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CLEAN BURN CB-1500 - User Manual

CLEAN BURN CB-1500
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OPERATOR'S MANUAL
CLEAN BURN MODELS: CB-1500 and CB-2500 MULTI-OIL FURNACES
with CB-500 Series Burner
PUBLICATION DATE: 6/1/10, Rev. 4 CLEAN BURN PART # 43161
WARNING: DO NOT assemble, install, operate, or maintain this equipment without first
reading and understanding the information provided in this manual. Installation and
service must be accomplished by qualified personnel. Failure to follow all safety precautions
and procedures as stated in this manual may result in property damage, serious personal injury
or death.
CLEAN BURN, INC. • 34 Zimmerman Road • Leola, PA 17540 • U.S.A.
Copyright © 2009 Clean Burn, Inc. All rights reserved. No part of this publication may be reproduced, or distributed without
the prior written permission of Clean Burn, Inc. 34 Zimmerman Road, Leola, PA 17540. Subject to change without notice.
The Clean Burn logo is a trademark of Clean Burn, Inc. All other brand or product names mentioned are the registered
trademarks or trademarks of their respective owners.
230 V / 50 Hz
I88942
FOR YOUR SAFETY -
DO NOT STORE GASOLINE
OR OTHER FLAMMABLE VAPORS AND LIQUIDS
IN THE VICINITY OF THIS OR ANY APPLIANCE!!
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Table of Contents

