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).

Intertek logoAir conditioning and heat pump systems arranged, representing efficient solutions for heating and cooling residential or commercial spaces.

Standard Features:

  • ETL listed
  • Remote condenser coil
  • Microprocessor controller with touch screen HMI
  • Stainless steel brazed plate evaporator with 1/2-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, and 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 equipment displayed, showcasing modern technology for climate control, energy efficiency, and condenser coil cover.

PZAT4S is shown with optional coil louvers and disconnect.

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 programmable 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
  • Storage tank sight glass (Tank models only)
  • Tank low liquid level indicator (Tank models only)

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
PZA1S14,20036344426011.3
PZA1.5S21,50036344426512.0
PZA2S24,10036344426512.5
PZA2.5S34,80036344429513.5
PZA3S39,20036344849014.0
PZA4S50,00046344850015.0
PZA4.5S54,00046344850015.0
PZA5S60,00046344865016.0
PZA7S81,00075345065018.0
PZA8S91,00075345065019.0
PZA9S106,000753450690110.0
PZA11S132,000753450875112.0

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
Single Circuit - Outside Condenser Data Sheets Download

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
Single Circuit - Outside Condenser Data Sheets Download

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
IEZA7D81,10065303790024.0
IEZA9D106,400653037100025.0
IEZA9.5D111,800653037110025.0
IEZA10D118,000653037120026.0
IEZA13D160,000653037140028.0
IEZA15D183,500653037145029.0
IEZA18D209,2006530371500210.0
IEZA22D264,2008534421600212.0
IEZA26D302,0008534421700215.0
IEZA35D406,0008534421700218.0
IEZA43D500,0008534421700225.0
IEZA52D612,0008534421700230.0
Dual Circuit - Outside Condenser Data Sheets Download

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
IEZAT7D73,200753470135024.0
IEZAT9D96,000753470140025.0
IEZAT9.5D102,000753470145025.0
IEZAT10D108,000753470150026.0
IEZAT13D147,000753470170028.0
IEZAT15D167,000753470180029.0
IEZAT18D190,8008534701900210.0
IEZAT22D238,8008534702100212.0
Dual Circuit - Outside Condenser Data Sheets Download

Note: Air-Cooled Process Chiller Capacities based on
ARI Standard 45ºF LWT and 95ºF AMB.

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