CLEAN BURN CB-1750, CB-2500, CB-3250, CB 140 Operator's Manual

OPERATOR'S MANUAL

CLEAN BURN MODELS: CB-1750, CB-2500, and CB-3250

MULTI-OIL FURNACES

with CB-525-S2 BURNER

USED-OIL BURNING

APPLIANCE

ENERGY SYSTEMS

www.cleanburn.com

FOR YOUR SAFETY -

DO NOT STORE GASOLINE

OR OTHER FLAMMABLE VAPORS AND LIQUIDS

IN THE VICINITY OF THIS OR ANY APPLIANCE !!

I88435-D

#MH15393 (N)

LISTED

USED OIL-FIRED

FURNACE

PUBLICATION DATE: 05/12/14, Rev. 14 CLEAN BURN PART # 43195

WARNING: DO NOT assemble, install, operate, or maintain this equipment without rst

reading and understanding the information provided in this manual. Installation and

service must be accomplished by qualied personnel. Failure to follow all safety precautions and procedures as stated in this manual may result in property damage, serious personal injury

or death.

IMPORTANT FOR U.S. INSTALLATIONS: All installations must be made in accordance with state and local codes which may differ from the information provided in this manual. Save these instructions for reference.

IMPORTANT FOR CANADIAN INSTALLATIONS: These instructions have been reviewed and accepted by Underwriters' Laboratories of Canada as being appropriate for the installation of the ULC labelled products

identied herein. The use of these instructions for the installation of products NOT bearing the ULC label and NOT identied herein may result in an unacceptable or hazardous installation.

IMPORTANT FOR CANADIAN INSTALLATIONS: The installation of this equipment is to be accomplished by

qualied personnel and in accordance with the regulation of authorities having jurisdiction and CSA Standard B 139,

Installation Code for Oil Burning Equipment.

CLEAN BURN

WASTE OIL FURNACE

WARRANTY INFORMATION

Clean Burn, LLC, MANUFACTURER, hereby warrants that MANUFACTURER’s products shall be free from defect in material and workmanship under normal use according to the provisions and limitations herein set forth.

MANUFACTURER warrants the heat exchanger/combustion chamber for a period of ten (10) years or 15,000 hours, whichever comes rst), from the date of purchase by the original purchaser, as follows:

If the defect occurs within the rst ten (10 years or 15,000 hours, whichever comes rst), Clean Burn will replace or repair

the heat exchanger/combustion chamber.

MANUFACTURER warrants all other Clean Burn component parts, including the energy retention disk, for a period of

one (1) year from the date of purchase by the original purchaser.

LIMITATIONS:

The obligation of MANUFACTURER for breach of warranty shall be limited to products manufactured by

MANUFACTURER, (1) that are installed, operated and maintained according to MANUFACTURER’s instructions furnished and/or available to the purchaser upon request; (2) that are installed according to all other applicable Federal, State and local codes or regulations; and (3) that the purchaser substantiates were defective in material and workmanship notwithstanding

that they were properly installed and correctly maintained as set forth above and were not abused or misused. The MANUFACTURER may request service records or require photos of the installation or defect.

The obligation of MANUFACTURER shall be limited to replacing or repairing the defective product, at the option of the MANUFACTURER. MANUFACTURER shall not be responsible for any labor or costs or removal or reinstallation of its products and shall not be liable for transportation costs to and from its plant at Janesville, Wisconsin.

Use of parts for modication or repair of the product or any component part thereof not authorized or manufactured by MANUFACTURER specically for such product shall void this warranty.

This warranty shall not apply to any damage to or defect in any of MANUFACTURER’s products that is directly or indirectly

caused by (1) force majeure, Act of God or other accident not related to an inherent product defect; or (2) abuse, misuse or neglect of such product, including any damage caused by improper assembly, installation, adjustment, service, maintenance

or faulty instruction of the purchaser.

Other than as expressly set forth hereinabove, MANUFACTURER makes no other warranty, express or implied, with

respect to any of MANUFACTURER’s products, including but not limited to any warranty of merchantability or tness for a

particular purpose.

And in no event shall MANUFACTURER be responsible for any incidental or consequential damages of any nature suffered by purchaser or any other person or entity caused in whole or in part by any defect in any of MANUFACTURER’s products. Any person or entity to whom this warranty extends and who claims breach of warranty against MANUFACTURER must bring suit thereon within one year from the date of occurrence of such breach of warranty or be forever barred from any and all legal or other remedies for such breach of warranty.

MANUFACTURER is not responsible for and hereby disclaims any undertaking, representation or warranty made by any dealer, distributor or other person that is inconsistent with or in any way more expansive than the provisions of this limited warranty.

Warranty (continued)

This warranty grants specic legal rights and shall be read in conformity with applicable state law. In some jurisdictions,

the applicable law mandates warranty provisions that provide greater legal rights than those provided for herein. In such case, this limited warranty shall be read to include such mandated provisions; and any provision herein that is prohibited

or unenforceable in any such jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or

unenforceability without invalidating the remaining provisions and without affecting the validity or enforceability of such

provision in any other jurisdiction(s).

TRADEMARKS

The Clean Burn logo is a trademark of Clean Burn, LLC. All other brand or product names mentioned are the registered trademarks or trademarks of their respective owners.

Copyright © 2013 Clean Burn, LLC. All rights reserved. No part of this publication may be reproduced, or distributed without the prior written permission of Clean Burn, LLC. 4109 Capital Circle, Janesville, WI 53546. Subject to change

without notice.

