KKT chillers nBoxX 1.5, Operating Instruction, Page: 28 / 48

28 / 48 83000902.Ka
Error
Error Error
Error Meaning
Meaning Meaning
Meaning Alarm
Alarm Alarm
Alarm
reset reset reset reset
Alarm relay
Alarm relay Alarm relay
Alarm relay
setting setting setting setting
Assigned
Assigned Assigned
Assigned
PLC output PLC output PLC output PLC output
Cause
Cause Cause
Cause Remedy
Remedy Remedy
Remedy
for cooling medium
pump has tripped.
Man > 3
F.07 Filter mat monitor-
ing (if activated,
optional) has
tripped.
Reset:
0-3=Auto
4-7=Man
2 7 Filter mat (option) soiled.
Condenser soiled.
Check whether filter mat is
soiled. If applicable, replace or
clean.
Check whether the condenser is
soiled and clean as necessary.
F.08 Low medium
temperature if a
tank heater (op-
tional) is installed
Man 5 8 The medium temperature
has dropped off (cold envi-
ronment!).
Check optional heater
F.09 Incorrect rotary
field or phase
missing.
Auto 5 8 Power supply incorrectly
connected.
Check and correct power supply.
F.10 Cooling capacity
monitoring.
Man 8 1 Cooling medium tempera-
ture too high. Consequen-
tially no cooling capacity.
Lack of refrigerant.
Switch off the unit and wait until
the temperature of the cooling
medium has reached normal
level.
Contact service.
F.11 Flow switch in the
cooling medium
circuit has tripped.
Auto 5 6 Insufficient cooling medium
flow through the evaporator
(plate heat exchanger).
Check whether a valve is shut in
the cooling medium circuit.
Check whether the cooling
medium pump is running (lis-
ten). If faulty, contact service.
Cooling medium pump
faulty.
Replace pump and contact
service as necessary.
Plate heat exchanger iced
up.
Contact service.
No or not enough cooling
medium in the tank.
Check cooling medium level and
top up as necessary.
F.13 Mains voltage too
low.
Auto
5 7
Fluctuations in mains
voltage
If temporary, no remedy is
required.
If error message persists, check
the power supply.
F.14 Mains voltage too
high.
Auto
5 7
Fluctuations in mains
voltage
If temporary, no remedy is
required.
If error message persists, check
the power supply.
F.15 Level switch (op-
tional) has tripped.
Man 5 2 Cooling medium level too
low.
Top up with cooling medium.
F.16 Condenser sensor
Inlet/outlet the
wrong way round.
Man 5 8 Condenser sensor the
wrong way round.
Check the arrangement of
sensors B3 and B4. See P+ID
(flow chart)
F.81 Temperature
sensor bro-
ken/short circuit in
temperature sen-
sor B1.
Auto
5 8
Temperature sensor faulty. Replace temperature sensor.
F.82 Temperature Auto
5 8
Temperature sensor faulty. Replace temperature sensor.