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Environmental Control and Life Support System USA006020 Rev. B Space Program Operations Contract Environmental Control and Life Support System ECLSS 21002 October 23, 2006 Final Version This document has been reviewed and updated. No subsequent updates to this document are anticipated or required due to the approaching shuttle program closure. Contract NNJ06VA01C Copyright © 2004 by United Space Alliance, LLC. These materials are sponsored by the National Aeronautics and Space Administration under Contract NAS9-20000. The U.S. Government retains a paid-up, nonexclusive, irrevocable worldwide license in such materials to reproduce, prepare derivative works, distribute copies to the public, and to perform publicly and display publicly, by or on behalf of the U.S. Government. All other rights are reserved by the copyright owner. USA006020 Rev. B Environmental Control and Life Support System ECLSS 21002 Prepared by Original approval obtained Michael Sadowski SME and Book Manager USA/Shuttle Systems Approved by Original approval obtained Jerry Orcutt Manager USA/Shuttle Systems Contract NNJ06VA01C USA006020 Rev. B REVISION LOG Rev. Change letter no. Description Date Basic USA number issued; supersedes TD415 10/07/2003 A Updated for OI, selected graphics, cargo HX, 3/29/2004 and editorial corrections B Added SPOC template, added copyright and 10/23/2006 final version statements USA006020 Rev. B LIST OF EFFECTIVE PAGES The current status of all pages in this document is as shown below: Page No. Change No. Preface Rev. B i – viii Rev. B 1-1 – 1-6 Rev. B 2-1 – 2-36 Rev. B 3-1 – 3-38 Rev. B 4-1 – 4-48 Rev. B 5-1 – 5-30 Rev. B 6-1 – 6-24 Rev. B A-1 – A-6 Rev. B B-1 – B-10 Rev. B C-1 – C-18 Rev. B USA006020 Rev. B PREFACE The contents of this document were provided by the Shuttle Systems Group, Shuttle Systems Training Branch, Space Flight Training & Facility Operations, Mission Operations Directorate (MOD), Lyndon B. Johnson Space Center (JSC), National Aeronautics and Space Administration (NASA). Technical documentation support was provided by Integrated Documentation Services (IDS). Any questions concerning this training manual or any recommendations should be directed to the Shuttle Systems Document Controller, Tina Weber, DT36, 281-244-7679, or to the training manual Book Manager, Michael Sadowski, DT36, 281-244-7335. This material is for training purposes only and should not be used as a source of operational data. All numerical data, displays, and checklist references are intended as examples. To determine any prerequisites before using this document, consult the applicable Certification Plan. For shuttle manuals, consult the Flight Operations Support Personnel Training Guide (Blue Book) or the Crew Training Catalog. For Space Station manuals, consult the appropriate Space Station Certification Training Guide or Training Administration Management System (TAMS). The applicable training package should be studied before attending any classroom session or lesson for which this is a prerequisite. A Training Materials Evaluation is included at the end of this document. Inputs on this sheet will be used to evaluate the lesson material. You do not need to sign the sheet. USA006020 Rev. B This page intentionally blank. USA006020 Rev. B CONTENTS Section Page 1.0 INTRODUCTION ....................................................................................... 1-1 1.1 PRESSURE CONTROL SYSTEM INTERFACES........................ 1-2 1.2 ATMOSPHERIC REVITALIZATION SYSTEM INTERFACES...... 1-4 1.3 ACTIVE THERMAL CONTROL SYSTEM INTERFACES ............ 1-4 1.4 SUPPLY AND WASTEWATER SYSTEM INTERFACES............. 1-5 2.0 PRESSURE CONTROL SYSTEM ............................................................ 2-1 2.1 OXYGEN SYSTEM...................................................................... 2-1 2.2 NITROGEN SYSTEM .................................................................. 2-3 2.3 OXYGEN/NITROGEN MANIFOLD .............................................. 2-5 2.3.1 Oxygen/Nitrogen Control Valve Manually Open........................... 2-8 2.3.2 Oxygen/Nitrogen Control Valve Manually Closed ........................ 2-8 2.3.3 Auto Control of the Oxygen/Nitrogen Control Valve..................... 2-9 2.4 OVER/UNDERPRESSURIZATION PROTECTION ..................... 2-10 2.5 PRESSURE CONTROL SYSTEM CONTROLS .......................... 2-13 2.6 PRESSURE CONTROL SYSTEM INSTRUMENTATION/DISPLAYS ................................................ 2-19 2.6.1 Instrumentation ............................................................................ 2-19 2.6.2 CRT Displays ............................................................................... 2-21 2.6.3 Dedicated Displays ...................................................................... 