Century Jefferson manual Gasket Replacement, Inspect the Vent System Annually, Stove Disassembly

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ST208a

Fig. 60

Release the latches to release the glass frame.

Gasket Replacement

The Jefferson Gas Heater uses a ‘tadpole’ type gasket to seal between the glass panel and the frame. In time, this gasket can become brittle and compressed and should be replaced. New gasket is available from your dealer.

Shut off the gas supply and allow the stove to cool. Wear safety goggles and a dust mask.

1.Remove the Front, Glass Frame and Glass Panel. (Figs. 59 & 60) Remove the old gasket. Use a razor blade to separate the glass and gasket from the frame, and to clean the glass of any remaining cement or bits of gasket. Use a cold chisel if neces- sary.

2.Determine the correct length of gasket by laying it out around the edge of the glass. Allow an extra 1

- 2” (25-50mm). Mark the spot to be cut. Use a utility knife.

3.Starting on a long edge, remove about 6” of the pro- tective paper strip and apply the flat adhesive face of the gasket around the outside-facing edge of the panel. Continue around the panel, applying a bout 6” at a time and being careful to not stretch the mate- rial. Do not overlap the gasket ends. (Fig. 61)

4.Apply a thin bead of high temperature silicone rubber sealant along the inside corner of the glass frame, all around the perimeter. Place the flat gasketed side of the glass panel back into the steel frame. Pinch the rounded inside-facing gasket mate- rial to bulk it up.

5.Replace the glass frame and front panel as previ- ously described.

Jefferson Direct Vent /Natural Vent Gas Heater

Inspect the Vent System Annually

Have the vent system inspected annually by a quali- fied technician. Shut off the main gas supply before inspecting the system. Both the inner exhaust pipe and the outer combustion supply pipe must be checked to

confirm that they are unblocked and in good condition.

Check the Gas Flame Regularly

To ensure that the stove is operating properly, check the flames periodically to confirm that they match Page

24.The flames will be blue during the first 15-20 min- utes of operation, and will gradually turn to yellow after that.

Do not use your stove if the flame pattern differs from that shown here. Contact your CFM Corporation dealer or a qualified technician for help.

Stove Disassembly

If there is ever a need to remove the firebox assem- bly from the stove shell, support the firebox with solid stands about 6” (152 mm) tall under the left and right outer edges of the firebox base. Do not set the firebox assembly directly on the floor; this can damage the control valve and/or the gas lines from the valve to the firebox.

Before removing the firebox from the shell, disconnect the on/off switch wires from the valve. If the assembly includes the optional fan, disconnect the fan rheostat.

If the installation includes a wall thermostat, disconnect the thermostat leads from the valve.

Disconnection and reconnection to the gas line should only be done by a qualified gas service technician.

Upon reinstallation, the vent system must be sealed to the firebox as shown in the installation section, Page

14.Also be sure the logs are placed in the firebox cor- rectly, as shown on Page 21.

ST179

Fig. 61 Wrap the gasket material around the outside edge of the glass.

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 DimensionsLocating The Stove Installation RequirementsClearance Requirements Wall and Ceiling Clearances Wall Centerline from FloorHearth Requirements Horizontal Termination Direct Vent only Gas SpecificationsGas Inlet and Manifold Pressures High ElevationsVertical Termination Direct Vent only Restictor Plate is used on Direct Vent installations onlyVent Termination Clearances 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 onlyUnpack the Stove Assembly ProceduresInstall the Optional Fan Tools RequiredInstall the Vent Adapter Pipe Venting System Assembly Direct Vent General InformationFor Canadian installations The venting system must 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 Connect the Gas Supply Line Air Shutter AdjustmentAir Shutter Adjustment Instructions Air Shutter AdjustmentRemove stove front Thermostat Connection optional Complete the AssemblyInstall ON/OFF Switch Install the Stove FrontYour First Fire Flame & Temperature AdjustmentFlame Characteristics OperationTo Turn Off Gas To Heater Lighting and Operating InstructionsSymptom Possible Causes Corrective Action Troubleshooting / Honeywell #8420 Gas Control SystemPilot Type Conversion PrecautionsConversion Procedure Fuel Conversion InstructionsConversion to LP Input BTU/h Injector Orifice Size MatrixMaintenance Check the Gas Flame Regularly Gasket ReplacementStove Disassembly Inspect the Vent System AnnuallyBLK Wiring DiagramsDescription Jefferson Direct Vent/Natural Vent Gas HeaterFuel Conversion Kits DescripciónDecorative Rings Optional AccessoriesRemote Controls Fan Kits3636 Jefferson Direct Vent /Natural Vent Gas Heater 3838 CFM Corporation Toll Free Model EnerGuide Ratings Fireplace Efficiency % Efficiency Ratings