Thermo Products OH6FA072DV4N Proper Chimney Height, Proper Vent Connector PIPE/CHIMNEY Connection

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must be used, such as a Class "A" triple wall or insulated metal chimney. A liner will act as an insulator and reduce the stack gas temperature loss. Insulation may be added around the liner for further temperature stability. If the chimney is on the home's exterior or passes through a sizable, unheated area of the building, such as a porch, high ceiling attic, etc., and condensing occurs, the chimney must be insulated around its exterior to help the flue hold its temperature. Also, check to see if the chimney is too large for the furnace and other appliances connected to it. If so, reduce to proper size (see Appendix E of NFPA31) by lining. Be sure to use stainless steel liners, such as stainless types 430, 304, or for the toughest corrosion problems, type 316. If the chimney is the correct size for the unit and condensing still occurs, then insulating the vent connector and/or reducing the efficiency of the furnace may have to be done to raise the chimney temperature.

More detailed information may be obtained from the latest edition of the ASHRAE HVAC Systems and Equipment Handbook.

3. PROPER CHIMNEY HEIGHT:

The chimney shall terminate at least 3 feet above the highest point where it passes through the roof of a building and at least 2 feet higher than any portion of a building within a horizontal distance of 10 feet. (See Fig. 2a).

Fig. 2: Proper chimney termination height for pitched roofs

If the chimney penetrates a roof more than 10 feet from a ridge, wall or parapet, a minimum of 3 feet above roof or exit point must be maintained. See Figure 2b.

If the roof is flat rather than the normal residential pitched roof, refer to Figure 3 for proper clearances.

Fig. 3: Proper chimney termination height for flat roofs

4. PROPER VENT CONNECTOR PIPE/CHIMNEY CONNECTION:

The vent connector pipe should extend only to (and not beyond) the inside wall of the chimney (See Fig. 4). A thimble should be used to connect the vent connector pipe to the chimney so that the vent connector pipe may be readily removed in case of inspection or replacement.

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Contents OH6FA072DV4R OH6FA072DV4BOH6FA072DV4N OH6FX072DV4R Contents = Highboy D = Downflow = FrontSafety Section Page Codes and Clearances Combustible materialNon-combustible material Highboy OH6FA072D OH8FA119D II. General Instructions Read Before Start of InstallationType Model NO.1 From Sides Front Unit Furnace TOP Sides of Plenum From Rear FLUE/VENTProper Chimney Size ChimneyPrevention of Chimney Condensing Proper Vent Connector PIPE/CHIMNEY Connection Proper Chimney HeightNo Interconnected Chimney Flues Tight CLEAN-OUT Doors and ConnectionsTight Joints 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 General Inspection Dealer MaintenanceSafety During Servicing and Inspection Heat ExchangerHeat Exchanger Cleaning Instructions OH6 8FT OH8 8FT SUPPLY/RETURN AIR Blower Filter maintenance procedureElectrical System 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 BurnerCAD Cell Checkout Procedure DiagnosticsDiagnostic Features 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

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