Related Manuals for Cleaver-Brooks Profire E Series
Summary of Contents for Cleaver-Brooks Profire E Series
- Page 1 Table Of Contents Profire E/LNE Burner Light Oil, Gas, or Combination Installation Operation Maintenance Manual Part No. 750-297 07/2019...
- Page 2 E/LNE SERIES Installation, Operation, and Service Manual Manual Number: 750-297 Release Date: July 2019...
- Page 3 Copyright © 2019 by Cleaver-Brooks All rights reserved. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means without the prior written consent of Cleaver-Brooks. Cleaver-Brooks 351 21st Street...
- Page 4 PREFACE Warning and caution references have been made in this manual and should be adhered to for proper opera- tion of the burner. Warning This symbol precedes information which, if disregarded, may result in injury to the user of the burner or to others.
- Page 5 Standard Specifications for EG-EL-ELG Series: Gas, #2 Oil, Gas/Oil Configuration Separate Comp. Metering #2 Oil Furnace Blower Module System Burner Gas Input Input @80% Pressure Motor Motor HP Motor HP Blower Motor Model MBtu/hr US GPH Eff. (“W.C.) 3 PH 3 PH.
- Page 6 <30 PPM Low NOx Standard Specifications for LNEG-LNELG Series: Gas, Gas/Oil Configuration Separate Comp. Metering #2 Oil Furnace Blower Module System Burner Input Input @80% Pressure Motor Motor HP Motor HP Blower Motor Model MBtu/hr US GPH Eff. (“W.C.) 3 PH 3 PH.
- Page 7 E Series Standard Dimensions - Uncontrolled NOx Configuration Accompanying dimensions are for layout purposes only L° ØI ØG ØH JX ØK DIMENSION DESCRIPTION SIZE 1 SIZE 2 SIZE 3 MOUNTING FLANGE TO PIN 26-1/4" 34-1/16" 36-7/16" 63-7/8" 77-7/16" 84-9/32" 2-3/4" 2-3/4"...
- Page 8 E Series Standard Dimensions - <30 PPM Low NOx Configuration Accompanying dimensions are for layout purposes only L° ØI ØG ØH JX ØK DIMENSION DESCRIPTION SIZE 1 SIZE 2 SIZE 3 26-1/4" 34-1/16" 36-7/16" MOUNTING FLANGE TO PIN 63-7/8" 77-7/16" 84-9/32"...
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Page 9: Table Of Contents
Profire E/LNE Series Table of Contents Introduction 1-1 CHAPTER 1 1.1 — Overview 1-1 1.2 — Description 1-1 1.3 — Operating Controls 1-2 1.3.1 — Control Panel 1-2 1.3.2 — Flame Safeguard Controls 1-2 1.3.3 — Firing Rate Controls 1-3 1.4 —... - Page 10 2.3 — Combustion Chamber Recommendations and E Refractory Dimensions 2-2 2.3.1 — Watertube Boiler Dimensions 2-2 2.3.2 — Firetube Boiler Dimensions 2-3 2.4 — Installation 2-5 2.4.1 — General 2-5 2.4.2 — Refractory Dry Oven 2-5 2.5 — Separate Compressor Module 2-7 2.6 —...
- Page 11 3.6 — Manual Shutdown 3-4 3.7 — Safety Shutdown 3-4 3.8 — Startup and Operating 3-5 3.8.1 — Gas Burners 3-5 3.8.2 — Oil Burners 3-6 3.9 — Normal Operation 3-6 3.10 — Shutdown 3-6 Adjustments 4-1 CHAPTER 4 4.1 — Overview 4-1 4.2 —...
- Page 12 4.7 — Cam Trim Adjustment 4-6 4.8 — Parallel Positioning Adjustment 4-7 4.9 — Firing Rate Controls 4-7 4.10 — Dual Manifold Systems 4-9 4.10.1 — Gas Metering Valve Theory of Operation 4.10.2 — 4-10 Gas Meterng Valve Setup Maintenance 5-1 CHAPTER 5 5.1 —...
