• Chapter 1 Introduction
• Preparation For Storage Or Shipment
• Purpose, Capabilities, And Features
• Figure 1-2. Location Of Major Components
• Purpose, Capabilities, And Features Cont.
• Performance Data
• Section Ill Technical Principles Of Operation
• Figure 1-3. Refrigeration Schematic
• Heating
• Chapter 2 Operating Instructions Section I Description And Use Of Operator’s Controls And Indicators
• Figure 2-1. Operator’s Controls Front
• Figure 2-2. Operator’s Controls Rear
• Indicators
• Section Ii Operator Preventive Maintenance Checks And Services (Pmcs)
• Table 2-1. Operator Preventive Maintenance Checks And Services
• Table 2-1. Operator Preventive Maintenance Checks And Services (Cont.)
• Table 2-1. Operator Preventive Maintenance Checks And Services (Cont.)
• Table 2-1. Operator Preventive Maintenance Checks And Services (Cont.)
• Table 2-1. Operator Preventive Maintenance Checks And Services (Cont.)
• Table 2-1. Operator Preventive Maintenance Checks And Services (Cont.)
• Table 2-1. Operator Preventive Maintenance Checks And Services (Cont.)
• Table 2-1. Operator Preventive Maintenance Checks And Services (Cont.)
• Table 2-1. Operator Preventive Maintenance Checks And Services (Cont.)
• Section Ill Operation Under Usual Conditions
• Figure 2-3. Fabric Cover
• General Operating Procedures Cont.
• Figure 2-4. Openings And Drains
• Table 2-2. Operator Control Settings
• Operation In Ventilate Mode (No Heating Or Cooling Needed
• Operation In Lo Heat Mode
• Figure 2-8. Lo Heat Control Setting
• Figure 2-9. Fresh Air Damper (Door) Adjustment
• Operation In Hi Heat Mode
• Figure 2-13. Louver Adjustment
• Figure 2-14. Fabric Cover
• Operation In Cool Mode
• Figure 2-17. Fresh Air Damper (Door) Adjustment
• Shutdown (Off)
• Preparation For Movement
• Figure 2-20. Information Plates, Front
• Figure 2-21. Information Plates, Rear
• Section Iv Operating Under Unusual Conditions
• Operation In Dusty Or Sandy Conditions
• Operation In Salt Air Or Sea Spray
• Operation Under Emergency Conditions
• CHAPTER 3 OPERATOR’S MAINTENANCE INSTRUCTIONS SECTION I LUBRICATION INSTRUCTIONs
• Section Ii Troubleshooting Procedures
• Table 3-1. Troubleshooting (Cont.)
• Table 3-1. Troubleshooting (Cont.)
• Table 3-1. Troubleshooting (Cont.)
• Table 3-1. Troubleshooting (Cont.)
• Table 3-1. Troubleshooting (Cont.)
• Table 3-1. Troubleshooting (Cont.)
• Table 3-1. Troubleshooting (Cont.)
• Table 3-1. Troubleshooting (Cont.)
• Table 3-1. Troubleshooting (Cont.)
• Table 3-1. Troubleshooting (Cont.)
• Table 3-1. Troubleshooting (Cont.)
• Chapter 4 Organizational Maintenance Instructions
• Section Ii Service Upon Receipt Of Equipment
• Figure 4-1. Unpacking
• Installation Site Preparation
• Figure 4-2. Installation Dimensions
• Figure 4-2. Installation Dimensions Cont.
• Air Conditioner Preparation For Installation
• Alternate Input Power Cable Connector (J1 Locations)
• Figure 4-4. Cover Plate Removal/Lnstallation
• Figure 4-5. Receptacle (Jl)
• Installations That Require Removal Of Fabric Cover
• Figure 4-6. Fabric Cover Removal
• Installation Instructions
• Section Ill Preventive Maintenance Checks And Services (Pmcs)
• Ffigure 4-7 Wiring Diagram (Sheet 1 Of 2)
• Ffigure 4-7 Wiring Diagram (Sheet 1 Of 2)
• Figure 4–8. Electrical Schematic
• Table 4-1. Organizatlonal Preventive Maintenance Checks And Services (Pmcs)
• Table 4-1. Organizational Preventive Maintenance Checks And Services (Pmcs) (Cont.)
