
Glycol Process Chillers for Brewery, Distillery and Fermentation Applications
Glycol Chillers: What are they, really? We regularly get calls asking, “What’s the difference between a glycol chiller and a regular chiller?” Well, the answer to this question is easy and complicated at the same time.
Setting a glycol chiller next to a standard chiller (made by the same manufacturer), most people would say they look like the same chiller and this would be correct. They both remove heat from fluid however a glycol chiller is specially designed to reduce the process fluid to below freezing in most cases. To do this, the process cooling medium (generally water) must be mixed with either Propylene or Ethylene glycol. Depending on glycol concentration, the process fluid with glycol and be reduced from 32°F down to -30°F.
To make your selection of the correct glycol process chiller easier, Legacy has developed OEM designs for many of the most common process chillers used for Brewery’s, Distillery’s and other Fermentation production. If you don’t see Glycol chiller for your specific requirement below, not to worry, we have dedicated process chiller application engineers available to assist you. Just give us a call at 877-988-5464.
Why Choose a Legacy Process Chiller for your Brewery, Distillery or Fermentation Application?
Glycol Process Chiller Statement of Value: Each of our fluid cooling systems are specifically designed to meet the 24/7/365 demands of any fermentation process. During production each, built to order, chiller undergoes rigorous quality control with extensive QC during and after final load testing.

Standard Features
Partial List for Glycol Cooling Applications
• Conforms to UL 60335-2-40:2022 Ed.4
• UL60335-1:2016 Ed.6
• CSA C22.2 # 60335-1:2016 Ed.2
• CSA C22.2 # 60335-2-40:2022 Ed.4
• Single point power connection
• Pentra Microsmart, Programmable Logic Controller (PLC) with easy to use HMI touch screen display
• Door Mounted HMI with weather proof cover
• 5 Port Ethernet Switch (Chiller remote network access
control and Modbus capability)
• Remote SMTP services for email alerts
• STAINLESS STEEL Tank
• STAINLESS STEEL Process Pump
• Pump Isolation Valves
• Fused, STAINLESS STEEL evaporator pump
• STAINLESS STEEL, brazed plate evaporator
• Scroll compressor with crankcase heater
• Suction accumulator
• Liquid line drier, sight glass, solenoid
• Electronic expansion valve
• Manual high pressure cutout
• Fluid flow switch
• 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 (Powder Coat), galvanized sheet metal cabinet
• 1/2” insulation on all fluid and Low pressure refrigerant lines
• Complete refrigerant charge from factory
• Factory performance test prior to shipment
Available Factory Options
Partial List for Glycol Applications
• Remote Idec touchscreen control panel
• BacNet Gateway
• Process Pump VFD Controller
• Condenser Fan VFD Controller
• Compressor VFD Controller
• 4 year extended compressor warranty
• Casters (factory mounted)
• 115 volt (rain tight) service outlet
• Non Fused Disconnect
• Phase Monitor, line voltage monitor offering
protection against phase loss/reversal, unbalance
and High/Low voltage
• Compressor fusing
• Compressor Sound Cover
• Flooded cond. w/receiver/head pressure control (0°F)
• Heated, flooded cond. w/receiver/head pressure
control (-20°F)
• Water flow meter
• Low flow bypass
• Dual process pump with auto changeover
• Pump suction isolation valve
• Water pressure gauge set
• Coastal powder coat paint protection
• E-Coat Condenser Coil (coastal protection)
• Storage tank sight glass
Comment about tables below: Process chiller assignments nested into the tables below are based on available information at the time we generated them. As with many industries, technical characteristics are very dynamic, tending to change often. As such ALWAYS check with your Legacy Process Engineer prior to specifying or purchasing your process chiller. The operating conditions used to assign process chillers in the tables below are 95F ambient (Air-Cooled) and 105F condensing (or 75F entering water temp for Water-Cooled) and 45F leaving WATER ONLY temp going to the process. If your conditions vary from these industry standards, please contact Legacy Chillers (877-988-5464) for an updated selection.

