Aerco Benchmark Series - User Manual

Printed in U.S.A. 06/06/01
GF-107
OMM-0009_0A
Benchmark 2.0 Gas Fired Boiler
USER MANUAL
Used for Serial Numbers G-00-711 thru G-01-095
Benchmark
Series
Gas Fired
Boiler System
Condensing, Modulating
Forced Draft,
Natural Gas Fired, Hot Water Boiler
2,000,000 BTU/H Input

Aerco Benchmark Series Specifications

General

Model	Benchmark Series
Category	Boiler
Manufacturer	Aerco
Vent Material	Stainless Steel
Fuel Type	Natural Gas
Operating Pressure	160 psig
Control System	Aerco Control System
Heat Exchanger Material	Stainless Steel

Summary

Safety Precautions

Warnings and Cautions

General warnings and cautions for safe installation and operation.

Emergency Shutdown

Procedure for shutting down the boiler in an emergency situation.

Installation

Gas and Electrical Supply

Combustion Air and Safety Interlocks

Control Panel Operations

Control Panel Overview and Temperature Controller

Initial Start-Up Procedures

Requirements, Tools, and Calibration

Essential steps, tools, and instrumentation for initial start-up and calibration.

Boiler Operating Modes

Safety Device Testing

General Testing and Gas Pressure Faults

General testing instructions and procedures for gas pressure fault tests.

Water Level, Temperature, and Flame Faults

Procedures for testing water level, temperature, flame, and air pressure faults.

Lockout and Relief Valve Tests

Unit Maintenance

Troubleshooting Common Issues

Gas Pressure and Water Level Faults

Troubleshooting steps for low/high gas pressure and low water level issues.

Temperature, Flame, and Air Pressure Faults

Troubleshooting high temperature, flame loss, and air pressure faults.

Ignition Circuit and Blower Issues

Troubleshooting ignition circuit, spark ignitor, flame detector, and blower problems.

System Faults and Valve Issues

Troubleshooting system faults, interlocks, and air/fuel valve issues.