Adams Condensing Oil-Fired Furnace Installation Manual
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Contents
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The furnace may be installed with a one-pipe systemwith gravity feed or lift. The maximum allowable lifton a single line system is 8 feet. Lift should bemeasured from the bottom (outlet) of the tank, to theinlet of the burner. Sizing a single line system iscomplex because of the difficulty estimating thepressure drop through each fitting, bend andcomponent in the line. In general, keep single linesystems short as possible. Two-stage oil pumps areavailable for either the INTERburner or Beckettburner.The following chart shows the allowable line lengths(horizontal & vertical) for single and two stage oilpumps. All distances are in feet.In retrofit applications, where an existing oil linesystem is in place, a vacuum check will helpdetermine the integrity of the eXisting oil line system.The vacuum in a system should not exceed 6" Hg.For a single pipe system, not 12" Hg. For a two-pipesystem.To eliminate air leakage, fuel line should be acontinuous length from tank to burner and flarefittings must be used on all connections. On threadedconnections, use pipe dope that is resistant to fuel oil(Rector seal #5, Permatex or eqUivalent). Do not usePTFE joint tape.OIL LINESCopper Tubing Oil Line Lengths (Feet)Single-Pipe Two-PipeLiftFt.3/8"0.0TubingYo"0.0Tubing3/8"0.0.TubingYo"0.0.Tubing0 53 100 68 1001 49 100 65 1002 45 100 63 1003 41 100 60 1004 37 100 58 1005 33 100 55 1006 29 100 53 1007 25 99 50 1008 21 83 48 1009 17 68 45 10010 13 52 42 10012 - - 37 10014 - - 32 10016 - - 27 10018 - - 22 88For additional information, see the installationinformation sheet included in the documents envelopeor affixed to the oil burner and R.W. Beckett Bulletin(664805)SoMng After Drip and Locating Oil Line LeaksBulletin (664822).NOTE: Both the INTERburner AND Beckett oilburners require the use of a bypass plug whenconverting from single-pipe to two-pipe oil pipingsystems. See burner manufacturer's instructions.X. CIRCULATING AIR & FILTERSDuctwork· Air FlowDuct systems and register sizes must be properlydesigned for the CFM and external static pressurerating of the furnace. Design the ductwork inaccordance with the recommended methods of "Airconditioning Contractors of America" Manual D.Install the duct system in accordance with Standardsof the National Board of Fire Underwriters for theinstallation of Air Conditioning, Warm Air Heating andVentilating Systems. Pamphlets No. 90A and 90B.A closed return duct system must be used, with thereturn duct connected to the furnace.NOTE: Ductwork must never be attached to the backof the furnace.Flexible joints may be used for supply and returnconnections to reduce noise transmission. To preventthe blower from interfering with combustion air ordraft when a central return is used, a connecting ductmust be installed between the unit and the utility roomwall. Never use a room, closet, or alcove as a returnair chamber.No furnace will operate or heat properly if theduct work it is attached to is not sized or installedcorrectly. Warm air runs should have dampersinstalled so that they can be balanced room toroom. Dampers should be adjusted to provide aminimum of 0.20 and a maximum of 0.50 incheswater column external static pressure in the warmair plenum.Keep in mind that 95% of all burnerand pump problems are caused bythree factors:Air leak in the fuel line, Improperlysized fuel lines and dirty fuel.16 |
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