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; 11.3.1 First Service Level - Bosch KBR16-3 Installation And Service Instructions Manual

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
Display
8.A Software version
8.b Code plug number
8.C GFA Gas burner control status
8.d GFA Gas burner control 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
Table 20 Service functions, 2nd level
11.3

Description of the service functions

11.3.1 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 ( 11.1).
▶ Save the setting ( 11.1).
▶ Record the set heat output in the commissioning log ( page 78).
▶ Exit the service functions.
The display returns to the supply temperature.
Default setting is the maximum nominal output: 100 (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 ( 11.1).
▶ Save the setting ( 11.1).
▶ Record the set DHW output in the commissioning log ( page 78).
Greenstar FS
▶ Exit the service functions.
The display returns to the supply temperature.
Default setting is the maximum nominal output: 100 (100 %).
Service function 1.E: Pump mode for space heating operation
Page
If an outdoor temperature sensor for an weather
60
compensation control is connected, pump control mode
61
04 is automatically set.
61
• Pump control mode 00 (automatic mode): The BUS control
61
controls the central heating pump.
61
• Pump control mode 01: For heating systems without control.
61
The supply temperature controls the central heating pump. When
61
there is a demand for heat, the central heating pump and the burner
start up.
61
• Pump control mode 02: Do not use.
61
• Pump control mode 03: The central heating pump runs continuously
61
(exceptions: See heating control operating instructions).
61
• Pump control mode 04: Intelligent control of central heating pump
61
in heating systems with weather compensation control. The heating
61
zone pump is only switched on when needed.
61
Default setting is 00.
61
Service function 1. F: Pump mode (only heating boiler KBR..-3A)
61
NOTICE: System damage or boiler malfunction!
▶ Never change the setting of this service function on
Based on this setting, the pump connected to the Heatronic or 3-way
valve are controlled according to the configuration of the heating
system.
The following settings are possible:
• Pump mode 00: The appliance is used only as central heating boiler.
• Pump mode 01: A 3-way valve for DHW tank loading is connected in
boiler circuit before low loss header (see also service function 2.A).
• Pump mode 02: Do not use this setting!
• Pump mode 03: A DHW tank pump is connected on the system side
after the low loss header.
In DHW mode, DHW tank loading pump runs.
In space heating mode, DHW tank loading pump does not run.
Default setting is 03.
Service function 2.A: Heating circuit pump lockout time (only
heating boiler KBR..-3A)
NOTICE: System damage or boiler malfunction!
▶ Never change the setting of this service function on
This setting is only active if Service function
1. F: Pump mode is set to 01 (3-way valve).
During the runtime of an external 3-way valve actuator, the space
heating pump is blocked. Select the run time of the 3-way valve actuator
between 01 - 24 (10 - 240) seconds according to the manufacturer's
documentation.
Default setting is 24 (240 seconds).
Service function 2.b: Maximum supply temperature
The values of this service function displayed depend on the setting of the
service function 0.E:
Heatronic boiler control settings | 57
combi boiler KWB..-3A appliances.
combi boiler KWB..-3A appliances.
6 720 810 590 (2015/05)