Air-Cooled Semi-Hermetic Process Chillers

Legacy Chillers, Inc.’s (PSA) air-cooled semi-hermetic process chillers are ideal for larger industrial cooling applications. The compressor and motor are combined, making these units powerhouses for high efficiency cooling with precise temperature control. This also allows for easy mainenance and reduced downtime. This air-cooled chiller is available from 15 to 120 HP. Note: All package systems are also available in split condenser configurations.

25 tonnage air cooled chiller with dual compressors. Three fan unit showing process fluid inlet and outlet.

Learn more about the features and specifications of our Air-cooled semi hermetic process chillers!

Standard Features:

ETL listed
Remote condenser coil
Microprocessor controller with touch screen HMI
Stainless steel, brazed plate evaporator with ½-inch insulation and secured in a steel bracket [1]
Scroll compressor with crankcase heater
Suction accumulator [1]
Water flow switch
Hot gas bypass capacity control [1]
24V control transformer
Direct drive condenser fan motor
Rust-resistant, high CFM, aluminum condenser fan blade
Condenser(s): copper tube/aluminum fin
Compressor motor contactor
Condenser motor and control circuit fusing
Painted, galvanized sheet metal cabinet
1/2-inch insulation on all water and refrigerant lines
Liquid line drier, sight glass, solenoid, TEV
Complete refrigerant charge from factory 407C standard [1]
Extended warranty: See your quote or latest IOM booklet revision

[1] denotes optional items on most competing brands.

Air conditioning and heat pump equipment displayed, showcasing modern technology for climate control and energy efficiency.

Brochure Download

Available Options:

4-year extended compressor warranty
Casters (factory mounted)
115-volt (rain-tight) service outlet
Fused disconnect
Non-fused disconnect
Phase monitor
Compressor fusing
Fan cycle control
Flooded condenser with receiver/head pressure control (-20 °F)
Heated, flooded condenser with receiver/head pressure control (-20 °F)
Factory-installed evaporator heat tape freeze protection thermostatically controlled
Water pressure gauge set
Fused, stainless steel system process pump
Pump suction isolation valve
Dual system pump with HMI programable change-over
Low flow bypass valve system pump required
"Gold" finned condenser coil (coastal protection)
"Copper" finned condenser coil (coastal protection)
Heresite-coated condenser coil (coastal protection)
Water flow meter
Auto city water makeup solenoid

Click on a chiller model below to download a spec sheet.

Air-Cooled Process Chillers, Packaged, Dual Circuit Semi-Hermetic, Tankless

Model Number	Nominal BTUH @ 45°F	Length (In.)	Width (In.)	Height (In.)	Weight	Compressor
Model Number	Nominal BTUH @ 45°F	Length (In.)	Width (In.)	Height (In.)	Weight	Qty.	HP
PSA16D	199,200	176.5	45.5	55	3200	2	8.0
PSA19D	237,600	176.5	45.5	55	3500	2	10.0
PSA22D	276,000	176.5	45.5	55	3700	2	12.5
PSA25D	314,000	230	45.5	55	4000	2	15.0
PSA33D	390,000	180	89	55	4700	2	17.0
PSA37D	438,000	180	89	55	4900	2	20.0
PSA45D	566,400	180	88	55	5100	2	25.0
PSA55D	681,600	232	88	57	6000	2	30.0
PSA62D	816,000	232	88	57	6200	2	35.0
PSA71D	883,200	232	88	57	6500	2	40.0
PSA88D	500,000	232	88	57	6700	2	60.0

Air-Cooled Process Chillers, Split-System, Dual Circuit Semi-Hermetic, Tankless

Model Number	Nominal BTUH @ 45°F	Length (In.)	Width (In.)	Height (In.)	Weight	Compressor
Model Number	Nominal BTUH @ 45°F	Length (In.)	Width (In.)	Height (In.)	Weight	Qty.	HP
IESA16D	199,200	85	34	45	1050	2	8.0
IESA19D	237,600	85	34	45	1100	2	10.0
IESA22D	276,000	85	34	62	1200	2	12.5
IESA25D	314,000	85	34	62	1300	2	15.0
IESA33D	390,000	85	34	62	1600	2	17.0
IESA37D	438,000	85	34	62	1700	2	20.0
IESA45D	566,400	110	34	62	1800	2	25.0
IESA55D	681,600	110	34	62	1900	2	30.0
IESA62D	816,000	110	34	62	2200	2	35.0
IESA71D	883,200	120	34	68	2500	2	50.0
IESA88D	1,065,800	120	34	68	2800	2	60.0

Note: Air-cooled process chiller capacities are based on ARI Standard 45ºF LWT and 95ºF AMB.

Ask about our process chillers.

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