Bissell HS-20 instruction manual Cooling Water Connections

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Installation

The cooling water discharge should, if possible, be connected to an open drain so that cooling water flow can readily be checked. The temperature of the discharged cooling water should not exceed 130°F (54°C).

b.The quick-cool coil at the boiler plate must be connected to an open drain and the feed line controlled by a separate water 3-way valve (open, closed, and vent to atmosphere). The drain must be below the boiler level so that it is drained completely when the quick-cool coil water supply is shut off and the pump is operating.

Figure 1-3. Cooling Water Connections

1-7

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Contents HS-20 Diffusion Pump Sales and Service Offices Telephone Numbers Warranty Warranty Replacement and AdjustmentPage Page Iii Prohibited Action Explosion-Causing Condition Prohibited Action Result Page Vii Page Page Table of Contents Section Safety Considerations Section I InstallationList of Illustrations List of TablesOperating Specifications See Figure Installation GeneralModel Technical Specifications ASA Outline Drawing HS-20 Diffusion Pump, with ASA Flanges Cleaning a NEW Pump UnpackingInstallation Vacuum Connections Safety Considerations and InterlocksUtility and System Connections Cooling Water Connections See FigureCooling Water Connections Thermal Switches Initial Vacuum Test240/400/430/440/480 V Wiring Diagram HS-20 Diffusion Pump 415 V Wiring Diagram HS-20 Diffusion Pump Adding Pump Fluid Sight Glass Assembly START-UP Procedure OperationShutdown Procedure OperationMaintenance General Periodic InspectionMaintenance CleaningDisassembling and Reassembling the Cold CAP Refer to Figure Do not overtighten the screwExternal Fittings Cold Cap Assembly Disassembling the Jet Assembly Refer to Figure JET AssemblyDisassembling the Lower Jet Assembly Inch Jet Assembly Reassembling the Jet Assembly Maintenance Reassembling the Lower Jet AssemblyHeater Replacement Jet Coupling Tighten clamping nuts to 250 in.-lbs Maintenance Replaceable Parts Maintenance Outgassing Troubleshooting LeakagePoor Pump or System Performance Troubleshooting