| MODEL NO. | DATA SHEET DOWNLOAD | COOLING CAPACITY (BTUH) 28°F GLYCOL | COOLING CAPACITY (BTUH) 33°F GLYCOL | LENGTH (IN.) | WIDTH (IN.) | HEIGHT (IN.) | WEIGHT (LBS) |
|---|---|---|---|---|---|---|---|
| PZATB1S | 10,200 | 11,400 | 36 | 34 | 68 | 750 | |
| PZATB3.5S | 31,000 | 34,600 | 36 | 34 | 68 | 755 | |
| PZATB5S | 45,200 | 50,400 | 46 | 34 | 70 | 1085 | |
| PZATB6S | 53,800 | 60,000 | 46 | 34 | 70 | 1085 | |
| PZATB7S | 70,200 | 78,300 | 75 | 34 | 75 | 1500 | |
| PZATB10S | 93,400 | 104,300 | 75 | 34 | 75 | 1740 | |
| PZATB12S | 115,100 | 128,400 | 75 | 34 | 75 | 1840 | |
| PZATB10D | 90,400 | 100,800 | 75 | 34 | 75 | 1805 | |
| PZATB12D | 107,600 | 120,000 | 75 | 34 | 75 | 1905 | |
| PZATB15D | 140,400 | 156,600 | 85 | 40 | 75 | 2700 | |
| PZATB21D | 186,800 | 208,600 | 85 | 40 | 75 | 2770 | |
| PZATB25D | 230,200 | 256,800 | 75 | 66 | 76 | 3210 |
| MODEL NO. | DATA SHEET DOWNLOAD | COOLING CAPACITY (BTUH) 28°F GLYCOL | COOLING CAPACITY (BTUH) 33°F GLYCOL | LENGTH (IN.) | WIDTH (IN.) | HEIGHT (IN.) | WEIGHT (LBS) |
|---|---|---|---|---|---|---|---|
| PZATB1S | 8,700 | 9,800 | 36 | 34 | 68 | 750 | |
| PZATB3S | 26,800 | 29,900 | 36 | 34 | 68 | 755 | |
| PZATB4.5S | 39,100 | 43,700 | 46 | 34 | 70 | 1085 | |
| PZATB5.5S | 46,500 | 51,900 | 46 | 34 | 70 | 1085 | |
| PZATB6.5S | 58,800 | 65,600 | 75 | 34 | 75 | 1500 | |
| PZATB9S | 80,600 | 90,100 | 75 | 34 | 75 | 1740 | |
| PZATB11S | 99,400 | 111,100 | 75 | 34 | 75 | 1840 | |
| PZATB9D | 78,200 | 87,400 | 75 | 34 | 75 | 1805 | |
| PZATB11D | 93,000 | 103,800 | 75 | 34 | 75 | 1905 | |
| PZATB13D | 117,600 | 131,200 | 85 | 40 | 75 | 2700 | |
| PZATB18D | 161,200 | 180,200 | 85 | 40 | 75 | 2770 | |
| PZATB22D | 199,400 | 222,200 | 75 | 66 | 76 | 3210 |
| MODEL NO. | DATA SHEET DOWNLOAD | COOLING CAPACITY (BTUH) 28°F GLYCOL | COOLING CAPACITY (BTUH) 33°F GLYCOL | LENGTH (IN.) | WIDTH (IN.) | HEIGHT (IN.) | WEIGHT (LBS) |
|---|---|---|---|---|---|---|---|
| IEZATB1S | 10,200 | 11,400 | 36 | 34 | 68 | 750 | |
| IEZATB3.5S | 31,000 | 34,600 | 36 | 34 | 68 | 755 | |
| IEZATB5S | 45,200 | 50,400 | 46 | 34 | 70 | 1085 | |
| IEZATB6S | 53,800 | 60,000 | 46 | 34 | 70 | 1085 | |
| IEZATB7S | 70,200 | 78,300 | 75 | 34 | 75 | 1500 | |
| IEZATB10S | 93,400 | 104,300 | 75 | 34 | 75 | 1740 | |
| IEZATB12S | 115,100 | 128,400 | 75 | 34 | 75 | 1840 | |
| IEZATB10D | 90,400 | 100,800 | 75 | 34 | 75 | 1805 | |
| IEZATB12D | 107,600 | 120,000 | 75 | 34 | 75 | 1905 | |
| IEZATB15D | 140,400 | 156,600 | 85 | 40 | 75 | 2700 | |
| IEZATB21D | 186,800 | 208,600 | 85 | 40 | 75 | 2770 | |
| IEZATB25D | 230,200 | 256,800 | 75 | 66 | 76 | 3210 |
| MODEL NO. | DATA SHEET DOWNLOAD | COOLING CAPACITY (BTUH) 28°F GLYCOL | COOLING CAPACITY (BTUH) 33°F GLYCOL | LENGTH (IN.) | WIDTH (IN.) | HEIGHT (IN.) | WEIGHT (LBS) |
|---|---|---|---|---|---|---|---|
| IEZATB1S | 8,700 | 9,800 | 36 | 34 | 68 | 750 | |
| IEZATB3S | 26,800 | 29,900 | 36 | 34 | 68 | 755 | |
| IEZATB4.5S | 39,100 | 43,700 | 46 | 34 | 70 | 1085 | |
| IEZATB5.5S | 46,500 | 51,900 | 46 | 34 | 70 | 1085 | |
| IEZATB6.5S | 58,800 | 65,600 | 75 | 34 | 75 | 1500 | |
| IEZATB9S | 80,600 | 90,100 | 75 | 34 | 75 | 1740 | |
| IEZATB11S | 99,400 | 111,100 | 75 | 34 | 75 | 1840 | |
| IEZATB9D | 78,200 | 87,400 | 75 | 34 | 75 | 1805 | |
| IEZATB11D | 93,000 | 103,800 | 75 | 34 | 75 | 1905 | |
| IEZATB13D | 117,600 | 131,200 | 85 | 40 | 75 | 2700 | |
| IEZATB18D | 161,200 | 180,200 | 85 | 40 | 75 | 2770 | |
| IEZATB22D | 199,400 | 222,200 | 75 | 66 | 76 | 3210 |