Factory Installed Options

Pump Options

These options should be ordered with your chiller. Most cannot be field-installed. Additional options may be available. Contact PolyScience for additional information.

The following list provides a brief description of the options available on DuraChill® chillers. Please contact our Sales and Customer Service Departments for assistance in selecting the best options for your application.

• Alarm Output (Dry Contact) – A dry contact relay that can be used to activate an external alarm when an alarm or fault condition is detected.
• Audible & Visual Alarms – Local audible and visual signals to alert the operator to alarm or fault conditions.
• Conductivity Control – Controls the conductivity of the coolant at a preset level. Includes conductivity controller, filter, and flow meter with valve. For use with DI water package, below.
• Deionized Water Package – All wetted components compatible for use with deionized water.
• External Temperature Tracking – Allows set-point control based on room, machinery or material temperature. External temperature probe required.
• External Water Filter – Filters particulates and other contaminants from process lines. May be installed on either the Chiller inlet or outlet.
• Full Flow Bypass Valve – Automatically diverts flow to protect the pump in the event of a blockage in the process or process line.
• Heater – Extends the upper operating temperature of the Chiller and provides the ability to apply heat above the cooling temperature range. This option is useful when cooling devices that must be brought to a temperature above ambient before operation can begin.
• High Ambient Temperature Package – Permits Chiller operation at ambient temperatures up to +40°C/+104°F.
• High/Low Pressure Cutout Switches – Automatically disconnects power to the refrigeration system in the event refrigerant pressure is outside the factory-set values.
• Higher Output Centrifugal Pump – For high flow/low pressure applications; 0.10 to 3.0 HP stainless steel pumps available.
• Higher Output Positive Displacement Pump – For low flow/high pressure applications; 2.33 to 3.5 gpm (8.8 to 13.2 l/min) pumps available.
• Higher Output Turbine Pump – For high flow/high pressure applications; 0.75 and 1.0 HP stainless steel pumps and 0.75 to 5.0 HP bronze pumps available.
• Low Ambient Temperature Package – Permits Chiller operation at ambient temperatures as low as -28.8°C/-20°F.
• Low Liquid Level Switch Alarm – Alerts the operator when the fluid level in the reservoir drops too low.
• No Reservoir – For applications where cooling fluid is contained in an external reservoir.
• Non-standard Process Temperatures – -9° to +30°C/+15° to +86°F.
• Remote On/Off (24 VDC) – Allows operator to turn Chiller power on/off via a 24VDC signal from a control room or other remote location.
• Remote On/Off (Dry Contact) – Allows operator to turn Chiller power on/off via a contact closure from a control room or other remote location.
• RS232/RS485 Communication – Allows the operator to remotely control the Chiller and/or output temperature readings to an external recorder or other auxiliary device.
• Stainless Steel Reservoir – For applications with higher process temperatures.
• Tank Sight Glass or Level Indicator – Serves as a convenient means of checking the fluid level within the reservoir.
• Water Cooled Condenser – For applications where facility water will be used to cool the Chiller condenser.