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Measuring carbon dioxide (CO2)
6
Measuring carbon dioxide (CO
B See the water heater installation manual for details
on measuring carbon dioxide (CO
Warning: Outdoor vent cap will get
very hot during operation.
B Ensure the vent cap is cool before
performing the procedure below.
B To measure CO
on this appliance, a measuring port
2
is available under the louvered grill on the front of the
outdoor vent cap.
B To access measuring port, remove two screws on
either side of the louvered grill.
B Pull louvered grill free from vent cap.
B When measuring is complete, replace louvered grill
with screws.
Fig. 11
1
Measuring port
8
)
2
).
2
6 720 608 835
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