41
OPERATION
5.3.9 Error Screen
For each boiler, the Error screen shows the list of the last 40 errors
occurred on its own modules.
The errors are listed in chronological order, under two categories:
Blocking errors (auto-reset) and Locking errors (manual reset).
Fig. 52
Error Screen
5.3.10 Service Screen
The Service screen shows the main parameters of the Service Re-
minder function.
Fig. 53
Service Screen
The Service Reminder will remind the owner/user of the appli-
ance to service the appliance at a specied Service_Interval (fac-
tory setting).
When service is not done within the specied time, a service re-
minder will be shown on the screen, alternating with the normal
status display.
The Service_Interval can be set as the number of burn hours or
the number of operational (appliance is powered) hours.
This can be done by setting the Service_Hour_Counter (factory) pa-
rameter.
When the Service Reminder is active, the time before service is
actually done is logged by the 900PB (in hours). This time is called
the Service Overdue time. With this log the factory can read back
how long service was overdue on the system/appliance which can
be useful when handling warranty claims.
A maximum of 15 Service moments can be logged by the 900PB,
when the log is full it will overwrite the oldest log entry.
Each time the Service Reminder is being reset, a new service mo-
ment is counted and the Service Overdue counter will be stored in
the log/history.
5.3.11 Module Test Screen
This screen allows to carry out the same operations shown on
paragraph “Test Screen” for each cascade module.
Fig. 54
Module Test Screen
5.4 Display board replacement
System congurations must be performed only by the Technical
Assistance Service or by personnel authorized by
R.
Fig. 55
Display board
When replacing the front control panel, an initial screen with the
logo is displayed on the next reboot
R.
The system performs a consistency check between the congura-
tion data saved on the motherboard and those saved in the user
interface; therefore, when replacing the control interface, the sys-
tem can detect an inconsistency between the saved data. Set the
Par. 97 and the Par. 98.
Proceed as follows:
− On the home screen of the control panel, press the ● key
− Select “Settings” with the ▲ / ▼ keys and press the ● key
− Select “Appliace conguration” with the ▲ / ▼ keys and
press the ● key
“
”
“
General Settings”
“Boiler Settings”
“Appliance Configuration”
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