TABLE OF CONTENTS

SECTION 1: INTRODUCTION ............................................................................................................ 1-1

Guide to this Manual ..................................................................................................................... 1-1

For Your Safety... ........................................................................................................................... 1-2

Guidelines for Furnace Usage ................................................................................................ 1-4

Guidelines for Used Oil Tanks ............................................................................................... 1-5

Safety Labels .......................................................................................................................... 1-6

SECTION 2: UNPACKING ................................................................................................................... 2-1

Removing the Shipping Crate ....................................................................................................... 2-1

Unpacking and Inspecting All Components .................................................................................. 2-1

Furnace Component List ....................................................................................................... 2-1

Unpacking Items Packed Inside the Furnace 2-2

Warranty Registration .................................................................................................................... 2-2

SECTION 3: FURNACE ASSEMBLY ................................................................................................ 3-1

Understanding Assembly ............................................................................................................... 3-1

Required Tools and Materials ................................................................................................ 3-1

Installing the CB-1750 and CB-2500 Blower Assembly .............................................................. 3-3

Wiring the CB-1750 and CB-2500 Blower Motor ................................................................ 3-4

Installing the CB-3250 Blower Assembly ..................................................................................... 3-6

Mounting the CB-3250 Blower .............................................................................................. 3-6

Installing the CB-3250 Blower Motor on the Blower ............................................................ 3-6

Wiring the CB-3250 Blower Motor ...................................................................................... 3-6

Installing the Motor Pulley, Blower Pulley, and V-Belt ......................................................... 3-8

Installing the Belt Guard and Blower Guard ....................................................................... 3-10

Determining the Air Discharge Conguration ............................................................................ 3-10

Installing the Hot Air Discharge Components ............................................................................. 3-12

Installing the Energy Retention Disc ........................................................................................... 3-14

Installing the Energy Retention Disc on the Combustion Chamber .................................... 3-14

Closing the Furnace Door .................................................................................................... 3-14

Installing the Burner .................................................................................................................... 3-15

Checking the Burner Nozzle and Electrodes ....................................................................... 3-15

Mounting the Burner on the Hinge Bracket ......................................................................... 3-16

Installing the Connector Block, Oil Line Tubing, and Air Line Tubing...................................... 3-17

Installing the Connector Block on the Furnace Door .......................................................... 3-17

Installing the Oil Line Tubing .............................................................................................. 3-17

Installing the Air Line Tubing .............................................................................................. 3-18

Locking the Burner into Firing Position .............................................................................. 3-19

SECTION 4: FURNACE INSTALLATION ......................................................................................... 4-1

Understanding Installation............................................................................................................. 4-1

Selecting a Location ...................................................................................................................... 4-3

Guidelines for Selecting a Location ....................................................................................... 4-3

Mounting the Furnace.................................................................................................................... 4-4

Ceiling Mounting ................................................................................................................... 4-4

Raised Platform Mounting ..................................................................................................... 4-5

Floor Mounting ...................................................................................................................... 4-5

Oil Tank Installation Specications ............................................................................................... 4-7

Installing the Tank Vent and Emergency Vent ....................................................................... 4-8

Installing the Metering Pump ........................................................................................................ 4-9

TABLE OF CONTENTS

Preparing for Installation ....................................................................................................... 4-9

Standard Mounting: Vertical Positioning ............................................................................... 4-9

SECTION 4: FURNACE INSTALLATION (continued) .........................................................................

Alternate Mounting: Horizontal Positioning ................................................................................4-11

Wiring the Furnace and Pump ..................................................................................................... 4-12

Wiring to the Furnace ........................................................................................................... 4-12

Wiring to the Metering Pump............................................................................................... 4-12

Installing the Suction Oil Line Components ............................................................................... 4-13

Installing the Pressure Relief Oil Line Back to the Tank ............................................................ 4-16

Installing the Pressure Oil Line Components .............................................................................. 4-17

Installing the Compressed Air Line ............................................................................................. 4-17

Installing the Stack ...................................................................................................................... 4-18

Stack Design and Specications .......................................................................................... 4-18

Installing the Interior Stack .................................................................................................. 4-21

Installing the Barometric Damper ........................................................................................ 4-21

Installing the Stack Safety Switch For Canadian Installations ............................................ 4-22

Resetting the Stack Safety Switch ................................................................................. 4-23

Understanding the Stack Safety Switch ......................................................................... 4-23

Installing the Stack Penetration ............................................................................................ 4-24

Installing the Exterior Stack ................................................................................................. 4-24

Installing the Stack Cap ....................................................................................................... 4-24

Installing the Optional Draft Inducer ................................................................................... 4-24

Installing the Wall Thermostat ..................................................................................................... 4-26

Replacing the Wall Thermostat Batteries ............................................................................. 4-26

Inspecting the Furnace Installation .............................................................................................. 4-26

SECTION 5: METERING PUMP PRIMING .............................................................................. 5-1

Understanding Metering Pump Priming ........................................................................................ 5-1

Required Tools and Materials ................................................................................................ 5-1

Priming the Metering Pump .......................................................................................................... 5-2

Vacuum Testing the Oil Pump ....................................................................................................... 5-4

SECTION 6: STARTING AND ADJUSTING THE BURNER ................................................... 6-1

Understanding Burner Startup and Adjustment 6-1

Preparing the Burner for Startup ................................................................................................... 6-1

Starting the Burner ........................................................................................................................ 6-3

Checking the Operation of the Blower Motor ............................................................................. 6-4

SECTION 7: RESETTING THE FURNACE AND BURNER .................................................... 7-1

Understanding Furnace/Burner Shutdowns ................................................................................... 7-1

The Oil Primary Control ................................................................................................................ 7-1

Resetting the Oil Primary Control ......................................................................................... 7-1

The Blower Switch ........................................................................................................................ 7-2

The Hi-Temp Limit Switches ........................................................................................................ 7-2

Understanding the L-200 Hi-Temp Limit Switch .................................................................. 7-2

Understanding the L-290 Auxiliary Auto Reset Hi-Temp Limit Switch ............................... 7-2

SECTION 8: ADJUSTING THE DRAFT OVER FIRE .............................................................. 8-1

Checking for Correct Draft Over Fire ........................................................................................... 8-1

Adjusting the Barometric Damper................................................................................................. 8-2

TABLE OF CONTENTS

SECTION 8: FURNACE INSTALLATION (continued) .........................................................................