- Page 13 5.12.2 — Air Cleaner 5-6 5.12.3 — Air-Oil Tank 5-6 5.12.4 — Oil Level Sight Gauge 5-7 5.12.5 — Compressor Oil Filter (Lube Oil Strainer) 5-7 5.12.6 — Compressor Lubrication 5-7 5.13 — Gas System 5-7 5.13.1 — Motorized Main Gas Valves 5-7 5.13.2 —...
- Page 14 LNE Series FGR System 8-1 CHAPTER 8 8.1 — Description 8-1 8.2 — FGR Shutoff Valve 8-2 8.3 — FGR Control Valve 8-2 8.4 — Air/FGR Damper Assembly 8-4 8.5 — Stack Temperature Interlock 8-4 STARTUP/SERVICE REPORT WARRANTY POLICY 750-297 Profire E/LNE Series Manual...
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Page 15: Introduction
Introduction CHAPTER 1 1.1 — Overview E series burners are assembled, wired, and tested at the factory. They are listed by the Underwriters Laboratory, CSD-1, NFPA-85, F.M., including the national Electrical Code (NEC), and associated insurance underwriters. Where applicable, the Canadian Gas Association (CGA) B149 and the Canadian Standards Association (CSA) B140 codes shall prevail. -
Page 16: Operating Controls
Introduction 1.3 — Operating Controls 1.3.1 — Control Panel The control panel contains a flame safeguard programming control, motor starters, relays, time delays, and terminal strips mounted internally on a panel sub-base. Lights, switches, potentiometers, a control circuit breaker, and flame safeguard displays are mounted externally on the panel. -
Page 17: Firing Rate Controls
Introduction 1.3.3 — Firing Rate Controls Regardless of the fuel used, burner input is fully modulated between low fire and high fire on boiler demand. The firing rate is controlled by the potentiometer-regulated modulating motor. The combustion air control damper, oil metering pump, and/or gas volume butterfly valve are controlled through variable rate rod and lever linkages. -
Page 18: Oil System Air Atomizing
Introduction 1.6 — Oil System Air Atomizing E Model burners use compressed air for atomization. Atomizing air is independent of combustion air. The system is supplied with a separate compressor module for mounting near the burner. 1.6.1 — 3-Way Solenoid Valve Metered oil enters the common port of the 3-way solenoid valve. -
Page 19: Oil Metering
Introduction 1.6.5 — Oil Metering Fuel oil under nominal pressure in the circulating loop flows to the adjustable positive displacement (volumetric metering unit). Oil metering is accomplished by changing the piston stroke by means of an eccentric shaft and pin assembly. -
Page 20: Gas System
Introduction Compressor Module and Burner FIGURE 1-3. 1.7 — Gas System Gas is introduced into the combustion zone from a circular manifold through multiple ports in the manifold. Firing rate is determined by the size and number of ports, by manifold pressure, and by combustion zone pressure. The firing rate is regulated by a rotary, butterfly-type throttling valve at the manifold inlet. -
Page 21: E-126-1
Introduction Component Description Gas Volume Valve The butterfly-type valve is positioned by linkage from the modulating motor and controls the rate of flow of the gas. Main Gas Valves Electrically operated safety shutoff valve(s) that open to admit gas to the burner. Standard U.L. -
Page 22: Pilot Gas Train Components
Introduction Main Gas Train (Model E126-E420) FIGURE 1-5. NOTE: These piping layouts are for reference only and are subject to change without notice. Optional equipment may change a layout. 1.7.2 — Pilot Gas Train Components Component Description Gas Pilot Valve A solenoid valve that opens during the ignition period to admit fuel to the pilot. -
Page 23: Operation
Introduction 1.7.3 — Operation Metered gas flows through the main gas shutoff cock, through the pressure regulator to the automatic gas valves and butterfly valve to the gas manifold. The butterfly gas valve modulates flow to burner input demand. The butterfly valve is positioned through mechanical linkage by the modulating motor. - Page 24 Introduction 1-10 750-297 Profire E/LNE Series Manual...
