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Saturn 125 - User Manual

Saturn 125
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OPERATOR'S MANUAL
FURNACE MODELS: SATURN™ 140 and SATURN™ 230
MULTI-OIL FURNACES
with SATURN™ 125 BURNER
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
identified herein. The use of these instructions for the installation of products NOT bearing the ULC label and
NOT identified herein may result in an unacceptable or hazardous installation.
IMPORTANT FOR CANADIAN INSTALLATIONS: The installation of this equipment is to be accomplished by
qualified personnel and in accordance with the regulation of authorities having jurisdiction and CSA Standard B 139,
Installation Code for Oil Burning Equipment.
PUBLICATION DATE: 6/13/11, Rev. 3 CLEAN BURN PART # 43224
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.
U.L. Listed Used Oil
Burning Appliance
#MH15393 (N)
U.L.-C Listed
#CMP217

Table of Contents

Questions and Answers

  • T
    Todd ChangAug 14, 2025
    Why Saturn Furnace burner won't run and the green power light is off?
    • S
      Samantha ScottSep 12, 2025
      If the Saturn Furnace burner won’t run and the green power light is not on, it could be due to several reasons. First, check if the circuit breaker or main switch is open and close it. Second, a fuse or breaker might be blown, in which case an electrician should inspect the electrical system. Finally, the burner cable might be damaged or not plugged in properly, so inspect the burner cable.
  • J
    jeffrey27Aug 17, 2025
    What to do if Saturn Furnace burner ignites but shuts off quickly?
    • E
      Edward JacksonAug 17, 2025
      If the Saturn Furnace burner ignites but does not stay running and shuts off on reset within 15 seconds, consider these potential causes: * There might be a fuel delivery problem; follow the procedures listed in the next problem. * The cad cell could be dirty; clean and check its condition along with the cad cell wires. * Cad cell wires might be loose; ensure the yellow wires are properly connected at the 'F' terminals on the oil primary control. * The cad cell or its wires could be damaged; replace them if necessary. * The primary control might not be receiving the correct ohm signal from the cad cell; disconnect the yellow wires from the 'F' terminals, start the burner, and check the ohm reading from the cad cell.
  • N
    nelsonreneeAug 20, 2025
    How to fix a Saturn Furnace pump that won't prime but the motor is running?
    • Y
      Yolanda WernerAug 20, 2025
      If the Saturn Furnace pump won’t prime but the pump motor is running, several issues could be the cause. First, there might be a leak in the suction line, so ensure it is installed properly and all fittings are airtight. Second, make sure the pump head is filled with oil before starting the pump. Third, the pump gears could be dry, so fill the oil line and prime the pump. Fourth, a damaged pump seal could be the problem; if there is oil at the pump shaft, replace the pump or the seal. Fifth, check if the ball valve is closed and open it. Finally, the canister or check valve might be dirty, so refer to Section 9 to clean them. If none of these steps work, the pump may be damaged or worn out and require replacement.
  • S
    Spencer LynchAug 27, 2025
    Saturn Furnace burner ignites then shuts off later - what's wrong?
    • P
      Patrick RamirezAug 27, 2025
      If the Saturn Furnace burner ignites and then shuts off on reset sometime later during the day or night, consider these potential issues: * There might be air in the fuel supply; prime the pump. * The primary control may not be receiving the correct ohm signal from the cad cell; check for proper ohm signal. * There could be insufficient air pressure; follow the instructions in Section 5 to adjust the air regulator for proper air pressure. * The heater block might be cold; do not shut off power to the furnace overnight to prevent the heater block from cooling down. * The electrodes could be fouled; follow the instructions in Section 8 to check for proper draft overfire and clean the electrodes and retention head.
  • S
    Samantha PollardAug 30, 2025
    Why does my Saturn Furnace burner shut off periodically after running properly?
    • K
      Kimberly DayAug 30, 2025
      If the Saturn Furnace burner ignites and runs properly but shuts off on reset periodically, it could be due to: * Air in the suction oil line due to leaks at the fittings; follow the procedures in Section 5 to vacuum test the pump and properly seal the suction line fittings to eliminate air leaks. * Air trapped in a high point in the pressure oil line; bleed the air out of the pressure oil line.
  • C
    cgarciaSep 3, 2025
    What to do if Saturn Furnace pump won't prime and motor isn't running?
    • A
      April RiosSep 3, 2025
      If the Saturn Furnace pump won’t prime and the pump motor is not running, check the following: First, ensure there is power on the pump circuit from the burner, start the burner and adjust the air pressure regulator to 15 PSI. Second, the pump motor may have shut off on thermal overload; wait for the motor to cool down, as the thermal switch will automatically reset.
  • R
    Rebecca ChapmanSep 6, 2025
    How to stop my Saturn Furnace fan motor from running constantly?
    • C
      Chase FordSep 6, 2025
      If the Saturn Furnace fan motor runs all the time, the fan motor circuit might be wired incorrectly. Refer to the wiring diagram and ladder schematic in Appendix B to troubleshoot the fan motor circuit.
  • A
    Anthony WalkerSep 9, 2025
    Why won't the fan motor in my Saturn Furnace run?
    • T
      Tammy ValdezSep 10, 2025
      If the fan motor will not run in your Saturn Furnace, there are several possible reasons: * The fan motor may not be wired correctly; check the fan motor wiring. * The blower/fan switch may be defective; replace the blower/fan switch. * The fan motor may have overheated and shut down on thermal reset; wait for the motor to cool down, as the thermal switch will automatically reset.
  • W
    Wesley FernandezNov 23, 2025
    Why Saturn Furnace burner won't run even when the green power light is on?
    • M
      Michelle StanleyNov 23, 2025
      If the Saturn Furnace burner won’t run even when the green power light is on, here are some potential causes: * The oil primary control may have shut down on a safety reset; follow the directions in Section 7 to reset it. * The wall thermostat might not be operating; check the wall thermostat and its cable. * The heater block may not be heating up; it should be at least 120 °F. Wait 15 minutes and re-check. Also, check the block heater thermostat and element. * The F-120 proving switch might not have closed; check the red wire going to the switch in slot #13 of the terminal block for power. If there is no power, refer to the wiring diagram and ladder schematic in Appendix B to troubleshoot the circuit. * The oil primary control terminals may not be wired correctly; ensure the 'F...

