Setting the Time to service notification
Fumis ALPHA controller enables to set up the notification for regular maintenance. The
Time to service
shows when
the regular service should be performed. It counts down in hours, and when this counter reaches zero, the Service icon
starts blinking. Regardless, the combustion device still continues to operate.
To set up the notification define the service time period with the parameter PAR94. This value is used in connection
with the
Service time
counter. With the PAR94 you define the service time period in days, but the
Service time
counter
counts the hours. This means that if you set the PAR94=1 (day), the
Service time
counter displays 24 (hours).
Maximum value of the PAR94 is 255, which means 6120 hours (255x24=6120). The display can show up to 999 hours,
value over 999 hours is displayed as Hi.
When the
Service time
counter reaches the value, set with the parameter, the notification is triggered. When regular
maintenance is performed (by authorized personnel only), the
Service time
counter must be reset. For instructions
refer to chapter
Viewing service counters
on page
22
.
Replacing the battery
Fumis ALPHA controller switches to on-board battery during power failure or when disconnected from the mains
power supply. The battery powers the internal clock and maintains the internal microprocessor memory.
When the battery is empty, the controller operates normally while connected to the main power supply. During power
supply failure, the internal clock stops and the operation phase is not stored in memory. After power supply returns,
the clock is reset, and the controller stays in
OFF
phase (Stove mode) or in
Fire up
phase (Boiler mode).
To replace the battery:
1.
Disconnect the mains power supply.
2.
Locate the battery on the PCB (see Figure 5)
3.
With ISOLATED tweezers or similar tool remove the old battery from the holder. Take care not
to bend the battery holder contacts.
4.
Check the polarity orientation and insert the new battery (refer to
Figure 5
)
5.
Reconnect the mains power supply.
+
-
Figure 5: Replacing the battery