Questions and Answers

  • M
    Mrs. Meghan Tanner MDAug 31, 2025
    Why does my CLEAN BURN Furnace burner shut off on reset periodically?
    • J
      jesse73Aug 31, 2025
      If your CLEAN BURN Furnace burner ignites and runs, but shuts off on reset periodically, such as overnight, consider these potential causes: * Air may be entering the suction oil line due to leaks at the fittings. Perform a vacuum test on the pump as described in Section 5. Re-install and properly seal the suction line fittings to prevent air leaks. * Air may be trapped in a high point in the pressure oil line. Follow the instructions in Section 4 to bleed the air out of the pressure oil line.
  • P
    patricia97Sep 4, 2025
    How to fix a CLEAN BURN CB-1500 Furnace when the burner won’t run and the green power light is off?
    • D
      Douglas HicksSep 4, 2025
      If the CLEAN BURN Furnace burner won’t run and the green power light is not on, it could be due to: * An open circuit breaker or main switch. Close the circuit breaker or switch. * A blown fuse or breaker. An electrician should check the electrical system. * A damaged or improperly plugged-in burner cable. Check the burner cable.
  • C
    carolynrodriguezSep 7, 2025
    What to do if the CLEAN BURN CB-1500 blower motor will not run?
    • M
      Michael MarksSep 7, 2025
      If the CLEAN BURN Furnace blower motor will not run: * Check the blower motor wiring. If it's not wired correctly, refer to the wiring diagram and ladder schematic in Appendix B. Follow the directions in Section 6 to test for proper fan operation. If the fan still does not operate, shut OFF power to the furnace and call your Clean Burn dealer for service. * The blower or fan switch may be defective and need to be replaced. * The blower motor may have overheated and shut down on thermal reset. Check the voltage and amperage draw of the blower motor, and call your dealer if the problem continues.
  • A
    Anita JohnsonSep 10, 2025
    Why does the CLEAN BURN Furnace blower motor run all the time?
    • D
      dylan57Sep 12, 2025
      If the CLEAN BURN Furnace blower motor runs all the time, the blower motor circuit may be wired incorrectly. Refer to the wiring diagram and ladder schematic in Appendix B to troubleshoot the blower motor circuit.
  • T
    troysimpsonNov 14, 2025
    What to do if CLEAN BURN Furnace pump won't prime but the motor is running?
    • L
      lawsonmirandaNov 14, 2025
      If the CLEAN BURN Furnace pump won't prime but the pump motor is running, consider the following: * Check for leaks in the suction line, ensuring all fittings are airtight as per Section 4. * Ensure the pump is installed to fill with oil during priming. The pump head should be filled with oil before starting, as described in Section 5. * If the pump gears are dry, follow the procedure in Section 5 to fill the oil line and prime the pump. * A damaged pump seal can prevent priming. With the pump off, check for oil at the pump shaft; if present, replace the pump or seal. * Verify the ball valve on the suction line is open. * A dirty canister filter can cause priming issues. Clean it according to Section 9. * Similarly, a dirty check valve can be problematic; refer to Section 9 ...
  • B
    Blake DoughertyNov 17, 2025
    What to do if CLEAN BURN Furnace pump won't prime and the motor is not running?
    • T
      Theresa PittsNov 17, 2025
      If the CLEAN BURN Furnace pump won't prime and the pump motor isn't running, here’s what you can check: * First, ensure there is power to the pump circuit from the burner. Start the burner and adjust the air pressure regulator to 15 PSI. * If the amber “pump” light on the burner turns ON, then the pump circuit on the burner is working correctly. If that's the case, you should refer to the wiring diagram and ladder schematic in Appendix B to troubleshoot the pump circuit from the burner to the pump. * If the amber “pump” light does NOT turn ON, then there is an issue with the pump circuit in the burner. With the burner running, check for power at the brown wire on the air pressure switch. If there is NO power at the brown wire, you should replace the burner motor. If there is...
  • D
    Diane PittmanNov 20, 2025
    What to do if the CLEAN BURN CB-1500 Furnace burner won’t run but the green power light is on?
    • T
      Tricia MartinNov 20, 2025
      If the CLEAN BURN Furnace burner won’t run but the green power light is on, several issues could be the cause: * The oil primary control may have shut down on a safety reset. In this case, you should follow the directions in Section 7 to reset the oil primary control. * The wall thermostat may not be working. Check the wall thermostat and its cable. * The heater block might not be heating up. Feel the back of the burner; it should be around 60 oC (140 oF). If it's not hot, wait 15 minutes and check again. Also, inspect the block heater thermostat and element, referring to the wiring diagram and ladder schematic in Appendix B. * The F-120 proving switch may not have closed. If the block is hot, check for power at the red wire on the F-120 switch. If there's no power, consult the wi...
  • R
    Russell SolisNov 23, 2025
    What to do if CLEAN BURN Furnace burner ignites but shuts off quickly?
    • E
      Erin LoganNov 24, 2025
      If your CLEAN BURN Furnace burner ignites but won't stay running and shuts off on reset within 15 seconds, consider these potential causes: * There might be a fuel delivery problem. You should follow the procedures listed in the next problem. * The cad cell might be dirty. Clean it and check the condition of the cad cell and its wires. * Cad cell wires could be loose. Ensure the blue and black wires are properly connected to terminals 11 and 12 in the primary base. * The cad cell or its wires may be damaged. Replace them if necessary. * The primary control might not be receiving the correct µA signal from the cad cell. Measure the photo current with a direct current ammeter in series with the photo unit. With a flame, it should be between 50 µA and 210 µA at 240V. Without a flam...
  • M
    Mark JohnsonNov 27, 2025
    Why does my CLEAN BURN Furnace burner shut off on reset during the day or night?
    • K
      Karen HarrisNov 27, 2025
      If your CLEAN BURN Furnace burner ignites and then shuts off on reset later in the day or night, here are a few things to check: * Air in the fuel supply could be the issue. Try priming the pump. If the pump won't prime or there's air in the oil stream, follow the steps for when the “Pump will not prime.” * The primary control may not be receiving the correct µA signal from the cad cell. Check the µA signal, following the procedures on page 10-4. * Insufficient air pressure can cause this issue. Adjust the air regulator for the correct air pressure, as described in Section 5. Do not turn off the air compressor while the furnace is running; if you do turn it off at night, also turn the wall thermostat to OFF. * A cold heater block can prevent restarting. Do not shut off power to th...

Summary

Declaration of Conformity

Manufacturer

Identifies Clean Burn Inc. as the manufacturer of the equipment.

European Representative

Provides contact information for the authorized European distributors.

EMC Competent Body

Names TÜV Rheinland Product Safety GmbH as the EMC competent body.

Safety Standard

Lists safety standards and regulations the machinery complies with.

EMC Standards

Lists EMC standards for electromagnetic compatibility the machinery adheres to.

Section 1: Introduction

Guide to this Manual

Provides an overview of the manual's content and structure.

For Your Safety...

Details various safety warnings and precautions for furnace operation.

Guidelines for Furnace Usage

Outlines approved fuels, usage restrictions, and environmental compliance.

Guidelines for Used Oil Tanks

Specifies safety guidelines for storing and handling used oil tanks.

Safety Labels

Identifies and explains the purpose of various safety labels on the furnace.

Section 2: Unpacking

Removing the Shipping Crate

Instructions for safely removing the furnace from its shipping crate.

