Thermo Products OH6FX072DV4R, OH8FA119DV5R, OH8FA119D60R, OH6FA072D48B, OH6FA072D48N, OH6FA072DV4N

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If this action does not reactivate the unit, contact a qualified service agency for assistance.

In general, if the thermostat is set in the heating mode, the heating system functions entirely automatically. However, under certain circumstances, the appliance may not be able to fire the burner. For instance, if the manual oil shutoff valve has been closed or the oil tank is out of fuel, the oil line may have air trapped in it. It will be necessary to purge the air by bleeding the supply line from the tank to the burner again for the heating system to operate. Refer to the instructions under the Extended Appliance Shutdown section of this manual.

NOTICE: Thermo Products recommends that the user/homeowner, contact a qualified service agency for assistance in bleeding the fuel line(s) and lighting off the heating section.

The following maintenance points should be reviewed periodically to assure the heating and cooling systems continue to function properly.

: Shut off unit and disconnect the power source before disassembling the unit.

: Never operate the appliance without clean air filters in place.

: This appliance requires air for combustion, ventilation, and cooling. Do not block or obstruct air openings in the unit and the air space around the perimeter of the unit.

1.At least every three months, under normal usage conditions, check and clean all air filters in the appliance and, if present, in the duct system. If excessively dirty air filters are not cleaned, or changed, poor system performance will result due to reduced airflow. Low airflow places unnecessary strain on the compressor, possibly causing the system to shutdown on the refrigerant high-pressure switch. Refer to Figure 23 for a sketch of the filter location.

2.Do not allow the fuel oil tank to run completely empty. During the summer, keep the tank full to reduce condensation of moisture on the inside surface of the tank. If the fuel tank runs completely dry, it may be necessary to bleed air from the fuel lines. Contact a qualified heating contractor to bleed the lines and restart the burner.

3.Check the supply and return air connections to the appliance to insure the seals between the duct and appliance and the appliance and home are intact. Check the ducts for any signs of collapse, holes, or excessive corrosion. Repair or replace components as required.

VII. TROUBLESHOOTING:

THIS SECTION IS ONLY TO BE PERFORMED BY TRAINED, QUALIFIED SERVICE

PERSONNEL, AND NOT BY THE FURNACE OWNER.

NOTICE: Before troubleshooting, familiarize yourself with the Initial Startup, Checkout Procedure, and Troubleshooting Flowchart.

Refer to the appendices of this manual for an electrical schematic, a connection diagram, flowcharts to assist in troubleshooting, product specifications, and a replacement parts list follow for this appliance.

1.Check for 115VAC line supply voltage to the furnace. If there is no supply voltage, check fuses and service switch.

CAUTION: When testing electrical equipment, always follow standard electrical procedures.