Solving Draft Overre Problems ........................................................................................... 8-2

Understanding the Effect of Exhaust Fans on Draft .............................................................. 8-3

Checking Draft Overre to Determine Severity of Backdraft ............................................... 8-3

Installing a Make-up Air Louver ............................................................................................ 8-5

SECTION 9: MAINTENANCE .................................................................................................. 9-1

Understanding Maintenance .......................................................................................................... 9-1

Periodic Burner Inspection ............................................................................................................ 9-2

Cleaning the Canister Filter ........................................................................................................... 9-3

Servicing the Metering Pump ........................................................................................................ 9-4

Cleaning the Check Valve ............................................................................................................. 9-5

Cleaning the Tank .......................................................................................................................... 9-6

Cleaning Ash from the Furnace ..................................................................................................... 9-7

Annual Burner Tune-up ................................................................................................................. 9-9

End of Season Maintenance .......................................................................................................... 9-9

Cleaning and Maintaining the Optional draft Inducer ................................................................... 9-9

SECTION 10: TROUBLESHOOTING .................................................................................... 10-1

Flow Chart ................................................................................................................................... 10-2

Troubleshooting Tables ............................................................................................................... 10-3

APPENDIX A

Furnace Technical Specications ................................................................................................. A-1

Burner Technical Specications ................................................................................................... A-2

Furnace Dimensions .................................................................................................................... A-2

Burner Components ...................................................................................................................... A-4

Removing the Nozzle for cleaning ........................................................................................ A-9

CB-1750 Furnace Components .................................................................................................. A-10

CB-1750 Blower Components ................................................................................................... A-12

CB-2500 Furnace Components .................................................................................................. A-14

CB-2500 Blower Components ................................................................................................... A-16

CB-3250 Furnace Components .................................................................................................. A-18

CB-3250 Blower Components ................................................................................................... A-20

Metering Pump Components ...................................................................................................... A-22

APPENDIX B

Wiring Diagrams ...........................................................................................................................B-1

CB-1750 Furnace Wiring Diagram ........................................................................................B-1

CB-2500 Furnace Wiring Diagram ........................................................................................B-2

CB-3250 Furnace Wiring Diagram (115 Volts) .....................................................................B-3

CB-3250 Furnace Wiring Diagram (230 Volts) .....................................................................B-4

Burner Wiring Diagram..........................................................................................................B-5

CB-1750 Ladder Schematic ...................................................................................................B-6

CB-2500 Ladder Schematic ...................................................................................................B-7

CB-3250 Ladder Schematic (115 Volts) ................................................................................B-8

CB-3250 Ladder Schematic (230 Volts) ................................................................................B-9

Metering Pump Wiring Schematic .......................................................................................B-10

CAD Cell Oil Primary Control Data Sheets ........................................................................B-11

TABLE OF CONTENTS

APPENDIX C

Furnace Service Record .................................................................................................................C-1

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

SECTION 1: INTRODUCTION

Guide to this Manual

This manual contains all the information necessary to safely install and operate the Clean Burn Furnace

Models CB-1750, CB-2500 and CB-3250. Consult the Table of Contents for a detailed list of topics covered. You'll nd this manual's step-by-step procedures easy to follow and understand. Should ques-

tions arise, please contact your Clean Burn dealer before starting any of the procedures in this manual.

As you follow the directions in this manual, you'll discover that assembling and operating your new

furnace involves ve basic activities as outlined here:

• UNPACKING ..................................................................................................... (Section 2)

• ASSEMBLY ........................................................................................................ (Section 3)

• INSTALLATION .............................................................................................. (Section 4)

• OPERATION

• Metering Pump Priming ........................................................................ (Section 5)

• Starting and Adjusting the Burner ....................................................... (Section 6)

• Resetting the Furnace and Burner ....................................................... (Section 7)

• Adjusting the Draft ............................................................................... (Section 8)

• MAINTENANCE .............................................................................................. (Section 9)

The manual also contains important and detailed technical reference materials which are located at the back of the manual in the Appendixes.

Please read all sections carefully--including the important safety information found in this section--before beginning any installation/operation procedures; doing so ensures your safety and the optimal performance of your Clean Burn furnace.

WARNING!

STOP

YOUR SAFETY IS AT STAKE!

DO NOT INSTALL, OPERATE OR

MAINTAIN THIS EQUIPMENT

WITHOUT FIRST READING

AND UNDERSTANDING THE

OPERATOR'S MANUAL!

1-1

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

For Your Safety...

For your safety, Clean Burn documentation contains the following types of safety statements (listed here in order of increasing intensity):

• NOTE: A clarication of previous information or additional pertinent information.

• ATTENTION: A safety statement indicating that potential equipment damage may occur if instructions are not followed.

CAUTION: A safety statement that reminds of safety practices or directs attention to unsafe

practices which could result in personal injury if proper precautions are not taken.

WARNING: A strong safetystatement indicating that a hazard exists which can result in injury or death if proper precautions are not taken.

DANGER! The utmost levels of safety must be observed; an extreme hazard exists which would result in high probability of death or irreparable serious personal injury if proper

precautions are not taken.

In addition to observing the specic precautions listed throughout the manual, the following general precautions apply and must be heeded to ensure proper, safe furnace operation.

DANGER! DO NOT create a re or explosion hazard by storing or using gasoline or other ammable or explosive liquids or vapors near your furnace.

DANGER! DO NOT operate your furnace if excess oil, oil vapor or fumes have accumulated in or near your furnace. As with any oil burning furnace, improper installation,

operation or maintenance may result in a re or explosion hazard.

WARNING: DO NOT add inappropriate or hazardous materials to your used oil, such as:

• Anti-freeze

• Carburetor cleaner

• Paint thinner

• Parts washer solvents

• Gasoline

• Oil additives

• Any other inappropriate/hazardous

material

WARNING: Burning chlorinated materials (chlorinated solvents and oils) is illegal, will severely damage your heat exchanger, immediately void your warranty, and adversely affect the proper, safe operation of your furnace. Instruct your personnel to never add hazardous materials to your used oil.

1-2

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

For Your Safety... (continued)

WARNING: Never alter or modify your furnace without prior written consent of

Clean Burn, LLC. Unauthorized modications or alteration can adversely affect the proper,

safe operation of your furnace.

WARNING: The burner which is shipped with your Clean Burn furnace is to be used only with your furnace according to the instructions provided in this manual. DO NOT use the burner for any other purpose!

WARNING: The Best Operator is a Careful Operator! By using common sense,

observing general safety rules, and adhering to the precautions specic to the equipment,

you, the operator, can promote safe equipment operation. Failure to use common sense,

  observegeneralsafetyrules,andadheretotheprecautionsspecictotheequipmentmay   resultinequipmentdamage,re,explosion,personalinjuryand/ordeath.