Unpacking and Inspecting All Components

Steps for unpacking and verifying all furnace components against a list.

Furnace Component List

An itemized list of all components included with the furnace shipment.

Unpacking Items Packed Inside the Furnace

Procedure for accessing and removing components packed within the furnace.

Section 3: Furnace Assembly

Understanding Assembly

Overview of the furnace assembly process and steps involved.

Required Tools and Materials

Lists necessary tools and materials for furnace assembly.

Installing the Blower Assembly

Step-by-step instructions for installing the blower assembly.

Wiring the Blower Motor

Guidance on wiring the blower motor to the furnace's electrical system.

Determining the Hot Air Discharge Configuration

How to determine the correct air discharge setup for different applications.

Installing the Hot Air Discharge Components

Instructions for installing louvers and blank cover panels for air discharge.

Installing the Energy Retention Disc

Procedure for installing the energy retention disc inside the combustion chamber.

Installing the Burner

Steps for installing the burner assembly, including nozzle and electrode checks.

Mounting the Burner on the Hinge Bracket

How to mount the burner assembly onto the furnace's hinge bracket.

Installing the Connector Block, Oil Line Tubing, and Air Line Tubing

Guidance on installing the connector block and associated tubing.

Locking the Burner Into Firing Position

Securing the burner in its correct firing position and connecting electrical cable.

Section 4: Furnace Installation

Understanding Installation

Overview of the furnace installation process and its key steps.

Important Safety Guidelines for Safe Installation

Critical safety rules and compliance requirements for furnace installation.

Important Notes to the Electrician

Specific electrical installation notes and warnings for qualified electricians.

Selecting a Location

Guidelines for choosing a safe and appropriate location for furnace installation.

Mounting the Furnace

Instructions for mounting the furnace via ceiling, raised platform, or floor.

Oil Tank Installation Specifications

Requirements and guidelines for installing the used oil supply tank.

Installing the Tank Vent and Emergency Vent

Procedures for installing tank vent and emergency vent systems.

Installing the Metering Pump

Steps for preparing and installing the oil metering pump, including mounting options.

Installing the Suction Oil Line Components

Guidance on installing the suction oil line to ensure airtightness.

Installing the Pressure Relief Oil Line Back to the Tank

Instructions for plumbing the pressure relief oil line back to the tank.

Installing the Pressure Oil Line Components

Details on installing the pressure oil line from the pump to the furnace.

Installing the Compressed Air Line

How to connect the compressed air line to the furnace.

Installing the Stack

General guidelines and specifications for installing the furnace stack.

Installing the Interior Stack

Procedures for installing the single-wall interior stack components.

Installing the Barometric Damper

How to install and position the barometric damper for draft control.

Installing the Stack Penetration

Guidelines for safely penetrating walls/ceilings with the stack.

Installing the Exterior Stack

Instructions for installing double-wall insulated exterior stack components.

Installing the Stack Cap

How to install the Class A stack cap for optimal airflow.

Installing the Optional Draft Inducer

Instructions for installing an optional draft inducer for improved draft.

Installing the Draft Inducer

Procedures for mounting the draft inducer on the stack.

Wiring the Draft Inducer for Normal Operation

Wiring instructions for the draft inducer based on building exhaust fans.

Installing the Wall Thermostat

Steps for installing the thermostat and connecting it to the furnace.

Inspecting the Furnace Installation

Final inspection steps to ensure compliance and correct installation.

Section 5: Metering Pump Priming

Understanding Metering Pump Priming

Overview of the metering pump priming process and its importance.

Required Tools and Materials

Lists tools and materials needed for oil pump priming.

Priming the Metering Pump

Step-by-step procedure for priming the metering pump to remove air.

Activating the Pump

How to use the priming switch to activate the oil pump.

Vacuum Testing the Oil Pump

Procedure for testing the oil pump and suction line for leaks using vacuum.

Section 6: Starting and Adjusting the Burner

Understanding Burner Startup and Adjustment

Overview of the procedures for starting and adjusting the burner.

Preparing the Burner for Startup

Steps to prepare the burner for initial startup, including preheating and air regulator adjustment.

Starting the Burner

Instructions for starting the burner and adjusting air pressure.

Observing the Flame Length

How to visually inspect and adjust the flame length for proper operation.

Fine Tuning the Combustion Air Band

Steps for fine-tuning the combustion air band for optimal flame characteristics.

Checking for a Smokeless Burn

How to check for and achieve a smokeless burn, including instrument readings.