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Page 25: Installation
Installation CHAPTER 2 2.1 — Application Electrical power available is usually 208 volt, 3-phase, 60 cycle, 230/460 volt, 3-phase, 60 cycle or 380 volt, 3-phase, 50 cycle. Control circuit is 115 volt, single phase, 60 cycle or 115 volt, single phase, 50 cycle. Refer to the electrical schematic diagram shipped with the burner. -
Page 26: Combustion Chamber Recommendations And E Refractory Dimensions
Installation 2.3 — Combustion Chamber Recommendations and E Refractory Dimensions The combustion chamber dimensions should be proportioned to the heating load of the boiler. 2.3.1 - Watertube Boiler Dimensions 45° BURNER C (MIN) STANDARD FIREBRICK FLOOR 1-1/2" + A BLOCK INSULATION Combustion Chamber Dimensions (Watertube Boiler) FIGURE 2-1. -
Page 27: Firetube Boiler Dimensions
Installation 2.3.2 - Firetube Boiler Dimensions Combustion Chamber Dimensions (Firetube Boiler) FIGURE 2-2. Burner Model Boiler HP 1000 750-297 Profire E/LNE Series Manual... - Page 28 Installation SIZE 1 SIZE 2 SIZE 3 (22.5°) (15°) (45°) (45°) (30°) (30°) (30°) ( 27.63) ( 29.13) ( 31.50) ( 19.25) ( 33.25) ( 29.75) 19.00 ( 28.25) 13.39 16.00 ( 24.00) SEE FIGURE 2-4 SIZE 1 SIZE 2 SIZE 3 25.39 21.39...
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Page 29: Installation
Installation 2.4 — Installation Caution The housing must be supported when in the open position to prevent damage to the hinges and other components. Caution The heat exchanger may have areas within the furnace susceptible to heat damage and may require furnace liner tile and refractory cement filler to adequately protect those surfaces. - Page 30 Installation When retrofitting a heat exchanger, if a flame-shaping dry oven was used with the previous burner, discard that dry oven. Dry Oven Installation: The face of the boiler and refractory dry oven flange must be sealed with asbestos-free ceramic fiber blanket or rope gasket to prevent emission-gas leakage.
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Page 31: Separate Compressor Module
Installation 2.5 — Separate Compressor Module For oil burners supplied with a separate compressor module, piping to the burner is installed. Earlier models have the oil cooler finned coil located below the damper. The earliest units used a coil in the blast tube, but piping to the compressor and tank is essentially similar. -
Page 32: Oil Circulating Loop Operation
Installation Typical Oil Supply Loop FIGURE 2-6. 2.7 — Oil Circulating Loop Operation An oil circulating pump provides continuous oil circulation to the circulation loop. A back pressure valve holds 10 to 15 psi on the loop system. With the oil supply line connected only to the oil metering pump inlet, all oil must pass through the pump. -
Page 33: E-210-2
Installation BACK PRESSURE VALVE SET AT 10-15 PSI 2-WAY VALVE ON BURNER TO DRAWER ASSEMBLY 3-WAY VALVE ON BURNER RELIEF VALVE CHECK LOW OIL VALVE PRESSURE SWITCH PRESSURE REQUIRED IF PUMP DOES NOT GAUGE & HAVE AN INTERNAL RELIEF. NEEDLE RELIEF VALVE SET AT 50 PSI VALVE OIL METERING... -
Page 34: E-252-2
Installation BACK PRESSURE VALVE SET AT 10-15 PSI 2-WAY VALVE ON BURNER TO DRAWER ASSEMBLY 3-WAY VALVE RELIEF ON BURNER VALVE LOW OIL PRESSURE SWITCH CHECK PRESSURE VALVE REQUIRED IF PUMP DOES NOT GAUGE & HAVE AN INTERNAL RELIEF. NEEDLE RELIEF VALVE SET AT 50 PSI VALVE OIL METERING... -