WARNING: The installation, operation, and maintenance of this equipment in the U.S. must be accomplished by qualied personnel and in compliance with the specications in the

Clean Burn Operator's Manual and with all national, state, and local codes or authorities

having jurisdiction over environmental control, building inspection and fuel, re and

electrical safety and the following standards:

NFPA 30 Flammable and Combustible Liquids Code NFPA 30A Automotive and Marine Service Station Code NFPA 31 Standard for the Installation of Oil Burning Equipment NFPA 211 Chimneys, Fireplaces, Vents and Solid Fuel Burning Appliances NFPA 88A Parking Structures NFPA 88B Repair Garages NFPA 70 National Electrical Code

The International Mechanical Code The International Building Code The International Fire Code

The International Fuel Gas Code

Likewise, the installation, operation, and maintenance of this equipment in Canada is to be

accomplished by qualied personnel and in compliance with the specications in the

Clean Burn Operator's Manual and in accordance with the regulation of authorities having

jurisdiction and the following CSA Standards: B139 - Installation Code for Oil Burning Equipment; B140.0 - General Requirements for Oil Burning Equipment; and C22.1 Canadian Electrical Code, Part 1.

Failuretocomplywiththesestandardsandrequirementsmayresultinequipment   damage,re,explosion,personalinjuryand/ordeath.

1-3

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

For Your Safety... (continued)

Guidelines for Furnace Usage

• This furnace is listed for commercial and/or industrial use only; it is not listed for residential use.

• This furnace is listed with Underwriters Laboratory (UL) and Underwriters' Laboratories of Canada (ULC) to burn the following fuels:

• Used crankcase oil up to 50 SAE

• Used transmission uid (for U.S.)

• Used hydraulic oils

• #2 fuel oil

• #4 fuel oil

• #5 fuel oil

NOTE: Used oils may contain other substances, including gasoline, that may hinder performance.

• Make sure you comply with all EPA regulations concerning the use of your furnace. EPA regulations require that:

• Your used oil is generated on-site. You may also accept used oil from "do-it-yourself" oil changers.

• Hazardous wastes, such as chlorinated solvents, are NOT to be mixed with your

used oil.

• The ue gases are vented to the outdoors with an appropriate stack.

• Your used oil is recycled as fuel for "heat recovery". DO NOT operate your furnace

in warm weather just to burn oil.

Contact your Clean Burn dealer for current EPA regulations.

• If your furnace ever requires service, call your Clean Burn dealer. DO NOT allow

untrained, unauthorized personnel to service your furnace. Make sure that your furnace

receives annual preventative maintenance to ensure optimal performance.

1-4

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

For Your Safety... (continued)

Guidelines for Used Oil Tanks

For the safe storage of used oil and the safety of persons in the vicinity of the used oil supply tank, ensure that your tank installation adheres to the following safety guidelines:

• The tank installation must meet all national and local codes. Consult your local municipal authorities for more information as necessary.

• Review and adhere to the safety

guidelines for used oil supply tanks as stated in the WARNING shown.

• Ensure that the tank for your furnace installation complies with all code and safety requirements as stated here. If the tank does not comply, DO NOT use it.

• If you do not have a copy of the tank safety label pictured at right, please contact your Clean Burn dealer for the

label, which is to be afxed directly on

your used oil supply tank.

WARNING

Fire and explosion hazards To prevent serious injury or death:

ONLY place these listed substances in this used-oil supply tank:

• Used crankcase oil

• Used automatic transmission uid

• Used hydraulic oil

• #2 fuel oil Do NOT place ammable or corrosive substances such as gasoline, chlorinated oils, solvents, paint thinners, or any other unsafe substances in this used-oil supply tank.

Do NOT weld or allow open ame within 35 feet of this used-oil supply tank.

Tank installation MUST comply with NFPA 30 and 31 Fire Codes, including the following requirements:

• Tank must be listed to UL 80 or UL 142.

• Tank must be vented to outside.

• Emergency vent or explosion relief must be installed on tank.

• Inside ll allowed only with funnel including 1/4 turn-to-close fall valve, which must be closed after lling.

• All other openings must be plugged

• All oil lines must be constructed of copper, steel, or brass components. Do NOT use rubber or plastic tubing or piping, or any other inappropriate material.

Follow all instructions for tank installation in Operator's Manual.

42366 Rev. 2

1-5

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

For Your Safety... (continued)

Safety Labels

Following are the locations and descriptions of all labels on your furnace cabinet. The following illustrations show the location of ALL labels on your furnace. Please note that some labels denote model number, model description, etc. while others contain important safety messages.

Each Safety Label contains an important safety message starting with a key word as discussed earlier

in this section (e.g. ATTENTION, CAUTION, WARNING, DANGER). For your safety and the safe

operation of your furnace, review all labels and heed all safety messages as printed on the labels.

If any labels on your Clean Burn furnace ever become worn, lost or painted over, please call your Clean Burn dealer for free replacements.

42030

42027

42358

42462

42457

42355 42514

DAT E CODE

42367

42461/42333/42513

Furnace Cabinet Labels

Label Part # Description

42030 Furnace Electrical Shock Hazard Warning Label (several locations) 42027 Furnace Burn Hazard/Hazardous Voltage Warning Label 42358 UL Data Label 42462 UL Header Label - CB-1750 42355 UL Header Label - CB-2500 42514 UL Header Label - CB-3250 42457 Made in USA / Pat Pending Combination Label 42461 Model CB-1750 Label 42333 Model CB-2500 Label 42513 Model CB-3250 Label 42367 Furnace Safety Warning Label (Multiple Messages - Fire/Shock/Burn Hazards) 42068 Furnace Blower/Fan Entanglement Hazard Warning Label (near blower)

AIR OIL

I88793-C

1-6

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

For Your Safety... (continued)

Furnace Cabinet Safety Labels

WARNING

Hazardous voltage.

To prevent serious injury, shut OFF main power to unit before removing cover.

Line voltage is present on most subbase terminals when power is ON. If the furnace is not wired correctly. re, shock or damage could result.

•

ONLY a qualied electrician should wire this furnace. ONLY use copper conductors.

•

42030 Rev. 2

WARNING

Burn Hazard. Hazardous Voltage.

Burner may re at any time. Disconnect burner power cord before swinging open burner or clean-out door.

42027 Rev. 2

WARNING

Fire, explosion and burn hazards:

Maintain clearances from combustibles as listed on unit. ONLY burn used crankcase oil, automatic transmission uid, hydraulic oil, or #2 fuel oil. NEVER burn any other substances in this unit.

Hot gases and ash may be released when inspection port is opened.

Wear safety goggles and hand protection

•

when opening inspection port. Keep face away and open port slowly.

•

To avoid possible injury, death, or equipment damage, read and understand operator's manuals and all safety precautions before installing, operating, or servicing this equipment.

