CleaverBrooks ProFire Q Series Installation Operation & Maintenance
CleaverBrooks ProFire Q Series Installation Operation & Maintenance

CleaverBrooks ProFire Q Series Installation Operation & Maintenance

Full modulation burner with uv flame detection

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Table Of Contents
ProFire Q
Full Modulation Burner
with UV flame detection
Installation
Operation
Maintenance
Manual Part No. 750-437
07/2019

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Summary of Contents for CleaverBrooks ProFire Q Series

  • Page 1 Table Of Contents ProFire Q Full Modulation Burner with UV flame detection Installation Operation Maintenance Manual Part No. 750-437 07/2019...
  • Page 3 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 Monroe, WI 53566 608-325-3141 cleaverbrooks.com 750-437 Q Series Full Modulation...
  • Page 4: Table Of Contents

    Q Series Installation, Operation, and Service Manual Table of Contents Preface Specifications Dimensions Spare Parts List Introduction 1-1 CHAPTER 1 Description 1-1 Control Panel 1-2 Burner Control and Air Delivery 1-3 Direct Spark System 1-4 Firing Head 1-5 Gas System 1-6 Installation 2-1 CHAPTER 2 Burner Requirements 2-1...
  • Page 5 Adjustments 4-1 CHAPTER 4 Overview 4-1 Gas System 4-1 Maintenance 5-1 CHAPTER 5 Overview 5-1 Control System 5-2 Impeller 5-2 Firing Head Inspection 5-2 Ignition Electrode 5-3 Flame Scanner 5-3 Firing Rate Controls 5-4 Burner Mounting Inspection 5-4 Gas System 5-4 Electrical System 5-4 Extended Shutdown 5-5 Recommended Maintenance Schedule 5-6...
  • Page 6: Preface

    PREFACE It is the responsibility of the owner of this equipment to post and maintain a legible copy of this Installation, Operation and Maintenance manual while this equipment is in service. Warning and caution references have been made in this manual and should be adhered to for smooth operation of the burner.
  • Page 7: Specifications

    Q Series Full Mod Linkageless - Standard Specifications Minimum Gas Pressure Required in Inches Water Column, by Gas Train Air Inlet Pressure Rating and Pipe Size Furnace Burner Gas Input Blower Orifice Size @80% Pressure Model MBtu/hr Motor HP 1 PSI Inlet Rated UL Trains 10 PSI inlet Rated UL Trains Eff.
  • Page 8: Dimensions

    ØN ØM ØK 60° 30° 45° 90° Q Series Full Modulation Linkageless Standard Dimensions Accompanying dimensions are for layout purposes only. Burner Model Length in inches Overall burner length 28 3/4 Width in inches Center line to left side 12 1/2 15 5/16 Center line to right side 5 5/8...
  • Page 9: Spare Parts List

    Q Series Spare Parts List PART DESCRIPTION - COMMON PARTS BURNER SIZE PART NUMBER Ignition Transformer Q6 & Q8 832-04117-000 Light Indicator, White Q6 & Q8 881-00136 Light Indicator, Red Q6 & Q8 881-00137 Light Indicator, Green Q6 & Q8 881-00138 Light Indicator, Amber Q6 &...
  • Page 10 Q Series Spare Parts List Continued PART DESCRIPTION - GAS TRAIN COMPONENTS GAS TRAIN OPTION PART NUMBER Regulator, Maxitrol RV 1 1/2” All Standard Pressure 817-00622 Valve, Gas Diaphragm 1 1/2” All Standard Pressure 940-01090 Bleed, Used with Gas Diaphragm Standard on All 940-01373 Valve, Gas Solenoid 1 1/2”...
  • Page 11: Introduction

    Introduction CHAPTER 1 Q series burners are completely assembled, wired, and tested at the factory. Caution Only factory authorized burner service personnel should start up, adjust, or service this equipment. The operator must be familiar with the individual functioning of all controls to understand the operations and procedures described in this manual.
  • Page 12: Control Panel

    Introduction 1.2 — Control Panel The Q burner control panel has the control switch, status indicator lamps and LMV37 remote display mounted on the panel exterior. The LMV37 control base, power supply, fusing and terminal strips are mounted on a subbase inside the panel.
  • Page 13: Burner Control And Air Delivery

