CONTENTS
GF-123 - AERCO BENCHMARK 2.0LN GAS FIRED LOW NOx BOILER
Operating & Maintenance Instructions
FOREWORD A
Chapter 1 – SAFETY PRECAUTIONS 1-1
Para. Subject Page
1-1 Warnings & Cautions 1-1
1-2 Emergency Shutdown 1-2
Para. Subject Page
1-3 Prolonged Shutdown 1-2
Chapter 2 – INSTALLATION 2-1
Para. Subject Page
2.1 Introduction 2-1
2.2 Receiving the Unit 2-1
2.3 Unpacking 2-1
2.4 Site Preparation 2-1
2.5 Supply and Return Piping 2-3
2.6 Condensate Drain and Piping 2-3
2.7 Gas Supply Piping 2-4
2.8 AC Electrical Power Wiring 2-5
Para. Subject Page
2.9 Modes of Operation and Field
Control Wiring
2-6
2.10 I/O Box Connections 2-8
2.11 Auxiliary Relay Contacts 2-10
2.12 Flue Gas Vent Installation 2-10
2.13 Combustion Air 2-10
Chapter 3 – CONTROL PANEL OPERATING PROCEDURES 3-1
Para. Subject Page
3.1 Introduction 3-1
3.2 Control Panel Description 3-1
3.3 Control Panel Menus 3-4
3.4 Operating Menu 3-5
3.5 Setup Menu 3-5
Para. Subject Page
3.6 Configuration Menu 3-6
3.7 Tuning Menu 3-8
3.8 Combustion Cal. Menu 3-8
3.8 Start Sequence 3-8
3.9 Start/Stop Levels 3-10
Chapter 4 – INITIAL START-UP 4-1
Para. Subject Page
4.1 Initial Startup Requirements 4-1
4.2 Tools and Instruments for
Combustion Calibration
4-1
4.3 Natural Gas Combustion
Calibration
4-2
Para. Subject Page
4.4 Propane Combustion Calibration
4-6
4.5 Unit Reassembly 4-8
4.6 Over-Temperature Limit
Switches
4-9
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