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CleaverBrooks CBEX Elite User Manual

CleaverBrooks CBEX Elite
134 pages
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Manual Part No. 750-368 11/2013
CBEX Elite
Packaged Boiler
100-1200 HP
Operation and Maintenance

Table of Contents

Questions and Answers:

CleaverBrooks CBEX Elite Specifications

General IconGeneral
BrandCleaverBrooks
ModelCBEX Elite
CategoryBoiler
LanguageEnglish

Summary

Chapter 1 Basics

1.4 Steam Controls and Components

Explains steam controls like pressure gauge, operating limit, and high limit controls.

1.5 Hot Water Controls and Gauges

Details pressure/temperature gauges and controls specific to hot water boilers.

Chapter 2 Burner and Fuel System

2.1 The Burner System

Describes the oil and gas burner types, ignition, and safety controls.

2.3 Gas System Components

Explains the components of the gas flow control system (gas train).

2.4 Oil System Components

Lists components relevant to oil-fired or combination fired boilers.

2.7 Automatic Ignition Sequence

Details the process of automatic ignition using a pilot flame.

Chapter 3 Waterside Care

3.2 Water Requirements

Covers general water requirements for steam and hot water boilers.

3.3 Water Treatment Objectives

Details the goals of water treatment to prevent scale, corrosion, and foaming.

3.4 Cleaning Procedures

Describes cleaning methods for steam/water piping and the pressure vessel.

3.7 Steam Boiler Blowdown

Explains types, frequency, and procedures for steam boiler blowdown.

Chapter 4 Sequence of Operation

4.2 Boiler Circuits and Interlocks

Lists and describes the various electrical circuits and interlock components.

4.3 Firing Rate Controls

Explains the primary subsystems for modulating firing and burner sequencing.

4.4 Sequence of Operation: Gas or Oil

Details the operational sequence for gas or oil firing, including pre-purge.

4.5 Flame Loss Sequence

Describes the sequence of events and safety shutdowns upon flame loss.

Chapter 5 Starting and Operating Instructions

5.1 General Startup Preparation

Covers essential preparations before initial boiler startup for all fuels.

5.2 Control Settings for Steam and Hot Water

Details how to set operating limit and high limit controls for proper function.

5.3 Gas Pilot Adjustment and Checks

Explains how to check and adjust the gas pilot flame for satisfactory performance.

5.5 Firing Preparations for No. 2 Oil

Outlines specific preparations required before firing light oil.

5.6 Firing Preparations for Gas

Details the necessary preparations before firing natural gas.

5.7 Startup, Operation, and Shutdown

Covers the complete process of starting, operating, and shutting down the boiler.

5.8 Control Operational Checks

Describes how to perform operational checks on various boiler controls.

Chapter 6 Adjustment Procedures

6.3 Operating Limit Pressure Control Adjustment

Details how to set the 'cutout' and 'cut-in' pressures for the operating limit control.

6.4 High Limit Pressure Control Adjustment

Explains how to set the high limit pressure control for safety.

6.5 Operating Limit Temperature Control Adjustment

Describes setting the operating limit temperature control for hot water boilers.

6.6 High Limit Temperature Control Adjustment

Details setting the high limit temperature control for hot water boilers.

6.10 Gas Pilot Flame Adjustment

Provides guidance on adjusting the gas pilot flame size and signal.

6.11 Gas Pressure and Flow Information

Covers gas pressure requirements and flow calculations for proper input.

Chapter 7 Troubleshooting

7.1 Problem-Cause Suggestions

Lists common burner problems and their potential causes for diagnosis.

Chapter 8 Inspection and Maintenance

8.1.1 Recommended Boiler Inspection Schedule

Provides a schedule for daily, monthly, semi-annual, and annual inspections.

8.3 Water Level Controls Maintenance

Stresses the critical need to check water level controls and waterside conditions.

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