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CleaverBrooks 4WI - User Manual

CleaverBrooks 4WI
216 pages
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Model 4WI
Operation, Service, and Parts Manual
750-211
12/09
Promethean Boilers
100 to 800 HP Steam and Hot Water
Fuel: Light Oil, Gas or Combination

Table of Contents

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CleaverBrooks 4WI Specifications

General IconGeneral
CategoryBoiler
Boiler TypeFiretube
Fuel TypeNatural Gas
Operating PressureUp to 300 PSIG
Control SystemHawk Integrated Control System

Summary

CHAPTER 1 Firetube Operation Basics

1.1 - Overview

General introduction to firetube boilers and their applications.

1.2 - The Boiler

Description of the Promethean boiler's construction and components.

1.3 - Construction

Details on boiler construction standards and compliance with ASME codes.

1.4 - Steam Controls (All Fuels)

Explanation of essential pressure and safety controls for steam boilers.

1.5 - Hot Water Controls (All Fuels)

Explanation of essential temperature and safety controls for hot water boilers.

1.6 - IFGR Components

Description of Induced Flue Gas Recirculation (IFGR) system components.

CHAPTER 2 Burner Operation and Control

2.1 - The Burner

Details on the oil and gas burner types and their operation.

2.2 - Controls Common to all Boilers

Overview of standard controls and indicator lights found on all boilers.

2.3 - Control and Component Function

Explanation of the function of various control components.

2.4 - Components Common to all Boilers

Identification and function of common boiler components.

2.5 - Controls for Gas Firing

Specific controls and components related to gas fuel systems.

2.6 - Controls Common to Oil-Fired Boilers (Including Combination)

Controls applicable to oil-fired and combination fuel boilers.

2.7 - Additional Controls for Heavy Oil

Specific controls required for heavy oil firing systems.

2.8 - Controls for Combination Burners Only

Controls specific to burners designed for dual fuel operation.

2.9 - Combustion Air

Details on the supply and control of combustion air for efficient burning.

2.10 - Automatic Ignition

Explanation of the automatic ignition process for the burner.

2.11 - Atomizing Air

Information on the primary air system for atomizing fuel oil.

2.12 - Oil Fuel Flow: Light Oil

Diagram and description of light oil fuel flow system.

2.13 - Oil Fuel Flow: Heavy Oil

Diagram and description of heavy oil fuel flow and circulation system.

2.14 - Gas Fuel Flow

Description of the metered gas flow through the burner system.

2.15 - Modulating Firing

Explanation of how the modulating motor controls firing rate and air/fuel ratios.

CHAPTER 3 Waterside Care and Requirements

3.1 - Overview

Introduction to water supply and treatment importance for boiler life.

3.2 - Water Requirements

General water requirements for steam and hot water boilers.

3.2.1 - Hot Water Boilers

Specific water requirements for hot water boilers, including air removal and temperature.

3.2.1.4 - Continuous Flow Through the Boiler

Ensuring continuous water circulation through the boiler for proper operation.

3.2.1.5 - Water Circulation

The Maximum Circulating Rate Chart for boiler water circulation.

3.2.1.6 - Multiple Boiler Installations

Ensuring adequate and proportional flow in multiple boiler systems.

3.2.1.7 - Pump Location

Recommendations for circulating pump placement.

3.2.1.8 - Pump Operation

Guidelines for starting and stopping circulating pumps.

3.2.1.9 - Pressure

Maintaining proper system pressure-to-temperature relationship for boiler surfaces.

3.2.2 - Steam Boiler

Specific procedures for steam boiler operation and maintenance.

3.2.2.1 - Feed Pump Operation

Procedures for operating the feed pump and ensuring correct rotation.

3.3 - Water Treatment

Importance of water treatment for boiler effectiveness and longevity.

3.4 - Cleaning

Procedures for cleaning boiler components.

3.4.1 - Hot Water and Steam Piping

Procedures for cleaning steam and water piping to prevent damage.

3.4.2 - Pressure Vessel

Maintaining cleanliness of the pressure vessel waterside for efficient operation.

