thermital ACQUAHOME 25 B, Руководство пользователя

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17
ENGLISH
SYSTEM ERRORS AND ALARMS
Alarm Description
AL1
This message on the three digit display indicates an active burner lockout alarm. The indicator shows steady
light.
AL2
This message on the three digit display indicates an active safety temperature alarm (safety thermostat
tripped). The indicator shows steady light.
AL6
This message on the three digit display indicates a malfunction (short circuit) of the storage cylinder sensor.
The indicator shows steady light.If no storage cylinder sensor is detected, the storage cylinder is assumed
to be disabled; for this reason not alarm is generated. If you try to view the value on the display, only “- - -”
appears.
AL7
This alarm on the three digit display indicates a boiler sensor malfunction (sensor failure or short circuit).The
indicator shows steady light.
SEr
Service threshold near warning
When the burner reaches 90% of the operating hours set in boiler parameter P7 (see Programming
Parameters), the three figure display reads out the message “SEr” for about three seconds every time the
burner starts (unless the display is in low consumption mode).
Service threshold passed warning
If the burner’s operating hours reach or exceed the value set in boiler parameter P7 (see Programming
Parameters), the indicator flashes to show that the burner requires service. The three figure display reads
out the message “SEr” for about three seconds every time the burner starts (unless the display is in low
consumption mode).
Displaying the hours left before service is needed
Press the and keys simultaneously to read out on the 3 figure display how many hours of operation are left
before the service threshold is reached (max 999).