42367 Rev. 2

WARNING

Entanglement and cutting hazard.

Blower can start at any time. Turn power OFF before servicing. Do NOT operate without guard in place.

42068 Rev. 2

1-7

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

For Your Safety... (continued)

Furnace Cabinet Safety Labels

MODEL NO.

CB-1750

INPUT RATING W/NO 2 FUEL OIL (BTU/HR)

LISTED FUELS

INPUT

- GPH -

NO 2 OIL

1.15 15.0 1.5

USED CRANKCASE OIL

HYDRAULIC OIL

ATF

NO 4 OIL

NO 5 OIL

MAX.. DISCHARGE

AIR TEMP-F

1.17

1.17 16.0

1.17 15.0 2.1

1.17 16.0 2.1

200

CLEARANCE TO COMBUSTIBLE SURFACES: (INCHES)

TOP

FRONT

BOTTOM

FAN MOTOR HP.

OIL PUMP MOTOR HP.

BURNER MOTOR HP.

BURNER HEATER WAT TS

DRAFT IND. (OPT ) HP

AIR COMPRESS. (OPT) HP.

REAR FROM

W/LOUVERS

POWER

3/4

1/20

1/10

400

1/3

CHIMNEY

BLOWER

BOTTOM

VO LTS AMPS

TOTAL CIRCUIT AMPACITY W/BLOWER

MAXIMUM FUSE SIZE

ULC

INPUT

- GPH -

ATOM AIR PRESSURE

- PSIG - - PSIG -

1.15

1.17

15.0

N/A 2.1

1.17

FLUE DRAFT IN W.C.

SIDE

HEATED AIR

DISCHARGE SIDE

120

11.0 60

0.75

1.4

3.3

3.9

3.5

170000

OIL

PRESSURE

2.115.01.17

2.1

-0.04

MODEL NO.

CB-2501

INPUT RATING W/NO 2 FUEL OIL (BTU/HR)

LISTED FUELS

INPUT

- GPH -

NO 2 OIL

1.7 18.0 3.5

USED CRANKCASE OIL

HYDRAULIC OIL

ATF

NO 4 OIL

NO 5 OIL

MAX.. DISCHARGE

AIR TEMP-F

1.7

1.7 18.0

1.7 18.0 4.0

1.7 18.0 5.0

200

CLEARANCE TO COMBUSTIBLE SURFACES: (INCHES)

TOP

FRONT

FAN MOTOR HP.

OIL PUMP MOTOR HP.

BURNER MOTOR HP.

BURNER HEATER WAT TS

DRAFT IND. (OPT ) HP

AIR COMPRESS. (OPT) HP.

REAR FROM

POWER

1/20

1/10

400

1/3

CHIMNEY

BLOWER

BOTTOM

VO LTS AMPS

TOTAL CIRCUIT AMPACITY W/BLOWER

MAXIMUM FUSE SIZE

ULC

INPUT

- GPH -

ATOM AIR PRESSURE

- PSIG - - PSIG -

1.7

16.0

N/A 4.0

1.7

FLUE DRAFT IN W.C.

SIDE

HEATED AIR

DISCHARGE SIDE

120

14.0 60

0.75

1.4

3.3

3.9

3.5

250000

OIL

PRESSURE

4.016.01.7

4.0

-0.04

BURNER REQUIRES A MINIMUM AIR SOURCE OF 2 S.C.F.M. AT 25 P.S.I. THIS APPLIANCE IS NOT TO BE USED WITH AIR FILTERS AND SHALL INCORPORATE NO PROVISIONS FOR MOUNTING AIR FILTERS. INSTALL AND USE ONLY IN ACCORDANCE WITH THE MFR’S INSTALLATION AND OPERATING INSTRUCTIONS. FOR COMMERCIAL OR INDUSTRIAL USE ONLY.

AUTHORITIES HAVING JURISDICTION SHOULD

BE CONSULTED PRIOR TO INSTALLATION

42462 - R1

1-8

AUTHORITIES HAVING JURISDICTION SHOULD

BE CONSULTED PRIOR TO INSTALLATION

42355 - R1

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

For Your Safety... (continued)

Furnace Cabinet Safety Labels

MODEL NO.

CB-3250

INPUT RATING W/NO 2 FUEL OIL (BTU/HR)

LISTED FUELS

INPUT

- GPH -

NO 2 OIL

2.1 16.0 5.0

USED CRANKCASE OIL

HYDRAULIC OIL

ATF

NO 4 OIL

NO 5 OIL

MAX.. DISCHARGE

AIR TEMP-F

2.1

2.1 16.0

200

CLEARANCE TO COMBUSTIBLE SURFACES: (INCHES)

TOP

FRONT

BOTTOM

BLOWER MOTOR HP.

OIL PUMP MOTOR HP.

BURNER MOTOR HP.

BURNER HEATER WAT TS

DRAFT IND. (OPT ) HP

AIR COMPRESS. (OPT) HP.

REAR FROM

DISCHARGE

POWER

1/6

1/10

400

1/3

CHIMNEY

BLOWER

BOTTOM

VO LTS AMPS

120/208/230

TOTAL CIRCUIT AMPACITY W/BLOWER

MAXIMUM FUSE SIZE

ULC

INPUT

- GPH -

ATOM AIR PRESSURE

- PSIG - - PSIG -

2.1

16.0

N/A

2.1 6.0

2.1 6.3

FLUE DRAFT IN W.C.

UNIT HEATER AIR

DISCHARGE SIDE

CENTRAL FURNACE

DISCHARGE SIDE

22/11.3/11 60

120

3.2

1.4

3.3

3.9

3.5

37.3/26.6/26.3

50/35/35

SIDE

300000

OIL

PRESSURE

6.016.02.1

6.0

-0.04

AUTHORITIES HAVING JURISDICTION SHOULD

BE CONSULTED PRIOR TO INSTALLATION

42514 - R1

CLEAN BURN LLC

JANESVILLE, WISCONSIN (USA)

MH15393

LISTED

USED-OIL BURNING APPLIANCE USED OIL-FIRED FURNACE

NO.

MULTI-OIL HEATING SYSTEM

INSTALL AND USE ONLY IN ACCORDANCE WITH THE MFR’S INSTALLATION AND OPERATING INSTRUCTIONS.

FOR COMMERCIAL OR INDUSTRIAL USE ONLY.

