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All installations and services must be performed by qualified service personnel.
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3. Remove the burner box cover by removing the outer row of screws holding the cover. (See figure 1).
:
The regulator of the gas valve will not function properly if the hose connection between the
gas valve and burner box is not made.
Figure 1.
4. Remove the four screws securing gas the manifold in the burner box. Pull the manifold far enough out
of the burner box to access the burner orifices. (See figure 2)
5. Remove the main burner orifices from the manifold using a 1/2-inch wrench. Replace the main burner
orifices with conversion orifices as referenced in the chart on the front cover.
6. Refer to the instructions provided in the gas valve conversion kit for regulator spring change out
procedure.
7. Reinstall the manifold into the burner box. Make sure that all the orifices are correctly inserted into
their respective burners and the groove of the rubber grommet on the manifold lines up on the edge of the
burner box to seal around the manifold. Secure the manifold in place with four screws. (See figure 2).
8. Inspect the seal on the burner box cover and, if damaged, repair it. Install and secure the burner box
cover. Make sure all the fastening screws are reused.
9. Check to make sure that the electrical connections to the gas valve are snug.
10. Confirm the plastic hose from the pressure switch is attached securely to the hose barb at the outlet
of the gas valve without being kinked;
11. Reconnect the furnace to the gas supply.