Buderus 500 - 24/C, Servicing Manual

Page: 12 / 80

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