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Control Board Diagnostics - Bosch C 1210 ES/ESC Manual

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Program
Description
P0
Temperature range
settings
P1
Maximum Power
P2
Minimum Power
P3
Remote
Controls installed
P4
Access to
Diagnostic Mode
P5
Cascade Mode
P6
Temperature Unit
P7
Gas type selection
P8
Back light
P9
Fan Purge
PH
Cascading type
PC
Primary/Secondary
mode
Table 34 Program values, factory default settings and ranges.
7.7

Control board diagnostics

1. Press ON/OFF button
into ON.
2. Press and hold simultaneously buttons
seconds, until display reads P2.
3. Press
to enter P2 adjustment. The current setting will appear on
P
the display. If not, repeat process.
4. Press and release the
button on the control panel until the
P
display reads 'P4'. You are now in the diagnostic mode of the control
board.
5. When the display reads 'P4', press and release the
again and the display should read 'E'.
+
6. Use the
and
button on the control board to cycle through
different diagnostic modes available.
7. Once in the selected diagnostic mode of your choice, press and
release the
button to display the diagnostic information.
P
EXAMPLE: to read the flow rate in gallons per minute while the unit is
flowing water, cycle to the '3d' mode and press the
reading of 25 on the display would indicate the heater is reading a flow
rate of 2.5 gallons/minute.
8. Once the information is obtained, press the
return to the diagnostic mode menu and scroll to addition diagnostic
information.
9. Press ON/OFF button to turn OFF the appliance and back ON again to
return heater to normal function.
C 1210 ES/ESC
Factory Default
MIN
H: C 1210 ES
-
C: C 1210 ESC
NG: 52,
21
LP: 53
12
12
_0
_0
E
0d
NO
NO
°F
°F
LP or NG
dE
dE
IC
IC
CS
CS
+
or
and
for 3
P
+
button once
button. A
P
button again to
P
MAX
Comment
-
This values are set from factory they cannot be
changed.
NG: 52,
see chapter 4.14, page 31
LP: 53
note: reducing P1 values below maximum will
reduce maximum power of the appliance.
20
see chapter 4.3.7, page 21
6
see chapter 6.5, page 34
10F
see chapter 7.7, page 39
CC
contact Bosch for details
°C
Preset from factory.
Contact Bosch for details.
ON
dE turns back light off after 60 seconds from last
button pushed, ON turns backlight on
permanently.
Runs secondary fan and primary fan when P9 is
selected by depressing the "P" - button
SC
This menu is only available when cascade mode is
selected CC.
Contact Bosch Water Heating for details.
Cn
Diagnostic menu
E
Entry/Exit into sub-modes
0d
Heat exchanger water temperature
1d
Inlet water temperature (°F)
2d
Outlet water temperature (°F)
3d
Water flow (gallons/min)
4d
Bypass control monitor (°F) [0d - 2d]
5d
Fan speed (Hz)
6d
Burner power (%)
7d
Maximum power (kW)
8d
Back flow temperature (°C)
9d
Exhaust temperature (°C)
1F
Most recent error/failure
2F
2nd most recent error
3F
3rd most recent error
4F
4th most recent error
5F
5th most recent error
6F
6th most recent error
7F
7th most recent error
8F
8th most recent error
Table 35 * Settings define from factory
Maintenance and service | 39
6 720 644 887 (2013/02)

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