AUTHORITIES HAVING JURISDICTION SHOULD

BE CONSULTED PRIOR TO INSTALLATION.

CERTIFIED TO ELECTRICAL AND FUEL BURNING REQUIREMENTS ONLY.

USED OIL-FIRED BOILER

For use with Integral Primary Safety Control

13084

42358

1-9

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

525 BURNER

For Your Safety... (continued)

CB-525-S2 Burner Labels

Label Part # Description

42005 Sold and Serviced By Label 42004 Burner Safety Warning Label (High Voltage/Moving Parts Hazards) 42000 Burner Safety Warning Label (Fire/Explosion Hazard - Reset Button) 42235 Burner Safety Warning Label (Fire/Explosion Hazard Burner Installation and Service) 42321 Burner Model/Serial Number Label 42229 Logo/Burner Description Label 42023 Burner Power Label 42457 Made in USA / Pat Pending Combination Label (on side)

CB-525-S2 BurnerSafety Labels

42005

42004

42000

42235

42321

42229

42023

I88603-B

WARNING

Hazardous high voltage and moving parts hazard.

To avoid electric shock and injury from moving parts. turn power OFF before opening cover.

WARNING

Fire and explosion hazard. Do NOT press reset button until you read and understand Reset Procedures in Operator's Manual.

42000 Rev. 2

42004 Rev. 2

WARNING

Fire and explosion hazard.

This burner is to be installed ONLY on Clean Burn products. Only a qualied technician may maintain and service this burner.

42235 Rev. 2

1-10

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

SECTION 2: UNPACKING

Before assembling your furnace, you must accomplish the following activities described in this section:

• Removing the Shipping Crate

• Unpacking and Inspecting All Components

• Warranty Registration

Removing the Shipping Crate

NOTE: Remove the shipping crate prior to assembly and installation of the furnace. DO NOT use the crate as a platform for furnace installation!

1. Carefully remove the top boards of the shipping crate. Then remove the front, back, and side

panels of the shipping crate.

2. Carefully lift the furnace off the shipping pallet with a fork lift.

ATTENTION: DO NOT attempt to slide the furnace cabinet out of the shipping crate--you may damage the furnace cabinet.

Unpacking and Inspecting All Components

Following is an itemized list of all components you should have received in your Clean Burn furnace

shipment. Open all shipping containers and inspect all components according to the list. Immediately

notify the freight company and your Clean Burn dealer in case of shipping damage or shortage(s). Keep

all components together so you will have them as needed for furnace assembly and installation.

Furnace Component List

ONE SKID containing:

• Furnace cabinet

• Items packed inside furnace cabinet (combustion chamber): NOTE: Please refer to the procedure on the following page to remove these items.

• Target

• Hot air discharge assembly components plus hardware

• Furnace Accessories (items below in one box):

• Canister Filter

• Vacuum Gauge

• Check Valve and Check Valve Screen

• Wall Thermostat

• Barometric Damper

• Connector Block

• Burner Oil Line and Air Line Components

• Assorted bolts/ttings for assembly/installation of furnace components

• Operator's Manual Literature Packet (includes Tank Safety Label)

ITEMS PACKED IN INDIVIDUAL BOXES:

• Burner

• Blower Assembly

• Metering Pump (includes Suction Oil Line Fittings Package)

NOTE: You may have received additional boxes or skids if you ordered optional accessories.

2-1

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

Unpacking Items Packed Inside the Furnace

To unpack the items packed inside the furnace cabinet (in the combustion chamber), you will need to

open the combustion chamber door.

1. Remove the four nuts and washers which hold the combustion chamber door closed. Set the nuts and washers aside in a safe place for later re-installation after the target has been installed (Section 3).

2. Carefully swing the combustion chamber door open. Remove and inspect the components

packed inside.

3. Leave the door unfastened (open) for assembly/installation procedures to be accomplished in the

next section.

CLEAN-OUT DOOR

Figure 2A - Accessing the Combustion Chamber

Warranty Registration

For proper warranty registration, Clean Burn requires that you ll out the provided warranty registration

card and return it within 30 days to:

CLEAN BURN WARRANTY REGISTRATION

COMBUSTION CHAMBER

I88436-A

Clean Burn, LLC.

4109 Capital Circle,

Janesville, WI 53546

2-2

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

SECTION 3: FURNACE ASSEMBLY

Understanding Assembly

Assembling your Clean Burn Furnace includes the following steps:

(1) Installing the Blower Assembly (2) Installing the Hot Air Discharge Components (3) Installing the Energy Retention Disc (4) Installing the Burner (5) Installing the Connector Block, Oil Line Tubing, and Air Line Tubing

Clean Burn recommends that you review all assembly procedures before proceeding, paying careful attention to safety information statements.

Figure 3A on the following page provides a general overview of the furnace components and their proper assembly.

Required Tools and Materials

The following tools are required for furnace assembly and should be gathered before starting any procedures:

• 9/16" open-end wrench

• Medium at-blade screwdriver

• Medium adjustable wrench

• 1/4" nut driver attachment for drill

• 5/16" nut driver attachment for drill

• Variable speed drill

3-1

JUNCTION BOX

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

"ALL THREAD" RODS

COUPLINGS FOR "ALL THREAD" RODS

BURNER MOUNTING BRACKET

BURNER CABLE

PUMP PRIMING SWITCH

R.H. FURNACE

THROAT

FURNACE DOOR

NOTE: LOOP ON ENERGY RETENTION

DISC HOOKS OVER MOUNTING BRACKET ON BACK WALL OF COMBUSTION CHAMBER

BREECH

LH FURNACE BREECH WITH CLEAN-OUT

AIR OIL

ENERGY

FURNACE BREECH

RETENTION DISC INSTALLED ON BACK WALL OF COMBUSTION CHAMBER

HOT AIR DISCHARGE

NOTICE THE VARIOUS MOUNTING CHOICES FOR THE LOUVERS

IT IS OK TO OPEN OR RESTRICT THE LOUVERS AS NEEDED, AND THEN

TO TURN THOSE CONFIGURATIONS IN ANY OF FOUR DIRECTIONS

Complete assembly of the furnace according to the following list of activities as illustrated above: (1) Installing the Blower Assembly (2) Installing the Hot Air Discharge Components (3) Installing the Target (4) Installing the Burner (5) Installing the Connector Block, Oil Line Tubing, and Air Line Tubing NOTE: Corresponding procedures provided in order in this section.

