10.1.3 Lifetime of safety-relevant components
Safety-relevant components (e.g. gas valves) have a limited lifetime that
mainly depends on the operating years and the operating cycles. The
remaining lifetime of individual safety-relevant components can be
determined as part of maintenance work carried out by an approved
installer. If the lifetime Potterton in accordance with the following table is
exceeded, recommends replacing the relevant components.
Safety-relevant compo
nents
Design-related rated lifetime
Operating cycles
Years
Gas pressure monitor
50,000
10
Air pressure monitor
250,000
10
Boiler control
250,000
10
Gas valve
EC five 125 kW - 300
kW
500,000
10
Important
The number of operating cycles can be read under
Start counter
1st stage
(prog. no. 8331) in the menu item
Diagnostics heat
generation
.
10.2 Maintenance messages
10.2.1 Maintenance message
If the maintenance sign appears in the display a maintenance message
exists or the system is in special operation.
1. Press the information key.
Further information is displayed.
See
Maintenance code table
Important
The maintenance message has not been activated by the
setting in the factory.
10.2.2 Maintenance code table
Servicing code
Maintenance description
1:Burner hours run
Burner operating hours exceeded
2:Number of burner
starts
Burner starts exceeded
3:Maintenance interval Maintenance interval exceeded
10.2.3 Operating phases of the Control Centre LMS
The operating phases are displayed after the information key has been
pressed.
R
A-0
0
0
0
0
1
9
10 Maintenance
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