3.5 - Boil-Out of a New Unit

Procedure for removing manufacturing coatings from new boiler internal surfaces.

3.7 - Blowdown: Steam Boiler

Removal of concentrated boiler water to lower dissolved solids.

3.7.1 - Types of Blowdown

Explanation of intermittent manual and continuous blowdown.

3.7.2 - Frequency of Manual Blowdown

Guidelines for manual blowdown frequency based on water conditions.

3.7.3 - Manual Blowdown Procedure

Step-by-step procedure for performing manual boiler blowdown.

3.8 - Periodic Inspection

Requirements for periodic inspections by authorized inspectors.

3.9 - Preparation for Extended Layup

Methods for preparing boilers for extended periods of non-use.

CHAPTER 4 Sequence of Operation

4.1 - Overview

Chapter outlines electrical sequencing of burner cycles: pre-purge, ignition, run, shutdown.

4.2 - Circuit and Interlock Controls

Description of the burner control circuit and its components.

4.3 - Sequence of Operation: Gas or Oil

Detailed sequence of operation for gas or oil firing cycles.

4.3.1 - Pre-Purge Cycle

Description of the pre-purge cycle for burner startup.

4.3.2 - Ignition Cycle

Process of pilot ignition, flame establishment, and main flame ignition.

4.3.3 - Run Cycle

Operation of the burner after main flame establishment.

4.3.4 - Burner Shutdown: Post-Purge

Sequence of events during burner shutdown and post-purge cycle.

4.4 - Flame Loss Sequence

Procedure for burner shutdown and lockout due to flame failure.

CHAPTER 5 Starting and Operating Instructions

5.1 - General Preparation for Startup: All Fuels

Pre-startup checks and preparations for all fuel types.

5.2 - Control Settings: Steam and Hot Water

Instructions for setting operating, high limit, and modulating controls.

5.3 - Gas Pilot

Checking gas pilot performance and adjustment prior to firing.

5.4 - Atomizing Air

Checking atomizing air supply and pressure for oil-fired burners.

5.5 - Firing Preparations for No. 2 Oil (Series 100-200)

Steps for establishing oil flow and pressure before firing No. 2 oil.

5.6 - Firing Preparation for No. 6 Oil (Series 400-600)

Steps for establishing oil flow, pressure, and temperature for No. 6 oil.

5.6.1 - Oil Flow

Establishing and verifying oil flow for heavy oil systems.

5.6.2 - Oil Pressure

Adjusting oil pressure regulators for heavy oil firing.

5.6.3 - Oil Temperature

Setting oil heater thermostats to maintain proper oil temperature.

5.7 - Firing Preparations for Gas (Series 200-400-700)

Pre-firing checks for gas burners, including linkage and gas supply.

5.8 - Induced Flue Gas Recirculation (IFGR) Setup

Initial setup and adjustment procedures for IFGR system components.

5.9 - Startup, Operating, and Shutdown: All Fuels

General procedures for starting, operating, and shutting down the burner.

5.10 - Control Operational Test and Checks

Verification and testing of control systems during initial service and maintenance.

CHAPTER 6 Adjustment Procedures

6.1 - Overview

Introduction to burner adjustments for efficient operation and economy.

6.2 - Linkage: Modulating Motor and Air Damper

Adjusting linkage for coordinated movement of damper and metering cams.

6.4 - Modulating Motor Switches: Low-Fire and High-Fire

Adjustment of internal switches on modulating motors.

6.5 - Burner Operating Controls: General

Overview of operating limit, high limit, and modulating controls.

6.6 - Firing Graph Explanation

Explanation of the firing graph showing control relationships.

6.6 - Modulating Pressure Control: Steam

Adjusting modulating pressure control for steam boilers.

6.7 - Operating Limit Pressure Control: Steam

Setting operating limit pressure controls for steam boilers.

6.8 - High Limit Pressure Control: Steam

Setting high limit pressure controls for steam boilers.

6.9 - Modulating Temperature Control: Hot Water

Adjusting modulating temperature controls for hot water boilers.

6.10 - High Limit Temperature Control: Hot Water

Setting high limit temperature controls for hot water boilers.