Summary

Operators Manual Overview

Critical Safety Warning Before Operation

Emphasizes reading and understanding the manual before use.

Warranty Information

Section 1: Introduction

Critical Safety Warning

Urgent safety message regarding manual adherence.

For Your Safety

General Fire and Explosion Hazard Warnings

Warnings against flammable liquids and oil vapor accumulation.

Prohibited Materials in Used Oil

Lists materials not to be mixed with used oil.

Chlorinated Materials Burning Warning

Warns against burning chlorinated materials due to damage and legality.

For Your Safety (Continued)

Furnace Modification and Burner Usage Warnings

Warnings against unauthorized modifications and specific burner use.

Operator Responsibility and Safe Operation

Emphasizes operator's role in safe equipment operation.

US and Canadian Installation Compliance Standards

Lists required codes and standards for US and Canadian installations.

Furnace Cabinet Safety Labels

Fire, Explosion, and Burn Hazard Warning

Specific warning for fire, explosion, and burn hazards.

Hazardous Voltage Warning

Warning regarding hazardous voltage and electrical shock.

Entanglement and Cutting Hazard Warning

Warning about entanglement and cutting hazards.

Saturn 125 Burner Labels

Saturn 125 Burner Specific Safety Warnings

Safety warnings specific to the Saturn™ 125 burner.

Section 2: Unpacking

Section 3: Furnace Assembly

Section 4: Furnace Installation

US Installation Standards and Codes

Lists NFPA and other standards for US installations.

Canadian Installation Standards and Codes

Lists CSA standards for Canadian installations.

Consequences of Installation Non-Compliance

Details risks of failing to meet standards and requirements.

Selecting a Location for Furnace Installation

Minimum Clearances from Combustibles Warning

Specifies required clearances for safe installation and servicing.