Figure 3A - Overview of Furnace Assembly

I88437-C

3-2

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

Installing the CB-1750 and CB-2500 Blower Assembly

1. Refer to Figures 3B and 3C.

2. Remove the blower stabilizer brackets as shown in Figure 3B. (These braces, which are installed

at the factory, are designed to keep the blower in proper position during shipping. Note that

these braces are provided on CB-2500 blower assemblies ONLY; CB-1750 blower assemblies do not require these special shipping braces.)

3. Position the blower over the opening in the back of the furnace cabinet by sliding the blower into the mounting angle brackets. Note that the mounting brackets may be loosened for adjustment,

as needed. The blower should be centered over the opening.

4. Fasten the blower to the brackets with self-tapping screws (provided). Drive the screws into the

blower housing through the holes in the mounting angle brackets. There are four holes along each side and across the top of the bracket to fasten the blower to the furnace cabinet.

5. Install the blower safety guards as shown. WARNING: To avoid serious personal injury, be sure to install both pieces of the blower guard

around the blower prior to operating the furnace. NEVER operate the furnace without all safety shields/guards in place! ATTENTION: The air ow is changed when the guards are not in place which may result in damage to the blower motor. NOTE: For proper air ow through the furnace cabinet the blower must be positioned so that

the bulge on the blower faces down as illustrated in Figures 3A, 3B, and 3C.

IMPORTANT!!:

REMOVE SHIPPING BRACES

ATTACH BLOWER TO FURNACE ATTACH SHIELDS/GUARDS TO BLOWER (1 ON EACH SIDE)

X 2

Figure 3B - Installing the Blower Assembly (CB-1750 and CB-2500)

I88691-D

3-3

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

I88438-D

Installing the CB-1750 and CB-2500 Blower Assembly (continued)

L2 L1

Note capacitor location on blower.

CB-1750 is shown; CB-2500

capacitor is mounted on the opposite side of the blower.

Figure 3C - Blower Installed on Furnace Cabinet (CB-1750 and CB-2500)

Wiring the CB-1750 and CB-2500 Blower Motor

WARNING: Make sure the main power to the furnace is turned OFF before wiring the blower motor. NOTE: Wiring schematics are provided in Figures 3D and 3E and in Appendix B at the back of the manual.

1. After the blower has been secured to the back of the furnace cabinet, install the electrical conduit with the blower motor leads into the 4" x 6" rear junction box on the top of the furnace cabinet as shown in Figure 3C.

2. For CB-1750 furnaces (see Figure 3D):

• Connect the power lead coming from the blower assembly to the 4" x 6" electrical box

mounted on the rear of the furnace cabinet.

• Connect the black (power) motor lead wire to the connector block terminal with the black (power) wire from the front electrical box.

• Connect the white (neutral) motor lead wire to the connector block terminal with the white (neutral) wire from the front electrical box.

3. For CB-2500 furnaces (see Figure 3E):

• Connect the power lead coming from the blower assembly to the 4" x 6" electrical box

mounted on the rear of the furnace cabinet.

• Connect the black (power) motor lead wire to the T1 terminal of the contactor.

• Connect the white (neutral) motor lead wire to the T2 terminal of the contactor.

3-4

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

Installing the CB-1750 and CB-2500 Blower Assembly (continued)

REAR JUNCTION BOX

BLOWER MOTOR

WHITE

BLACK

WHITE

BLACK

POWER IN

I42425

Figure 3D - Detail of Blower Motor Wiring for CB-1750

WHITE

SPADE

(MALE TO FEMALE)

(FLEX CONDUIT)

WHITE

REAR JUNCTION BOX

(UNDER LUG SCREW)

POWER IN FLEX CONDUIT

(UNDER LUG SCREW)

I42423

Figure 3E - Detail of Blower Motor Wiring for CB-2500

WHITE

BLACK

ORANGE

3-5

WHT

BLK

BLOWER

MOTOR

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

Installing the CB-3250 Blower Assembly

Mounting the CB-3250 Blower

1. Refer to Figures 3F and 3G.

2. Position the blower over the opening in the back of the furnace cabinet by sliding the blower into

the mounting angle brackets. The top of the blower is slid over the lip on the back of the furnace. The mounting screws on top will go through the blower and anchor into the thicker lip pretruding

from the back of the furnace cabinet. Check for proper positioning by referring to Figure 3G.

3. Fasten the blower to the brackets with self-tapping screws (provided).

NOTE: There are three holes for fastening the blower along each side of the bracket, as well as three across the top.

Installing the CB-3250 Motor on the Blower

1. Refer to Figures 3F and 3G.

2. Use self-tapping bolts to install the motor mounting bracket on the blower according to the dimensions provided in Figure 3F.

3. Slide the two (2) square-head bolts upside-down in the channel of the motor mounting bracket.

4. Install the motor mounting plate on the mounting bracket using the two bolts in the channel to

hold the plate in position. DO NOT install the nuts on the bolts yet. Make sure the plate is ush

with the side of the blower.

5. Use a self-tapping bolt to install the motor tensioning bracket on the blower according to the dimensions provided in Figure 3F.

6. Lift up on the end of the motor mounting plate until the hole in the side of the plate is aligned

with the slot in the motor tensioning bracket. Push a bolt through the slot and install a nut

loosely just to hold the plate in position. DO NOT tighten the nut yet.

7. Lift the motor into position on the motor mounting plate using the two bolts in the channel to hold the motor in place. Now loosely install the nuts on the two (2) bolts.

8. Slide the motor into position so the face of the motor is ush with the side of the blower. Now

tighten the nuts.

9. Install the additional two (2) bolts and nuts through the upper holes in the motor mounting plate and motor. Tighten the nuts to hold the motor rmly in position.

Wiring the CB-3250 Blower Motor

WARNING: Make sure the main power to the furnace is turned OFF before wiring the blower motor. NOTE: Wiring schematics are provided in Figure H and Appendix B at the back of the manual.

1. After the blower has been secured to the back of the furnace cabinet, screw the electrical conduit

with the blower motor leads into the motor housing.

2. Determine the voltage being supplied to the unit. Follow the correct wiring diagram in Figure H for either 115 Volts or 230 Volts. Connect the wire ends with the terminals to the motor. Refer to

the wiring diagram on the motor to ensure that the motor is wired for proper voltage and CW rotation facing the shaft.

