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Heatronic boiler control settings
• 02: External heating zone pump in heating circuit without 3-way valve
controlled by FW 200.
• 03: External heating zone pump in heating circuit without mixer
controlled by Heatronic running in parallel with boiler pump in central
heating mode
Default setting is 03.
Service function 5.F: Set inspection interval
This service function allows setting the number of months after which
the 'service due' reminder "In" appears on the display alternating with
the supply temperature.
The number of months can be set from 00 - 72 (0 to 72 months).
Default setting is 00 (disabled).
If U0 appears on the display, the function was already set via the FW200
control.
Service function 6.A: Display the latest fault code
Use this service function to display the most recent fault code.
Service function 6.b: Room temperature control, current voltage
terminal 2
The current voltage of the analog control at terminal 2 is displayed.
Possible displays are:
• 00 - 24: 0 V to 24 V in increments of 1 V
Service function 6.C: Supply temperature required by weather
compensation control
This service function allows displaying the current target supply
temperature set by the weather compensation control.
Service function 6.d: Current DHW turbine flow rate (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.
The current flow rate of the DHW turbine is displayed.
Service function 0.E is set to 00 (metric units):
• 0.0. - 99.9.: 0.0 to 99 l/min in increments of 0.1 l/min
Service function 0.E is set to 01 (US-customary units):
• 0.0. - 99.9.: 0.0 to 99 gpm in increments of 0.1 gpm
Service function 7.A: Indicator lamp for burner operation/faults
With this service function you can activate and deactivate the indicator
lamp for burner operation (continuously illuminated) and faults
(flashing).
The following settings are possible:
• 00: Off
• 01: On (burner operation) and flashing (fault present)
Default setting is 00.
60
Service function 7.b: 3-way valve in center position
After the value 01 has been saved, the 3-way valve moves to the center
position. This allows draining the system completely and removing the
motor easily.
When you exit this service function, the appliance returns to setting 00.
Service function 7.d: Connecting an external supply or low-loss
header temperature sensor
Presence of an external supply or low loss header temperature sensor is
automatically detected by default; you do not need to change any
settings.
If a sensor is disconnected, change the setting back to the default setting
00.
The following settings are available:
• 00: Once-only automatic detection of a sensor
• 01: External supply temperature sensor connected to Heatronic.
• 02: External supply temperature sensor connected to IPM2.
Default setting is 00.
Service function 7.E: Building drying function
This service function allows you to start and stop the building drying
function.
Never confuse the appliance building drying function with the slab
drying function of the outdoor reset control FW200.
When the building drying function is on, you cannot adjust the appliance
gas settings.
The following settings are available:
• 00: Off
• 01: Heating operation only in accordance with the appliance or
control setting, i.e. all other heat demands are blocked.
Default setting is 00.
Service function 0.A: Do not use this setting!
Default setting is 00
Service function 0.d: Altitude adjustment
Input and output rates are reduced at higher altitudes due to thin air with
reduced oxygen levels.
KBR42-3A... and KWB42-3A... appliances are derated at 3 % per 1000
feet (305 m).
KBR16-3A..., KBR21-3A..., KBR28-3A..., KBR35-3A..., KWB28-3A...
and KWB35-3A... appliances offer altitude adjustment which
compensates for the effects of thin air, and are therefore NOT derated up
to 6000 feet (1829 m). Above 6000 feet (1829 m) a rate of 3 % per
1000 feet (305 m) applies.
This service function is used to adjust the fan speed for high altitude
operation.
Greenstar FS/Combi FS – 6 720 810 590 (2020/04)
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