Vauconsant COOLBOX, Instructions Of Use And Maintenance, Page: 5 / 6

5
3.9 To enter in parameters list Pr2
To reach the parameters present in "Pr2" (parameters
accessible
to the technicians), please contact
, which will deliver you the secret code
making it possible to reach these parameters.
4. ALARM SIGNALS
Message
Cause Output
"P1"
Thermostat probe
failure
Alarm output ON; Compressor
output according to parameters
“COn” and “COF”
"P2"
Evaporator probe
failure Alarm output ON; Other outputs
unchanged
"HA"
Maximum
temperature alarm Alarm output ON; Other outputs
unchanged
"LA"
Minimum
temperature alarm Alarm output ON; Other outputs
unchanged
"EE"
Data or memory
failure Alarm output ON; Other outputs
unchanged
"dA" Door switch alarm
Alarm output ON; Other outputs
unchanged
"EAL" External alarm
Alarm output ON; Other outputs
unchanged
"BAL"
Serious external
alarm Alarm output ON; Other outputs
OFF
"PAL"
Pressure switch
alarm Alarm output ON; Other outputs
OFF
The alarm message is displayed until the alarm condition is
recovery.
All the alarm messages are showed alternating with the room
temperature except for the “P1” which is flashing. To reset the
“EE” alarm and restart the normal functioning press any key,
the “
rSt ” message is displayed for about 3s.
4.1 EE alarm
The instruments are provided with an internal check for the
data integrity. Alarm “EE” flashes when a failure in the
memory data occurs. In such cases the alarm output is
enabled.
4.2 Alarm recovery
Probe alarms “ P1 ” (probe1 faulty), “ P2 ” ; they automatically
stop 10s after the probe restarts normal operation. Check
connections before replacing the probe.
Temperature alarms “
HA ” and “ LA ” automatically stop as soon
as the thermostat temperature returns to normal values or
when the defrost starts.
5. PARAMETERS PROGRAMS IN FACTORY
Parameter Name Value
Set Set point 2
Hy Differential 1
AC Anti-short cycle delay 1
rES Resolution (integer/decimal point) De
tdF Defrost type rE
dtE Defrost termination temperature 1
IdF Interval between defrost cycles 1
MdF (Maximum) length for defrost 7
ALU MAXIMUM temperature alarm 8
ALL Minimum temperature alarm 2
ot Thermostat probe calibration 4
P2P Evaporator probe presence n
Adr Address series (unused) 1
P2r
Access parameter list ( read only)