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

	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 31