Aerco Benchmark 2000 User Manual

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Table of Contents

Default Chapter3
- Table of Contents3
Foreword7
Chapter 1. Safety Precautions11
- Warnings & Cautions11
- Emergency Shutdown12
- Prolonged Shutdown12
Chapter 2. Installation15
- Introduction15
- Receiving the Unit15
- Unpacking15
- Site Preparation16
  - Installation Clearances16
  - Setting the Unit17
- Supply and Return Piping19
- Pressure Relief Valve Installation20
- Condensate Drain & Piping21
- Condensate Trap Installation21
- Gas Supply Piping23
- Ac Electrical Power Wiring25
  - Electrical Power Requirements26
- Field Control Wiring27
- Flue Gas Vent Installation31
- Combustion Air32
- Ducted Combustion Air32
- Sequencing Isolation Valve Installation33
Chapter 3. Operation35
- Introduction35
- Control Panel Description35
- Control Panel Menus39
  - Menu Processing Procedure39
- Operating Menu41
- Setup Menu42
- Configuration Menu42
- Tuning Menu45
- Combustion Cal Menu45
- Bst (Boiler Sequencing Technology) Menu46
- Start Sequence48
- Start/Stop Levels52
Chapter 4. Initial Start-Up53
- Initial Start-Up Requirements53
- Tools and Instrumentation for Combustion Calibration53
- Natural Gas Combustion Calibration56
  - BMK 1500 Natural Gas Combustion Calibration56
  - BMK 2000 Natural Gas Combustion Calibration60
- Reassembly62
- Over-Temperature Limit Switches63
  - Digital Alarm Switch Checks and Adjustments63
Chapter 5. Mode of Operation65
- Introduction65
- Indoor/Outdoor Reset Mode65
- Constant Setpoint Mode66
  - Setting the Setpoint67
- Remote Setpoint Modes67
  - Remote Setpoint Field Wiring68
  - Remote Setpoint Startup68
- Direct Drive Modes68
  - Direct Drive Field Wiring69
  - Direct Drive Startup69
- Aerco Control System (Acs)70
  - ACS External Field Wiring70
  - ACS Setup and Startup70
- Combination Control System (Ccs)71
  - Combination Control System Field Wiring72
  - Combination Control System Setup and Startup72
Chapter 6. Safety Device Testing73
- Testing of Safety Devices73
- Low Gas Pressure Test74
- High Gas Pressure Test75
- Low Water Level Fault Test76
- Water Temperature Fault Test76
- Interlock Tests78
  - Remote Interlock Test78
  - Delayed Interlock Test78
- Flame Fault Tests79
- Air Flow Fault Tests81
  - Blower Proof Switch Test81
  - Blocked Inlet Switch Test81
- Ssov Proof of Closure Switch83
- Purge Switch Open During Purge84
- Ignition Switch Open During Ignition85
- Safety Pressure Relief Valve Test86
Chapter 7. Maintenance87
- Maintenance Schedule87
- Igniter-Injector88
- Flame Detector90
- O 2 Sensor91
- Safety Device Testing91
- Burner Assembly Inspection92
- Condensate Drain Trap95
- Air Filter Cleaning & Replacement96
- Water Cutoff (Lwco) Capacitor Integrity Test97
  - Low Water Cutoff (LWCO) - Capacitor Electrical Short Test97
  - Low Water Cutoff (LWCO) - Standard C-More Test99
- Shutting the Boiler down for an Extended Period of Time99
- Placing the Boiler Back in Service after a Prolonged Shutdown100
- Spark Monitor (Ac Current Transducer)100
Chapter 8. Troubleshooting Guide101
- Introduction101
- Additional Faults Without Specific Fault Messages113
Chapter 9. Boiler Sequencing Technology115
- Introduction115
  - Installation Notes116
- Aerco Bst Quick Start Chart117
- Bst Implementation Instruction118
Appendix A: Boiler Menu Item Descriptions131
- Table A-2: Setup Menu Item Descriptions132
- Tuning Menu136
Appendix B: Startup, Status & Display Messages139
Appendix C: Sensor Resistance/Voltage Chart143
Appendix D: Recommended Periodic Testing145
Appendix E: Indoor/Outdoor Reset Ratio Charts147
Appendix F: Dimensional and Clearance Drawings151
Appendix G: Part List Drawings153
Appendix H: Wiring Diagrams165
Appendix I: Piping Drawings173
Appendix J: C-More Control Panel Views179
Appendix K: Recommended Spares181

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Aerco Benchmark 2000 Specifications

General

Brand	Aerco
Model	Benchmark 2000
Category	Boiler
Language	English

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