Air-Cooled Scroll Process Chillers in North America
Air-cooled scroll process chillers in North America, by far, are the most common applications for process duty service. These chillers remove heat from your process and reject that heat to the outdoor air. Air-cooled process chillers tend to be easier and less expensive to service, cost less than water-cooled process chillers, and offer a wide variety of options (such as economizers), providing excellent design flexibility.
Air-cooled chillers can be configured as packaged chiller systems or split-systems (outdoor condenser, indoor chiller).


Standard Features:
[1] denotes optional items on most competing brands.

PZAT4S is shown with optional coil louvers and disconnect.
Available Options:
Click on a chiller model below to download a spec sheet.
Air-Cooled Process Chillers, Packaged, Single Circuit Scroll, Tankless
Model Number | Nominal BTUH @ 45°F | Length (In.) | Width (In.) | Height (In.) | Weight | Compressor | |
---|---|---|---|---|---|---|---|
Qty. | HP | ||||||
PZA1S | 14,200 | 36 | 34 | 44 | 260 | 1 | 1.3 |
PZA1.5S | 21,500 | 36 | 34 | 44 | 265 | 1 | 2.0 |
PZA2S | 24,100 | 36 | 34 | 44 | 265 | 1 | 2.5 |
PZA2.5S | 34,800 | 36 | 34 | 44 | 295 | 1 | 3.5 |
PZA3S | 39,200 | 36 | 34 | 48 | 490 | 1 | 4.0 |
PZA4S | 50,000 | 46 | 34 | 48 | 500 | 1 | 5.0 |
PZA4.5S | 54,000 | 46 | 34 | 48 | 500 | 1 | 5.0 |
PZA5S | 60,000 | 46 | 34 | 48 | 650 | 1 | 6.0 |
PZA7S | 81,000 | 75 | 34 | 50 | 650 | 1 | 8.0 |
PZA8S | 91,000 | 75 | 34 | 50 | 650 | 1 | 9.0 |
PZA9S | 106,000 | 75 | 34 | 50 | 690 | 1 | 10.0 |
PZA11S | 132,000 | 75 | 34 | 50 | 875 | 1 | 12.0 |
Air-Cooled Process Chillers, Packaged, Single Circuit Scroll, with Stainless Steel Tank
Model Number | Nominal BTUH @ 45°F | Length (In.) | Width (In.) | Height (In.) | Weight | Compressors | |
---|---|---|---|---|---|---|---|
Qty. | HP | ||||||
PZAT1S | 14,200 | 36 | 34 | 68 | 550 | 1 | 1.3 |
PZAT1.5S | 18,000 | 36 | 34 | 68 | 600 | 1 | 2.0 |
PZAT2S | 22,000 | 36 | 34 | 68 | 650 | 1 | 2.5 |
PZAT2.5S | 28,800 | 36 | 34 | 68 | 700 | 1 | 3.5 |
PZAT3S | 36,000 | 36 | 34 | 68 | 800 | 1 | 4.0 |
PZAT4S | 49,200 | 46 | 34 | 72 | 850 | 1 | 5.0 |
PZAT4.5S | 51,600 | 46 | 34 | 72 | 875 | 1 | 5.0 |
PZAT5S | 55,200 | 46 | 34 | 72 | 900 | 1 | 6.0 |
PZAT7S | 75,600 | 75 | 34 | 72 | 1100 | 1 | 8.0 |
PZAT7.5S | 84,000 | 75 | 34 | 72 | 1150 | 1 | 9.0 |
PZAT9S | 98,400 | 75 | 34 | 72 | 1250 | 1 | 10.0 |
PZAT11S | 122,400 | 75 | 34 | 72 | 1300 | 1 | 12.0 |
Air-Cooled Process Chillers, Packaged, Dual Circuit Scroll, Tankless
Model Number | Nominal BTUH @ 45°F | Length (In.) | Width (In.) | Height (In.) | Weight | Compressor | |
---|---|---|---|---|---|---|---|
