Overview Of The Service Functions; Service-Level 1 (Press And Hold The Service Button Until It Lights Up); Second Service Level (At First Service Level, Service Button Lights Up, Press Eco Button And Key Pad Lock Button Simultaneously Until 8.A Appears); Description Of The Service Functions - Bosch Greenstar combi 100 p Installation And Service Instructions For Contractors

40 | Heatronic boiler control settings
Restoring factory settings
In order to reset all values for the service levels 1 and 2 to the factory
setting:
▶ Press and hold the service button
The display shows a code such as 1.A (first service level). Press the
button and key pad lock button simultaneously until the code 8.A
appears (second service level).
▶ On the second service level, select the service function 8.E and value
00. The appliance restarts with the default settings.
10.2

Overview of the service functions

10.2.1 Service-level 1 (Press and hold the service button
it lights up)
Service function
Display
1.A Maximum space heating output
1.b Maximum DHW output
1.E Pump mode for space heating operation
a
1.F -
2.C Bleeding function
2.d Thermal disinfection
2.F Operating mode
3.A Automatic anti-cycle function
3.b Set anti-cycle time
3.C Switching differential (hysteresis)
3.d Minimum output (heating and DHW)
3.E Cycle time, keeping DHW hot
3.F Constant DHW period
4.b Maximum heat exchanger temperature
4.d
Audible fault warning tone
4.E Appliance type
4.F Condensate trap filling sequence
5.A Reset inspection interval
5.b Fan post purge time
a.
5.E -
5.F Set inspection interval
6.A Display the latest fault code
6.b Room temperature control, current voltage,
terminal 2
6.C Supply temperature required by outdoor reset
control
6.d Current DHW turbine flow rate
7.A Indicator lamp for burner operation / faults
7.b 3-way valve in center position
7.d Connecting an external supply or low-loss header
temperature sensor
7.E Building drying function
0.A Do not use this setting!
0.d Altitude adjustment
0.E Metric or US customary units
a. Service functions 1.F and 5.E are not used.
Table 22 Service functions, 1nd level
6720872361 (2017/04)
until it lights up.
until
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10.2.2 Second service level (at first service level, service button
lights up, press ECO button and key pad lock button
simultaneously until 8.A appears)
Service function
Display
8.A Software version
8.b Code plug number
8.C GFA Gas burner control status
8.d GFA fault
8.E Restore boiler to factory settings
8.F Permanent ignition
9.A
Constant mode
9.b Current fan speed
9.C Current boiler output
9.d Set fan start speed
9.E Turbine signal delay
9.F Heating zone pump post purge
A.b Display DHW temperature
A.C Display DHW tank temperature
b.F Solar DHW backup heating delay
C.d Display current heat demand
a. GFA: Gas burner control unit
Table 23 Service functions, 2nd level
10.3

Description of the service functions

10.3.1 First service level

Service function 1.A: Maximum space heating output
Some gas supply companies offer a performance-dependent basic
price.
The output can be limited in percent between the minimum and
maximum nominal output to suit the specific heat demand.
Even if the heating output has been limited, the maximum nominal
output is still available for DHW generation.
▶ Select service function 1.A.
▶ Select heat output in MBH (kW) and determine associated setting in
percent (%).
▶ Enter the setting ( Chapter 10.1).
▶ Save the setting ( Chapter 10.1).
▶ Record the set heat output in the commissioning log ( page 60).
▶ Exit the service functions.
The display returns to the supply temperature.
The factory setting is the maximum nominal output: U0 (100 %).
Service function 1.b: Maximum DHW output
The hot water output can be adjusted between the minimum and
maximum DHW outputs to suit the heat transfer capacity of the DHW
tank coil.
▶ Select service function 1.b.
▶ Select the DHW output in MBH (kW) and determine the associated
setting in percent (%).
▶ Enter the setting ( 10.1).
▶ Save the setting ( 10.1).
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Greenstar combi 100 p / 151 p