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All installations and services must be performed by qualified service personnel.
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4. Remove the four screws securing the manifold in the burner box. Pull the manifold
far enough out of the burner box to access the burner orifices. (See figure 8)
5. Remove the main burner orifices from the manifold using a 1/2-inch wrench.
Replace the existing main burner orifices with conversion orifices as indicated in
table 1.
6. Refer to the instructions provided in the gas valve conversion kit for regulator spring
change out instructions.
7. Reinstall the manifold into the burner box. Make sure that all orifices go 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 it with four
screws. (See figure 8).
8. Inspect the seal on the burner box cover and if damaged replace it. Install and
secure the burner box cover. Make sure all the fastening screws are used.
9. Check to make sure that the electrical connections to the gas valve are tight.
10. Check that the plastic hose from the pressure switch is attached securely to the
hose barb at the outlet of the gas valve without being kinked.
: The regulator of the gas valve will not function properly if this hose
connection is not made.
11. Reconnect the furnace to the gas supply.
12. Refer to initial start-up and operating instructions for test fire and burner
adjustments.