Maintenance and service
55
940 ES – 6 720 644 930 (2019/09)
7.5 Program values
This section describes details on programming the appliance.
For most applications the factory default values will provide
robust and stable operation. Only adjust the factory settings if
the installation requires changes as indicated in the
appropriate section of this manual.
Refer to chapter 7.6 Control board diagnostics (page 56)
regarding how to access these P-modes.
CAUTION:
Appliance malfunction!
▶ Misadjusted program values can lead to appliance
malfunction, errors, and service calls.
Table 37 Program values, factory default settings and ranges.
Program Description Factory Default MIN MAX Comment
P1 Maximum Power NG: 54,
LP: 46
21 NG: 55,
LP: 49
see chapter 4.14, page 45
note: reducing P1 values below maximum will
reduce maximum power of the appliance.
P2 Minimum Power 7 7 20 see chapter 4.3.8, page 30
P3 Remote
Controls installed
_0 _0 6 see chapter 6.5, page 49
P4 Access to
Diagnostic Mode
E 0d 10f see chapter 7.6, page 56
P5 Cascade Mode NO NO CC contact Bosch for details
P6 Temperature Unit °F °F °C
P7 Gas type selection LP or NG Preset from factory.
Contact Bosch for details.
P8 Back light dE dE On dE turns back light off after 60 seconds from last
button pushed, ON turns backlight on
permanently.
P9 Fan Purge Runs secondary fan and primary fan when P9 is
selected by depressing the “P” - button
PH Cascading type IC IC SC This menu is only available when cascade mode
is selected CC.
Contact Bosch Water Heating for details.
PC Primary/Secondary
mode
CS CS Cn
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