Century Jefferson manual Injector Orifice Size Matrix, Conversion to LP Input BTU/h

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Jefferson Direct Vent /Natural Vent Gas Heater

Pilot Hood

Pilot

Bracket

CO105a

Fig. 54 Remove pilot hood.

Index Tab

Allen Wrench

 

Snap Ring

 

CO106a

 

Fig. 55 Remove pilot orifice.

Pilot Hood

Index

Marks

Pilot Bracket

CO105

Fig. 56 Remove pilot hood. (Your pilot may have a different appearance.)

Remove pilot orifice with needlenose pliers. (Fig. 57) NOTE: Use a wrench to hold pilot tube in place while removing the orifice.

Install the conversion orifice.

Reinstall pilot hood and tighten until mark on pilot hood aligns withmark on pilot bracket.

14.Remove injector orifices from left burner leg using 1/2” wrench. (Fig. 58)

15.Install conversion orifices. (Refer to Table 2)

NOTE: Be sure burner leg remains at a 90° angle to firebox base after conversion.

 

Pilot

 

Orifice

 

CO106b

Fig. 57

Remove pilot orifice.

16.Replace burner. Slide the burner in at an angle with left side lower than the right side. slide the left side onto the injectors, making sure the burner leg remains at a 90° angle to the base. Lower the right hand side down in to place. Make sure the burner is as far left as possible and the injector shoulders are inside the burner.

NOTE: It is very critical to keep the left burner leg, which holds the injectors, at a 90° angle to the base. (Fig. 58) This keeps the orifices aligned with the tubes inside the burner. Failure to do so could affect the flame appearance and performance of the unit.

17.Place conversion label on valve

18.Reinstall the irght and left log bracket assembly.

19.Reinstall rear log bracket.

20.Replace the logs.

21.Replace glass and stove front.

Conversion is complete.

Left Burner Leg

Injector Orifices

90°

ST353a

Fig. 58 Remove and replace injector orifices.

Table 2. Injector Orifice Size Matrix

 

 

Conversion to LP

 

Input (BTU/h)

Kit #

Front

Part #

Rear

Part #

Minimum

Maximum

30004180

#69 / .029”

30000513

#54 / .055”

20000130

20,000

28,000

 

 

 

 

 

 

 

30004177

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Contents Jefferson Direct Vent/Natural Vent Gas Heater Table of Contents Installation & Operating Instructions Gas Equipment Venting System not Provided Requirements for the Commonwealth of MassachusettsJefferson dimensions Jefferson Direct Vent/Natural Vent Stove DimensionsClearance Requirements Installation RequirementsLocating The Stove Hearth Requirements Wall Centerline from FloorWall and Ceiling Clearances Gas Inlet and Manifold Pressures Gas SpecificationsHigh Elevations Horizontal Termination Direct Vent onlyVent Termination Clearances Restictor Plate is used on Direct Vent installations onlyVertical Termination Direct Vent only Location of Vent Termination General Venting Information Termination Location Canadian Installations1 US Installations2Termination Clearances Venting Requirements Natural Vent OnlyApproved Vent System Components Venting Requirements and Options Direct Vent onlyInstall the Optional Fan Assembly ProceduresTools Required Unpack the StoveFor Canadian installations The venting system must Venting System Assembly Direct Vent General InformationInstall the Vent Adapter Pipe Attach inner assembly to flue collar Attach the Inner Vent Assembly to the stoveSimpson Dura-Vent install outer adapter pipe Side Wall Termination AssemblyMeasure the horizontal length Vent Termination Below GradeVenting System Assembly Natural Vent General Information Vertical Through the Roof Vent AssemblyInstall the Vent Pipe Install the Log Set Air Shutter Adjustment Instructions Air Shutter AdjustmentAir Shutter Adjustment Connect the Gas Supply LineRemove stove front Install ON/OFF Switch Complete the AssemblyInstall the Stove Front Thermostat Connection optionalFlame Characteristics Flame & Temperature AdjustmentOperation Your First FireTo Turn Off Gas To Heater Lighting and Operating InstructionsSymptom Possible Causes Corrective Action Troubleshooting / Honeywell #8420 Gas Control SystemConversion Procedure Conversion PrecautionsFuel Conversion Instructions Pilot TypeConversion to LP Input BTU/h Injector Orifice Size MatrixMaintenance Stove Disassembly Gasket ReplacementInspect the Vent System Annually Check the Gas Flame RegularlyBLK Wiring DiagramsDescription Jefferson Direct Vent/Natural Vent Gas HeaterFuel Conversion Kits DescripciónRemote Controls Optional AccessoriesFan Kits Decorative Rings3636 Jefferson Direct Vent /Natural Vent Gas Heater 3838 CFM Corporation Toll Free Model EnerGuide Ratings Fireplace Efficiency % Efficiency Ratings