Thermo Products OH6FA072D48B, OH8FA119DV5R Electrical System, SUPPLY/RETURN AIR Blower

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4. Operational Check:

CAUTION: Before troubleshooting, familiarize yourself with the start up and check out procedures

NOTICE: After reassembling the appliance, check for fuel oil leakage from the supply piping.

a.Check proper operation of the ignition system and for proper combustion.

b.Observe the main burner flame. If the flame appears strange or abnormal in character, look for a component or components that were not reassembled correctly. If the components have been reassembled correctly, check for a blocked vent, malfunctioning combustion air blower or fuel pump, and partially blocked burner nozzle.

D. ELECTRICAL SYSTEM:

WARNING: When servicing controls, label all wires prior to disconnecting. Correctly reconnect any wires removed during servicing. Wiring errors can cause improper and dangerous operation. Dangerous operation can result in injury or damage.

1.Check all wiring for loose connections and any signs of damage, or unusual wear. Replace any damaged or frayed wiring and tighten any loose connections.

2.Use a voltmeter, or a multimeter, to check for adequate voltage at the field connections when the appliance operating.

3.Use an ammeter, or a multimeter, to check the current draws of the blower motor and burner assembly, to assure they are not exceeding rating label current specifications for each component. Also, refer to Table 10 in the electrical wiring section of this manual for electrical specifications on these components.

4.Check for correct operation and proper settings (if manually adjustable) of all controls.

E. SUPPLY/RETURN AIR BLOWER:

Check in the blower compartment for dust, dirt, debris, and for the presence of insects. Remove any foreign material. Clean the blower wheel, housing, and compartment of dust and lint with a vacuum.

The blower motor has sealed bearings that are permanently lubricated. The blower motor bearings do not require oil or any type of additional lubrication.

F. SUPPLY/RETURN AIR FILTER:

The filter rack will be located between the return air plenum and the return air opening on the side of the furnace. This filter should be inspected regularly. When the filter is dirty, it should be cleaned or replaced to assure proper heating/cooling system operation. Follow the cleaning, removal and replacement procedure below.

Filter maintenance procedure:

Shut off the electrical power to the unit. Open the access door. Slide the air filter out of the filter rack. Clean the filter by either vacuuming, rinsing with tap water, hosing, or dipping in an ordinary detergent solution. After cleaning and drying the filter, replace the completely dry filter in the rack. If the filter has a supporting mesh, the mesh side of the filter must be placed towards the furnace.

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Contents OH6FA072DV4B OH6FA072DV4ROH6FA072DV4N OH6FX072DV4R Contents = Front = Highboy D = DownflowSafety Section WARNING and Cautions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 Draft Regulators Duct WORK/AIR ConditioningAirflow 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 Limit Position and Location Maximum Filter Type Air Velocity Model Number Ft/minOH6 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 ShootingStartup Procedures STOP! Read the safety information aboveOperating 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 BurnerAIR Damper Adjustment Turn to the Right Sign +Turn to the Left Sign 2nd Stage Adjustment 1st Stage AdjustmentAdjustment Of Heat Input Rate Page Checkout Procedure III. Users Information Section Inspection Areas Caution do not Attempt to Make Repairs Yourself Starting the Burner Filter Cleaning and LocationIV. Installers Instructions to User Dealer Maintenance Safety During Servicing and InspectionGeneral Inspection Heat Exchanger OH6 8FT OH8 8FT Electrical System Filter maintenance procedureSUPPLY/RETURN AIR Blower SUPPLY/RETURN AIR FilterFilter replacement Extended Appliance ShutdownOn 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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