6.11 - Operating Limit Temperature Control: Hot Water

Setting operating limit temperature controls for hot water boilers.

6.12 - Low Water Cutoff Devices Adjustment

Note that low water cutoff devices require no adjustment.

6.13 - Combustion Air Proving Switch Adjustment

Adjusting the combustion air proving switch for proper operation.

6.14 - Atomizing Air Proving Switch Adjustment

Adjusting the atomizing air proving switch for oil firing.

6.15 - Gas Pilot Flame Adjustment

Adjusting gas pilot flame size for proper ignition.

6.16 - Gas Pressure and Flow Information

Regulating gas pressure for optimal combustion efficiency.

6.17 - Gas Fuel Combustion Adjustment

Adjusting air/fuel ratios using a combustion analyzer for efficient combustion.

6.21 - Fuel Oil Combustion Adjustment

Adjusting air/fuel ratios for efficient combustion of fuel oil.

6.21.1 - Standard Burner Low-Fire Adjustment 100-200 HP

Adjusting fuel input for low-fire on 100-200 HP burners.

6.21.2 - Burner Low-Fire Adjustment 250-800 HP

Adjusting fuel input for low-fire on 250-800 HP burners.

6.22 - Burner Drawer Adjustment

Checking burner drawer components and diffuser location.

6.24 - Low-Oil-Temperature Switch: Heavy Oil

Setting the low-oil-temperature switch for heavy oil.

6.25 - High-Oil-Temperature Switch: Optional

Setting the optional high-oil-temperature switch.

6.26 - Low-Oil-Pressure Switch: Optional

Setting the optional low-oil-pressure switch.

CHAPTER 7 Troubleshooting

7.1 - Introduction

Overview of troubleshooting procedures and assumptions.

7.2 - Problem-Cause Suggestions

Common burner problems and their potential causes.

NO IGNITION Problems

Troubleshooting steps for ignition failures.

PILOT FLAME, BUT NO MAIN FLAME Issues

Troubleshooting steps when pilot flame is present but main flame is not.

BURNER STAYS IN LOW FIRE Issues

Troubleshooting steps when the burner remains in low-fire position.

SHUTDOWN OCCURS DURING FIRING Issues

Troubleshooting steps for unexpected burner shutdowns during firing.

MODULATING MOTOR DOES NOT OPERATE Issues

Troubleshooting steps for modulating motor operational failures.

CHAPTER 8 Inspection and Maintenance

8.1 - Overview

Importance of maintenance and inspection schedules for boiler performance.

8.1.1 - Periodic Inspection

Guidelines for scheduled inspections of the pressure vessel and boiler components.

TABLE 8-1. Recommended Boiler Inspection Schedule

Schedule for daily, monthly, semi-annually, and annually boiler inspections.

8.2 - Fireside Cleaning

Procedures for cleaning soot and non-combustible deposits from fireside surfaces.

8.3 - Water Level Controls

Importance of checking and maintaining water level controls.

8.3.1 - Steam Boiler

Specific instructions for maintaining steam boiler water level controls.

8.4 - Water Gauge Glass Maintenance

Procedures for inspecting, cleaning, and replacing water gauge glasses.

8.5 - Electrical Controls Inspection

Monthly inspection of electrical connections and controls cleanliness.

8.6 - Flame Safety Control Maintenance

Maintenance and testing of the microprocessor-based flame safety control.

8.6.1 - Checking Pilot Flame Failure

Procedure to test for pilot flame failure and safety shutdown.

8.6.2 - Checking Failure to Light Main Flame

Procedure to test for failure to ignite the main flame.

8.6.3 - Checking Loss of Flame

Procedure to test for loss of flame during normal operation.

8.7 - Oil Burner Maintenance

Inspection and maintenance procedures for oil burner components.

8.7.1 - Light Oil Strainers Cleaning

Guidelines for cleaning light oil strainers.

8.7.2 - Heavy Oil Strainers Cleaning

Guidelines for cleaning heavy oil strainers.

8.7.3 - Cleaning the Oil Nozzle

Procedure for cleaning the oil nozzle and swirler.

