Name: Aerco Benchmark 1500
Brand: Aerco
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Benchmark 1500 - 2000 Boilers

Installation, Operation & Maintenance Manual (IOMM)

OMM-0097_0D AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 1 of 188

GF-142 Ph.: 800-526-0288

USER MANUAL

Installation, Operation and Maintenance

BENCHMARK

1500 / 2000

Gas-Fired Boilers

Natural Gas Modulating

& Condensing Hot Water

Boiler Models:

• BMK 1500

• BMK 2000

Applicable to Serial Numbers:

G-14-0304 and Above

Latest Update: 03/20/2014

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 Preparation15
  - Installation Clearances16
  - Setting the Unit17
- Supply and Return Piping19
- Pressure Relief Valve Installation19
- Condensate Drain & Piping20
- Condensate Trap Installation21
- Gas Supply Piping22
- Ac Electrical Power Wiring24
  - Electrical Power Requirements25
- Field Control Wiring26
- Flue Gas Vent Installation30
- Combustion Air31
  - Combustion from Outside the Building31
  - Combustion Air from Inside the Building31
- Ducted Combustion Air31
- Sequencing Valve Installation31
Chapter 3. Operation33
- Introduction33
- Control Panel Description33
- Control Panel Menus37
  - Menu Processing Procedure37
- Operating Menu39
- Setup Menu39
- Configuration Menu40
- Tuning Menu42
- Combustion Cal Menu43
- Bst (Boiler Sequencing Technology) Menu43
- Start Sequence46
- Start/Stop Levels50
Chapter 4. Initial Start-Up51
- Initial Start-Up Requirements51
- Tools and Instrumentation for Combustion Calibration51
- Natural Gas Combustion Calibration54
- Reassembly60
- Over-Temperature Limit Switches61
  - Digital Alarm Switch Checks and Adjustments61
Chapter 5. Mode of Operation63
- Introduction63
- Indoor/Outdoor Reset Mode63
- Constant Setpoint Mode64
  - Setting the Setpoint64
- Remote Setpoint Modes65
  - Remote Setpoint Field Wiring65
  - Remote Setpoint Startup66
- Direct Drive Modes66
  - Direct Drive Field Wiring67
  - Direct Drive Startup67
- Aerco Control System (Acs)67
  - ACS External Field Wiring67
  - ACS Setup and Startup68
- Combination Control System (Ccs)68
  - Combination Control System Field Wiring69
  - Combination Control System Setup and Startup69
Chapter 6. Safety Device Testing71
- Testing of Safety Devices71
- Low Gas Pressure Fault Test72
- High Gas Pressure Test73
- Low Water Level Fault Test74
- Water Temperature Fault Test75
- Interlock Tests76
  - Remote Interlock Test76
  - Delayed Interlock Test76
- Flame Fault Tests77
- Air Flow Fault Tests79
  - Blower Proof Switch Test79
  - Blocked Inlet Switch Test79
- Ssov Proof of Closure Switch81
- Purge Switch Open During Purge82
- Ignition Switch Open During Ignition83
- Safety Pressure Relief Valve Test84
Chapter 7. Maintenance85
- Maintenance Schedule85
- Igniter-Injector86
- Flame Detector88
- O 2 Sensor89
- Safety Device Testing89
- Burner Assembly Inspection90
- Condensate Drain Trap94
- Air Filter Cleaning & Replacement95
- Shutting the Boiler down for an Extended Period of Time96
- Placing the Boiler Back in Service after a Prolonged Shutdown96
Chapter 8. Troubleshooting Guide97
- Introduction97
- Additional Faults Without Specific Fault Messages109
Chapter 9. Rs-232 Communication111
- Introduction111
- Communication Setup113
- Menu Processing Utilizing Rs-232 Communication113
- Data Logging114
Chapter 10. Boiler Sequencing Technology117
- Introduction117
- Aerco Bst Quick Start Chart118
- Bst Implementation Instruction119
Appendix A: Boiler Menu Item Descriptions131
Appendix B: Startup, Status & Display Messages137
Appendix C: Sensor Resistance/Voltage Chart141
Appendix D: Boiler Default Settings143
Appendix E: Recommended Periodic Testing145
Appendix F: Indoor/Outdoor Reset Ratio Charts147
Appendix G: Dimensional and Clearance Drawings151
Appendix H: Part Drawings155
Appendix I: Wiring Diagrams167
Appendix J: Piping Drawings175
Appendix K: C-More Control Panel Views181
Appendix L: Recommended Spares183

Aerco Benchmark 1500 User Manual

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Aerco Benchmark 1500 Specifications

Related product manuals

Brand	Aerco
Model	Benchmark 1500
Category	Boiler
Language	English