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ULT Series

Name: Ultra Low Temp ULT Series
Brand: AG Chill

Cascade refrigeration systems for ultra-low temperature pharmaceutical processes, cold storage support, and reaction chemistry where ultracold fluid is critical. Down to -112°F (-80°C). Stainless steel reservoir, Copeland Scroll and Discus compressors, R-448A/R-508B cascade. Made in USA.

-112°F Min Temp / -80°C

Copeland Cascade R-448A / R-508B Stainless Reservoir Made in USA

Compact ULT — Copeland Scroll Cascade

AG0500-ULT through AG2000-ULT

1/2 to 2 ton. Copeland Scroll cascade, R-448A/R-508B. Compact footprint.

Model	-94°F / -70°C	-65°F / -54°C	-40°F / -40°C	Pump	Connections	Tank	Dimensions (D x W x H)	Weight	Voltage	FLA / MCA
AG0500-ULT	1,900 BTU/hr	3,900 BTU/hr	4,800 BTU/hr	0.75kW Vortex — 8.9 GPM max	1/2" NPT	5 Gal SS	30.94" x 35.94" x 77.57"	1,100 lbs	208-240V/3P or 480V/3P	16A / 20A
AG1000-ULT	4,400 BTU/hr	8,300 BTU/hr	10,000 BTU/hr	0.75kW Vortex — 8.9 GPM max	1/2" NPT	5 Gal SS	36.25" x 52.88" x 65.13"	1,150 lbs	208-240V/3P or 480V/3P	25A / 30A
AG2000-ULT	12,700 BTU/hr	22,300 BTU/hr	27,800 BTU/hr	2.2kW Vortex — 14 GPM max	3/4" NPT	10 Gal SS	70.38" x 35.88" x 75.38"	1,350 lbs	480V/3P (std) or 208-240V/3P	20A / 30A (480V)

Compressor: Copeland Scroll cascade. AG0500-ULT also available in 208-240V/1P.

Industrial ULT — Copeland Discus Cascade

AG5000-ULT through AG20000-ULT

5 to 20 ton. Copeland Discus cascade, R-508B. High-flow centrifugal pumps. External condensing unit (ECU) included on every model.

Model	-94°F / -70°C	-55°F / -48°C	-40°F / -40°C	Pump	Connections	Tank	Dimensions (D x W x H)	Weight	Voltage	FLA / MCA
AG5000-ULT	36,200 BTU/hr	47,100 BTU/hr	65,800 BTU/hr	5HP Centrifugal — 90 GPM max	1-1/2" NPT	24 Gal SS	38.90" x 84.35" x 74.75"	1,965 lbs	480V/3P	26.7A / 31.4A
AG10000-ULT	72,400 BTU/hr	121,900 BTU/hr	131,700 BTU/hr	10HP Centrifugal — 180 GPM max	1-1/2" NPT	50 Gal SS	38.90" x 84.35" x 74.75"	3,930 lbs	480V/3P	53.4A / 62.8A
AG15000-ULT	108,600 BTU/hr	182,900 BTU/hr	197,500 BTU/hr	15HP Centrifugal — 270 GPM max	2" NPT	80 Gal SS	38.90" x 84.35" x 74.75"	5,895 lbs	480V/3P	80.1A / 94.2A
AG20000-ULT	144,800 BTU/hr	243,900 BTU/hr	263,300 BTU/hr	20HP Centrifugal — 360 GPM max	2" NPT	120 Gal SS	38.90" x 84.35" x 74.75"	7,860 lbs	480V/3P	106.8A / 125.6A

Compressor: Copeland Discus cascade, R-508B. Every ULT model (AG5000–AG20000) ships with its matching external condensing unit (ECU) included. ECU dimensions: 48.25" x 68.31" x 36.38".

External Condensing Units

AG-ECU Models

Every ULT model (AG5000 through AG20000) ships as a matched set with its external condensing unit — the ECU is included, not optional. It lets the condenser sit outdoors or in a remote equipment room.

ECU Model	Compatible Chiller	Dimensions (D x W x H)	Weight	Voltage	FLA / MCA
AG5000-ECU	AG5000-ULT (included)	48.25" x 68.31" x 36.38"	1,080 lbs	480V/3P	27.3A / 34.2A
AG10000-ECU	AG10000-ULT (included)	48.25" x 68.31" x 36.38"	2,160 lbs	480V/3P	54.6A / 68.4A
AG15000-ECU	AG15000-ULT (included)	48.25" x 68.31" x 36.38"	3,240 lbs	480V/3P	81.9A / 102.6A
AG20000-ECU	AG20000-ULT (included)	48.25" x 68.31" x 36.38"	4,320 lbs	480V/3P	109.2A / 136.8A

Common Applications

Where ULT Systems Are Used

Hydrocarbon Extraction

Subcooling butane and propane solvents to -65°F for high-yield, high-clarity botanical extracts. Commonly paired with SLT condensing units.

Pharmaceutical Freeze-Drying

Condenser cooling for lyophilization chambers. ULT chillers maintain shelf temperature and condenser temps required for API stability.

Supercritical CO2 Extraction

CO2 liquefaction and separator cooling below -50°C for supercritical CO2 systems in botanical and hemp extraction.

Cold Trap / Vapor Recovery

Capturing solvent vapors from vacuum systems in extraction, distillation, and laboratory processes before they reach pumps or vents.

Semiconductor / R&D Testing

Thermal cycling, cold plate testing, and environmental chambers requiring stable temperatures below -60°C.

Deep Ethanol Pre-Cooling

Pre-cooling ethanol to -70°C+ for winterization processes that require deeper temperatures than SLT or ELT systems can reach.

FAQ

Common Questions

How cold does the ULT (Ultra Low Temp) series go?

ULT reaches −112°F (−80°C) using cascade refrigeration — ethanol extraction, pharmaceutical, and biomedical processes.

Is a ULT chiller cryogenic?

No. Cryogenic is below about −150°C; ULT is cascade refrigeration for ultra-low process cooling and cold-storage support down to −80°C.