Bosch GWH 2400 ES NG - 6 Maintenance and service; 6.1 Annual maintenance; 6.2 Winterizing for seasonal use

6 720 608 782
30
Maintenance and service
Final Readings
P2 CO
2
Reading: % CO
2
P1 CO
2
Reading: % CO
2
Fig. 55 Adjusting P1 CO
2
level
Fig. 56 Adjusting P2 CO
2
level
CO
2
range (%)
Max. CO
level
(measured)
Nat. Gas
max. input P1 6.9 % - 7.5 % < 250 ppm
min. input P2 2.3 % - 2.6 % < 60 ppm
LP Gas
max. input P1 8.1 % - 8.7 % < 250 ppm
min. input P2 2.5 % - 2.8 % < 60 ppm
* Values above are for climate controlled conditions.
Inputs such as gas pressure, heating value of the gas,
humidity and temperature of combustion air all impact CO
and CO
2
values. Changes in these inputs can result in
different CO and CO
2
values on the same appliance.
Table 14 CO
2
& CO target numbers
6720608158-38.1AL