Bosch Aquastar 2400 ES Installation Instructions Manual page 6

Tankless water heater outdoor kit
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Measuring carbon dioxide (CO2)
6
Measuring carbon dioxide
(CO
)
2
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. 10
1
Measuring port
6
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This manual is also suitable for:

Aquastar 2700 esAquastar 2700 es