Thermo Products OH8FA119DV5B, OH8FA119DV5R, OH8FA119D60R, OH6FA072D48N, OH6FA072DV4N Operating Modes

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EAC (electronic air cleaner)

The control provides a 120 VAC output for an electronic air cleaner. This output is energized whenever the fan motor is energized (either low, heat or cool speed). Connection is made via male quick connect terminal labeled “EAC”.

Humidifier

The control provides a 120 VAC output for a humidifier. Connections are made to a male quick connect terminal labeled “FAN”. The control does not switch this output, it provides a pass-through connection from P1-7 from the switched primary voltage of the Burner Module.

Status LED

A red LED is provided to indicate any thermostat input has been recognized by the microprocessor on the control. See Diagnostic Features for a function description of operation.

Thermostat Input LEDs

Four green LEDs are placed beneath their respective thermostat connections (W, Y, G and DEHUM) and operate whenever a call is present. See Diagnostic Features for a function description of operation.

C. Operating Modes

Standby Mode

All outputs are off and the control is waiting for a thermostat demand. The thermostat inputs, and limit switch are continuously monitored. The control initiates action when a thermostat call is received or limit switch opens.

Fan Mode

A call for fan (“G”) is received from the thermostat. If no other mode is calling for blower operation, the control will operate the fan relay (K4) and power the “Low” blower speed terminal. The fan mode will be operated as long as the “G” input is calling and neither the Heat mode nor the Cool mode is calling for blower operation. When the Heat and Cool modes call for blower operation, their respective outputs will take precedence after their respective turn-on time delays have expired.

Cooling Mode

A call for cool (“Y”) is received from the thermostat. If the heat mode is not active or the anti-short cycle delay is not in effect, the control will energize the “CC” terminal and after a 10 second power demand conservation delay energizes the “COOL” speed blower terminal.

When the call for cool is satisfied, the “CC” terminal is de-energized and the cooling off delay of 45 seconds is started. Forty-five seconds later the “COOL” speed blower terminal is de-energized and the control reverts to Standby Mode.

Dehumidification Operation

If a call for dehumidification is received while the Cool Mode is active, blower speeds will be reduced. The PSC “COOL” blower speed terminal (1158-100 model only) will be de-energized and “Low” blower speed will be energized.

Anti-Short Cycle Operation

To prevent compressor short cycling, a call for cooling will be ignored for four minutes after the termination of any cooling call. The anti-short cycle delay is also in effect at power-up.

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Contents OH6FA072DV4R OH6FA072DV4BOH6FA072DV4N OH6FX072DV4R Contents = Highboy D = Downflow = FrontSafety Section Page Codes and Clearances Combustible materialNon-combustible material II. General Instructions Read Before Start of Installation Type Model NO.1 From Sides Front Unit FurnaceHighboy OH6FA072D OH8FA119D TOP Sides of Plenum From Rear FLUE/VENTProper Chimney Size ChimneyPrevention of Chimney Condensing Proper Vent Connector PIPE/CHIMNEY Connection Proper Chimney HeightTight CLEAN-OUT Doors and Connections Tight JointsNo Interconnected Chimney Flues Flue Pipe CLEARANCES, Sizing and TypeReduction of Clearances with Specified Forms of Protection Venting Rotation of Front Flue ElbowDraft Regulators Duct WORK/AIR ConditioningAirflow Requirements and Sizing of Duct Work Page Supply air duct sizing Example Air Filter Mounted External to Furnace ExamplesA typical filter rack and dimensions for the OH6 furnace Maximum Filter Type Air Velocity Model Number Ft/min Limit Position and LocationOH6 OH8 Burner Installation Do not remove this retainer when installing burnerBurner Specifications and Applications Do not Change Position of the ChamberBeckett Riello BTU/HRMounting the 2-STAGE Riello Burner BTU/HR Heating CapacityOIL Tank and Piping OIL Filter Electrical WiriingElectronic Air Cleaner EAC and Humidifier Installation Thermostat Anticipator Setting Fan Control ModulePreferred method of adjustment Heat Anticipator Adjustment ScaleBlower Motor Speed Selection Heating Speed Set-ups OH6FA072DV41A ECM blower motor speed chart OH8FA119DV5Heating Speed Set-ups 2 Stage OH6FX072DV4Cooling blower motor speed chart 3A Cooling blower motor speed chart Cooling Speed Set-upsOH6FA072D48 HighOH8FA119D60 12.5/1270 11.7/1200 11.2/1150 10.7/1110 10.2/1060 1020 969Terminal Definitions & Field Wiring Blower Controller Information for PSC MotorInputs OutputsOperating Modes On and OFF Blower Delay Time Switch Settings PSC Trouble Shooting Diagnostic FeaturesSTOP! Read the safety information above Startup ProceduresOperating Instructions Adjustment of Burner Combustion To Turn Off Oil to ApplianceCombustion Head Setting for 2-STAGE Riello Burner Preliminary Adjustment of Burner Air Band and Air ShutterTurn to the Right Sign + AIR Damper AdjustmentTurn to the Left Sign 1st Stage Adjustment 2nd Stage AdjustmentAdjustment Of Heat Input Rate Page Checkout Procedure III. Users Information Section Inspection AreasFilter Cleaning and Location Starting the BurnerIV. Installers Instructions to User Dealer Maintenance Safety During Servicing and InspectionGeneral Inspection Heat ExchangerHeat Exchanger Cleaning Instructions OH6 8FT OH8 8FT Filter maintenance procedure Electrical SystemSUPPLY/RETURN AIR Blower SUPPLY/RETURN AIR FilterExtended Appliance Shutdown Filter replacementOn Shutdown VI. HOMEOWNER/USER Information and Routine Maintenance On StartupPage Location of oil primary control reset button Beckett Burner Riello BurnerDiagnostics Diagnostic FeaturesCAD 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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OH8FA119D60B, OH8FA119DV5B, OH6FX072DV4R, OH6FA072DV4N, OH6FA072D48N 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.

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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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