    Introduction 1.3 — Burner Control and Air Delivery 750-00533-000 Burner Control and Air Delivery FIGURE 1-2. Item Component Details LMV37 Control Combined flame-safeguard (FSG) and fuel-air-ratio-controller Fuse holders Motor and control circuit fusing Terminal Strip Field wiring interface Power Supply 24Vdc for motor control speed input DC modulation control The unit is fully modulated in response to the command signal sent from the LMV37.
  • Page 14: Direct Spark System

    Introduction 1.4 — Direct Spark System 750-00531-000 Direct Spark System FIGURE 1-3. Item Component Details Ignition Transformer Step up secondary high voltage ignition transformer Ignition Cable 25KV high tension ignition wire. Igniter ø1/8" electrode with quick connect 1.5 — Firing Head Access to the firing head is provided by the side access panel.
  • Page 15 Introduction UV SCANNER BURNER HOUSING GAS MANIFOLD ELECTRODE BAFFLE PLATE 750-00509-001 ORIFICE PLATE Burner Housing with a UV Scanner FIGURE 1-4. ELECTRODE SPRING PIN LOCK WASHER ORIFICE PLATE LOCK WASHER UV SCANNER STAND OFF BAFFLE WELDMENT LOCK WASHER SCREW 750-00517-001 SCREW Burner Housing, Exploded View FIGURE 1-5.
  • Page 16: Gas System

    Introduction 1.6 — Gas System Gas is introduced into the combustion zone through multiple ports in the circular manifold. The full modulation burner's LMV37 controls both the combustion air and fuel metering: it meters the fuel in proportion to fan speed by adjusting the servo-driven gas metering butterfly valve.
  • Page 17 Introduction The control then powers the ignition electrode and initiates flame. The UV scanner and control confirms flame presence and the burner progresses to main-flame operation. Main flame continues while flame is proven; the external limit switches confirm good operating conditions, and a call for heat exists. During main flame, the LMV37 receives a modulation input signal from a separate modulating controller that directs the LMV37 to provide more or less heat.
  • Page 18 Introduction 750-437 Q Series Full Modulation...
  • Page 19: Installation

    Installation CHAPTER 2 2.1 — Burner Requirements Warning Proper installation requires the following: • Sufficient air supply - allow enough clearance at the bottom of the burner to allow the burner's fan to draw the high-fire air volume without difficulty. •...
  • Page 20: Draft Conditions

    Installation 2.3 — Draft Conditions Automatic over-fire draft control or barometric draft regulators are not usually required except where the system has a tall chimney. The exact height of a chimney requiring draft control is indeterminate, but draft regulation is seldom needed for chimneys less than 50 feet high, especially with Scotch Marine or sealed firebox boilers.
  • Page 21 Installation Combustion Combustion Burner Chamber Min. Chamber Min. (in.) (in.) (in.) Size Width (in.) Length (in.) Q6-055 Q6-075 Q6-100 Q6-130 Q6-150 Q8-175 Q8-200 Q8-250 Non-Firetube Combustion Chamber Dimensions FIGURE 2-1. 2.5.2 — Firetube Applications Burner Model Boiler HP A (in.) B (in.) Q6-055 Q6-075...
  • Page 22 Installation 2.6 — Refractory Front Plate Requirements A dry oven refractory is required only to protect surfaces not adequately protected by free circulating water. Basic objectives of refractory installation include: • Provide adequate combustion space • Avoid flame impingement • Protect surfaces not adequately water cooled •...
  • Page 23 Installation Prepare the boiler front plate and burner insertion as follows: Determine burner mounting height. Locate and scribe a level horizontal centerline across the mounting face. Locate and scribe a vertical centerline. Be sure stud locations line up where studs will have full support. If they don’t, or if the opening is too large, a steel adapter plate, 3/8”...
  • Page 24: Support Bracket Installation

    Installation 2.7 — Support Bracket Installation Once the burner is installed, it must be supported by a suitable weight bearing surface. The burner is designed to use the supplied support bracket kit number 880-06384-000. The bracket should be mounted to the burner with the kit-supplied hardware.
  • Page 25: Optional Ducted Combustion Air