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Contents OH6FA072DV4R OH6FA072DV4BOH6FA072DV4N OH6FX072DV4R Contents = Front = Highboy D = DownflowWARNING and Cautions Safety SectionCAUTION do not Attempt to Start the Burner When Page Combustible material Codes and ClearancesNon-combustible material Highboy II. General Instructions Read Before Start of InstallationPrevention of Chimney Condensing ChimneyProper Chimney Height Proper Vent Connector PIPE/CHIMNEY ConnectionTight Joints Tight CLEAN-OUT Doors and ConnectionsNo Interconnected Chimney Flues Flue Pipe CLEARANCES, Sizing and TypeReduction of Clearances with Specified Forms of Protection Venting Duct WORK/AIR Conditioning Draft RegulatorsAirflow Requirements and Sizing of Duct Work Page Page Supply air duct sizing Example Examples Air Filter Mounted External to FurnaceA typical filter rack and dimensions for the OH6 furnace Maximum Filter Type Air Velocity Model Number Ft/min Limit Position and LocationOH6 OH8 Do not remove this retainer when installing burner Burner InstallationDo not Change Position of the Chamber Burner Specifications and ApplicationsBTU/HR Beckett RielloBTU/HR Heating Capacity Mounting the 2-STAGE Riello BurnerOIL Tank and Piping Electrical Wiriing OIL FilterElectronic Air Cleaner EAC and Humidifier Installation Fan Control Module Thermostat Anticipator SettingHeat Anticipator Adjustment Scale Preferred method of adjustmentBlower Motor Speed Selection OH6FA072DV4 Heating Speed Set-upsFurnace Motor Current Draw Amps/ / Watts vsCFM OH8FA119DV5Heating Speed Set-ups 2 Stage Heating Approx Switch CFM/RISE SettingsOH6FX072DV4 60,000 72,000 90,000Cooling blower motor speed chart Draw Amps/Watts vs Cooling Speed Set-upsHigh OH6FA072D48969 OH8FA119D60Blower Controller Information for PSC Motor Terminal Definitions & Field WiringOutputs InputsOperating Modes On and OFF Blower Delay Time Switch Settings Diagnostic Features ECM & PSC Trouble ShootingSTOP! Read the safety information above Startup ProceduresOperating Instructions To Turn Off Oil to Appliance Adjustment of Burner CombustionPreliminary Adjustment of Burner Air Band and Air Shutter Combustion Head Setting for 2-STAGE Riello BurnerTurn to the Right Sign + AIR Damper AdjustmentTurn to the Left Sign 2nd Stage Adjustment 1st Stage AdjustmentAdjustment Of Heat Input Rate Page Checkout Procedure Inspection Areas III. Users Information Section Caution do not Attempt to Make Repairs Yourself Starting the Burner Filter Cleaning and LocationIV. Installers Instructions to User Safety During Servicing and Inspection Dealer MaintenanceGeneral Inspection Heat Exchanger OH6 8FT OH8 8FT Electrical System Filter maintenance procedureSUPPLY/RETURN AIR Blower SUPPLY/RETURN AIR FilterExtended Appliance Shutdown Filter replacementOn Shutdown On Startup VI. HOMEOWNER/USER Information and Routine MaintenanceBeckett Burner Location of oil primary control reset buttonPage Diagnostic Features DiagnosticsCAD Cell Checkout Procedure Number of flashes Cad Cell Resistance in ohms Model R7184BPage VIII. Sequence of Operations Flow Chart Page IX. Trouble Shooting Flow Chart Page Page Page Page Customer Appendix a Replacement Parts Replacement Parts for OH8FA119D Appendix B Wiring Diagrams OH6FA072DV4 ECM Wiring Diagram OH6FX072DV4 ECM 2-Stage Wiring Diagram OH8FA1119D60 PSC Wiring Diagram OH8FA1119DV5 ECM Wiring Diagram
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OH6FA072D48R, OH8FA119D60B, OH6FA072DV4B, OH8FA119DV5B, OH6FX072DV4R specifications

Thermo Products has established a reputation for delivering high-quality heating solutions tailored for various applications. Among their standout offerings are the OH8FA119DV5R, OH8FA119D60R, OH6FA072D48B, OH6FA072D48N, and OH6FA072DV4N models. These units are engineered with precision and incorporate advanced technologies to deliver reliable performance in residential and commercial settings.

One of the main features of these models is their energy efficiency. They utilize modern heat exchanger designs, which allow for maximum heat transfer while minimizing energy consumption. This not only helps in reducing utility bills but also supports sustainable practices by lowering the carbon footprint. Many systems are also equipped with variable-speed motors, providing precise airflow control, which enhances comfort while operating quietly.

In addition to their energy efficiency, these units incorporate smart technology that allows for seamless integration into home automation systems. This feature enables users to monitor and control their heating systems remotely through mobile apps, making it convenient to adjust settings for optimal comfort. The smart thermostats associated with these models often feature learning capabilities, which adapt to users' habits to optimize heating schedules further.

Durability is another standout characteristic of the OH8FA and OH6FA series. Built with robust materials, these heaters are designed to withstand the rigors of daily use. Many units come with extended warranties, reflecting the manufacturer's confidence in their longevity. Furthermore, corrosion-resistant components ensure that the units maintain their performance over time, even in challenging environments.

Safety is also a key consideration in these products. Equipped with multiple safety features, including overheat protection and flame sensors, users can rest assured their heating systems operate without risk. Additionally, these models often include advanced diagnostics, making troubleshooting easier and enhancing user experience.

In summary, Thermo Products' OH8FA119DV5R, OH8FA119D60R, OH6FA072D48B, OH6FA072D48N, and OH6FA072DV4N represent a blend of efficiency, technology, durability, and safety in heating solutions. Whether for a cozy home or a large commercial space, these models offer versatile options to meet diverse heating needs while prioritizing energy conservation and user convenience. As the demand for efficient heating continues to rise, Thermo Products remains a leader in providing innovative solutions that cater to modern heating requirements.
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