Removing Old Burner Orifice :
11.Burner may be hot, wait until burner has cooled off. After noting the position of the condensation drain hole on the top of the burner. Turn the inner door/manifold/burner assembly upside. Using a phillips head screwdriver remove the 2 screws attaching the burner to the manifold pipe (saving screws for reinstallation later) (Figure 108).
12.Using a ratchet with 1/2” socket, remove the burner’s old orifice (Note: the burner orifices have different threads dependent upon the gas type. Right handed treads for natural gas (Figure 109).
Installing New Burner Orifice :
13.Using a ratchet with 1/2” socket, install the new burner orifice (Note: the burner orifices have different threads dependent upon the gas type. Right handed treads for natural gas (turn clockwise to install) and Left handed threads for propane gas (turn counterclockwise to install) (Figure 109).
14.Care MUST be taken to ensure the burner is installed correctly on the inner door/manifold assembly. Position the new burner upside down with the orientation of the burner’s condensation drain as shown in illustration (Figure 108).
15.Align the screw holes on the inner door/manifold assembly. Using the two screws removed in step 11, installed the new burner to the inner door/ manifold assembly (rotate the assembly to visually check the top portion of the burner assembly and confirm the orientation of the condensation drain hole on the top of the burner is toward the back as shown in the illustration) (Figure 108).
Installation Caution Must Be Taken:
16.Prior to installing the new inner door/manifold/ burner assembly, look inside the burner chamber to fully understand the correct positioning of the burner assembly and burner manifold tab (Figure 107). It may be necessary to use a flashlight
to ensure correct placement. Care must be taken so as to not damage any electrical wiring, components or the air pressure tubing as you are installing the new inner door/manifold/burner assembly.
Extra caution should be taken to ensure that electrical wiring, air hose, fiberglass insulation nor any other object is between door gasket and combustion chamber shield.
Figure 106. |
1/4” HEX |
HEAD SCREW |
Figure 107. |
|
INNER DOOR/ |
|
MANIFOLD/BURNER |
|
ASSEMBLY |
|
| SLOT |
INSTALL | BURNER’S |
TIP END | |
REMOVE | TAB |
|
Figure 108.
BURNER’S
CONDENSATION DRAIN
TOP VIEW
ORIENTATION OF SCOOP |
| |
TO BE ON THE SAME SIDE | VIEW PORT | |
AS THE VIEW PORT | ||
| ||
TWO SCREWS |
|
BURNER’S |
|
CONDENSATION DRAIN | BOTTOM VIEW |
|
Figure 109. |
BURNER |
ORIFICE |
SCREWS |
48