• Table 4-1. Organizational Preventive Maintenance Checks And Services (Pmcs) (Cont.)
• Table 4-1. Organizational Preventive Maintenance Checks And Services (Pmcs) (Cont.)
• Table 4-1. Organizational Preventive Maintenance Checks And Services (Pmcs) (Cont.)
• Table 4-1. Organizational Preventive Maintenance Checks And Services (Pmcs) (Cont.)
• Table 4-1. Organizational Preventive Maintenance Checks And Services (Pmcs) (Cont.)
• Table 4-1. Organizational Preventive Maintenance Checks And Services (Pmcs) (Cont.)
• Table 4-1. Organizational Preventive Maintenance Checks And Services (Pmcs) (Cont.)
• Table 4-1. Organizational Preventive Checks And Services (Pmcs) D - Daily W - Weekly Maintenance (Cont.)
• Table 4-1. Organizational Preventive Maintenance Checks And Services (Pmcs) (Cont.)
• Table 4-1. Organizational Preventive Maintenance Checks And Services (Pmcs) (Cont.)
• Table 4-1. Organizational Preventive Maintenance Checks And Services (Pmcs) (Cont.)
• Section Iv Troubleshooting
• Table 4-2. Troubleshooting
• Table 4-2. Troubleshooting (Cont.)
• Table 4-2. Troubleshooting (Cont.)
• Table 4-2. Troubleshooting (Cont.)
• Table 4-2. Troubleshooting (Cont.)
• Table 4-2. Troubleshooting (Cont.)
• Table 4-2. Troubleshooting (Cont.)
• Table 4-2. Troubleshooting (Cont.)
• Table 4-2. Troubleshooting (Cont.)
• Table 4-2. Troubleshooting (Cont.)
• Table 4-2. Troubleshooting (Cont.)
• Table 4-2. Troubleshooting (Cont.)
• Table 4-2. Troubleshooting (Cont.)
• Table 4-2. Troubleshooting (Cont.)
• Table 4-2. Troubleshooting (Cont.)
• Table 4-2. Troubleshooting (Cont.)
• Table 4-2. Troubleshooting (Cont.)
• Table 4-2. Troubleshooting (Cont.)
• Section V Maintenance
• Air Conditioner (Fabric) Cover
• Air Conditioner (Fabric) Cover Cont.
• Cbr (Chemical, Biological, Radiological) Duct Cover
• Access (Charging Valves) Cover
• Connector Cover Plates
• Circuit Breaker Access Plate
• Evaporator Air Discharge (Outlet) Grille Assembly
• Figure 4-14. Evaporator Discharge (Outlet) Grille Assembly
• Evaporator Air Intake Grille Assembly
• Evaporator Air Intake Grille Assembly Cont.
• Figure 4-16. Condenser Air Discharge Guard
• Condenser Coil Guard
• Fresh Air (Inlet) Screen
• Top Panel
• Lower Panel
• Conditioned Air Filter
• Conditioned Air Filter Cont.
• Mist Eliminator
• Electrical Wiring Repair General
• Junction Box
• Figure 4-23. Lower Panel
• Figure 4-24. Junction Box Removal/Installation
• Figure 4-25. Reset Control
• Figure 4-26. Transformer (T)
• Transformer(T)
• Capacitor Assembly (C3)
• Compressor Circuit Breaker
• Compressor Circuit Breaker Cont.
• Figure 4-28. Circuit Breaker (Cb)
• Figure 4-29. Fuses (F1 And F2)
• Fuses (F1 And F2)
• Rectifier (Cr)
• Figure 4-30. Rectifier (Cr)
• Time Delay Relay (K6)
• Figure 4-31. Time Delay Relay (K6)
• Compressor Relay (K9)
• Figure 4-32. Time Delay Relay (K9)
• Compressor Relay (Kl)
• Compressor Relay (Kl) Cont.
• Figure 4-33. Compressor Relay (K1)
• Heater Relay (K2)
• Figure 4-34. Heater Relay (K2)
• Junction Box Wiring Harnesses
• Terminal Boards (Tb1 And Tb2)
• Figure 4-36. Terminal Boards (Tb1 And Tb2)
• Junction Box Housing And Cover
• Circuit Breaker External Reset Control
• Wiring Harnesses
• Figure 4-39. Wiring Harness
• Wiring Harnesses Cont.
