Amron 8225I-UM 2-Diver Air Control Systems User Manual REV
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Instruction Manual for Amron International, Inc. Model 8225i & 8225iC-01 2-Diver Air Control Systems S/N: 1380 Aspen Way, Vista California 92081-8349 United States of America Phone: (760) 208-6500 Fax (760) 599-3857 email: [email protected] web: www.amronintl.com This manual and the information contained herein are provided for use as an operation and maintenance guide. No license or rights to manufacture, reproduce, or sell either the manual or articles described herein are given. Amron International, Inc. reserves the right to change specifications without notice. Copyright© 2021 Amron International, Inc. MODEL 8225i & 8225iC-01 USER MANUAL TABLE OF CONTENTS 1. INTRODUCTION AND SPECIFICATIONS ............................................................................................ 1 1.1 Introduction .................................................................................................................................... 1 1.2 Specifications Air Control .............................................................................................................. 2 1.3 Specifications Depth Monitoring (Pneumo) ................................................................................... 3 1.4 Specifications Communications (8225iC-01 Model Only) ............................................................. 4 1.5 Specifications Enclosure ............................................................................................................... 4 2. OPTIONS AND ACCESSORIES ........................................................................................................... 5 2.1 Model 2821-28 Remote Push-to-Talk (2-Wire Operation) ............................................................ 5 2.2 Model 2822-28 Remote Walk-and-Talk (4-Wire Operation) ......................................................... 5 2.3 Model 2460-28 Headset ................................................................................................................ 5 2.4 Model 2405-28 Hand-Held Microphone ........................................................................................ 5 3. SAFETY AND REGULATIONS ............................................................................................................. 6 3.1 Diving Safety and Regulations ...................................................................................................... 6 3.2 Personnel Requirements ............................................................................................................... 7 3.3 Air Supply Requirements .............................................................................................................. 7 3.4 Calibration, Service and Inspection .............................................................................................. 8 4. CONTROLS & CONNECTIONS ............................................................................................................ 9 4.1 Air Control ..................................................................................................................................... 9 4.2 Air Control Front Panel, Model 8225i/8225iC-01 ........................................................................ 11 4.3 Depth Monitoring ......................................................................................................................... 12 4.4 Pneumo Front Panel, Model 8225i/8225iC-01 ............................................................................ 13 4.5 Communications (8225iC-01 Model Only) .................................................................................. 14 4.6 Communicator Front Panel, Model 2825A-04 ............................................................................. 18 5. PRE-DIVE PROCEDURES .................................................................................................................. 19 5.1 Pre-Dive Set-Up .......................................................................................................................... 19 5.2 Pre-Dive Check Out .................................................................................................................... 19 5.3 Pre-Dive Pneumo Test ................................................................................................................ 20 5.4 Pre-Dive Testing Communications (8225iC-01 Model Only) ...................................................... 21 5.5 Connecting Diver Umbilical ......................................................................................................... 21 5.6 Low Pressure Supply .................................................................................................................. 21 8225i-UM REV 8.0 i MODEL 8225i & 8225iC-01 USER MANUAL 6. OPERATING PROCEDURES .............................................................................................................. 22 6.1 Low Pressure Breathing Air (Primary Supply) ............................................................................ 22 6.2 High Pressure Breathing Air (Primary Supply) ............................................................................ 22 6.3 Pre-Operation Checklist .............................................................................................................. 22 6.4 Pneumo Readings ....................................................................................................................... 23 6.5 Diver Communications (8225iC-01 Models Only) ....................................................................... 24 6.6 2-Wire Operation (Refer to Figure 3) .......................................................................................... 25 6.7 4-Wire Operation (Refer to Figure 4) .......................................................................................... 25 6.8 Setting the Volume Controls ....................................................................................................... 26 6.9 Diagram, Set-Up Instructions (Figure 3) ..................................................................................... 27 6.10 Diagram, Full Duplex 4-Wire connection (Figure 4) .................................................................... 28 6.11 Full Duplex (4-WIRE) – What, Why and How ............................................................................. 29 7. THEORY OF OPERATION .................................................................................................................. 34 8. MAINTENANCE ................................................................................................................................... 37 8.1 Review of Scheduled Maintenance ............................................................................................. 37 8.2 Air Control Scheduled Maintenance ........................................................................................... 37 8.3 Communicator Maintenance ....................................................................................................... 38 9. TROUBLESHOOTING ......................................................................................................................... 40 9.1 General Information .................................................................................................................... 40 9.2 Air Control ................................................................................................................................... 41 9.3 Depth Monitoring ......................................................................................................................... 43 9.4 Communicator Check Procedures .............................................................................................. 43 9.5 Communicator Troubleshooting .................................................................................................. 45 10. REFERENCE MATERIAL .................................................................................................................... 49 10.1 Diving Log, U.S. Navy (Chart) ..................................................................................................... 49 10.2 Repetitive Dive Worksheet .......................................................................................................... 50 10.3 No Decompression Limits ........................................................................................................... 51 10.4 Gauge Pressure for Depth of Seawater & Fresh water .............................................................. 52 10.5 Equivalent Depths of Seawater & Freshwater ............................................................................ 53 11. DRAWINGS .......................................................................................................................................... 54 11.1 Parts Locator, Model 8225i-200 (Pneumo Front Panel) ............................................................. 55 11.2 Parts Locator, Model 8225i-200 (Pneumo Back Panel) .............................................................. 56 11.3 Parts Locator, Model 8225i-400 (Air Control Front Panel) .......................................................... 57 11.4 Parts Locator, Model 8225i-400 (Air Control Back Panel) .......................................................... 58 11.5 Parts Locator, Model 2825A-04 (Diver Communications) .......................................................... 59 11.6 Parts Locator, Model 873-400-NV (Regulator) ..........................................................................