    Installation 2.9 — Optional Ducted Combustion Air An optional adapter port and slotted side panel allow combustion air to be ducted into the burner. The Q6 arrangement is a 4" OD inlet while the Q8 is a 6" OD inlet setup. To equip the burner for ducted combustion air (item numbers refer to Figure 2-7): •...
  • Page 26: Combustion Air Inlet Orifice Plate Installation

    Installation 2.10 — Combustion Air Inlet Orifice Plate Installation The Q burner size 6 and 8 use air-inlet-orifice plates to limit combustion air to the maximum firing rate needed with respect to an application. The Q6 has a maximum rating of 1,500,000 BTU/HR. When used for the maximum rate an air-inlet-orifice plate is not used.
  • Page 27: 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 28 Installation 2-10 750-437 Q Series Full Modulation...
  • Page 29: Operation

    Operation CHAPTER 3 NOTE: Separate modulating load controller required for operation. 3.1 — Preparations for Starting The following items must be satisfied before any attempt is made to operate the burner: • Electric, fuel, water, and vent stack connections are complete and all connections are confirmed tight. •...
  • Page 30: Burner Sequence Overview

    Operation circuit. For optimal efficiency, the controller used should be capable of PID load control. The purge rate, ignition position, minimum firing rate, maximum firing rate and fuel-air ratio throughout the firing range is determined by settings made in the Siemens LMV37 display. Refer to the Siemens LMV37 operation manual for further information.
  • Page 31 Operation Normal automatic operation is detailed in Table 3.1 and the corresponding AZL indications are shown in Fig 3-1. Normal Automatic Sequence Of Operation TABLE 3- 1. LMV37 AZL DISPLAY Sequence Note Phase Action INDICATOR TEXT Standby Standby No call for heat exists Gas press.
  • Page 32 Operation 3.2.2 — Standby The burner is in standby and ready to respond to a call for heat when • All power supply switches are closed and power is present at the control panel as indicated by the burner's illuminated white “power” light. •...
  • Page 33 Operation {Ph70} = The safety shutoff valves are de-energized/closed and the burner's "Fuel" lamp turns off. {Ph72} = Traveling to post-purge position - Airspeed ramps up to high-fire air delivery rate {Ph74} = Mandatory-post-purge time - High-fire air post-purges the heat-exchanger for the minimum-time requirement.
  • Page 34: Gas Pressure Regulator Setup

    Operation Reference the “LMV Troubleshooting” section duplicated in this manual for additional “{Loc. C}” error code and “{Loc.d}” diagnostic information. 3.3 — Gas Pressure Regulator Setup To determine the initial pressure setting of the gas pressure regulator Burner Manifold Pressure* TABLE 3- 2.
  • Page 35 Operation [8B] TRAIN BURNER INLET 1/2” 1/2” Gas Train Leak Test FIGURE 3-2. Caution Before opening the manual gas shutoff valves, read the regulator instructions carefully. Open the shutoff valve slowly to allow inlet pressure to build up slowly in the regulator until it is fully pressurized. Opening the shutoff valve too quickly will damage the regulator.
  • Page 36 Operation 2. TURN THE BURNER SWITCH ON. If the burner blower does not start: If the display continues to show {OFF} with the burner switch ON, then close the manual shutoff cock [1]. Troubleshoot the limit circuit and correct the situation so that the AZL “Heat request from controllers” LCD bar beneath the icon turns solid with when the burner switch is turned ON.
  • Page 37: Combustion Emissions And Efficiency

    Operation 5. RESET MANUAL VALVE OPEN/CLOSE POSITIONS BEFORE RESUMING NORMAL OPERATION. Confirm: •Manual-leak test valves [8A] and [8B] are closed. •All safety shutoff valves are operating normally. •Confirm manual cocks [1] and [7] are open. 3.5 — Combustion Emissions and Efficiency The Q burner should be tuned so combustion results match the respective firing rate range in Table 3- 4: Emissions Guidelines TABLE 3- 4.
  • Page 38: Lmv3 Settings