Page 35: Circulating Oil Pump
Installation 2.8 — Circulating Oil Pump A circulating oil pump is required to deliver fuel oil from the storage tank to the burner at a minimum of 150% of the maximum burner firing rate. The excess oil allows a margin for piping error, viscosity changes in the fuel oil, and circulating pump wear. -
Page 36: Installation Checklist
Installation 2.11 — Installation Checklist All burners are carefully assembled and tested at the factory, but before being placed in service, all connectors should again be checked for looseness caused during shipment. Check: • Electrical terminals in the control panel and on all electrical components. •... -
Page 37: Operation
Operation CHAPTER 3 3.1 — Preparations for Starting When the installation is complete and all electrical, fuel, water, and vent stack connections are made, make certain said connections are tight. The operator should become familiar with the burner, boiler controls, and components. To identify controls and components, refer to contents of Chapter 1. -
Page 38: Oil Flow
Operation 3.1.1 — Oil Flow Refer to piping diagrams. Open all valves in the oil suction and return line. The burner oil metering units are not capable of creating suction. Fuel oil must be supplied to the metering unit at a nominal 10 to 15 psi pressure by a circulating supply pump. -
Page 39: Gas Fired
Operation 3.2.1 — Gas Fired Close the pilot and the main line manual gas valves. Start the burner and at the time of the pilot trial, with just the electrical ignition system energized, the flame relay should not pull in (be energized). Upon completion of successful test, proceed with startup procedures. -
Page 40: Automatic Shutdown
Operation Place the gas.oil selector switch in position for the desired fuel. With all limit and operating controls calling for heat, the burner will follow the Flame Safeguard Sequence. When the burner motor starts, open the gas cock. If firing on gas, when the main fuel lamp lights indicating pilot flame proven, slowly open the second shutoff cock downstream of the main gas valve(s). -
Page 41: Startup And Operating
Operation If a low water condition occurs, the burner shuts down as in Automatic Shutdown. If a high or low gas pressure condition occurs while firing on gas, the burner shuts down as in Automatic Shutdown. A. Condition must be corrected and the respective gas pressure switch manually reset before the burner will fire again on gas. -
Page 42: Oil Burners
Operation 3.8.2 — Oil Burners Set the fuel selector switch to “OIL.” On initial startup of a combination burner, it is recommended that oil firing be adjusted before gas firing. The gas low firing rate is set to match the oil low fire rate. Be sure the ON-OFF switch is in the “OFF”... - Page 43 Operation The fuel valve(s) de-energize and the flame extinguishes. The blower motor continues running during post-purge. At the end of post-purge, the blower motor is de-energized. The programmer returns to its starting position and stops. The unit is ready to restart. Abnormal shutdown might result from motor overload, flame outage, low water, current or fuel supply interruption, combustion or atomizing air pressure below minimum level, tripped circuit breakers, blown fuses, or other interlock devices.
- Page 44 Operation 750-297 Profire E/LNE Series Manual...
