Thermo Products OL6RX072DV5(R), OL6FA072DV5(B/R), OL6RA072D48(B/R), OL6FA072D48(B/R), OL6FX072DV5(R)

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The ASHRAE Handbook – Fundamentals is an excellent source of duct system design principles and pressure drop data. Conversely, for a specified type of fitting, it is also possible to determine the required size or diameter of the component for a specified pressure drop and flow rate.

The ASHRAE Handbook – Fundamentals is an excellent source of duct system design principles and pressure drop data. Conversely, for a specified type of fitting, it is also possible to determine the required size or diameter of the component for a specified pressure drop and flow rate.

h.The resistance of the take-off and the outlet register (or return grill) should then be summed together to determine the total pressure drop for each branch. This value should be close to the assumed value for the pressure drop of the system. If it is not close, then flow rates for each branch must be adjusted, or the design of the duct system must be altered, to give the proper pressure drops. Usually, the cross-sectional area of the ductwork should be changed in order to adjust the pressure drop to a suitable value. Refer to Example 2, (page 14) for a sample calculation of how to use this method for sizing the supply side ductwork for a residence.

Table 3 shows the air handling capacities of 100-ft. lengths of circular and rectangular ductwork based on a 0.1 in. W.G. static pressure drop. The first column to the right is the airflow rate and the second is the required diameter for a circular duct. The third column is the required cross-sectional area of the duct and the other columns to the left are rectangular ducts with sufficient cross-sectional area to handle the flow at the specified pressure drop. [For lengths of ductwork less than 100 ft., simply multiply 0.1 in. W.G. by the ratio of the actual duct length (in feet) over 100 ft. for the approximate pressure drop.] Use the supplier’s catalog for proper sizing of outlet air registers and return air grills to insure that they provide the required flow rate at the desired pressure drop.

Table 3: Suggested Duct Sizes for Homes, Quiet Offices, Or Similar Installations

(Based on a 0.1 in. W.G. static pressure drop per 100 ft. of duct.)

7.The supply and return air ducts, or flexible joints, should be carefully secured and sealed to the appliance housing to prevent air leakage from, or into, the duct system. For best performance, insulate the outside surfaces of the ducts to reduce heat loss from, or heat gain to, the ducts.