    Operation Stack heat loss can be reduced by (a) decreasing stack temperature through improved heat transfer or (b), decreasing the flue gas volume by decreasing excess combustion air. A certain amount of excess air is necessary to complete combustion. See Table 3- 4 for excess air guidance. Stack temperatures vary by system type but in clean, well-tuned vessels you may expect the following: Hot Water Vessels: Stack temperature is typically 75-100°...
  • Page 39 Operation AZL Display FIGURE 3-4. 3.6.1 — Password Entry / Login With power on (panel's white indicator is illuminated) and Burner switch in the OFF position, the control displays: {OFF} Reset any errors by holding the (reset) button for 1 to 3 seconds. To access LMV3 parameters, you'll need to enter the password “YYYYY”.
  • Page 40 Operation Press ( enter) to accept the value. The display cursor position advances to accept the second character: Press (-) then ( enter) four more times to enter “Y” five times; the sixth underscore will be flashing following entry of the fifth “Y”: Press ( enter) to enter the password.
  • Page 41 Operation 3.6.2 — Initial Fuel-Curve Point Adjustments Notes: • You must be password entered to make changes to curve point values. • The gas and air set values presented in this instruction are for example only. • Air-fan speed is adjusted with the (VSD / F & A) buttons. •...
  • Page 42 Operation B) Advance control to standby PH12 From the {400: Set} screen, press ( enter) and the control displays: {run} Press ( enter) again and the control displays: {Ph12} = Standby Test P0 Ignition Point NOTE: The fan speed is measured in percentage. The gas metering valve is measured in degrees open. At P0 light off: The Q-burner-fan speed should be approximately 20-30% The gas-metering-valve angle should be between 2 - 12°...
  • Page 43 Operation D) Access the P0 parameter With the display showing {OFF} Press (VSD / F & A) to enter parameters and the display shows: {400: SEt} (“400” flashing) press ( enter) and control displays: {run} Press (ESC / - & +) and the control prompts you with the P0 setting: {P0: : GG.c} where “GG.c”...
  • Page 44 Operation {400: SEt} “400” flashing press ( enter) display shows: {run} press ( enter) display shows: {PH 12} = stand by Turn the burner switch ON, and the burner progresses through pre-ignition phases and trial for flame: {Ph22} = Fan motor on {Ph24} = Traveling to pre-purge position {Ph30} = Pre-purge countdown timer (30 sec) {Ph36} = Traveling to ignition position...
  • Page 45 Operation When the setting is satisfactory, wait for the setting value to flash: flashing verifies the LMV3 has entered and saved the setting values. Press (+) to advance to P2. Repeat this step for points P2 through P9- adjusting the air and gas at each point so that combustion-analyzer results agree with table 3.3 in section 3.5.
  • Page 46 Operation Press ( enter) to perform the backup and the “1” shifts to the right edge and stops flashing: Wait approximately 8 seconds and display changes to a non-flashing “0”. Backup is complete. Press (ESC / - & +): {bAC_uP} Press (ESC / - &...
  • Page 47: Test And Set Gas Pressure Switches

    Operation 3.7 — Test and Set Gas Pressure Switches Refer to the diagram below when following this procedure. [8B] TRAIN BURNER INLET 1/2” 1/2” Gas Train FIGURE 3-5. 3.7.1 — Test the low-gas pressure switch [3]. Note: The low-gas pressure switch is typically set to 50% of the regulator set point. LGPS SETTING = Open manual valve [7] and light the burner.
  • Page 48: Optional Heat Timer Mcf Load Control

    Operation 3.8 — Optional Heat Timer MCF Load Control 3.8.1 — Electrical Connections: POWER ® 120 VAC (BLACK) SYSTEM = BOILER ACTIVATION OPERATING TARGET = (YELLOW) CONTROL DECREASE INCREASE SYSTEM Decrease D ecrease System stem COMMON (RED) X5-03.4 OPEN (WHITE) X5-03.3 CLOSE (BLUE) X5-03.2...
  • Page 49 Operation 3.8.2 — Initial Setup and Setpoint Adjustment Startup Menus HEAT-TIMER CORP. DIGI-SPAN ELITE Loading Default STANDARD V1.00 c 2008 Values... English Metric CONTROL MODE: APPLICATION: -SENSOR TYPE-- Outdoor Reset Heat-BreakOnRise Temp. 230F Set Point Cool-MakeOnRise Pres. 30psi Pres. 100psi Pres.
  • Page 50 Operation 3-22 750-437 Q Series Full Modulation...
  • Page 51: 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. Prior to placing the burner and heat exchanger into initial service, a complete inspection should be made of all controls, connecting piping, wiring and all fastenings such as nuts, bolts and setscrews to be sure that no damage or misadjustments occurred during shipping and installation.
  • Page 52 Adjustments 4.2.3 — Gas Flow The volume of gas is measured in cubic feet as determined by a meter reading. The gas flow rate required depends on the heating value (Btu/cu ft.). The supplying utility can provide this information as well as pressure correction factors.
  • Page 53: 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.
  • Page 54: Control System

