USER GUIDE
System Diagnosis Guide
Parameter Description Factory
Value
P18 rst hard timed chill step duration 45
P19 compressor delay from device power on
(from restoration of power)
0
P20 minimum elapsed time period between
two consecutive compressor start-up
operations
0
P21 minimum compressor shut-down time 0
P22 defrost type
0 = electric (defrost on relay)
1 = hot gas (defrost compressor and
relay on)
2 = air (evaporator fan on)
2
P23 defrost end temperature (with reference
to the evaporator probe)
8
P24 maximum defrost duration 10
P25 defrost interval during storage; see
also P26
0 = intermittent defrosting will never
be activated (only the rst will be
activated)
6
P26 rst defrost delay from start of storage;
see also P25
1
P27 defrosting at start of chilling and
freezing 1 = YES
0
P28 drip-drain duration 2
P29 resetting of compressor protections at
start of defrosting (only if P22 = 1)
1 = YES
0
P30 elapsed time between the defrost
request and switching on the
compressor (only if P22 = 1 and
providing that the compressor is o
when the defrost is requested); see P31
(7) (8) also
30
P31 elapsed time between the defrost
request and activation of the solenoid
valve (only if P22 = 1 and on condition
that the compressor is o when
defrosting is requested); see also P30
0
P32 temperature above which the
evaporator fan is switched o during
storage (with reference to the
evaporator probe)
3
P33 P32 dierential 1
P34 evaporator fan activity during defrosting
(only if P22 = 0 or 1)
0 = on
1 = o
0
P35 evaporator stop time after dripping 3
P36 temperature above which the
evaporator fan is switched o (with
reference to the cabinet probe)
90
P37 eect caused by activation of microport
input on evaporator fan
0 = no eect
1 = the evaporator fan will be switched
o
1
P38 microport input contact type
0 = NA (input active with contact
closed)
1 = NC (input active with contact open)
1
P39 micro port input alarm delay 0
Parameter Description Factory
Value
P40 high pressure input contact type
0 = NA (input active with contact
closed)
1 = NC (input active with contact open)
0
P41 high pressure input alarm delay 120
P42 low pressure input contact type
0 = NA (input active with contact
closed)
1 = NC (input active with contact open)
0
P43 low pressure input alarm delay 0
P44 compressor thermal protection input
contact type
0 = NA (input active with contact
closed)
1 = NC (input active with contact open)
0
P45 compressor thermal protection input
alarm delay
0
P46 UV light on duration (duration of cabinet
sterilisation)
5
P47 needle probe heating end temperature
(with reference to the needle probe)
45
P48 maximum duration of needle probe
heating
15
P49 the temperature, below which the
door elements are switched on (with
reference to the cabinet probe)
5
P50 P49 dierential 2
P51 condenser fan activity in the absence of
the condenser probe (P61 = 0)
0 = in parallel with compressor
1 = on
1
P52 the temperature below which the
condenser fan is switched o in the
presence of the condenser probe
(P61 = 1) and on condition that the
compressor is on (with reference to the
condenser probe); see also P54
20
P53 P52 dierential 5
P54 condenser fan switch o delay on
switching o the compressor in the
presence of the condenser probe
(P61 = 1); see also P52
30
P55 chill and freeze cycle completion buzzer
duration
3
P56 maximum buzzer duration during an
alarm state
15
P57 elapsed time between switching on
the compressor and pump down valve
activation (pump down in power up);
also elapsed time between deactivation
of the pump down valve and switching
o the compressor (pump down in
power down)
10
P58 defrost parameter units of
measurement
0 = P25 h, P24, P26, P28, and P35 min
1 = P25 min, P24, P26, P28, and P35 s
0
P59 reserved 0
P60 probe type
0 = NTC
1 = PTC
0
P61 condenser probe enabling 1 = YES 0
54
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