Selecting Menu 3; Selecting The Test Menu; Setting The Boiler To Maximum Output; Flue Integrity - Bosch Condens 2000F30 Regular boiler Installation, Commissioning And Servicing Instruction Manual

38 | Servicing and spares

10.2.5 Selecting menu 3

To display a service function in this menu:
Press the button and the ok button simultaneously until in the text
line Menu 1 is displayed.
Select Menu 3 with the + button.
Press the button and the ok button simultaneously until in the text
line the first service function is displayed 3.xx.
Press the + or - buttons to scroll the through menu area.
Service function
3.1A Upper limit of
maximum heating
power for 2.1A
3.1b Upper limit of the
maximum power (hot
water) for 2.1b
3.2b Upper limit of the flow
temperature
3.3b Minimum nominal
heat output (heating
and hot water)
Table 21 Menu 3

10.2.6 Selecting the Test menu

To display a service function in this menu:
Press the button and the ok button simultaneously until in the text
line Menu 1 is displayed.
Select the Test menu with the + button.
Press the ok button to confirm your selection.
Press the + or - buttons to scroll through the menu area.
Service functions
t01 Igniter test
Checking the igniter
spark
t02 Fan test
Checking the fan
operation
Table 22 Test menu
6 720 ... ... (YYYY/MM)
Possible settings
This service feature allows the
service technician, the setting for the
maximum heat output (service
function 2.1A) limit. Default setting
is the maximum rated output.
This service feature allows the
service technician the setting for the
maximum heating (hot water, service
function 2.1b) limit. Default setting
is the maximum heat output hot
water.
The maximum flow temperature can
be adjusted between 30 °C and
82 °C. It limits the setting at the
operating level Default:. 82 °C
The heating and hot water output can
be set as a percentage to any value
between the minimum and maximum
rated output. Default setting is the
minimum nominal heat output
(heating and hot water), it is
depending on the device.
Possible settings
The igniter will spark without gas
supply for a maximum of 2 minutes,
otherwise the ignition transformer
will be damaged. The spark will be
audible if the igniter is OK.
Possible settings are:
0 = off
1 = on - default is 0
The fan will run without gas supply or
ignition.
Possible settings are:
0 = off
1 = on - default is 0
Service functions
t03 Pump test.
Checking the pump
operation.
(internal and external
pumps)
t04 Checking the internal
3-way diverter valve
Table 22 Test menu

10.2.7 Setting the boiler to maximum output

4. Press the / button together with the
"Chimney sweep mode", the display shows the current flow
temperature and flashes the percentage heat output in the
alphanumeric display. The burner symbol will be shown in the
display.
Press the + or - buttons until the required percentage output is
displayed. Set the output to 100% initially.
Fig. 49 Operating the boiler
5. If the boiler fails to light, press the reset button until the reset line of
text displays. The device goes back into operation and the flow
temperature is displayed.
6. Press the button at any time to return to normal operation.
The boiler will run at maximum output for 30 minutes
before switching back to normal operation.
10.3

Flue integrity

The integrity of the flue system and performance of the boiler can be
checked via the flue turret sample points.
1
2
Fig. 50 Flue turret
[1] Flue gas sample point
[2] Air inlet sample point
With the boiler case on and the boiler running at maximum output (refer
to section "Setting the boiler to maximum").
▶ Insert the analyser probe into the air intake sample point [2].
▶ Ensure that the probe reaches the centre of the air intake, adjust the
cone on the probe so that it seals the sample point and correctly
positions the end of the probe.
▶ Allow the readings to stabilise and check that:
– O is equal to, or greater than 20.6%.
2
Possible settings
The pump will run for a maximum of
45 seconds. If the pump is OK then
the pump will be heard running.
Possible settings are:
0 = pump off
1 = pump on - default is 0
Possible settings are:
0 = off
1 = on - DHW - default is 0
button to enter the
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Product Name