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Maintenance and service
39
6.6 Program values
This section describes details on programming the
appliance. For most applications the factory default val-
ues 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 6.7 Control board diagnostics (page
35) regarding how to access these P-modes.
Caution: Misadjusted program
values can lead to appliance
malfunction, errors, and service
calls.
Program Description Factory Default MIN MAX Comment
P0 Temperature range
settings
H: GWH C 920 ES
C: GWH C 920 ESC
_ _ This values are set from factory
they cannot be changed.
P1 Maximum Fan
Speed Power
NG:52, LP:53 21 NG:52, LP:53 see chapter 3.13, page 29
note: reducing P1 values below
maximum will reduce maximum
power of the appliance.
P2 Minimum Fan
Speed Power
12 12 20 see chapter 3.3.6, page 16
P3 Remote Control
Registration
_0 _0 6 see chapter 5.5, page 33
P4 Access to
Diagnostic Mode
E 0d 10F see chapter 6.7, page 40
P5 Cascade Mode NO NO CC contact Bosch
Thermotechnology for details
P6 Temperature Unit °F °F °C
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 primary and secondary
fans when P9 is selected by
depressing the “P” - button
Table 18 Program values, factory default settings and ranges.
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