Qty. | HP | ||||||
PZA7D | 81,100 | 75 | 34 | 48 | 875 | 2 | 4.0 |
PZA9D | 106,400 | 75 | 34 | 48 | 900 | 2 | 5.0 |
PZA9.5D | 111,800 | 75 | 34 | 48 | 950 | 2 | 5.0 |
PZA10D | 118,000 | 75 | 34 | 48 | 950 | 2 | 6.0 |
PZA13D | 160,000 | 85 | 40 | 48 | 985 | 2 | 8.0 |
PZA15D | 183,500 | 85 | 40 | 48 | 1000 | 2 | 9.0 |
PZA18D | 209,200 | 85 | 40 | 48 | 1100 | 2 | 10.0 |
PZA22D | 264,200 | 180 | 46 | 54 | 1150 | 2 | 12.0 |
PZA26D | 302,000 | 180 | 46 | 54 | 2600 | 2 | 15.0 |
PZA35D | 406,000 | 180 | 88 | 54 | 2900 | 2 | 20.0 |
PZA43D | 500,000 | 180 | 88 | 54 | 3200 | 2 | 25.0 |
PZA52D | 612,000 | 180 | 88 | 54 | 4000 | 2 | 30.0 |
Air-Cooled Process Chillers, Packaged, Dual Circuit Scroll, with Stainless Steel Tank
Model Number | Nominal BTUH @ 45°F | Length (In.) | Width (In.) | Height (In.) | Weight | Compressor | |
---|---|---|---|---|---|---|---|
Qty. | HP | ||||||
PZAT7D | 73,200 | 75 | 34 | 77 | 1100 | 2 | 4.0 |
PZAT9D | 96,000 | 75 | 34 | 77 | 1200 | 2 | 5.0 |
PZAT9.5D | 102,000 | 75 | 34 | 77 | 1250 | 2 | 5.0 |
PZAT10D | 108,000 | 75 | 34 | 77 | 1250 | 2 | 6.0 |
PZAT13D | 147,000 | 85 | 40 | 77 | 1300 | 2 | 8.0 |
PZAT15D | 167,000 | 85 | 40 | 77 | 1400 | 2 | 9.0 |
PZAT18D | 190,800 | 85 | 40 | 77 | 1450 | 2 | 10.0 |
PZAT22D | 246,000 | 75 | 66 | 76 | 2200 | 2 | 13.0 |
Air-Cooled Process Chillers, Packaged, Quad Scroll Compressors, Tankless
Model Number | Nominal BTUH @ 45°F | Length (In.) | Width (In.) | Height (In.) | Weight | Compressor | |
---|---|---|---|---|---|---|---|
Qty. | HP | ||||||
PZA15M | 181,200 | 176.5 | 45.5 | 55 | 3300 | 4 | 4.0 |
PZA18M | 201,600 | 176.5 | 45.5 | 55 | 3400 | 4 | 5.0 |
PZA22M | 270,000 | 176.5 | 45.5 | 55 | 3490 | 4 | 6.0 |
PZA28M | 338,400 | 176.5 | 45.5 | 55 | 3550 | 4 | 8.0 |
PZA38M | 459,600 | 176.5 | 88 | 55 | 4800 | 4 | 10.0 |
PZA44M | 510,000 | 176.5 | 88 | 55 | 5100 | 4 | 13.0 |
PZA56M | 678,000 | 176.5 | 88 | 55 | 5100 | 4 | 15.0 |
PZA75M | 900,000 | 230 | 88 | 57 | 6700 | 4 | 20.0 |
PZA91M | 1,092,000 | 230 | 88 | 57 | 7100 | 4 | 25.0 |
Air-Cooled Process Chillers, Split-System, Single Circuit Scroll, Tankless
Model Number | Nominal BTUH @ 45°F | Length (In.) | Width (In.) | Height (In.) | Weight | Compressor | |
---|---|---|---|---|---|---|---|
Qty. | HP | ||||||
IEZA1S | 14,200 | 44 | 28 | 36 | 225 | 1 | 1.3 |
IEZA1.5S | 21,500 | 44 | 28 | 36 | 225 | 1 | 2.0 |
IEZA2S | 24,100 | 44 | 28 | 36 | 270 | 1 | 2.5 |
IEZA2.5S | 34,800 | 44 | 28 | 36 | 500 | 1 | 3.5 |
IEZA3S | 39,200 | 44 | 28 | 36 | 500 | 1 | 4.0 |
IEZA3.5S | 50,000 | 44 | 28 | 36 | 575 | 1 | 5.0 |
IEZA4.5S | 54,000 | 44 | 28 | 36 | 600 | 1 | 5.0 |
IEZA5S | 60,000 | 44 | 28 | 36 | 600 | 1 | 6.0 |
IEZA7S | 81,000 | 44 | 28 | 36 | 700 | 1 | 8.0 |
