High Altitude Installations - Heat & Glo XLR-N-AU Owner's Manual

Access Through the Valve Assembly
The lower access cover panel is removable if fi nishing
material has not been previously installed.
Remove Media Tray, Burner Assembly, and Base pan.
To access components:
1. Remove eleven screws around perimeter of valve
plate that secure valve plate to the fi rebox bottom.
See Figure 11.2.
2. Lift the valve plate from the back so that the gas valve
can clear the valve plate hole in the bottom the fi rebox.
See Figure 11.3.
Figure 11.2. Remove Valve Plate Screws
3. Set the valve bracket on the front lip of the fi rebox bot-
tom. Turn "off" the ball valve. Disconnect gas valve
from the gas fl ex ball valve assembly at the pressure
fi tting. See Figure 11.4.
Figure 11.3. Remove Valve Plate
4. Lift the valve assembly up and out to make necessary
service or repair.
42 Heat & Glo • XLR-N-AU, XLR-PB-AU • 2198-906 Rev. C • 3/10
Figure 11.4. Disconnect Gas Valve
Valve Pressure Taps
The pressure taps are available through the front of the
appliance. The decorative mesh front and fi replace gas
assembly must be removed to gain access to the pressure
taps.
MANIFOLD
OUTLET
Figure 11.5. Pressure Taps
Note: The manifold and inlet pressure tabs can be accessed
from the front of the fi replace, this requires the decorative
front and fi xed glass assembly to be removed (see Figure
11.5). The manifold and inlet pressure tabs can also be ac-
cessed by removing the valve assembly (see Figure 11.4).
C. High Altitude Installations
NOTICE: If the heating value of the gas has been reduced,
these rules do not apply. Check with your local gas utility
or authorities having jurisdiction.
When installing above 610 meters elevation:
Reduce burner orifi ce 4% for each 305 meters above 610
meters.
INLET