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Contents OL6RA072D48B/R OL6FA072D48B/ROL6RA072DV5B/R OL6RX072DV5RCONTENTS Configuration FeatureModel Number Digit FuelI. SAFETY SECTION cWARNING AND CAUTIONScCAUTION DO NOT ATTEMPT TO START THE BURNER WHEN 1.Excess oil has accumulatedPage A. CODES AND CLEARANCES a. Combustible materialb. Non-combustiblematerial A. CHIMNEY TYPE OFFROM MODEL NO1. PROPER CHIMNEY SIZE 2. PREVENTION OF CHIMNEY CONDENSING4. PROPER VENT CONNECTOR PIPE/CHIMNEY CONNECTION 3. PROPER CHIMNEY HEIGHT7. TIGHT CLEAN-OUTDOORS AND CONNECTIONS 6. TIGHT JOINTS8. NO INTERCONNECTED CHIMNEY FLUES 9 FLUE PIPE CLEARANCES, SIZING AND TYPEB. VENTING C. DRAFT REGULATORS ROTATION OF FRONT FLUE ELBOWNote Do not use with Direct Vent application D. DUCT WORK/AIR CONDITIONING Airflow Requirements and Sizing of Duct WorkPage The ASHRAE Handbook - Fundamentalsis an excellent source of duct system design principles and pressure drop data. Conversely, for a specified type of fitting, it is also possible to determine the required size or diameter of the component for a specified pressure drop and flow rate 1.HEATING CFM HEAT OUTPUT OF FURNACE BTUH 1.1 X TR TEMPERATURE RISE, F = HEATINGCFME. Air Filters Mounted Internal to Furnace MaximumModel Number Filter TypeF. LIMIT POSITION AND LOCATION G. BURNER INSTALLATION DO NOT CHANGE POSITION OF THE CHAMBERH. BURNER SPECIFICATIONS AND APPLICATIONS OIL NOZZLE CAPACITY CHART+ INSULATOR S = SLEEVE OR N = NONE NOZZLE SIZE2 STAGE FIRING RATES CAPACITYFIRING NOZZLE SIZEMOUNTING THE 2-STAGERIELLO BURNER I. OIL TANK AND PIPING5.A readily accessible, design-certified,manual oil shutoff valve, with a non-displaceablerotor member, shall be installed in the fuel oil supply piping within 6 feet of the appliance J. OIL FILTER K. ELECTRICAL WIRIINGAssembly MaximumWire size selections in Table 10 are based upon Table 310-16of the National Electrical Codefor three copper conductors, with insulation rated for 75 degrees Celsius, contained in raceway at 30 degrees Celsius. For other wire insulation temperature ratings and ambient conditions, refer to the National Electrical Codefor the minimum wire sizing requirements Thermostat Anticipator Setting Preferred method of adjustment L. Blower Motor Speed Selection Heating Speed Set-ups OL6*A072DV5Furnace Motor Current Draw Amps/ / Watts vsLOW CAPACITY HIGH CAPACITY= Recommended heating speed setting Heating Speed Set-ups 2 - Stage OL6*X072DV5Cooling Speed Set-ups OL6**072DV5 Furnace Motor CurrentDraw Amps / Watts vs External Static Pressure in W.CPage M. BLOWER CONTROLLER INFORMATION FOR PSC MOTOR TERMINAL DEFINITIONS & FIELD WIRINGA. Inputs B. OutputsC. Operating Modes Heat Mode PSC TROUBLE SHOOTING DIAGNOSTIC FEATURESN. STARTUP PROCEDURES Operating InstructionsFor Your Safety Read Before Operating i.STOP! Read the safety information above2. Adjustment of Burner Combustion To Turn Off Oil to ApplianceCOMBUSTION HEAD SETTING FOR 2-STAGERIELLO BURNER TURN TO THE RIGHT SIGN + AIR DAMPER ADJUSTMENTTURN TO THE LEFT SIGN 1st STAGE ADJUSTMENT 2nd STAGE ADJUSTMENT3. Adjustment Of Heat Input Rate Notice Minimum return air temperature is 55F4. Setting Supply Air Temperature Rise 5. Checkout Procedure III. USERS INFORMATION SECTION C. INSPECTION AREAScCAUTION DO NOT ATTEMPT TO MAKE REPAIRS YOURSELF cCAUTION DO NOT ATTEMPT TO START THE BURNER WHENE. FILTER CLEANING AND LOCATION D. STARTING THE BURNERIV. INSTALLERS INSTRUCTIONS TO USER A.GENERAL INSPECTION V. DEALER MAINTENANCESAFETY DURING SERVICING AND INSPECTION C. HEAT EXCHANGER CLEANING INSTRUCTIONS B. HEAT EXCHANGERFigure 24 Heat Exchanger Clean-Outs Vacuum Hose Length OL6 8FTFilter maintenance procedure D. ELECTRICAL SYSTEME. SUPPLY/RETURN AIR BLOWER F. SUPPLY/RETURN AIR FILTERFilter replacement G. EXTENDED APPLIANCE SHUTDOWNON STARTUP 2.Remove the furnace front door Beckett Burner Riello BurnerVII. TROUBLESHOOTING A. DIAGNOSTICSDiagnostic Features PERSONNEL, AND NOT BY THE FURNACE OWNERB. CAD CELL CHECKOUT PROCEDURE VIII. Sequence of Operations Flow Chart Page IX. Trouble Shooting Flow Chart Page Page Page Page HEATING CUSTOMERSYSTEM Appendix - A Replacement Parts Replacement Parts for OL6F*072DPage Replacement Parts for OL6R*072D Page Appendix - B Wiring Diagrams OL6*A072D48 PSC Wiring DiagramOL6*A072DV5 ECM Wiring Diagram OL6*X072DV5 ECM 2-StageWiring Diagram