8.7.4 - Cleaning Air Purge Nozzle and Back Pressure Orifice

Procedure for cleaning air purge and back pressure orifice nozzles.

8.7.5 - Ignition System Maintenance

Maintenance of ignition electrodes, porcelain insulators, and cables.

8.8 - Gas Burner Maintenance

Inspection and maintenance of gas burner components and refractory seal.

8.9 - Motorized Gas Valve Maintenance

Routine checks and maintenance for motorized gas valves.

8.10 - Solenoid Valves Maintenance

Maintenance of solenoid valves, including disassembly and coil replacement.

8.11 - Air Control Damper, Linkage and Cam Spring

Inspection and lubrication of air control damper, linkage, and cam spring.

8.12 - Fan;Motor Cassette Removal

Procedure for removing the fan/motor cassette for inspection.

8.13 - Inspection and Adjustment (IFGR)

Inspecting IFGR linkages, damper movement, and impeller clearances.

8.14 - Fan;Motor Cassette Installation

Procedure for installing the fan/motor cassette and checking for proper fit.

8.15 - Safety Valves

Recommendations for safety valve inspection and testing frequency.

8.16 - Fuel Oil Metering Valve, Adjusting and Relief Valves

Procedures for adjusting and maintaining the fuel oil metering valve and packing.

8.17.2 - Lubricating Oil Requirements

Specifications for lubricating oil viscosity and level.

8.17.7 - Flexible Coupling Alignment

Importance and procedure for checking and maintaining flexible coupling alignment.

8.17.8 - Air Compressor Replacement

Procedures for replacing the air compressor pump, including dismantling.

8.18 - Refractory

Maintenance of refractory components to ensure proper operation and longevity.

8.18.1 - Furnace Liner Maintenance

Maintenance of the furnace liner, including wash coating and crack repair.

8.18.2 - Throat Tile and Liner Installation

Installation procedures for throat tiles and liners.

8.19 - Opening and Closing Doors

Procedures for safely opening and closing boiler doors.

8.20.1 - Electric Motors Lubrication

Guidelines for lubricating electric motors and their bearings.

8.20.2 - Control Linkage Lubrication

Lubrication of pivot points and moving parts in control linkage.

8.20.4 - IFGR Lubrication

Lubrication instructions for the IFGR motor.

8.21 - Oil Heaters: Electric, Steam, Hot Water

Annual maintenance of oil heaters, including cleaning elements.

8.22 - Combustion

Factors affecting burner adjustments and the importance of air-fuel ratio checks.

CHAPTER 9 Parts

9.1 - Ordering Parts

Guidelines for ordering replacement parts, including necessary information.

9.2.1 - Front Door Insulated Head Parts

Part numbers for front door insulated head assemblies by boiler diameter.

9.2.2 - Front Door Exterior Insulation Component List

List of components for front door exterior insulation, including quantities and part numbers.

9.2.3 - Rear Door Insulated Assembly Parts

Part numbers for rear door insulated assemblies by boiler diameter.

9.2.4 - Rear Door Insulation Component List

List of components for rear door insulation, including quantities and part numbers.

9.2.5 - Rear Door Insulated Access Plug Parts

Part numbers for rear door insulated access plugs by boiler diameter.

9.2.6 - Front Head Assembly 60” Diameter Parts

List of parts for the 60" front head assembly, including item numbers and descriptions.

9.2.7 - Front Davit Assembly Parts

List of parts for front davit assemblies by boiler diameter.

9.2.8 - Rear Door Davit Parts List

List of parts for rear door davit assemblies.

9.2.9 - Refractory Throat Materials for 60” Parts

List of parts for refractory throat materials for 60" boilers.

9.2.10 - Refractory Throat Materials 67”-106” Parts

List of parts for refractory throat materials for 67"-106" boilers.

9.2.11 - Motor Cartridge Assembly: 60” Parts

List of parts for the 60" motor cartridge assembly.

9.2.12 - Motor Cartridge Assembly: 67” Parts

List of parts for the 67" motor cartridge assembly.

9.2.13 - Motor Cartridge Assembly: 78” Parts

List of parts for the 78" motor cartridge assembly.

