Name: Aerco Esteem 399
Brand: Aerco
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Instruction

No.

AERCO INTERNATIONAL, Inc. Northvale, New Jersey, 07647 USA

Installation and Maintenance

Manual

Esteem 399

Low NOx

Gas Fired

Boiler

Visit www.aerco.com to View the Latest

Product Manuals and Information.

Printed in U.S.A. REVISED MAY 2010

GF-125

OMM-0048_0A

Default Chapter3
- Table of Contents3
Chapter 1 Warnings and Cautions7
- Emergency Shutdown8
- Prolonged Shutdown8
- If You Smell Gas9
Chapter 2 Pre-Installation Items10
- Code Compliance10
- Determining Product Location10
- Boiler Replacement11
- Recommended Clearances11
- Boiler Freeze Protection Feature11
- Residential Garage Installations12
Chapter 3 Combustion Air and Venting13
- Combustion Air Contamination13
- Potential Contaminating Products13
- Areas Likely to Have Contaminants13
- Ventilation and Combustion Air Requirements - Direct Vent14
- Ventilation and Combustion Air Requirements - Category IV14
- Combustion Air and Vent Piping17
- Removal of an Existing Boiler from a Common Vent System17
- Commonwealth of Massachusetts Installations Only19
Chapter 4 Unit Preparations20
- Unit Preparations20
- Boiler Mounting21
- Boiler Piping22
Chapter 5 Boiler Piping22
- Additional Limit Control23
- Backflow Preventer23
- Boiler System Piping Applications23
- Expansion Tank and Makeup Water24
  - Diaphragm Expansion Tank24
  - Closed-Type Expansion Tank24
- Circulator24
- Sizing Primary Piping24
- Domestic Hot Water System Piping25
- System Piping - Zone Circulators25
- System Piping - Zone Valves25
- System Piping - through Boiler25
- System Piping - Radiant Heating25
- System Piping - Special Application26
- System Piping - Multiple Units Installation26
Chapter 6 Installing Vent, Air Intake & Drain33
- Installing Vent and Combustion Air Intake33
- Installing Condensate Drain Assembly33
Chapter 7 Gas Piping35
- Natural Gas36
  - Pipe Sizing - Natural Gas36
  - Natural Gas Supply Pressure Requirements36
- Propane Gas37
  - Pipe Sizing - Propane Gas38
  - Propane Gas Supply Pressure Requirements38
- Gas Piping35
  - Gas Supply Piping Connection35
Chapter 8 Internal Wiring39
- Internal Wiring Diagram40
- Internal Wiring39
Chapter 9 External Wiring41
- CH and DHW Circulator42
- System Circulator - Zone Valve Application42
- External Modulating Control42
- Outdoor Reset Control42
- Additional 24V Limit Wiring42
- External Wiring Diagram43
- External Wiring41
Chapter 10 Start-Up Preparation45
- Filling the Boiler System46
- Check Low Water Cut-Off Device46
- Check for Gas Leaks46
- Check Thermostat Circuit47
- Inspect the Condensate Drain Assembly47
- Start-Up Preparation45
Chapter 11 Start-Up Procedures48
- First Run Check of the Unit and System49
- Set Boiler CH Set Point50
- Operation Verification - Space Heating50
- Operation Verification - Domestic Hot Water52
- Start-Up Procedures48
Chapter 12 Operating Instructions53
- Operation54
- To Turn off Gas to Appliance54
- Boiler Control Display55
- Operating Instructions53
  - Safety53
Chapter 13 Outdoor Reset Control60
- Mounting the Outdoor Sensor60
- Wiring the Sensor60
- Summer / Winter Switch at Boiler60
- Adjusting Outdoor Reset Curve61
- Entering MCBA Access Code62
Chapter 14 External Modulating Control64
- Wiring the Modulating Controller64
- Parameter Adjustment64
- Programming of External Modulating Control64
- Factory Parameter Settings65
Chapter 15 Check-Out Procedures66
- Check-Out Procedures66
Chapter 16 Installation Record67
Chapter 17 Maintenance Schedule68
- Maintenance Schedule68
  - Professional Maintenance68
  - Owner Maintenance68
Chapter 18 Maintenance Procedures69
- Clean Condensate Drain Assembly70
- Check Ventilation Air Openings70
- Inspect Vent and Combustion Air Piping70
- Check Boiler System70
- Check Expansion Tank71
- Check Boiler Relief Valve71
- Inspect Ignition Electrode71
- Check Ignition Wiring and Ground Wiring72
- Check Control Wiring72
- Check Control Settings72
- Check Burner Flame72
- Check Flame Signal73
- Check Combustion Levels73
- Check Flue Gas Temperature73
- Clean Heat Exchanger73
- Start-Up and Checkout Procedures74
- Review with Owner74
- Maintenance Procedures69
Chapter 19 Troubleshooting75
- Introduction75
- Control Module Fuses76
- Soft Lockout Error Codes80
- Hard Lockout Codes84
Appendices91
- Appendix A: Replacement Parts91
  - Insulation Handling92
- Appendix B: Unit Specifications94
- Appendix C: Pressure Drop Comparison Tables97

Aerco Esteem 399 Installation And Maintenance Manual

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Brand	Aerco
Model	Esteem 399
Category	Boiler
Language	English