HP Refrigerated Recirculating Chillers manual Set Up, Reservoir Fluids

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Section 2 - Set Up

Before proceeding, be sure all power is off

2.1 Location

Locate the chiller on a strong, level surface. Insure easy access to the top cover and position the chiller for unobstructed air flow through the front and rear screens. The front wheels can be locked to keep the chiller in place while in use. Avoid voltage drops by using properly grounded power outlets wired with 14 gauge or larger diameter wire. If possible, be close to the power distribution panel. Minimize low line voltage problems by eliminating the use of extension cords.

2.2 Reservoir Fluids

For most applications above +15°C, distilled water is satisfactory. For operation below +15°C, the chiller MUST be protected with an antifreeze solution. Ethylene glycol (laboratory grade) and water in a 50/50 mixture is satisfactory from +15°C to -15°C. Select a fluid that is compatible with the chiller's wetted parts of brass, copper, polypropylene, PVC, nylon and stainless steel. Only use fluids that will satisfy safety, health and equipment compatibility requirements. CAUSTIC, CORROSIVE

OR FLAMMABLE FLUIDS MUST NEVER BE USED.

Do not use a flammable fluid as a fire hazard may result.

WARNING!

Operation below +15°C requires antifreeze in the circulating fluid.

2.3 Pump, Hoses and Couplings

To maintain a safe workplace and to avoid leaks, special care should be taken when choosing hoses and connectors for the chiller.

1.Pressure ratings - Hoses should be able to withstand the largest pressure that they will encounter. For positive displacement pump models, this is 100 psi.

2.Flexible tubing - Avoid tubing that will expand and take up fluid volume when operating at the desired pressure.

3.Hose diameter - The fittings on the chiller Outlet and Inlet lines are internally threaded,

1/2 inch I.D. N.P.T. The 2 adapters sets supplied are for 1/2 inch I.D. tubing and 5/8 inch I.D. tubing. Other fittings can be used if a smaller hose diameter is desired. Remember that the operating pressure in the circulating system increases when using a smaller diameter hose.

4.Couplings & Clamps - The use of screw-tightened hose clamps is necessary on all joints to insure good, tight connections. Quick connectors are not recommended because they have the potential for restricting flow rate.

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Contents Operators Manual Refrigerated Recirculating Chillers Table of Contents General Information Unpacking WarrantyPackage Contents General InformationGeneral Specifications To All Chillers Chiller Specifications and Pump PerformanceModel 6205 6305 6505 Model 6705 6105 6155 Before proceeding, be sure all power is off Location Set UpReservoir Fluids Setting Up an Open Bath System to the Chiller Setting Up a Closed System or Cooling Coil to the ChillerSelection of Celsius or Fahrenheit Power RequirementsTemperature Setting and Adjustments OperationDraining the Unit Setting the Readout High LimitController Default Settings Controller Display Messages6705 Diagram of Models6155 Fluid Filter Included With High Pressure Pump MaintenancePositive Displacement and Turbine High Pressure Pump Motor Standard Magnetic Drive Centrifugal Pump Motor