Nibe VVM 300 - Alarm and Error Handling

10 NIBE VVM 300
User guide
Effektvakt 100
230 Va c
L N
1234 67
8
10 12 13 14
FIGHTER
Huvudsäkring
3 st strömkännare
30.1 30.2
A
B
C
44
4
L1
L2
L3
Dealing with malfunctions
LOW PRESSURE
This information is shown when the low pressure switch
in FIGHTER 2020 has tripped. This may be due to a frozen
evaporator or reduced air flow through the evaporator.
Indicated as 05 in channel S1 on FIGHTER 2020.
The information disappears when the pressostat is reset
and FIGHTER 2020 has been restarted. VVM 300 switches
to reduced boiler mode*.
SENSOR ALARM
This information is shown when a temperature sensor in
FIGHTER 2020 stops working. This may be due to an open-
circuit or incorrect installation. Indicated as 08 in channel
S1 on FIGHTER 2020.
The information disappears when the cause is remedied
and FIGHTER 2020 has been restarted. VVM 300 switches
to reduced boiler mode*.
HIGH PRESSURE
This information is shown when the high pressure switch
in FIGHTER 2020 has tripped. This may be due to too low
charge flow or air in the system. Indicated as 06 in channel
S1 on FIGHTER 2020.
The information disappears when the pressostat is reset
and FIGHTER 2020 has been restarted. VVM 300 switches
to reduced boiler mode*.
MOTOR SECURITY
This information is shown when the motor protection
in FIGHTER 2020 has tripped. The alarm may be due to
dropped phase because of tripped fuses or incorrectly
set motor protection. Indicated as 07 in channel S1 on
FIGHTER 2020.
The information disappears when the fault is remedied
and FIGHTER 2020 has been restarted. VVM 300 switches
to reduced boiler mode*.
In the event of an alarm the relay contact closes
* Means that the compressor is blocked and the flow temperature is forced to the set minimum temperature in (menu 2.3).
Press the operating mode button twice to shift to normal boiler mode.
Alarm/alarm outputs
Other information can also be shown on the display be-
sides the standard information. This applies with malfunc-
tions or for calls to take action. This type of information is
only shown in menu 1.0 (The display always automatically
returns to menu 1.0 approximately 30 minutes after the
last button was pressed). This information alternates with
menu 1.0’s standard information. At the same time the
display’s background lighting flashes.
The following information can be shown:
Supply
Max 2A/250 VAC
Alarm output
LOW FLUID TEMP.
1.0
HIGH PRESSURE
1.0
MOTOR SECURITY
1.0
SENSOR ALARM
1.0