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Page 45: Adjustments
Adjustments CHAPTER 4 4.1 — Overview While each burner is tested at the factory for correct operation before shipment, variable conditions such as burning characteristics of the fuel used and operating load conditions may require further adjustment after installation to assure maximum operating efficiency. -
Page 46: Smoke Measurement
Adjustments 4.2.2 — Smoke Measurement Smoke measurements can be made using a variety of different methods. The standards will vary somewhat according to the equipment used, and instructions accompanying the instrument should be followed. Smoky combustion can result from: • Improper air delivery •... -
Page 47: Gas System
Adjustments 4.4 — Gas System 4.4.1 — Gas Pressure Gas must be supplied at a pressure high enough to overcome the pressure loss in the burner gas train and furnace pressure while running at full input. Refer to nameplate inside control panel for gas pressure requirements at train inlet and manifold. -
Page 48: High Gas Pressure Switch
Adjustments 4.4.6 — High Gas Pressure Switch Turn the adjusting screw until the indicator moves to a pressure setting slightly above the maximum operating gas pressure. The control will break a circuit if pressure exceeds this value. The control should be adjusted to prevent operation with excessive gas pressure, but not at a pressure so close to normal operating pressure that unnecessary shutdowns occur.This switch must be manually reset after tripping. -
Page 49: Atomizing Air Pressure
Adjustments The nozzle is not plugged or carboned. This will show up as excessive primary air pressure. The oil bypass valve is not bypassing the metered fuel oil. Internal wear of the pump may take place due to the presence of dirt in the oil and in time this will result in excessive clearances which reduce the pump capacity. -
Page 50: Cam Trim Adjustment
Adjustments of change. The closer the rod to the hub of the lever, the less distance it will travel.Increasing the lever length on the damper, metering unit and valve(s) decreases flow rate. 4.7 — Cam Trim Adjustment After low and high fire adjustments are complete, final adjustment is made with the cam assembly to obtain a good air/ fuel ratio throughout the entire firing range.The input of combustion air is fixed at any given point in the modulating cycle. -
Page 51: Firing Rate Controls
Adjustments actuators for fuel, air, and FGR (if so equipped) will be coordinated to provide optimum combustion throughout the firing range. 4.9 — Firing Rate Controls Firing rate adjustments are made at the modulating motor linkages to the combustion air inlet damper, air-oil metering pump, and main gas butterfly valve. - Page 52 Adjustments GAS BUTTERFLY VALVE FUEL OIL METERING PUMP MODULATING MOTOR COMBUSTION AIR DAMPER LOW FIRE POSITION GAS BUTTERFLY VALVE FUEL OIL METERING PUMP MODULATING MOTOR COMBUSTION AIR DAMPER HIGH FIRE POSITION Firing Rate Control Positions FIGURE 4-2. 750-297 Profire E/LNE Series Manual...
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Page 53: Dual Manifold Systems
Adjustments 4.10 — Dual Manifold Systems Certain models may use a dual-gas manifold for optimal gas/air mixing. These systems use two gas-metering-butterfly valves to control the gas flow into their respective manifolds as shown in Figure 4-3. The Secondary valve controls the low-to-mid-fire gas and the Primary valve controls the mid-to-high-fire gas. -
Page 54: Gas Meterng Valve Setup
Adjustments Primary and Secondary Bu er y Posi on with respect to Firing Rate Manifold Bu er y Valve Opening NOTE: Values represent Valve Opening in % or Degrees depending on the Control being used Primary Secondary (larger valve) 5.0 Low Fire 5.0 Low Fire 10.0 15.0... -
Page 55: Maintenance
Maintenance CHAPTER 5 5.1 — Overview Warning Any cover plates, enclosures, or guards anchored to the burner, or any burner related equipment, must remain in position at all times. Only during maintenance and service shutdown can these cover plates, enclosures, or guards be removed. They must be replaced, and securely anchored before testing, adjusting, or running the burner or burner related equipment. -
Page 56: Programming Control
Maintenance 5.2.1 — Programming Control This control requires no adjustment, nor should any attempt be made to alter contact settings or timing logic. Those programmers with contacts may require occasional cleaning. If so, follow instructions given in the manufacturer's bulletin. Never use abrasive materials. The manufacturer's bulletin also contains troubleshooting information. The flame detector lens should be cleaned as often as conditions demand. -
Page 57: Pilot And Ignition Electrode
Maintenance 5.5 — Pilot and Ignition Electrode The ignition transformer requires little attention other than making sure the ignition wire is firmly attached to the transformer and the electrode. Be sure the wire insulation is in good condition and not grounded. Failure to keep the ignition electrode clean and properly set can cause faulty operation. -
Page 58: Diffuser
