IC70CX
Pag. 19 of 23
C19 Fourth relay configuration (
dEF - FAn – ALr - AUS - OnF- HEt)
C20 Not used
C21 Not used
C22 Not used
C23 Software release (only reading)
C24 Parameter table code (only reading)
C25 Serial address (0÷244)
C26 Kind of action of auxiliary regulation; CL = cooling, HT = heating
C27 Set point auxiliary regulation Auxiliary regulation set point
C28 Differential auxiliary regulation Auxiliary regulation differential
C29 Auxiliary regulation stopped during defrost; allows to stop auxiliary regulation during defrost
C30 Auxiliary regulation probe selection
C31 Thermostat probe visualization: it allows to read thermostat probe
C32 Evaporator probe visualization: it allows to read evaporator probe
C33 Third probe visualization: it allows to read third probe
C34 Fourth probe visualization: it allows to read fourth probe
DEFROST
d01 Defrost type: EL = electrical heater; in = hot gas.
d02 End defrost temperature: (-50÷50 °C/ -58÷122°F) sets the end defrost temperature.
d03 Interval between defrost cycles: (0÷120 h) Determines the time interval between the beginning of two defrost cycles.
d04 Resolution for d03: Sets the resolution for the d03 parameter (Hur = hours, Min = minutes).
d05 Maximum length for defrost: (0÷255min) If C08=n (not evaporator probe: timed defrost) it sets the defrost duration, if
C08=y (defrost end based on temperature) it sets the maximum length for defrost.
d06
Start defrost delay: (0÷59min) This is useful when different defrost start times are necessary to avoid overloading the
plant.
d07 Drip time: (0
120 min) time interval between reaching defrost termination temperature and the restoring of the control’s
normal operation. This time allows the evaporator to eliminate water drops that might have formed due to defrost.
d08 Temperature displayed during defrost: (rt = real temperature; it = temperature at defrost start; SEt = set point; dEF =
“dEF” label)
FAN
F01 Fans operating mode:
C-n= runs with the compressor, OFF during defrost;
o-n = continuous mode, OFF during defrost;
C-Y = runs with the compressor, ON during defrost;
o-Y = continuous mode, ON during defrost
F02 Fans stop temperature: (-50÷50°C/122°F) evaporator temperature above which fans are OFF.
F03 Fans delay after defrost: (0÷255min) Interval between end of defrost and evaporator fans start.
F04 Fan ON time: (0÷15 min) with F01 = C_n or C_y (fan activated in parallel with compressor), it sets the evaporator fan
ON cycling time when the compressor is off. With F05 =0 and F06
≠ 0 the fan are always off, with F05=0 and F06 =0
the fan are always off.
F05 Fan OFF time: (0÷15 min) with F01 = C_n or C_y (fan activated in parallel with compressor), it sets the evaporator fan
off cycling time when the compressor is off. With F05 =0 and F06
≠ 0 the fan are always off, with F
05=0 and F06 =0 the
fan are always off.
TEMPERATURE ALARMS
A01 Temperature alarms configuration
:
(Ab; rE)
Ab= absolute temperature: alarm temperature is given by the ALL or ALU values
rE = temperature alarms are referred to the set point.
A02 Probe selection for boiler temperature alarm: P1 = Probe 1; P2 = Probe 2; P3 = Probe 3; P4 = Fourth probe
A03 Maximum temperature alarm: (SET÷110°C; SET÷230°F) when this temperature is reached the alarm is enabled,
after the “A06” delay time.
A04 Minimum temperature alarm: (-50.0 ÷ SET°C; -58÷230°F) when this temperature is reached the alarm is enabled,
after the “ALd” delay time.
A05 Differential for temperature alarm/fan recovery: (0,1÷25,5°C; 1÷45°F) Intervention differential for recovery of
temperature alarm. It’s also used for the restart of the fan when the F02 temperature is reached.
A06 Temperature alarm delay: (0÷255 min) time interval between the detection of an alarm condition and alarm signalling.
A07 Compressor and heater off with boiler low temperature alarm:
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