indoors and outdoors.
- Cooling capacities: 15.7 kW, 20.5 kW (60Hz)
- Temperature range setting: 5~35°C
- Temperature stability: ±0.1°C
- Power supply requirement: 3ph 380~415 VAC (50Hz), 3ph 380~480 VAC (60Hz)
- Waterproof specification: IPX4
- Refrigerant: R454C (GWP 146)
- Circulating fluid: Tap or deionized water, or 15~40% ethylene glycol solution
HRSF, Large Capacity, Water Cooled, General Purpose Chiller
HRSF water-cooled chillers provide maximum efficiency and silence for facilities with a central cooling tower or facility water connection. Water-cooled chillers are commonly used in cleanrooms and labs with sensitive temperature requirements. The refrigeration circuit is water cooled with a low sound level of 60 dB(A). The heat from the chilling process is exhausted entirely outside the building.
- Cooling capacities: 15.7 kW, 20.6 kW (60Hz)
- Temperature range setting: 5~35°C
- Temperature stability: ±0.1°C
- Power supply requirement: 3ph 380~415 VAC (50Hz), 3ph 380~480 VAC (60Hz)
- Waterproof specification: IPX4
- Refrigerant: R454C (GWP 146)
- Circulating fluid: Tap or deionized water, or 15% ethylene glycol solution
HRZF010, SEMI Standard Double Inverter Chiller, R454C Refrigerant
The HRZF010 is a high-performance, water-cooled refrigerated thermo-chiller designed for the most demanding technical environments on the planet, including semiconductor fabrication facilities which are strictly controlled environments. Its double inverter allows the chiller to maintain +/- 0.1°C stability and speeds up or slows down the motors to match the exact cooling load, potentially reducing energy consumption by up to 65%.
- Cooling capacity: 10kW
- Circulating Fluid: Fluorinert™ or GALDEN® (fluorinated); 60% ethylene glycol
- Temperature range setting: -20 to 90°C (see catalog for conditions)
- Temperature stability: ±0.1°C
- Power supply requirement: 3-phase 200 VAC (50Hz) or 3-phase 200~208 VAC (60Hz)
- Standards: CE, UKCA, UL, RoHS, SEMI S2, S8, F47
HRZC, SEMI Standard Double Inverter Chiller, CO2 Refrigerant
The HRZC is a water-cooled recirculating chiller for high technology sectors which employs CO₂ as a new refrigerant. It is a pinnacle of green semiconductor technology and balances extreme precision with strict environmental mandates. The HRZC is a high-precision chiller paired with a Double Inverter system for the compressor and pump.
- Cooling capacity kW: 2, 4, 8, 10
- Circulating Fluid: Fluorinert™ or GALDEN® (fluorinated); 60% ethylene glycol; water
- Temperature range setting: -10 to 90°C or 10 to 60°C (see catalog for conditions)
- Temperature stability: ±0.1°C (fluctuating heat load); ±0.02°C (stable heat load)
- Power supply requirement: 3-phase 200 VAC (50Hz) or 3-phase 200~208 VAC (60Hz)
- Standards: CE, UKCA, UL, RoHS, SEMI S2, S8, F47
HRLF, Air Cooled Dual Channel Chiller for Lasers, Low GWP Refrigerant
The HRLF air-cooled dual channel chiller is a highly specialized piece of equipment designed to cool fiber lasers. It is specifically engineered for the architecture of a fiber laser and solves three problems:
- space constraints
- complex thermal demands
- strict environmental regulations
The HRLF reduces costs and takes up 30% less floor space than a similarly sized two-chiller setup.
- Cooling capacity, kW: CH1(oscillator) = 19 (200), 26 (300), 37 (400); CH2 (optical system) = 1
- Power Supply: 380-415VAC (50/60 Hz) or 460-480VAC (60 Hz), 3-phase
- Temperature set range: CH1 = 5 to 35°C, CH2 = 10 to 40°C
- Temperature stability: CH1 = ±0.1°C, CH2 = ±0.5°C
- Refrigerants: 200 - R454C (GWP = 146); 300, 400 - R32 (GWP = 675)
- Communication: IO-Link (300, 400); contact/analog I/O; Serial RS-232C/RS-485; Ethernet Modbus
HRLF, Water Cooled Dual Channel Chiller for Lasers, Low GWP Refrigerant
The HRLF water-cooled dual channel chiller is a premium, high-efficiency cooling solution built as an outstanding solution for high-power fiber laser systems. Ultra-high-power lasers generate immense heat. An air-cooled chiller of this size would typically exhaust enough hot air to overwhelm a building's HVAC system. However, because this HRLF is fanless, it is whisper-quiet and vibration-free, ensuring it won't interfere with sensitive laser alignment or contaminate the air.
- Cooling capacity: CH1= 21.5kW (oscillator); CH2= 1kW (optical system)
- Power Supply: 380-415VAC (50/60 Hz) or 460-480VAC (60 Hz), 3-phase
- Temperature set range: CH1 = 5 to 35°C, CH2 = 10 to 40°C
- Temperature stability: CH1 = ±0.1°C, CH2 = ±0.5°C
- Refrigerant: R454C (meets EPA and CARB GWP 2026 requirements)
- Communication: contact/analog I/O; Serial RS-232C/RS-485; Ethernet Modbus
Learn more about how SMC rack mounted low GWP chillers offer high-precision temperature control in a compact, refrigerant-free design. The greenhouse effect of the HRRF series is significantly reduced compared to older models. These chillers use thermoelectric (Peltier) technology for both cooling and heating. Because they don't have a compressor, they are environmentally friendly and energy efficient.