3. Install the electrical conduit with the blower motor leads into the 4" x 6" rear junction box on top of the furnace cabinet as shown in Figure 3G. Refer to Figure 3H for the proper wiring diagram.

3-6

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

BLOWER ASSEMBLY PARTS LIST

1 NUT

(4) 1

2 MOTOR 3 MOTOR PULLEY 4 SHEAVE BUSHING 7/8” 5 MOTOR MOUNTING PLATE 6 BOLT 7 SQUARE HEAD BOLT 8 BLOWER GUARD 9 MOTOR MOUNTING BRACKET 10 BLOWER 11 MOTOR TENSIONING BRACKET 12 SELF TAPPING SCREW 13 BLOWER PULLEY 14 SHEAVE BUSHING 1" 15 BELT 16 BELT GUARD

CB-3250 BLOWER

DETAIL OF BRACKET INSTALLATION NOTE: The brackets must be

installed at the correct position on the side of the blower as shown here to allow the belt guard to mount properly.

18 1/4"

3/4"

8 1/2"

I89022

Figure 3F - Blower Assembly Parts Detail (CB-3250)

3-7

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

Installing the CB-3250 Blower Assembly (continued)

I89021

Figure 3G - Blower Installed on Furnace Cabinet (CB-3250)

Installing the CB-3250 Motor Pulley, Blower Pulley, and V-Belt

1. Review the contents of the Blower Pulley and Motor Pulley as shown in Figure 3F. 2 Refer to Figure 3F. Place the blower pulley over and onto the blower shaft as far as possible

with large bore end of taper outward.

3. Insert the blower key into the bushing. (If the key is deformed and does not t into place, le the key to the proper size or replace it with a new key).

4. Slide the bushing (with key inserted) onto the shaft so the tapered end will engage into the

pulley.

NOTE: If bushing does not slide freely on shaft, wedge a screwdriver blade into the saw cut

at the ange OD to open the bore of the bushing. CAUTION: Excessive force may split the

bushing.

5. Align drilled holes in bushing ange with tapped holes in the pulley. Use the capscrews

and washers provided with the bushing package to fasten the pulley on to the bushing. DO NOT

COMPLETELY TIGHTEN THE SCREWS AT THIS POINT! Make sure you can still slide the bushing and pulley for future alignment with the motor pulley. (Additional information is available in the “Bushing Instruction Sheet” provided with each bushing)

6. Install the motor pulley following steps 1 through 5.

3-8

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

115

VOLTS

FLEX

CONDUIT

GROUND

COMMON / NEUTRAL

HOT LEG

WHITE

BLACK

ORANGE

115 VOLTS AC

2 L

1 L

CONTACTOR HAS A

110 - 120 VOLT AC COIL

CONNECT 2 HP BLOWER MOTOR

ACCORDING TO THE LABEL SUPPLIED WITH

THE MOTOR FOR CW ROTATION FACING

THE SHAFT AND 115 VOLTS

2 T

1 T

GREEN

BLOWER

MOTOR

230

VOLTS

FLEX

CONDUIT

I89031

COMMON / NEUTRAL

HOT LEG

WHITE

BLACK

GROUND

ORANGE

230 VOLTS AC

2 L

1 L

CONTACTOR HAS A

110 - 120 VOLT AC COIL

CONNECT 2 HP BLOWER MOTOR

ACCORDING TO THE LABEL SUPPLIED WITH

THE MOTOR FOR CW ROTATION FACING

THE SHAFT AND 230 VOLTS

2 T

1 T

GREEN

BLOWER

MOTOR

Figure 3H - Detail of Blower Motor Wiring for CB-3250

3-9

Operator's Manual: Models CB-1750, CB-2500 & CB-3250

Installing the CB-3250 Motor Pulley, Blower Pulley, and V-Belt (continued)

7. Align the motor pulley with the blower pulley.

a. Place the blower bushing ½ inch from the end of the shaft and tighten the capscrews securely

(9 Ft. - Lbs. if using a torque wrench). b. Place a level or straight edge at onto the two most outer edges of the blower pulley.

c. Place the motor pulley and bushing about ¼ inch away from the straight edge.

d. Start tightening the screws on the motor bushing. As the screws are tightened, the motor pulley will approach the straight edge. TIGHTEN THE CAPSCREWS SECURELY (9 Ft. Lbs. if using a torque wrench).

e. Four points of the two pulleys should be touching the straight edge. If they don’t make full contact, loosen the screws on the motor bushing and realign it so both pulleys are on the same plane.

8. Place the belt on the pulleys, starting with the motor pulley and feeding it onto the blower pulley.

9. Tighten the belt (Refer to Figure 3G).

a. Raise the motor bracket and at the same time tighten the nut on the tension bracket.

b. DO NOT over tighten the belt. Leave about 1inch of slack (when pushing on the top of the belt, it should deect about 1 inch).

Installing the CB-3250 Belt Guard and Blower Guard

WARNING: To prevent serious personal injury, DO NOT operate the furnace without the belt

and blower guards in place.

1. Refer to Figure 3F and 3G.

2. Install the belt guard and blower guard as shown.

Determining the Air Discharge Conguration

Before proceeding with the assembly of your furnace, it is important to determine the conguration of the air discharge for your furnace. There are three congurations to consider:

(1) Unit Heater Furnace with blower assembly for free air applications. Follow the instructions (provided in this section) to install the blower

assembly and air discharge components. Be sure to adhere to the proper

       speciedclearancesforUnitHeaterCongurationsasstatedin

Section 4 of this manual.

(2) Central Furnace (A) Furnace with blower assembly for ducting applications with .25 or less static pressure.*

Follow the instructions to install the blower assembly and air discharge components, and refer to the following chart for the proper air discharge

and ducting specications. Besuretoadheretotheproperspecied        clearancesforCentralFurnaceCongurationsasstatedinSection4of

this manual.

(3) Central Furnace (B) Furnace with blower assembly for ducting applications from .25 to .40 static pressure.*

Follow the instructions to install the blower assembly, and refer to the

following chart for the proper air discharge and ducting specications.

BesuretoadheretotheproperspeciedclearancesforCentralFurnace        CongurationsasstatedinSection4ofthismanual.

3-10

+ 112 hidden pages

CLEAN BURN CB-1750, CB-2500, CB-3250, CB 140 Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual