American Chillers and Cooling Tower Systems

Manufacturer of industrial process chillers
for medical, dry cleaning, aerospace,
food processing and more...

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Engineering chillers for the plastics process cooling industry for 30 years! Chillers
for extrusion, injection and blow molding machines. Stand alone or central chillers
for multiple cooling stations.

1.5 to 50 Nominal tons.

  • Single Pass Package (no tank and pump)
  • Closed Loop Recirculating Package (with tank or pump)
  • Split Package (indoor chiller with outdoor condensing unit)

Plastics Chiller Sizing Guide

The best way to size your plastics chiller is by the information provided by the plastics machine manufacturer. For used equipment or when OEM cooling information isn’t available this chart can assist. Always round up or go up one size for adequate cooling capacity.


Capacity Type Cooling Required
30 lbs/HR H.D Polyethylene 1 Ton
35 lbs/HR L.D Polyethylene / Polypropylene 1 Ton
40 lbs/HR Nylon 1 Ton
50 lbs/HR Polystyrene / ABS 1 Ton
65 lbs/HR PVC / Polycarbonate 1 Ton
70 lbs/HR PET 1 Ton


Capacity Type Cooling Required
50 lbs/HR Polyethylene / Polypropylene 1 Ton
75 lbs/HR Polystyrene 1 Ton
80 lbs/HR PVC 1 Ton


Capacity Type Cooling Required
35 lbs/HR Polyolefins 1 Ton


Type Cooling Required
Air compressor (without after cooler) .16 Ton/HP
Air compressor (with after cooler) .2 Ton/HP
Vacuum Pump .1 Ton/HP
Hydraulic Cooling .1 Ton/HP
Hot Runner Mold .1 Ton/HP
Water Pump in Circuit .2 Ton/HP
Feed Throat Below 400 Ton .5 Ton/HP
Feed Throat 400 Ton and Above 1 Ton


Type Cooling Required
Gear Box Cooling 1 Ton/100HP
Feed Throat / 3” Screw or Less 1 Ton
Feed Throat / Above 3” 2 Tons
Barrel or Screw Cooling (per diameter inch) 1 Ton/Inch

Plastics Chiller Sizing Worksheet

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Standard Features

  • Heavy duty welded, tubular steel frame with high gloss powder coat finish and laminated polyethylene cabinet
  • U.L. Listed, and EPA Compliant, eco-friendly R410a refrigeration condensing unit
  • Single refrigeration circuit with Copeland scroll compressor with crankcase heater
  • Air cooled, high ambient, vertical discharge,  condensers for 100°F ambient with fan cycle control
  • Weather proof electrical panel with single point power connection and 24 vac control circuit
  • Remote control panel for indoor installation provides lighted on/off switches and digital thermostat
  • High performance coaxial evaporator with inner copper tubing and protective steel shell. UL and ASME listed coil is insulated against condensation with expanded foam
  • Auto reset low pressure safety; manual reset high pressure safety
  • Externally equalized thermal expansion valve, liquid line filter drier, and sight glass
  • Low water flow compressor interlock safety locks out compressors in low flow condition
  • Non-ferrous water lines with FPT connections insulated with 1/2” closed cell insulation
  • High density, polyethylene reservoir insulated with 1/2” closed cell insulation
  • High head centrifugal process pump rated at 40 psi at 2.5 GPM/ton
  • Systems leak checked, pressure tested, run tested under load and shipped operation ready
  • Warranty: one (1) year limited parts, five (5) years limited compressor warranty

Systems leak checked, pressure tested, run tested under load and shipped operation ready

Available Options

  • Receivers for 90% refrigerant storage (heated and insulated for temperatures below 30°F ambient)
  • Condenser coil coating for corrosion protection in coastal areas
  • Fan speed control to maintain steady head pressure in cold ambient
  • Voltage and phase monitor in 2 through 7.5 ton
  • Cabinet mounted glycerin filled fluid supply pressure gauge
  • Cabinet mounted, glycerin filled refrigeration pressure gauges
  • Cabinet mounted, analog fluid inlet and outlet gauges
  • Inhibited propylene glycol concentrate or 65% / 35% premix in 55 gallon drums or 5 gallon carboys
  • Castors for portability
  • Factory authorized technician for startup and training
  • Factory authorized contractor for installation

Specification Sheet Downloads

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Installation Examples

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About Glycol

A chiller will run without glycol as long as the fluid temperature in the system is above freezing. Glycol or other inhibitors are recommended for most process cooling applications even if the fluid temperature doesn’t reach temperatures near freezing.

