Install Instructions

62 | Heatronic boiler control settings
Greenstar6 720 806 992 (2013/09)
Service function 4.F: Condensate trap filling sequence
The trap filling sequence ensures that the condensate trap is filled after
initial installation or after a longer downtime of the appliance.
The trap filling sequence is activated if:
• The appliance is switched OFF using the ON/OFF switch
• The burner has not been in use for at least 28 days
• You are switching between summer and winter mode
The next time there is a demand for heat in central heating or hot water
mode, the appliance is held at low output for 15 minutes. The trap filling
sequence remains active until the appliance has completed 15 minutes
of operation at low output. The display shows in alternation with the
supply temperature.
The following settings are available:
• 00: Condensate trap filling sequence is off.
• 01: Trap filling program at the lowest output.
• 02: Trap filling sequence at set minimum output.
Default setting is 01.
Service function 5.A: Reset inspection interval
This function enables resetting the indication on the display after
completing inspection/servicing of the appliance.
Default setting 00.
Service function 5.b: Fan post purge time
This service function allows setting the time the fan purges after the
burner is shut off.
The post purge time can be set from 01 to 18 (10 - 180 seconds).
Default setting is 03 (30 seconds).
Service function 5.E: Functionality of black plug in boiler junction
box
With this service function you can set the functionality of the black plug
in the boiler junction box ( page 49).
The following settings are possible:
• 00: Off - black connector in junction box is disabled (120VAC output
deactivated).
• 01: DHW recirculation pump enabled - see FW200 instructions on
how to set a recirculation pump program.
• 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 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).
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 outdoor reset
control
This service function allows displaying the current target supply
temperature set by the outdoor reset control.
Service function 6.d: Current DHW turbine flow rate (only combi
boiler ZWB..-3A)
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.
DANGER: Risk of flue gas poisoning!
If the condensate trap is not filled, flue gas may escape
from the dry trap.
▶ Only deactivate the trap filling sequence for servicing
purposes.
▶ When servicing is complete, reactivate the trap filling
function.
If U0 appears on the display, the function was already set
via the FW200 control.
NOTICE: System damage or boiler malfunction!
▶ Never change the setting of this service function on
heating boiler ZBR..-3A appliances.