    Maintenance Electrical and mechanical devices require systematic and periodic inspection and maintenance. Any “automatic” features do not relieve the operator from responsibility, but rather allow freedom from certain repetitive chores, providing time for upkeep and maintenance. Unusual noise, improper gauge reading, leak, sign of overheating, etc., can indicate a developing malfunction, requiring corrective action.
  • Page 55: Ignition Electrode

    Maintenance 5.5 — Ignition Electrode ORIFICE PLATE UV SCANNER COVER BAFFLE PLATE BAFFLE PLATE ORIFICE PLATE ELECTRODE (TIP IS FLUSH WITH FACE OF BAFFLE PLATE) ELECTRODE BAFFLE PLATE ELECTRODE ORIFICE PLATE 750-00510-001 Ignition Electrode Gap FIGURE 5-1. The ignition transformer requires little attention other than making sure the ignition wire is firmly attached to the transformer and the electrode.
  • Page 56: Firing Rate Controls

    Maintenance 5.7 — Firing Rate Controls Make sure all connections are tight. Adjust if necessary. Perform a combustion test as explained in Chapter 4, and readjust the burner if necessary. 5.8 — Burner Mounting Inspection The seal between the burner flange and furnace front plate must not permit combustion gases to escape. Periodic inspection is important.
  • Page 57: Extended Shutdown

    Maintenance 5.10.1 — Blower Motor Amp Draw Check Motor supply voltage must not vary more than 10 percent from nameplate ratings. At initial startup and at least once a year thereafter, check the motor current with an ammeter while the burner is in high fire position. If the reading exceeds the nameplate rating, determine the cause and correct it immediately.
  • Page 58: Recommended Maintenance Schedule

    Maintenance 5.12 — Recommended Maintenance Schedule Maintenance Schedule TABLE 5-1. 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 59: 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.
  • Page 60: 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 61: Troubleshooting - General

    Troubleshooting 6.3 — Troubleshooting - General Troubleshooting TABLE 6- 1. Problem Possible Causes Burner Does Not Start 1. No voltage at the LMV3 power input terminals. a. Main disconnect switch open. b. Blown control circuit fuse. c. Loose or broken electrical connection. 2.
  • Page 62: Lmv3 Diagnostics