What type of glycol is best?
American Chillers recommends Inhibited Propylene Glycol which works as an anti-freeze, but also includes rust inhibitors and other additives that keeps your pump seals lubricated and fluids and chilled water system running in optimal condition. Other glycols may be acceptable.



Glycol will reduce chiller capacity.

Questions about what glycol concentration and/or type to purchase? Contact and American Chillers sales engineer for assistance.

Free Cooling / Energy Savings

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Installation & Maintenance

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What Is Covered:

1. All parts are guaranteed to be free of defects in material and workmanship for 12 months from date of  original purchase.

2. Scroll compressors are guaranteed to be free of defects in material and workmanship for 60 months from date of purchase.

3. Labor: during the first 30 days after startup, American Chillers will reimburse the owner for any reasonable labor charges incurred for the replacement of a warranted part, according to the rate schedule.  A time allowance of 30 minutes, for one technician is allowed for the diagnosing of a malfunction. Consult customer service for the labor rate schedule .

4. During the first 30 days after startup, American Chillers will pay for regular, ground shipping of any covered part shipped to
the customer. Express shipping and air freight charges are the responsibility of the customer. After 30 days, the customer is responsible for shipping defective parts back for credit and for the shipping charges from American Chillers to the customer.


What is not covered:

1. shipping costs after the initial 30 days. Express shipping charges over regular ground charges are not covered.

2. Labor charges of a helper during repair; truck, mileage, and transportation charges; time over 30 minutes to diagnose a problem’s cause.

3. Labor rates in excess of pre-negotiated wholesale rates, usually no more than 70% of regular retail. American Chillers does not pay retail labor rates.

4. Loss of business or added expense for cranes, lifts, permits, or contractor services arising from the repair or replacement of a failed part.

5. Failures caused by external factors beyond the control of this manufacturer and the component manufacturer.

6. Supplies used to effect the repairs such as solder, nitrogen gas, dyes, bubble soap, and leak detector.

7. Part or component failure must be a result of manufacturing defect or normal wear and tear. Parts that fail due to causes external to the chiller, such as improper installation, electrical supply problems, leaking or broken pipes and tube erosion from excessive fluid velocity, freezing or poor water quality, failure to maintain clean filters, contractor or owner negligence, etc., are not covered by this warranty.  American Chillers will not reimburse the customer for locally purchased parts through another vendor without prior authorization. A replacement part, however, will be provided upon return of the defective part, only.

8. Electrical parts sent as replacement may not be returned for credit.

9. Glycol, replacement glycol, the labor to add glycol to the chiller and chiller damage resulting from improper freeze protection are not covered by the chiller warranty.


Policy Regarding Replacement Parts:

American Chillers will provide a replacement part for any covered defective part as per the above conditions. Customers are responsible for shipping charges after the first 30 day period. Replacement parts may be new or reconditioned, at the discretion of American Chillers. All warranty claims must be processed through American Chillers.  The replacement part will be warranted for the remainder of the original part warranty or a minimum of 90 days.



Compressors must have the connections securely plugged or pinched and soldered shut to prevent any oil, leakage during shipment. Failure to follow this procedure will void the warranty on the compressor. A $50.00 handling fee will be assessed for compressor warranty returns.


To Make A Warranty Claim 

All warranty claims must be processed through American and all parts returned for credit must have a Return Material Authorization (RMA) number. To make a warranty claim, contact American Chillers between the hours of  8:00 a.m. – 4:30 p.m. (Eastern time), Monday – Friday.  American Chillers will issue an RMA number. The RMA number must be clearly marked on the outside packaging or the package will be refused. Return parts must be packaged securely to avoid shipping damage. Parts damaged during shipment will not be credited.



No parts will be shipped without payment. Parts must be paid for prior to shipment. American Chillers will accept VISA and MasterCard for your convenience. Your credit card will not be billed until the part(s) are shipped. Credit will be issued for the cost of the part, less any applicable freight and handling charges, after the defective part(s) are returned, freight prepaid, if the part failed due to a defect of material or workmanship. Return parts must be received within 30 days of making the claim. No credit or refunds will be given after 30 days.


Warranty policies may vary by customer, equipment and/or job. Refer to your sales documents for warranty details specific to your purchase.