• Table 4-3. Wire List
• Table 4-3. Wire List (Cont.)
• Table 4-3. Wire List (Cont.)
• Table 4-3. Wire List (Cont.)
• Figure 4-40. Control Panel
• Wire Harness, Control Panel
• Figure 4-41. Wiring Harness, Control Panel
• Wire Harness, Control Panel Cont.
• Temperature Control Thermostat (S1)
• Temperature Control Thermostat (S1) Cont.
• Temperature Control Thermostat (S1) Cont.
• Mode Selector (Rotary) Switch (S)
• Figure 4-44. Switch Position And Terminal Location
• Mode Selector (Rotary) Switch (S) Cont.
• Two-Speed Fan (Toggle) Switch (S7)
• Two-Speed Fan (Toggle) Switch (S7) Cont.
• Control Panel Housing
• Compressor Motor Start Capacitor (C4)
• Figure 4-47. Compressor Motor Start Capacitor
• Fan Motor Capacitor (C1)
• Fan Motor Capacitor (C1) Cont.
• Figure 4-48. Fan Motor
• Compressor Motor Run Capacitor (C2)
• Compressor Motor Run Capacitor (C2) Cont.
• Figure 4-49. Compressor C. Removal Motor Run Capacitor (C2)
• Armature Relay (K10)
• Figure 4-50. Armature Relay (K10)
• Fan Relay (K7)
• Figure 4-51. Fan Relay (K7)
• Fan Relay (K7) Cont.
• Amblent Air Thermostat (S2)
• Figure 4-53. Ambient Air Thermostat
• Heater Cutout (Thermostat) Switch (S3)
• Figure 4-54. Heater Cutout (Thermostat) Switch (S3)
• Electric Heater (Elements) (Hr1 Thru Hr6) And Support
• Figure 4-55. Electric Heater (Elements) (Hr1 Thru Hr6)
• Figure 4-56. Heater Support
• Evaporator Fan
• Figure 4-57. Evaporator Fan
• Evaporator Fan Cont.
• Figure 4-58. Condenser Fan
• Evaporator And Condenser Fan Motor (B2)
• Figure 4-59. Evaporator And Condenser Fan Motor
• Evaporator And Condenser Fan Motor (B2) Cont.
• Evaporator Coil Cleaning
• Figure 4-60. Evaporator Coil
• Condenser Coil Cleaning
• Condensate Traps
• Figure 4-62. Condensate Traps
• Condensate Traps Cont.
• Condensate Traps Cont.
• Section Vi Preparation For Storage Or Shipment
• Chapter 5 Maintenance Tm5-4120-387-14 Instructions Section I Repair Parts, Special Tools, Tmde, And Support Equipment
• Outside Covers, Panels, Grilles, Screens, Guards, And Information Plates
• Evaporator And Condenser Fan Motor (B2) Repair
• Figure 5-1. Evaporator And Condenser Fan Motor (For Model 3770 Only)
• Figure 5-1.1. Evaporator And Condenser Fan Motor (For Model 3873 Only)
• Evaporator And Condenser Fan Motor (B2) Repair Cont.
• Refrigeration System Repairs General
• Discharging The Refrigerant System
• Figure 5-3. Discharging Refrigerant
• Purging The Refrigerant System
• Figure 5-4. Nitrogen Purging Connection
• Brazing/Debrazing Procedures
• Brazing/Debrazing Procedures Cont.
• Leak Testing The Refrigerant System
• Leak Testing The Refrigerant System Cont.
• Evacuating The Refrigerant System
• Evacuating The Refrigerant System Cont.
• Figure 5-6. Refrigerant Charging
• Evacuating The Refrigerant System Cont.
• Evacuating The Refrigerant System Cont.
• Refrigerant Pressure Check
• Figure 5-9. Pressure Test Connection
• Refrigerant Pressure Check Cont.
• Refrigerant Pressure Check Cont.
• Refrigerant Pressure Check Cont.