2-21 2.6.4 Caution and Warning ................................................................... 2-26 2.7 PRESSURE CONTROL SYSTEM NOMINAL OPERATION........ 2-27 2.7.1 Ascent.......................................................................................... 2-27 2.7.2 Orbit ............................................................................................. 2-27 2.7.3 10.2 psia Cabin ............................................................................ 2-28 2.7.4 Entry............................................................................................. 2-28 2.8 PRESSURIZATION SYSTEM PERFORMANCE, LIMITATIONS, AND CAPABILITIES............................................ 2-35 3.0 ATMOSPHERIC REVITALIZATION SYSTEM.......................................... 3-1 3.1 ARS AIR SYSTEM....................................................................... 3-1 3.2 CABIN AIR ................................................................................... 3-1 3.2.1 Cabin Fan .................................................................................... 3-2 3.2.2 LiOH Canisters............................................................................. 3-3 3.2.3 Cabin Temperature Control Valve................................................ 3-3 3.2.4 Cabin Heat Exchanger ................................................................. 3-7 3.2.5 Humidity Separator ...................................................................... 3-7 3.2.6 Ambient Temperature Catalytic Oxidizer...................................... 3-8 3.2.7 Avionics Bay Fans........................................................................ 3-9 3.2.8 Inertial Measurement Unit Fans ................................................... 3-10 3.3 ATMOSPHERIC REVITALIZATION SYSTEM WATER ............... 3-10 3.3.1 Water Pumps ............................................................................... 3-12 i USA006020 Rev. B Section Page 3.3.2 Av Bay 1 Leg................................................................................ 3-12 3.3.3 Av Bay 2 Leg................................................................................ 3-12 3.3.4 Av Bay 3 Leg................................................................................ 3-12 3.3.5 Water/Freon Interchanger............................................................ 3-12 3.3.6 Interchanger Mismatch................................................................. 3-13 3.3.7 Liquid-Cooled Garment Heat Exchanger ..................................... 3-13 3.3.8 Water Chiller ................................................................................ 3-14 3.4 ATMOSPHERIC REVITALIZATION SYSTEM CONTROLS ........ 3-14 3.5 ATMOSPHERIC REVITALIZATION SYSTEM INSTRUMENTATION AND DISPLAYS........................................ 3-18 3.5.1 CRT Displays ............................................................................... 3-18 3.5.2 Dedicated Displays ...................................................................... 3-27 3.5.3 Caution and Warning ................................................................... 3-27 3.6 ATMOSPHERIC REVITALIZATION SYSTEM NOMINAL OPERATION................................................................................ 3-29 3.6.1 Ascent.......................................................................................... 3-29 3.6.2 Orbit ............................................................................................. 3-29 3.6.3 Special Features .......................................................................... 3-29 3.6.4 Atmospheric Revitalization System Cooling Tables ..................... 3-30 3.6.5 ARS Systems Performance, Limitations, and Capabilities ........... 3-38 4.0 ACTIVE THERMAL CONTROL SYSTEM................................................. 4-1 4.1 BASIC FUNCTIONS .................................................................... 4-1 4.1.1 Heat Sinks and Heat Sources ...................................................... 4-1 4.2 FREON PUMPS........................................................................... 4-3 4.3 AFT COLDPLATES...................................................................... 4-4 4.4 GROUND SUPPORT EQUIPMENT HEAT EXCHANGER .......... 4-6 4.5 MIDBODY COLDPLATES............................................................ 4-7 4.6 HYDRAULIC HEAT EXCHANGER .............................................. 4-8 4.7 FUEL CELL HEAT EXCHANGER................................................ 4-8 4.8 CARGO HEAT EXCHANGER...................................................... 4-9 4.9 OXYGEN RESTRICTORS ........................................................... 4-10 4.10 WATER/FREON INTERCHANGER ............................................. 4-10 4.11 PAYLOAD HEAT EXCHANGER.................................................
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