Maintenance To insure proper atomizing, the tip must be screwed in tightly with the swirler seating spring pressing the swirler tight against the nozzle tip. Turn the swirler a few times to be sure it fits snugly in the nozzle and the spring is pressing the two parts firmly together. -
Page 59: Firing Rate Controls
Maintenance 5.9 — Firing Rate Controls Check all rods and linkages, Make sure all connections are tight. Adjust if necessary. Perform a combustion test as explained in Chapter 4, and readjust the burner if necessary. 5.10 — Burner Mounting Inspection The seal between the burner flange and furnace front plate must not permit combustion gases to escape. -
Page 60: Primary Compressor System
Maintenance Caution Do not attempt to disassemble the oil metering pump in the field. Any attempt will void the warranty or the exchange policy. 5.12 — Primary Compressor System 5.12.1 — Primary Compressor The air compressor itself requires little maintenance, however, its life is dependent upon sufficient clean, cool lubricating oil. -
Page 61: Oil Level Sight Gauge
Maintenance 5.12.4 — Oil Level Sight Gauge The oil level sight gauge can be cleaned by removing it from the air-oil tank and soaking it in a detergent solution. If cleaning the gauge proves unsatisfactory, replace it. 5.12.5 — Compressor Oil Filter (Lube Oil Strainer) The lube oil strainer prevents foreign materials from entering the compressor. -
Page 62: Gas Pressure Regulators
Maintenance Should it become necessary to replace the complete valve, be sure that the flow is in the direction of the arrow on the body. Test for gas leaks and check valve action several times to ensure proper operation before attempting to relight the burner. -
Page 63: Loss Of Flame
Maintenance The fuel valves de-energize within four seconds after the main burner ignition trial ends. The control will lock out on a safety shutdown. The flame failure light (and optional alarm) will be activated. The blower motor will run through the post-purge and stop. -
Page 64: Recommended Maintenance Schedule
Maintenance 5.17 — Recommended Maintenance Schedule Item Service By Remarks DAILY Gauges, Monitors, Indicators Operator Make visual inspection and record readings in log. Instrument & Equipment Settings Operator Make visual check against recommended specifications. Low Water, Fuel Cutoff & Alarms Operator Refer to instructions. -
Page 65: Troubleshooting
Troubleshooting CHAPTER 6 Warning Troubleshooting should be performed only by personnel who are familiar with the equipment and who have read and understood the contents of this manual. Failure to follow these instructions could result in serious personal injury or death. Warning Disconnect and lockout the main power supply in order to avoid the hazard of electrical shock. -
Page 66: Emergency Shutdown
Troubleshooting If an obvious condition is not apparent, check the continuity of each circuit with a voltmeter or test lamp. Each circuit can be checked and the fault isolated and corrected. In most cases, circuit-checking can be accomplished between appropriate terminal on the terminal boards in the control cabinet or entrance box. Refer to the wiring schematic supplied for terminal identification. -
Page 67: Problem/Possible Causes
Troubleshooting 6.3 — Problem/Possible Causes Problem Possible Causes Burner Does Not Start 1. No voltage at the program relay power input terminals. a. Main disconnect switch open. b. Blown control circuit fuse. c. Loose or broken electrical connection. 2. Program relay safety switch requires resetting. 3. - Page 68 Troubleshooting Problem Possible Causes Pilot Flame, but No Main 1. Insufficient pilot flame. Flame 2. Gas fired unit: a. Manual gas cock closed. b. Main gas valve inoperative. c. Gas pressure regulator inoperative. 3. Oil fired unit: a. Oil supply cut off by obstruction, closed valve, or loss of suction. b.
- Page 69 Troubleshooting Problem Possible Causes Modulating Motor Does 1. Manual/automatic switch in wrong position. Not Operate 2. Linkage loose or jammed. 3. Motor does not drive to open or close during pre-purge or close on burner shutdown. a. Motor defective. b. Loose electrical connection. c.
- Page 70 Troubleshooting 750-297 Profire E/LNE Series Manual...
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Page 71: Accessories
Accessories CHAPTER 7 7.1 — Overview The E Series burners are available with a wide selection of accessories. This section will cover some of the most popu- lar accessories. 7.2 — Steam Atomizing System Steam Atomizing System FIGURE 7-1. 750-297 Profire E/LNE Series Manual... -
Page 72: Air Purge System (Optional)
Accessories The steam atomizing line is shipped loose and must be piped and wired to the burner as shown in the diagram below. Refer to the wiring diagram for the electrical connection. The air compressor is used for cold oil startup. Start the boiler with the air atomizing system first. - Page 73 Accessories FROM SUPPLY WIRE TO FLAME FLOW SAFEGUARD BLOWER MOTOR TERMINAL Plant Air System/Top Loaded with Air FIGURE 7-3. 750-297 Profire E/LNE Series Manual...
