KKT cBoxX 30 - Troubleshooting; Cboxx

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I.III. Troubleshooting
Error
code
cBoxX display
Message description
Cause of the message
Troubleshooting
111
HP warning
Condensation pressure has
exceeded the warning limit
Condensation pressure
threatens to rise up to the
high-pressure stop limit;
one compressor is
switched off (if two or
more compressors are
present)
Clean the condenser
and filter. Check the
function of the fan.
Check the cooling
water circuit. Install the
cover panels.
121
LP warning
Evaporation pressure has
fallen below the warning
limit
Evaporation pressure
threatens to fall to the low-
pressure stop limit; one
compressor is switched off
(if two or more
compressors are present)
Check liquid flow.
Check the function of
the expansion valve.
Check the refrigerant
level.
151
HP STOP
Condensation pressure is
outside the allowable range.
Unable to remove the
waste heat of the
refrigeration circuit.
Clean the condenser
and filter. Check the
function of the fan.
Check the cooling
water circuit. Install the
cover panels. Press the
Reset button and
acknowledge at the
display.
161
LP STOP
Low pressure sensor has
tripped. Pressure has fallen
below the minimum
allowable pressure on the
intake side of the
compressor (low pressure
side).
Liquid flow through the
evaporator is too low.
Refrigerant loss. Faulty
function of the expansion
valve. Faulty function of
the LP sensor.
Check liquid flow.
Check the function of
the expansion valve.
Check the refrigerant
level.
162
LP STOP 3times
Low pressure sensor has
tripped. Pressure has fallen
below the minimum
allowable pressure on the
intake side of the
compressor (low pressure
side).
Liquid flow through the
evaporator is too low.
Refrigerant loss. Faulty
function of the expansion
valve. Faulty function of
the LP sensor.
Check liquid flow.
Check the function of
the expansion valve.
Check the refrigerant
level.
171
Superheating
The superheating value has
fallen below the minimum
limit. vBoxX min; cBoxX min
& max
Superheating too low
Reset takes place
automatically
301
Outlet temp. max warn.
Outlet temperature of the
liquid circuit is approaching
the upper limit
Thermal overload,
No cold production
(refrigeration).
Check refrigerating
capacity, check the
function of the
refrigeration circuit
312
Min tank level warning
Level in the tank is
approaching the minimum
limit.
Level in the tank is too
low, level sensor in the
tank is defective.
Fill the tank, check the
function of the sensor
in the tank
313
SV timelimit tank refill
The solenoid valve of the
tank refill does not close
within the specified time
The freshwater supply is
interrupted.
Check the function of
the solenoid valve for
freshwater supply,
open shut-off valves
integrated in the supply
pipe. Check supply
pipe for leakage