9.2.14 - Motor Cartridge Assembly: 85” Parts

List of parts for the 85" motor cartridge assembly.

9.2.15 - Motor Cartridge Assembly: 96” Parts

List of parts for the 96" motor cartridge assembly.

9.2.16 - Motor Cartridge Assembly: 106” Parts

List of parts for the 106" motor cartridge assembly.

9.2.17 - Front Head, FGR Linkage: 60”-85” Parts

List of parts for the front head FGR linkage for 60"-85" boilers.

9.2.19 - Front Head, FGR Linkage: 96” & 106” Parts

List of parts for the front head FGR linkage for 96"-106" boilers.

9.2.20 - 60” Burner Drawer, Gas Pilot, Models 100-600, 100-125 HP Parts

List of parts for the 60" burner drawer with gas pilot.

9.2.21 - 67” Burner Drawer, Gas Pilot, Models 101-600, 150-200 HP Parts

List of parts for the 67" burner drawer with gas pilot.

9.2.22 - 78” Burner Drawer, Gas Pilot, HI-TD, 250-300 HP Parts

List of parts for the 78" burner drawer with gas pilot.

9.2.23 - 85” Burner Drawer, Gas Pilot, Models 100-200, 350-400 HP Parts

List of parts for the 85" burner drawer with gas pilot.

9.2.24 - 96”-106” Burner Drawer, Gas Pilot, Models 101 & 200, 500-800 HP Parts

List of parts for 96"-106" burner drawer with gas pilot.

9.2.25 - Burner Housing Support: 60” Parts

List of parts for the 60" burner housing support.

9.2.26 - Burner Housing Support: 67”-106” Parts

List of parts for the 67"-106" burner housing support.

9.2.27 - General Control Panel Parts: 60”-106”, 100-800 HP

List of parts for the general control panel.

9.2.28 - Entrance Box & Fuses Parts: 60”-1-6”, 100-800 HP

List of parts for the entrance box and fuses.

Fuse Sizing Charts

Tables detailing recommended fuse sizes for motors, transformers, and pumps.

9.2.29 - Main Gas Train Parts: 60”-106”, 100-800 HP

List of parts for the main gas train assembly.

9.2.30 - Pilot Gas Train Parts: 60”-106”, 100-800 HP

List of parts for the pilot gas train assembly.

9.2.31 - Front Head #2 Oil;Air Piping: 60”-67”, 100-200 HP Parts

List of parts for the front head oil/air piping (60-67").

9.2.33 - Front Head #2 Oil;Air Piping: 96”-106”, 500-800 HP Parts

List of parts for the front head oil/air piping (96-106").

9.2.35 - Air Compressor Parts: 60”-85”, 100-400 HP

List of parts for the air compressor assembly.

9.2.37 - Light Oil Piping: 78”-106”, 250-800 HP Parts

List of parts for light oil piping (78-106").

9.2.38 - Light Oil Piping: 60”-67”, 100-200 HP Parts

List of parts for light oil piping (60-67").

9.2.39 - Hot Water Temperature Controls Parts

List of parts for hot water temperature controls.

9.2.40 - Steam Pressure Controls Parts

List of parts for steam pressure controls.

9.2.41 - Water Column Piping: 60”-67”, 100-200 HP Parts

List of parts for water column piping (60-67").

Water Column Piping Parts for Various Controls

Parts lists for water column piping with various level controls.

9.2.43 - Water Column Piping: 96”-106”, 500-800 HP Parts

List of parts for water column piping (96-106").

Level Master Equipment Parts

List of parts for Level Master equipment.

External A.L.W.C.O. Parts

List of parts for external Auxiliary Low Water Cutoff (A.L.W.C.O.).

9.2.44 - Front Door Air Duct Gasket Parts

List of parts for front door air duct gaskets.

9.2.45 - Pressure Vessel Manway Components Parts

List of parts for pressure vessel manway components.

9.2.46 - Pressure Vessel Handhole Components Parts

List of parts for pressure vessel handhole components.

9.2.47 - Pressure Vessel Handhole Components Parts (Continued)

Additional parts for pressure vessel handhole components.

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