Nibe F1220 Service-Instruktion Seite 8

Alarm for the high pressure pressostat
If the high pressure pressostat is tripped during heating, the compressor stops and the alarm is
indicated in menu 1.0. If the high pressure pressostat is tripped during hot water charging, the
compressor stops and the start and stop temperatures for hot water charging drop by 2°C. This
is permitted to happen twice, on the third occasion an alarm is indicated. The high pressure
pressostat must be reset manually. When the start and stop temperatures for hot water
charging have dropped by 2°C or 4°C, this is indicated in menus 1.4 and 1.5 with the value on
the temperature drop in brackets.
Alarm for the low pressure pressostat
If the low pressure pressostat is tripped, the compressor stops and the alarm is indicated in
menu 1.0. The low pressure pressostat prevents the alarm for 1 minute after hot water
charging.
Alarm for low cooling medium temperature
If the cooling medium temperature out, is below the set value in menu 5.1 or the sensor for
"cooling medium out" is missing, the compressor stops and an alarm is indicated in menu 1.0.
If automatic reset of the KB alarm in menu 5.2 is selected "ON" and the cooling medium
temperature has increased 2°C above the seat alarm temperature, the alarm rests and the
operating mode returns to the operating mode before the alarm occurred.
Alarm for motor protection
If the motor protection is tripped, inputs J8:43-44 on the relay card do not receive signals of
230 V and an alarm is indicated in menu 1.0.
Alarm for level monitor/KB pressostat
If the level monitor or pressostat on the collector circuit is installed and "ON" is selected in
menu 9.2.11, an alarm is displayed in menu 1.0 if the contact is not closed.
Alarm for the outdoor sensor
When the outdoor sensor is faulty or not connected," Outdoor sensor alarm" is displayed in
menu 1.0 and the flow line temperature calculated from the outdoor temperature is set at 0°C.
Hot water generation and heating is not deactivated. The operating mode is changed to
"Winter" in the event of an outdoor sensor alarm.
Alarm for the flow line sensor
If the flow line sensor is faulty or not connected, "Alarm HM" is displayed in menu 1.0. The
operating mode is changed to "Winter" in the event of a flow line sensor alarm. Heating and
hot water production is blocked.
Alarm for flow line sensor 2
If flow line sensor 2 is faulty or not connected and shunt group 2 is selected in menu 9.2.5,
"Alarm HM2" is displayed in menu 1.0. The operating mode is changed to "Winter" in the
event of a flow line sensor 2 alarm. Hot water production is blocked.