- Page 74 Accessories FROM SUPPLY OIL PRESSURE DOWN STREAM OF OIL METERING VALVE/NOZZLE PRESSURE TO TOP LOAD AIR PRESSURE REGULATING VALVE WIRE TO FLAME SAFEGUARD BLOWER FLOW MOTOR TERMINAL NOTE: 1 - AIR PRESSURE REGULATOR SHOULD HAVE TRIM KIT TO ALLOW OIL OVER REGULATOR Plant Air System/Top Loaded with Oil FIGURE 7-4.
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Page 75: Lne Series Fgr System
NOTE: Check all burner and FGR wiring before operating the unit. Turn all power off when working with any wiring. Power must be turned off at the disconnect to the boiler. Boiler operation and FGR adjustment must be done by a qualified Cleaver-Brooks service representative. 8.1 — Description... -
Page 76: Fgr Shutoff Valve
LNE Series FGR System 8.2 — FGR Shutoff Valve The FGR Shutoff valve is located as close to the stack as possible. A modutrol motor with a 90º stroke opens and closes the FGR shutoff valve in 15 seconds. Proof of closure for the shutoff valve is provided by an auxiliary switch in the modutrol motor. - Page 77 LNE Series FGR System FGR CONTROL VALVE MODULATING MOTOR FGR - LOW FIRE FGR CONTROL VALVE MODULATING MOTOR FGR - HIGH FIRE FGR Control Valve and Control Positions FIGURE 8-3. 750-297 Profire E/LNE Series Manual...
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Page 78: Air/Fgr Damper Assembly
LNE Series FGR System 8.4 — Air/FGR Damper Assembly The Air/FGR damper regulates the volume of combustion air. Position of the rotary damper blade is controlled by a modutrol motor. The damper blade in the low fire position is normally approximately 1" open at low fire. The Air/FGR damper and FGR control valve blades open as the modutrol motor drives toward the high fire position where flue gas is pulled into the regulated combustion air flow above the damper blade as controlled by the FGR control valve. - Page 79 LNE Series FGR System Temperature Interlocks FIGURE 8-4. 750-297 Profire E/LNE Series Manual...
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Page 80: Lne-126-1
LNE Series FGR System Minimal Pipe Size (Schedule 10 Pipe) Burner Maximum Feet From Burner to Boiler Stack Model 20’ 30’ 40’ 50’ 75’ 100’ 150’ 200’ LNE-84 8” 8” 8” 8” 10” 10” 10” 12” LNE-105 8” 8” 8” 8”... - Page 81 Startup/Service Report The following information should be filled in by the service technician at startup or after any adjustment to the burner. A copy of the startup report MUST be forwarded to C-B in order to validate the warranty of the burner. Burner Model _______________ Serial Number_______________ Startup Date_______________...
- Page 82 750-297 Profire E/LNE Series Manual...
- Page 83 Warranty Policy Limited Warranty: The Company warrants that at the time of shipment, the equipment manufactured by it shall be merchantable, free from defects in material and workmanship and shall possess the characteristics represented in writing by the Company. The Company's warranty is conditioned upon the equipment being properly installed and maintained and operated within the equipment's capacity under normal load conditions with competent supervised operators.
- Page 84 adjustment covering part manufactured by the Company as set forth in this subparagraph (10.4). Expenses incurred by Buyer in replacing or repairing or returning the spare or replacement parts will not be reimbursed by the Company. Limitation of Liability: The above warranty adjustment set forth Buyer's exclusive remedy and the extent of the Company's liability for breach of implied (if any) and express warranties, representations, instructions or defects from any cause in connection with the sale or use of the equipment.
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