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Aerco Benchmark 1.5LN User Manual

Aerco Benchmark 1.5LN
163 pages
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PR1: 10/18//12 AERCO International Inc. 100 Oritani Dr. Blauvelt, NY 10913 Ph: 800-526-0288 Page 1 of 166
Benchmark 1.5LN Low NOx Boiler
Installation, Operation and Maintenance Manual
OMM-0041_0E
GF-120
USER MANUAL
Modulating, Condensing,
Forced Draft, Hot Water Boiler
1,500,000 BTU/H Input
Applicable for Serial Numbers:
G-12-1953 and above.
Revised: 10/18/2012
Benchmark 1.5LN Low NOx Boiler
Installation, Operation, and Maintenance
Benchmark 1.5LN
Low NOx Boiler

Table of Contents

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Aerco Benchmark 1.5LN Specifications

General IconGeneral
BrandAerco
ModelBenchmark 1.5LN
CategoryBoiler
LanguageEnglish

Summary

Safety Precautions

Warnings and Cautions

General warnings and cautions for safe installation and operation.

Emergency Shutdown Procedure

Procedure for safely shutting down the boiler in an emergency.

Installation Procedures

Receiving and Unpacking the Unit

Procedures for inspecting and unpacking the boiler upon delivery.

Site Preparation and Clearances

Requirements for selecting installation location and maintaining clearances.

Piping and Drainage Connections

Details on connecting water supply/return and condensate drain lines.

Gas Supply Piping and Components

Specifications and requirements for natural gas supply piping installation.

Electrical Power Wiring

Guidelines for connecting AC electrical power to the boiler unit.

Control Panel Operation

Initial Start-Up

Initial Start-Up Requirements

Prerequisites and steps for successfully starting up the boiler for the first time.

Tools and Calibration Setup

Necessary tools and how to install them for combustion calibration.

RSI Regulator Safe Test

Procedure for safety testing the Regulated Staged Ignition (RSI) regulator.

Natural Gas Combustion Calibration

Step-by-step guide to calibrating combustion for optimal performance.

Mode of Operation

Safety Device Testing

Testing of Safety Devices

General guidance on testing safety devices for proper operation.

Gas Pressure Safety Tests

Procedures for testing low and high gas pressure fault conditions.

Water Level and Temperature Safety Tests

Testing low water level and high water temperature fault conditions.

Interlock and Flame Fault Tests

Testing interlock circuits and simulating flame faults for safety.

Air Flow and Switch Tests

Testing air flow switches, SSOV proof of closure, and other operational switches.

Safety Pressure Relief Valve Test

Procedure for testing the safety pressure relief valve.

Maintenance Procedures

Maintenance Schedule

Recommended schedule for routine maintenance tasks.

Igniter-Injector and Flame Detector Maintenance

Procedures for inspecting and replacing the igniter-injector and flame detector.

Combustion Calibration and RSI Regulator Adjustment

Checking combustion calibration and adjusting the RSI regulator.

Troubleshooting Guide

Troubleshooting Tables

Detailed tables listing faults, probable causes, and corrective actions.

Appendix B: Startup, Status and Fault Messages

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