TABLE OF CONTENTS
i
Page
SAFETY
......................................................................................................................... .1
SERVICE
....................................................................................................................... 5
INTRODUCTION
.......................................................................................................... 7
Helium Compressor, Models HC-4E1 and HC-4E2.............................................. 7
PRINCIPLES OF OPERATION
.................................................................................... 9
DESCRIPTION
........................................................................................................... 11
Components .................................................................................................... 11
SPECIFICATIONS
...................................................................................................... 17
Electrical Characteristics ................................................................................. 17
Cooling Requirements ..................................................................................... 18
Refrigerant Quality ........................................................................................... 18
Helium Gas Pressures ..................................................................................... 18
Compressor Lubricant ..................................................................................... 19
Compressor Weight ......................................................................................... 19
Compressor Dimensions ................................................................................... 19
Space Requirements ......................................................................................... 19
Mounting Position ............................................................................................ 19
Environmental Requirements .......................................................................... 19
Protective Earth Terminal ................................................................................ 19
Maintenance Intervals ....................................................................................... 19
Installation Kit .................................................................................................. 20
Adapter Fittings (Optional Accessory)............................................................... 20
Remote On/Off Cable (Optional Accessory) ...................................................... 20
Supplier Name and Address ............................................................................ 20
Regulatory Compliance ................................................................................... 21
INSTALLATION
.......................................................................................................... 23
Introduction ....................................................................................................... 23
Receipt Inspection Instructions ........................................................................ 23
Compressor Position ........................................................................................ 25
Mains Power Supply Connection ..................................................................... 26
Field Wire the Compressor .............................................................................. 28
Compressor Checkout ..................................................................................... 29
Interconnections .............................................................................................. 30
Remote On/Off Cable (Optional Accessory) .................................................... 31
Compressor Shipping Preparation ..................................................................... 32
OPERATION
............................................................................................................. 33
Prestart Check ................................................................................................. 33
Starting ............................................................................................................ 33
Stopping .......................................................................................................... 33
Restarting after a Power Failure ...................................................................... 33
Summary of Contents for HC-4E1
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Page 55: ...Troubleshooting 51 Figure 9 HC 4E1 Wiring Diagram...
Page 56: ...Troubleshooting 52 Figure 10 HC 4E2 Wiring Diagram...
Page 57: ...Troubleshooting 53 Figure 11 HC 4E1 Electrical Schematic...
Page 58: ...Troubleshooting 54 Figure 12 HC 4E2 Electrical Schematic...
Page 61: ...Parts 57 Figure 13 Parts Identification 18 21 19 13 14 20 16...