Zanotti uniblock SB-SP O Instructions page 11

The selection of the after-reset defrost option has priority over the compressor regulation and over
the continous cycle activation.
d5
: DEFROST DELAY AFTER RESET OR EXTERNAL TRIGGER
It defines the time interval between the reset and the beginning of a defrost.
In case a digital trigger is used to start defrost, it defines the delay between the activation of
defrost and its effective start.
d6
: DISPLAY LOCK DURING DEFROST
It allows to lock the display to the last value measured before defrost start.
The display comes back to normal operation when the temperature reaches for the first time its
set-point or when the d8 alarm exclusion time finishes.
If the display is not locked, during defrost the device displays the message dF.
dd
: DRIPPING TIME
Compressor and fan are OFF for this time after a defrost cycle finishes.
If dd is not zero, the defrost stops when the device has turned the compressor OFF ( in case of a
heating gas defrost ) and the reverse cycle relay is turned OFF. If dd=0 the dripping phase is
skipped : after defrost only the reverse cycle relay is deactivated.
d8
: ALARMS EXCLUSION TIME AFTER DEFROST AND DOOR OPEN.
After defrost the temperature alarm is inhibited for the time defined by this parameter. This allows
the temperature to exit the alarm range during and after defrost.
It also defines the time to inhibit the temperature alarm after door is closed if the door switch is active.
d9
: FORCE DEFROST START
It allows to ignore the protection times for the compressor ( minimum ON, minimum OFF, interval
between two ONs) when the defrost is started.
d
: DEFROST PROBE MEASURE
It enables the display of the value measured by the defrost probe when this is connected.
dC
: TIME BASE
It allows to modify the time base used for the defrost interval ( dI) and the defrost duration (dP).
0 = dI in hours, dP in minutes
1 = dI in minutes,dP in seconds.
ALARMS
A0
: ALARM AND FAN DELTA
It represents the temperature hystheresys of the "regulator"of alarm and of the fan regulator.
AL
: MINIMUM RELATIVE SET
The low temperature alarm is activated when the temperature has values less than the minimum
Set relatively to the Set point.
If the parameter is 0 the minimum alarm is inhibited.
AH
: MAXIMUM RELATIVE SET
The high temperature alarm is activated when the temperature has values greater than the
maximum Set relatively to the Set point.
If the parameter is 0 the maximum alarm is inhibited.
Ad
: TEMPERATURE ALARM DELAY
The alarm of high and low temperatures is acknowledged with an Ad delay from the moment the
cause starts. This delay is active also at the reset of the device.
After defrost, door open/closed, continous cycle, the temperature alarm is immediately
acknowledged after the delay set by the defrost and the continous cycle.
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