Checking the Operation of the Blower Motor

Verifying the correct operation sequence of the blower motor.

Section 7: Resetting the Furnace and Burner

Understanding Furnace;Burner Shutdowns

Explains common shutdown situations and troubleshooting steps.

Resetting the Oil Primary Control

Procedure for resetting the oil primary control after a shutdown.

The Blower;Fan Switch

Description of the blower/fan switch operation and function.

The Hi-Temp Limit Switches

Explanation of the function of hi-temp limit switches and their role.

Understanding the Function of the L-200 Hi-Temp Limit Switch

Details on the L-200 hi-temp limit switch and its auto-reset function.

Understanding the Function of the L-290 Auxiliary Auto-Reset Hi-Temp Limit Switch

Explanation of the L-290 auxiliary hi-temp limit switch.

Section 8: Adjusting the Draft Overfire

Checking for Correct Draft Overfire

How to check and measure the furnace draft overfire.

Understanding the Importance of Draft

Explains the critical role of proper draft in furnace operation.

Adjusting the Barometric Damper

Steps to adjust the barometric damper to achieve correct draft overfire.

Solving Draft Overfire Problems

Common draft overfire issues and their potential causes and solutions.

Understanding the Effect of Exhaust Fans on Draft

How building exhaust fans can impact furnace draft and cause backdraft.

Checking Draft Overfire to Determine Severity of Backdraft

Procedure to diagnose backdraft severity using draft overfire readings.

Installing a Make-up Air Louver

Guidelines and procedures for installing make-up air louvers to mitigate backdraft.

Section 9: Maintenance

Understanding Maintenance

Importance of regular maintenance for peak furnace performance and longevity.

Periodic Burner Inspection

Guidelines for regularly inspecting the burner's operation and components.

Cleaning the Canister Filter

Step-by-step instructions for cleaning the fuel canister filter.

Servicing the Metering Pump

Procedures for servicing the oil metering pump, including component replacement.

Cleaning Ash From the Furnace

Detailed instructions for cleaning ash from the combustion chamber and flues.

Cleaning the Check Valve; Screen

Procedure for cleaning the check valve and screen in the oil supply line.

Cleaning the Tank

How to drain water and sludge from the used oil supply tank.

Annual Burner Tune-up

Importance and scheduling of annual burner tune-ups by qualified technicians.

End of Season Maintenance

Final steps to take when shutting down the furnace at the end of the heating season.

Section 10: Troubleshooting

Troubleshooting Flow Chart

A flowchart to help diagnose operational problems by following a sequence.

Troubleshooting Tables

Detailed tables listing problems, causes, and actions for troubleshooting.

Appendix A

Detailed Furnace Specifications

Comprehensive technical specifications for furnace models CB-1500 and CB-2500.

Furnace Technical Specifications

Key technical data including input, fuels, dimensions, and electrical requirements.

Burner Technical Specifications

Specific technical details for the CB-500 burner, including nozzle and motor specs.

Furnace Dimensions

Detailed dimensional drawings and measurements for CB-1500 and CB-2500 furnaces.

Burner Components

Exploded views and part lists for the CB-500 burner assembly.

Removing the Nozzle for Cleaning

Instructions on how to remove the burner nozzle for cleaning.

Cleaning the Nozzle

Procedure for cleaning the burner nozzle to remove blockages.

Appendix B

Wiring Diagrams

Contains various wiring diagrams for furnace, burner, and pump connections.

Furnace Wiring Diagram (CB-1500 & CB-2500)

Detailed wiring diagram for the furnace's electrical system.

Burner Wiring Diagram

Wiring schematic specifically for the CB-500 burner.

Ladder Schematic for CB-1500 & CB-2500 Furnaces

A ladder schematic illustrating the furnace and burner electrical logic.

Metering Pump Wiring Schematic

Wiring schematic for the metering pump's electrical connections.

Appendix C

Additional Installation and Maintenance Requirements

Specific installation and maintenance requirements for UK installations.

Installing a Cover over the Oil;Air Regulators

How to install a protective cover over the burner's oil/air regulators.

Installing a Fire Valve

Procedure for installing a fire valve element above the burner as per BS 5410.

Appendix D

Furnace Service Record

A logbook for recording furnace maintenance activities and service history.

CLEAN BURN CB-1500 Specifications

General IconGeneral
BrandCLEAN BURN
ModelCB-1500
CategoryFurnace
LanguageEnglish

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