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”
"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
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 Default
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
4
ALU
MAXIMUM temperature alarm
8
ALL
Minimum temperature alarm
2
ot
Thermostat probe calibration
6
P2P
Evaporator probe presence
n
Adr Address
series
(unused)
1
P2r
Access parameter list ( read only)
1
