Thermo Products OD6FA072D48B, OD6FA072DV5R, OD6RX072DV5R Diagnostics, Diagnostic Features

Page 59

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.

cCAUTION: When testing electrical equipment, always follow standard electrical procedures.

2.Make sure thermostat is calling for burner operation.

3.Check oil supply and make sure all valves are open.

A. DIAGNOSTICS:

To assist in troubleshooting this appliance, it is equipped with an integrated safety and ignition control with diagnostics. These diagnostics include an indicator light that relays the operational status of the control and can help in diagnosing the condition of the flame sensor.

Diagnostic Features:

The Honeywell brand model R7184B (or alternate R7184U) safety and ignition control module used on this unit continuously monitors the operation of the heating system. If an abnormal condition occurs, the LED light on the control will rapidly flash indicating the operational status of the unit. In event this control malfunctions, the entire control should be replaced. It is not field-repairable.

In the event of an operational failure of the burner system, the rate of flashes, if any, of the ignition control module LED should be noted, before turning off power to the unit. Otherwise, power to the heating section will be interrupted and the control LED will not furnish the diagnostic flashing. It may be necessary to restart the furnace and have the failure occur again. For the model R7184B, under normal operating conditions, the LED will be continuously lit while the burner is operating.

If either control has sensed a flame failure, which was uncorrected by initiating another trial-for-ignition, the control will cease ignition trials and shutdown the burner, or “lockout”. The LED will continuously flash at a high rate (approximately 1/2-second “on”; 1/2 second “off”, for the model R7184B.

: If the appliance fails to relight after resetting the primary control twice contact a qualified service company. DO NOT continue to reset primary control.

The operational condition of the flame sensor, or “cad cell”, can be checked by depressing the reset button on the control module, while the burner is operating. Count the number of flashes of the LED and compare them to the table below.

Number of flashes

Cad Cell Resistance (in ohms)

 

Model R7184B

1

0 to 400

2

400 to 800

3

800 to 1600

4

1600 ≤

 

56

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Contents OD6FA072DV5R OD6RA075DV5R OD6FA072D48B OD6RA072D48B OD6FX072DV5ROD6FA072DV5B OD6RA072DV5B OD6RX072DV5R OD6FA072D48R OD6RA072D48RContents = Front = Rear = Highboy D = DownflowSafety Section Page Combustible material Codes and ClearancesNon-combustible material Counterflow OD6F*072D Horizontal OD6R*072D II. General Instructions Read Before Start of InstallationPrevention of Chimney Condensing ChimneyProper Chimney Size Proper Chimney Height Proper Vent Connector PIPE/CHIMNEY ConnectionFlue Pipe CLEARANCES, Sizing and Type Tight CLEAN-OUT Doors and ConnectionsTight Joints No Interconnected Chimney FluesReduction of Clearances with Specified Forms of Protection 15’ application MAX Venting Rotation of Front Flue ElbowAirflow Requirements and Sizing of Duct Work Draft RegulatorsDuct WORK/AIR Conditioning Page Page Examples OD6 Air FiltersMaximum Filter Type Air Velocity Model Number Ft/min Limit Position and Location Burner InstallationThis retainer when installing burner Page Page Burner insertion illustration Top view Burner Specifications and ApplicationsBeckett Riello Riello 2-stage burner specifications and applicationsBTU/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 CFM Heating Speed Set-ups Single StageLOW Capacity High Capacity Heating Speed Set-ups 2 StageCooling Speed Set-ups Cooling blower motor speed chartHeating speed by input Blower Controller Information for PSC Motor Terminal Definitions & Field WiringOutputs InputsOperating Modes On and OFF Blower Delay Time Switch Settings Diagnostic Features PSC Trouble ShootingOperating Instructions Startup ProceduresSTOP! Read the safety information above 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 Left Sign AIR Damper AdjustmentTurn to the Right Sign + 2nd Stage Adjustment 1st Stage AdjustmentAdjustment Of Heat Input Rate Page Checkout Procedure Inspection Areas III. Users Information SectionStarting the Burner Filter Cleaning and LocationIV. Installers Instructions to User General Inspection Dealer MaintenanceSafety During Servicing and Inspection Heat Exchanger Heat Exchanger Cleaning InstructionsHeat Exchanger Clean-Outs SUPPLY/RETURN AIR Filter Filter maintenance procedureElectrical System SUPPLY/RETURN AIR BlowerExtended Appliance Shutdown Filter replacementOn Startup On ShutdownVI. HOMEOWNER/USER Information and Routine Maintenance Beckett Burner Riello Burner Location of oil primary control reset buttonNumber of flashes Cad Cell Resistance in ohms Model R7184B DiagnosticsDiagnostic Features CAD Cell Checkout Procedure VIII. Sequence of Operations Flow Chart Page IX. Trouble Shooting Flow Chart Page Page Page Page Customer Appendix a Replacement Parts Page Replacement Parts for OD6R*072D Page Appendix B Wiring Diagrams OD6*A072DV5 ECM Wiring Diagram OD6*X072DV5 ECM 2-Stage Wiring Diagram

OD6FA072D48B, OD6FA072DV5B, OD6RA075DV5R, OD6FA072D48R, OD6RA072D48R specifications

The Thermo Products range, which includes models OD6RA072DV5B, OD6RA072D48R, OD6FA072DV5R, OD6RA072D48B, and OD6RX072DV5R, represents an advanced line of HVAC solutions designed for efficient heating and cooling performance. These models are tailored to meet the rigorous demands of both residential and commercial environments, combining innovative technologies with user-friendly features.

One of the standout features across these models is their enhanced energy efficiency. Utilizing advanced inverter technology, these units adjust their compressor speed to meet the precise heating or cooling demand, significantly reducing energy consumption and operational costs. Their Energy Star certification reflects their ability to perform optimally while minimizing environmental impact.

The OD6RA072DV5B and OD6RA072D48R models are particularly noted for their robust cooling capabilities, powered by cutting-edge refrigerant technology that allows for rapid cooling in even the hottest conditions. This is complemented by a multi-stage filtration system that not only improves air quality but also ensures a consistent airflow rate, reducing strain on the system.

In terms of installation and operation, these models are designed with user convenience in mind. The compact design allows for easy installation in a variety of settings, while the integrated smart controls enable remote monitoring and adjustments via mobile devices. This connectivity enhances user experience, providing real-time feedback on system performance.

The OD6FA072DV5R and OD6RA072D48B models are specifically engineered for superior quiet operation, incorporating sound-dampening technologies that minimize noise levels. This makes them an excellent choice for residential areas or spaces where noise reduction is a priority.

Durability and reliability are central characteristics of these Thermo Products models. Constructed with high-quality materials and protected against environmental factors, they have a longer lifespan compared to traditional HVAC systems. With a robust warranty program, users can have peace of mind knowing they are supported by a reliable product.

Overall, the Thermo Products line offers a competitive range of HVAC solutions. With their impressive efficiency ratings, advanced technologies, and user-centric features, models like the OD6RA072DV5B, OD6RA072D48R, OD6FA072DV5R, OD6RA072D48B, and OD6RX072DV5R stand as a testament to innovation in the heating and cooling industry.
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