Buderus 500 - 28/C Servicing Manual page 12

3 Operation
box 12 Normal Operation menu
[24]
Current CH flow temperature, in °C. See also box 20.
step 1
D
Keep the -button pressed.
step 2
[00]
current DHW flow rate, in litres per minute
step 3
Continue with Normal Operation menu ?
step 4
D
Release the -button.
step 5
C
Keep the -button pressed.
step 6
[0h]
Operating code. See also box 20
step 7
In this case: The boiler is ready for operation. No current heat requirement.
box 13 Service Mode menu (no hot water is available during service-mode operation)
[24]
Current CH flow temperature, in °C. See also box 20.
step 1
Activate service mode?
step 2
A
Press the -button once.
step 3
,24]
As soon as the spanner symbol on the left-hand side of the display and the flame appear, the boiler will
step 4
run for 30 minutes in service mode. The maximum CH flow temperature (as configured in the "Settings" menu)
applies in this case.
C
Briefly press the
step 5
Partial-load service mode
step 6
Adjust the gas/air ratio as required. See box 233 and box 143.
Exit partial-load service mode?
step 7
A
step 8 Press the -button once.
C
Briefly press the
step 9
step 10 Full-load service mode
accordingly box 230.
step 11 Exit full-load service mode?
A
step 12 Press the -button once, or wait for service mode to expire (after 30 minutes).
step 13 Service mode is deactivated.
box 14 Settings menu
[24]
Current CH flow temperature, in °C. See also box 17.
step 1
Open "Settings" menu?
step 2
E
Press the -button once.
step 3
Is boiler a combination boiler with warm start ?
step 4
[pr# H I
( /
step 5
water mode, or adjust it as required. See also box 18.
Adjust configured hot water mode ?
step 6
We reserve the right to make technical modifications
12
-button.
[lo]
is activated. Check the gas/air ratio and ionisation current.
-button.
,hi]
is activated. Check the working gas input pressure, or analyse the exhaust gas
) Configured hot water mode. As soon as
Servicing manual Gas condensing boiler Buderus 500-24/S, 500-24/C and 500-28/C • Issued 02/2006
[pr#
is displayed, you can verify the current hot
Buderus Ltd. • http://www.buderus-domestic.co.uk
→
Yes: step 6
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No: step 5
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step 1
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step 4
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Yes: step 3
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No: step 1
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Yes: step 8
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No: step 6
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Yes: step 12
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No: step 10
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step 1
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Yes: step 3
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No: step 1
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step 4
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Yes: step 5
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No: step 9
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Yes: step 7
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No: step 8