MVE AUTOMATIC LN2 SUPPLY SWITCH TECHNICAL MANUAL . ® Innovation. Experience. Performance. Chart Industries, Inc. BioMedical Group 2200 Airport Industrial Drive Suite#500 Ball Ground, Georgia 30107 Technical Manual P/N 13934953 Copyright © 2009 Ref 13934953-C.doc MVE Automatic LN2 Supply Switch ============================================================================= TECHNICAL MANUAL Chart Industries Inc. Chartindustries.com 2200 Airport Industrial Drive Suite 500 Ball Ground, GA 30107 Customer/Technical Service USA: Toll Free Phone: 1-800-482-2473 Toll Free Fax: 1-888-932-2473 (To place an order) Fax: 1-770-721-7758 [email protected] Customer/Technical Service Europe Phone: +44 (0) 1344 403 100 Fax: +44 (0) 1344 427 224 Customer/Technical Service Australia/Pac Rim Phone: +61 297 494333 Fax: +61 297 494666 This Technical Manual covers use and maintenance of the MVE Automatic LN2 Supply Switch. It is intended for use by experienced personnel only. 13934953-C.doc 2 Table of Contents CHART INDUSTRIES CONTACT............................................................................................................................................................................2 TABLE OF CONTENTS .............................................................................................................................................................................................3 INTRODUCTION ........................................................................................................................................................................................................4 HANDLING OF LIQUID NITROGEN......................................................................................................................................................................8 LIQUID NITROGEN SAFETY PRECAUTIONS.....................................................................................................................................................9 RECOMMEND FIRST AID.........................................................................................................................................................................................9 INSTALLATION/SETUP............................................................................................................................................................................................10 LOCATION OF THE UNIT........................................................................................................................................................................................10 MOUNTING OF THE UNIT.......................................................................................................................................................................................10 POWER CONNECTION.............................................................................................................................................................................................10 LN2 CONNECTION ....................................................................................................................................................................................................11 OPERATING INSTRUCTIONS (BASIC) .................................................................................................................................................................11 PRODUCT IDENTIFICATION..................................................................................................................................................................................12 CONTROL PANEL......................................................................................................................................................................................................12 SIDE PANEL/ELECTRICAL/ PHYSICAL CONNECTIONS................................................................................................................................13 GLOBAL ALARM CONNECTIONS...................................................................................................................................................................13, 19 LIQUID NITROGEN PLUMBING / SOLENOID / PHYSICAL CONNECTIONS .............................................................................................14 LIQUID NITROGEN SUPPLY FLOW CHART.......................................................................................................................................................15 FUNCTIONS AND FEATURES..................................................................................................................................................................................16 OPERATION…… ........................................................................................................................................................................................................16 FUNCTION DETAILS............................................................................................................................................................................................17, 18 MAINTENANCE AND CONDENSATION.......................................................................................................................................................20 TROUBLESHOOTING GUIDE.........................................................................................................................................................................................24 Relay test procedure.................................................................................................................................................................................23 Pressure switch test procedure.................................................................................................................................................................21 Solenoid valve test procedure ..................................................................................................................................................................22 ASSEMBLY DIAGRAMS AND REPLACEMENT PARTS LISTS........................................................................................................... 29 PARTS LISTS...............................................................................................................................................................................................29 Control Assembly Parts list......................................................................................................................................................................31 Plumbing Assembly Parts list...................................................................................................................................................................32 Complete Assembly Parts List..................................................................................................................................................................30 Storage / Transporting.............................................................................................................................................................................11 PART NUMBER MVE AUTOMATIC LN2 SUPPLY SWITCH AND PLUMBING ASSEMBLY................................................................5 Table of Figures FIGURE 1, ENGLISH TEXT OVERLAY LABEL Part Number..............................................................................................................................4 FIGURE 2, LN2 SUPPLY SWITCH AND PLUMBING ASSEMBLY......................................................................................................................5 FIGURES 3,4,5,6,7,8,9 CONTROLLER AND PLUMBING DIMENSIONS ......................................................................................................6, 7 FIGURE 10, TYPICAL CRYOGENIC STORAGE DEWAR (SUPPLY TANK).........................................................................................................8 FIGURE 11, CONTROL PANEL SYMBOLIC DESCRIPTION ............................................................................................................................12 FIGURE 12, SIDE PANEL / ELECTRICAL / PHYSICAL CONNECTIONS ............................................................................................................13 FIGURE 13,14 PLUMBING / SOLENOID PHYSICAL CONNECTIONS...............................................................................................................14 FIGURE 14, MANUAL SHUT OFF VALVES...................................................................................................................................................14 FIGURE 15, LN2 SUPPLY LIQUID FLOW......................................................................................................................................................15 FIGURE 16, CONTROL PANEL / OPERATION / FUNCTIONS AND FEATURES..................................................................................................16 FIGURE 18, SELECT PRIMARY SWITCH / POWER INDICATOR......................................................................................................................17 FIGURE 19, PRIMARY, STANDBY INDICATORS...........................................................................................................................................17 FIGURE 20, IN USE, EMPTY, RESET SWITCHES............................................................................................................................................17