Heatronic boiler control settings
61
Greenstar FS/Combi FS – 6 720 810 590 (2020/04)
The following settings are available:
•
00:
Normal
•
01:
Medium
•
02:
High
Table 32 Altitude adjustment (service function 0.d)
Default setting
is
00
Service function 0.E: Metric or US customary units
With this service function you can set if Metric or US customary units are
displayed on the boiler.
The folllowing settings are available:
•
00:
°C, l/min (metric units)
•
01:
°F, gpm (US-customary units)
Default setting
is
00
11.3.2 Second service level
Service function 8.A: software version
The current software version is displayed.
Service function 8.b: Code plug
The last four digits of the code plug number are shown.
The code plug determines the appliance functions.
The code plug must be changed if the appliance has been converted from
natural gas to LPG (or vice versa).
Service function 8.C: GFA Gas burner control status
Internal parameter. If you are on the line with Bosch Technical Support
you may be asked for this number.
Service function 8.d: GFA Gas burner control unit fault
Internal parameter.
Service function 8.E: Restore to factory settings
This function allows resetting all parameters of the boiler including all
service functions to their factory settings.
▶ Press and hold the service button
!
until it illuminates. The display
shows a code such as 1.A (first service level).
▶ Press and hold
ECO
button and key pad lock button simultaneously
until a service function, e.g.
8.A
, is displayed (second service level).
▶ Repeatedly press the key pad lock button or
ECO
button until service
function
8.E
is displayed.
▶ Press and release the emissions test button
C
. The emissions test
button C lights up and the display shows
00
.
▶ Press and hold the emissions test button C until the display shows
.
All settings are reset and the appliance restarts with the default
settings.
▶ Reset altered service functions to the settings recorded in the
commissioning log (
page 75).
Service function 8.F: Permanent ignition
NOTICE:
Ignition transformer damage.
▶ Never leave this function on for longer than 2 minutes at a time.
This function enables permanent ignition without gas supply to test the
performance of all ignition related components.
The following settings are available:
•
00:
Off
•
01:
On
Default setting
is
00
Service function 9.A: Constant mode
This function sets one operating mode permanently (
Service function
2.F: Operating mode, page 55).
The following settings are available:
•
00:
Default mode: the appliance runs according to control settings.
•
01:
The appliance runs permanently at minimum output. The display
shows
9.A
.
•
02:
The appliance runs permanently at maximum output. The display
shows
9.A
.
Default setting
is
00
Service function 9.b: Current fan speed
This service function allows you to display the current fan speed in
revolutions per second (1/s).
Service function 9.C: Current fan output
This service function displays the current boiler output (in percent (%)).
Service function 9.d: Set fan start speed
At higher elevations the boiler fan may need to spin faster upon startup
to ensure reliable ignition every time. The start speed of the boiler fan
can be set from
45
to
77
revolutions per second (1/s).
Default setting
is
50
Service function 9.E: Turbine signal delay
(only combi boiler KWB..-3A)
NOTICE:
System damage or boiler malfunction!
▶ Never change the setting of this service function on heating boiler
KBR..-3A appliances.
This service function allows setting a time delay to prevent the appliance
starting up as a result of transient pressure spikes in the water supply.
Through spontaneous pressure change in the water supply, the flow
meter (turbine) can signal that DHW is being drawn and cause the burner
to come on unnecessarily.
The turbine signal delay can be set from
02
to
08
(0.5 seconds to 2
seconds) in increments of 0.25 seconds.
Default setting
is
04
(1 second)
Service function 9.F: heating zone pump post purge
This service function allows setting a pump post purge time after the end
of the heat demand from the external control.
The pump post purge time can be set from 01 to 10 (1 to 10 minutes).
Default setting
is
03
.
Setting Elevation above sea level
00
0 - 2,000ft (0 - 610m)
01
2,001 - 4,500ft (611 - 1,272m)
02
above 4,500ft (1,372m)