
TABLE OF CONTENTS
i
Page
SAFETY
……… ............................................................................................................... 1
SERVICE
…….. ............................................................................................................... 5
INTRODUCTION
.......................................................................................................... 7
Helium Compressor, Model F-20L ...................................................................... 7
PRINCIPLES of OPERATION
........................................................................................ 9
DESCRIPTION
........................................................................................................... 11
Components ..................................................................................................... 11
SPECIFICATIONS
....................................................................................................... 13
F-20L Compressor (low voltage model) ............................................................. 13
Electrical Characteristics ................................................................................. 13
Power Consumption ........................................................................................ 13
Compressor Control ........................................................................................ 14
Front Panel Connections ................................................................................... 14
Front Panel Mounted Items ............................................................................... 14
Environmental Requirements ............................................................................ 14
Mounting Position .............................................................................................. 15
Cooling Requirements ..................................................................................... 15
Water Quality Requirements .............................................................................. 15
Helium Gas Pressures ..................................................................................... 16
Refrigerant Quality ........................................................................................... 16
Color Codes ...................................................................................................... 16
Optional Spacing ............................................................................................... 16
Maintenance Intervals ....................................................................................... 16
Noise Level ....................................................................................................... 16
Dimensions ....................................................................................................... 16
Weight .............................................................................................................. 17
General Operating Conditions ........................................................................... 17
Supplier Name and Address .............................................................................. 17
Product End of Life Instructions ......................................................................... 17
Regulatory Compliance ..................................................................................... 18
INSTALLATION
.......................................................................................................... 21
Introduction ....................................................................................................... 21
Receipt Inspection Instructions .......................................................................... 21
Unpackaging and Product Inspection Instructions ........................................... 22
Compressor Location ....................................................................................... 24
Caster Removal ................................................................................................ 24
Electrical Supply Connection – Field Wiring Instructions.................................... 24
Coolant Connections ......................................................................................... 25
Compressor Checkout ..................................................................................... 26
Install the Gas Lines ......................................................................................... 27
Install the Cold Head Cable(s) .......................................................................... 28
Remote On/Off cable (Optional Accessory) ...................................................... 29
Prestart Check ................................................................................................... 29
Summary of Contents for F-20L
Page 2: ......
Page 10: ...6 This page is intentionally blank...
Page 12: ...8 This page is intentionally blank...
Page 23: ...Specifications 19 Figure 2 F 20L Compressor Front View...
Page 24: ...Specifications 20 Figure 3 F 20L Compressor Dimensions Dimensions are in inches and mm...
Page 34: ...30 This page is intentionally blank...
Page 36: ...32 This page is intentionally blank...
Page 48: ...44 This page is intentionally blank...
Page 53: ...Troubleshooting 49 Figure 19 F 20L Compressor Wiring Diagram...
Page 54: ...Troubleshooting 50 Figure 20 F 20L Compressor Wiring Schematic...