• Table 5-1. Pressure-Temperature Relationship Of Saturated Refrigerant -22
• Table 5-2. Normal Operating Pressures (In Full Cooling Decrease Mode)
• Desiccant Refrigerant Dehydrator (Filter Drier)
• Low Pressure Cut-Out Switch (S6)
• Figure 5-11. Low Pressure Cul-Out Switch (S6)
• Low Pressure Cut-Out Switch (S6) Cont.
• High Pressure Cut-Out Switch (S5)
• High Pressure Cut-Out Switch (S5) Cont.
• Fan Speed Pressure Control Switch (Sb)
• Figure 5-13. Fan Speed Pressure Control Switch
• Fan Speed Pressure Control Switch (Sb) Cont.
• Charging Valves
• Figure 5-14. Charging Valves
• Solenoid Valves (L1 And L2) Test And Coil Replacement
• Solenoid Valves (L1 And L2) Test And Coil Replacement Cont.
• Figure 5-15. Solenoid Valve Coil Replacement
• Solenoid Valves(L1 And L2)
• Figure 5-16. Solenoid Valves (L1 And L2)
• Liquid Quench Expansion Valve (V4)
• Figure 5-17. Liquid Quench Expansion Valve
• Liquid Quench Expansion Valve (V4) Cont.
• Liquid Quench Expansion Valve (V4) Cont.
• Compressor(B1)
• Compressor(B1) Cont.
• Figure 5-19. Compressor Replaceable Items
• 5-19.1. Compressor Replaceable Items (For Model 3873 Only)
• Compressor(B1) Cont.
• Figure 5-20. Compressor
• Figure 5-20 Compressor (B1) (For Model 3873 Only)
• Compressor Motor Burnout
• Compressor Installation
• Liquid Sight Indicator (Sight Glass)
• Figure 5-21. Liquid Sight Indicator (Sight Glass)
• Liquid Sight Indicator (Sight Glass) Cont.
• Expansion Valve
• Expansion Valve Cont.
• Expansion Valve Cont.
• Expansion Valve Cont.
• Evaporator Coil
• Figure 5-23. Evaporator Coil
• Evaporator Coil Cont.
• Fluid Pressure Regulating Valve (V2)
• Figure 5-24. Fluid Pressure Regulating Valve
• Fluid Pressure Regulating Valve (V2) Cont.
• Figure 5-25. Receiver
• Fluid Pressure Regulating Valve (V2) Cont.
• Pressure Relief Valve
• Condenser Coil
• Tubing And Fittings
• Insulation, Casing
• Insulation, Casing Cont.
• Fresh Air Damper
• Fresh Air Damper Cont.
• Chapter 6 General Support Maintenance Instructions
• Lifting Handles
• Appendix A References
• Appendix B Maintenance Allocation Chart
• Maintenance Functions
• Explanation Of Columns In The Mac, Section Ii
• Explanation Of Columns In Tool And Test Equipment Requirements, Section Ill
• Appendix B Section Ii Maintenance Allocation Chart For Air Conditioner
• Appendix B Section Ii Maintenance Allocation Chart For Air Conditioner
• Appendix B Section Ii Maintenance Allocation Chart For Air Conditioner Cont.
• Appendix B Section Ii Maintenance Allocation Chart For Air Conditioner Cont.
• Appendix B Section Ii Maintenance Allocation Chart For Air Conditioner Cont.
• Sectim Iii Tool And Test Equipment Requirements Maintenance Allocation Chart
• Section Iv Remarks Maintenance Allocation Chart
• Appendix C Item And Basic Issue Items Lists Section I. Introduction
• Figure C-1. Components Of End Item
• Section Ii Components Of End Items (Cont.)
• Section Ill Basic Issue Items
• Appendix D Additional Authorization List Section I Introduction
• Section Ii Additional Authorization List
• Appendix E Expendable Supplies And Materials List Section I Introduction
• Section Ii Expendable Supplies And Materials List
• Expendable Supplies And Materials List
• Alphabetical Index
• Alphabetical Index (Cont.]
• Alphabetical Index (Cont.)
• Alphabetical Index (Cont.)
• Alphabetical Index (Cont.)
• Alphabetical Index (Cont.)
• Alphabetical Index (Cont.)
• Glossary
• The Metric System And Equivalents

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