Oil Tank Installation Specifications

Installing the Metering Pump

Wiring the Furnace and Pump

Electrical Safety Warnings Before Wiring

Warnings about electrical shock, circuit ties, and voltage.

Installing Suction Oil Line Components

Critical Suction Line Installation Specifications

Adherence to specifications for suction oil line installation.

Suction Line Lift and Airtight Requirements

Installing Pressure Relief Oil Line and Air Line

Pressure Relief Line Plumbing Specifications

Critical specifications for plumbing the pressure relief line.

Installing the Stack System

Stack Design and Installation Warnings

Warnings about stack materials, design, and installation.

Stack Design and Specification Guidelines

Exhaust Fans and Make-up Air Considerations

Attention on exhaust fans affecting draft and need for make-up air.

Installing Stack Safety Switch (Canadian Installations)

Installing the Optional Draft Inducer

Resetting the Stack Safety Switch

Burn Hazard Warning for Switch Reset

Warning regarding burn hazard and time for cooling before reset.

Section 5: Metering Pump Priming

Priming the Metering Pump

Precise Priming Process and Air Bleeding

Emphasis on precise steps to bleed all air from the system.

Pump Head Operation and Safety Warnings

Warnings against running the pump head dry and relief line installation.

Vacuum Testing the Oil Pump Procedure

Procedure to accurately test pump and fittings for vacuum and airtightness.

Vacuum Drop Attention and Troubleshooting

Guidance on interpreting vacuum test results and addressing leaks.

Section 6: Starting and Adjusting the Burner

Preparing the Burner for Startup Sequence

Initial Combustion Air Band Adjustment

Starting the Burner and Adjusting Air Regulator

Observing and Fine-Tuning Flame Length

Checking for Smokeless Burn Performance

Checking the Operation of the Fan Motor

Section 7: Resetting the Oil Primary Control

Safe Usage of the Reset Button

Blower;Fan Switch Operation

Hi-Temp Limit Switches Functionality

Section 8: Adjusting the Draft Over Fire

Importance of Draft for Furnace Operation

Checking for Correct Draft Over Fire

Procedure for using a draft gauge to measure draft over fire.

Adjusting the Barometric Damper

Instructions for adjusting the barometric damper to achieve proper draft.

Solving Draft Over Fire Problems

Guidance on identifying and resolving draft issues and backdraft.

Effect of Exhaust Fans on Furnace Draft

Explains how building exhaust fans impact furnace draft.

Checking Draft to Determine Backdraft Severity

Procedure to quantify backdraft severity caused by exhaust fans.

Installing a Make-up Air Louver

Instructions for installing make-up air louvers to mitigate backdraft.

Section 9: Maintenance Procedures

Understanding Routine Furnace Maintenance Importance

Periodic Burner Inspection Guidelines

Guidelines for regular inspection of burner operation and flame.

Cleaning the Canister Filter

Procedure for cleaning the oil filter canister.

Servicing the Metering Pump

Steps for servicing the metering pump components.

Cleaning the Check Valve and Screen

Procedure for cleaning the check valve and its screen.

Cleaning the Oil Tank

Instructions for draining water and sludge from the oil supply tank.

Cleaning Ash from the Furnace

Procedure for removing accumulated ash from the furnace.

Annual Burner Tune-up Requirements

Details on the necessity and scheduling of annual burner tune-ups.

End of Season Maintenance Procedures

Cleaning and Maintaining the Optional Draft Inducer

Maintenance procedures for the optional draft inducer.

Section 10: Troubleshooting

Troubleshooting Flow Chart Overview

Troubleshooting Table Structure and Content

Troubleshooting Common Furnace Issues

Burner Not Running (No Power)

Addresses issues when the burner won't start and power light is off.

Burner Not Running (Power On)

Burner Shuts Off Periodically or on Reset

Pump Issues: Not Priming or Motor Not Running

Fan Motor Operation Problems

Saturn 125 Specifications

General IconGeneral
BrandSaturn
Model125
CategoryFurnace
LanguageEnglish