Overview Of The Service Functions; First Service Level (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 Series Installation And Service Instructions For Contractors

Heatronic boiler control settings
11.2

Overview of the service functions

11.2.1 First service level (press and hold the service button
until 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
1.F Pump mode
2.A Heating circuit pump lockout time
2.b Maximum supply temperature
2.C Purging 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
5.E Functionality of black plug in boiler
junction box
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
Table 26 Service functions, 1st level
56
11.2.2 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
Page
Display
56
8.A Software version
57
8.b Code plug number
57
8.C GFA Gas burner control status
57
8.d GFA fault
57
8.E Restore boiler to factory settings
57
8.F Permanent ignition
57
9.A Constant mode
57
9.b Current fan speed
58
9.C Current boiler output
58
9.d Set fan start speed
58
9.E Turbine signal delay
58
9.F Heating zone pump post purge
58
A.b Display DHW temperature
58
A.C Display DHW tank temperature
59
b.F Solar DHW backup heating delay
59
C.d Display current heat demand
59
59
a. GFA: Gas burner control unit
59
Table 27 Service functions, 2nd level
59
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11.3

Description of the service functions

59

11.3.1 First service level

59
Service function 1.A: Maximum space heating output
60
Some gas supply companies offer a performance-dependent basic
60 price.
The output can be limited in percent between the minimum and
60
maximum nominal output to suit the specific heat demand.
60
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Even if the heating output has been limited, the maximum nominal
60
output is still available for DHW generation.
60
▶ Select service function 1.A.
60
▶ Select heat output in MBH (kW) and determine associated setting in
60
percent (%).
60
▶ Enter the setting ( Chapter 10.1).
60
▶ Save the setting ( Chapter 10.1).
▶ Record the set heat output in the commissioning log ( page 78).
▶ Exit the service functions.
The display returns to the supply temperature.
The factory setting is the maximum nominal output: 100 (100 %).
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Greenstar – 6721822579 (2021/01)