    Troubleshooting Problem Possible Causes Burner Stays in Low Fire 1. Pressure or temperature above modulating control setting. 2. Defective modulating control. Shutdown Occurs During 1. Loss or stoppage of fuel supply. Firing 2. Defective fuel valve, loose electrical connection. 3. Flame detector weak or defective. 4.
  • Page 63 Troubleshooting Each fault code listed has indexes that provide additional information about the fault: Index 01 = Error code Index 02 = Diagnostic code Index 03 = Error class (not used in North America) Index 04 = Phase Index 05 = Start number Index 06 = Load Index 07 = Fuel (LMV36 only) Often index 05 and index 06 will display a value of “._._”.
  • Page 64 Troubleshooting 6.4.1 — LMV3 Complete Error Code List (from Siemens LMV3 Technical Instruction 7/19/17; used by permission) LMV3 Error Codes TABLE 6- 2. Error Diag. Code Description Corrective Action Code Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes. Check for a loose connection between the LMV3 and AZL23.
  • Page 65 Troubleshooting Error Diag. Code Description Corrective Action Code Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes. Any # Loss of flame 1) Increase the setting of parameter 186:01 (fuel 0) or 187:01 (fuel 1). This increases the Loss of flame FFRT.
  • Page 66 Troubleshooting Error Diag. Code Description Corrective Action Code Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes. Air pressure failure (speed-dependent air A fault occurred related to the speed-dependent air pressure switch. See diagnostic codes Any # pressure switch) for more information.
  • Page 67 Troubleshooting Error Diag. Code Description Corrective Action Code Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes. Any # Safety loop / burner flange Safety loop / burner flange open Safety loop / burner flange open / prevention of startup Safety loop...
  • Page 68 Troubleshooting Error Diag. Code Description Corrective Action Code Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes. Any # Internal error Any # Internal error Any # Internal error If the fault occurs continuously, replace the LMV3.
  • Page 69 Troubleshooting Error Diag. Code Description Corrective Action Code Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes. A special position (home, prepurge, ignition, or postpurge) is undefined for one of the Any # Special position undefined actuators / VSD See diagnostic codes for more information.
  • Page 70 Troubleshooting Error Diag. Code Description Corrective Action Code Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes. An error occurred while attempting to standardize the speed of the VSD. See diagnostic Any # Error during VSD's speed standardization codes for more information.
  • Page 71 Troubleshooting Error Diag. Code Description Corrective Action Code Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes. Any # Speed error VSD A VSD speed error occurred. See diagnostics codes for more information. Lower control range limitation of control See error code 80, diagnostic code 1.
  • Page 72 Troubleshooting Error Diag. Code Description Corrective Action Code Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes. All SQM33… actuators must travel outside of their 0-90° operating range before starting up Any # Referencing error on actuators the burner in order to "reference"...
  • Page 73 Troubleshooting Error Diag. Code Description Corrective Action Code Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes. Any # Error relay supervision External power supply contact (ignition transformer - X4-02.3) External power supply NO contact (fuel...
  • Page 74 Troubleshooting Error Diag. Code Description Corrective Action Code Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes. Any # Internal error contact sampling Stuck-at failure (pressure switch-min - X5-01.2) Stuck-at failure (pressure switch-max / POC - X5-02.2)
  • Page 75 Troubleshooting Error Diag. Code Description Corrective Action Code Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes. Any # Internal error EEPROM access Any # Internal error EEPROM access Reset the fault and check to make sure the last parameter that was viewed / changed is set properly.
  • Page 76 Troubleshooting Error Diag. Code Description Corrective Action Code Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes. An error occurred while attempting to perform a backup or restore via parameter 050. See Any # Internal error - backup / restore diagnostic codes for more information.
  • Page 77 Troubleshooting Error Diag. Code Description Corrective Action Code Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes. Any # TUV test A fault occurred during the TUV test. See diagnostic codes for more information. The TUV test can only be started in phase 60 (operation).
  • Page 78 Troubleshooting Error Diag. Code Description Corrective Action Code Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes. Any # Internal error If the fault occurs continuously, replace the LMV3. Internal error watchdog reset Any # Manual locking...
  • Page 79: Restoring Lmv3 Parameters

    Troubleshooting Error Diag. Code Description Corrective Action Code Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes. Inadmissible combination of units (LMV3 Reset the LMV3. If the fault occurs continuously, replace the LMV3 and / or AZL23. / AZL23) Any # Version compatibility LMV3 / AZL23...
  • Page 80 Troubleshooting Press ( enter) to select the restore process; the display shows: Press (+) to shift the value in change mode 1 position to the left. The display shows 1 } with “1” flashing Note: to detect potential display errors the value is displayed 1 place shifted to the left. Press ( enter) to activate the restore process;...
  • Page 81: Default Settings

    Troubleshooting 6.6 — Default Settings Default settings for certain key parameters are listed below. Q Burner Parameter Guide TABLE 6- 3. Option Description Value OEM Password YYYYY 186.01 Drop out delay of flame signal Burner Operating Mode Gas: Safety time 1 (TSA1) Time to respond to pressure faults in TSA1 &...
  • Page 82 Troubleshooting 6-24 750-437 Q Series Full Modulation...
  • Page 83: Startup/Service Report

    Startup/Service Report Startup/Service Report (required to validate warranty) 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 CB to validate burner warranty. Startup Date: Serial Number: Burner Model:...
  • Page 84 Contacts Cleaver-Brooks Technical Support: Phone: 800-250-5883 Email: cleaverbrooks.com 750-437 Q Series Full Modulation...
  • Page 85: Warranty Policy

    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 86 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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