IEZA8S | 91,000 | 44 | 28 | 36 | 725 | 1 | 9.0 |
IEZA9S | 106,000 | 44 | 28 | 36 | 750 | 1 | 10.0 |
IEZA11S | 132,000 | 44 | 28 | 36 | 850 | 1 | 12.0 |
Air-Cooled Process Chillers, Split-System, Single Circuit Scroll, with Stainless Steel Tank
Model Number | Nominal BTUH @ 45°F | Length (In.) | Width (In.) | Height (In.) | Weight | Compressor | |
---|---|---|---|---|---|---|---|
Qty. | HP | ||||||
IEZAT1S | 14,200 | 36 | 34 | 65 | 550 | 1 | 1.3 |
IEZAT1.5S | 18,000 | 36 | 34 | 65 | 600 | 1 | 2.0 |
IEZAT2S | 22,000 | 36 | 34 | 65 | 650 | 1 | 2.5 |
IEZAT2.5S | 28,800 | 36 | 34 | 65 | 700 | 1 | 3.5 |
IEZAT3S | 36,000 | 36 | 34 | 65 | 800 | 1 | 4.0 |
IEZAT4S | 49,200 | 46 | 34 | 69 | 850 | 1 | 5.0 |
IEZAT4.5S | 51,600 | 46 | 34 | 69 | 875 | 1 | 5.0 |
IEZAT5S | 55,200 | 46 | 34 | 69 | 900 | 1 | 6.0 |
IEZAT7S | 75,600 | 75 | 34 | 69 | 1100 | 1 | 8.0 |
IEZAT8S | 84,000 | 75 | 34 | 70 | 1150 | 1 | 9.0 |
IEZAT9S | 98,400 | 75 | 34 | 70 | 1250 | 1 | 10.0 |
IEZAT11S | 122,400 | 75 | 34 | 70 | 1300 | 1 | 12.0 |
Air-Cooled Process Chillers, Split-System, Dual Circuit Scroll, Tankless
Model Number | Nominal BTUH @ 45°F | Length (In.) | Width (In.) | Height (In.) | Weight | Compressor | |
---|---|---|---|---|---|---|---|
Qty. | HP | ||||||
IEZA7D | 81,100 | 65 | 30 | 37 | 900 | 2 | 4.0 |
IEZA9D | 106,400 | 65 | 30 | 37 | 1000 | 2 | 5.0 |
IEZA9.5D | 111,800 | 65 | 30 | 37 | 1100 | 2 | 5.0 |
IEZA10D | 118,000 | 65 | 30 | 37 | 1200 | 2 | 6.0 |
IEZA13D | 160,000 | 65 | 30 | 37 | 1400 | 2 | 8.0 |
IEZA15D | 183,500 | 65 | 30 | 37 | 1450 | 2 | 9.0 |
IEZA18D | 209,200 | 65 | 30 | 37 | 1500 | 2 | 10.0 |
IEZA22D | 264,200 | 85 | 34 | 42 | 1600 | 2 | 12.0 |
IEZA26D | 302,000 | 85 | 34 | 42 | 1700 | 2 | 15.0 |
IEZA35D | 406,000 | 85 | 34 | 42 | 1700 | 2 | 18.0 |
IEZA43D | 500,000 | 85 | 34 | 42 | 1700 | 2 | 25.0 |
IEZA52D | 612,000 | 85 | 34 | 42 | 1700 | 2 | 30.0 |
Air-Cooled Process Chillers, Split-System, Dual Circuit Scroll, with Stainless Steel Tank
Model Number | Nominal BTUH @ 45°F | Length (In.) | Width (In.) | Height (In.) | Weight | Compressor | |
---|---|---|---|---|---|---|---|
Qty. | HP | ||||||
IEZAT7D | 73,200 | 75 | 34 | 70 | 1350 | 2 | 4.0 |
IEZAT9D | 96,000 | 75 | 34 | 70 | 1400 | 2 | 5.0 |
IEZAT9.5D | 102,000 | 75 | 34 | 70 | 1450 | 2 | 5.0 |
IEZAT10D | 108,000 | 75 | 34 | 70 | 1500 | 2 | 6.0 |
IEZAT13D | 147,000 | 75 | 34 | 70 | 1700 | 2 | 8.0 |
IEZAT15D | 167,000 | 75 | 34 | 70 | 1800 | 2 | 9.0 |
IEZAT18D | 190,800 | 85 | 34 | 70 | 1900 | 2 | 10.0 |
IEZAT22D | 238,800 | 85 | 34 | 70 | 2100 | 2 | 12.0 |
Note: Air-Cooled Process Chiller Capacities based on
ARI Standard 45ºF LWT and 95ºF AMB.
Ask about our process chillers.