HC-8E2, HC-8E3 and HC-8E4 Helium HC-8E4...HC-8E2, HC-8E3 and HC-8E4 Helium Compressors Technical Manual SHI-APD Cryogenics, Inc. 1833 Vultee Street Allentown, PA 18103-4783 U.S.A

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  • HC-8E2, HC-8E3 and HC-8E4 Helium Compressors

    Technical Manual

    SHI-APD Cryogenics, Inc. 1833 Vultee Street

    Allentown, PA 18103-4783 U.S.A.

    Revision A: January 2006 266530A

  • TABLE OF CONTENTS

    Page

    SAFETY ........................................................................................................................... .1

    SERVICE ......................................................................................................................... 4

    INTRODUCTION ............................................................................................................ 5 Helium Compressors, Models HC-8E2, HC-8E3 and HC-8E4.............................. 5

    PRINCIPLES OF OPERATION ...................................................................................... 7

    DESCRIPTION ............................................................................................................... 9 Components ........................................................................................................ 9

    SPECIFICATIONS ........................................................................................................ 13 Electrical Characteristics ................................................................................... 13 Cooling Requirements ....................................................................................... 13 Refrigerant Quality ............................................................................................ 13 HC-8E2 Helium Gas Pressures ........................................................................ 14 HC-8E3 Helium Gas Pressures .......................................................................... 14 HC-8E4 Helium Gas Pressures .......................................................................... 15 Compressor Lubricant ....................................................................................... 15 Compressor Weight .......................................................................................... 15 Compressor Dimensions..................................................................................... 15 Space Requirements........................................................................................... 15 Mounting Position .............................................................................................. 15 Environmental Requirements ............................................................................ 16 Protective Earth Terminal .................................................................................. 16 Maintenance Intervals ......................................................................................... 16 Installation Kit .................................................................................................... 16 Gas Manifold Kit (Optional Accessory) ............................................................. 16 Adapter Fittings ................................................................................................. 16 Remote On/Off Cable (Optional Accessory) ....................................................... 16 Supplier Name and Address ............................................................................. 17

    INSTALLATION ............................................................................................................ 19 Introduction ......................................................................................................... 19 Unpacking, Inspection and Pressure Check ..................................................... 19 Compressor Position.......................................................................................... 21 Field Wire the Compressor ............................................................................... 21 Compressor Checkout ...................................................................................... 23 Interconnections ................................................................................................ 23 Remote On/Off Cable (Optional Accessory) ..................................................... 25 Compressor Shipping Preparation ...................................................................... 26

    OPERATION ............................................................................................................... 27 Prestart Check .................................................................................................. 27 Starting .............................................................................................................. 27 Stopping ............................................................................................................ 27 Restarting after a Power Failure ....................................................................... 27

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  • TABLE OF CONTENTS (continued)

    Page

    MAINTENANCE ........................................................................................................... 29 Adsorber Replacement ..................................................................................... 30 Adsorber Removal ....................................................................................... 30 Adsorber Installation .................................................................................... 31 Used Adsorber Venting and Disposal ......................................................... 31 Charging and Venting ....................................................................................... 32 Charging Procedure ..................................................................................... 32 Venting Procedure to Adjust the Equalization Pressure .............................. 33 Venting Procedure to Vent to Atmospheric Pressure .................................. 33 Gas Cleanup ..................................................................................................... 34 Leak Check ........................................................................................................ 36 Leak Repair ....................................................................................................... 36 Replace the Compressor Shell High Temperature Switch.................................. 37 TROUBLESHOOTING ................................................................................................. 39 Automatic Shutdown ......................................................................................... 39 Troubleshooting Guide ...................................................................................... 40 Compressor Motor ............................................................................................ 42 Winding Continuity, Grounding and Resistance Checks.............................. 42 Current Measurement ................................................................................. 43 PARTS ...... ............................................................................................................... 49 Ordering ............................................................................................................ 49 HC-8E2/HC-8E3/HC-8E4 Compressor Parts Identification and Numbers ........ 49 Adapter Fittings ................................................................................................. 54 Cables ............................................................................................................... 55

    ILLUSTRATIONS LIST Figure 1 HC-8E2, HC-8E3 and HC-8E4 Flow Diagram ................................... 7 Figure 2 HC-8E2 and HC-8E3 Parts Identification on Front Panel ................ 10 Figure 3 HC-8E4 Parts Identification on Front Panel ...................................... 11 Figure 4 Connect and Remove the Water Lines ........................................... 23 Figure 5 Gas Manifolds Installed.................................................................... 24 Figure 6 Connect Gas Line to Compressor or Manifold ................................ 25 Figure 7 Compressor Shell High Temperature Switch .................................... 38 Figure 8 Compressor Terminals .................................................................... 43 Figure 9 HC-8E2/HC-8E3 Wiring Diagram .................................................... 45 Figure 10 HC-8E2/HC-8E3 Electrical Schematic ............................................ 46 Figure 11 HC-8E4 Wiring Diagram.................................................................... 47 Figure 12 HC-8E4 Electrical Schematic ............................................................ 48 Figure 13 Parts Identification............................................................................ 52 Figure 14 Parts Identification ........................................................................... 53 Figure 15 Adapter Fitting, 8F and 8M, with Valve ............................................ 54 Figure 16 Adapter Fitting, 8F, with Valve .......................................................... 54

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  • SAFETY

    GENERAL

    The HC-8E2, HC-8E3 and HC-8E4 Helium Compressors are designed to operate safely when the installation, operation and servicing are performed in accordance with the instructions in this technical manual. Consult the nearest SHI-APD Cryogenics Service Center with any questions you may have concerning the use or maintenance of these compressors. For Service Center locations, see the Service section of this manual.

    SPECIAL NOTICES

    Three types of special notices - WARNINGS, CAUTIONS and NOTES