PAR.
DESCRIPTION
RANGE
DEFAULT
VALUE
LEVEL
U.M.
SEt
Set point with range falling between the minimum
LSE set point and the maximum HSE set point. The
value of the set point is in the
machine status
menu
LSE...HSE
0.0
°C/°F
diF
When the compressor stops when it reaches the
set point value, it restarts at a value corresponding
to the set point plus the value of the differential It
must not be 0
0.1...30.0
2.0
1-2
°C/°F
HSE
Maximum set point value
LSE...302
50.0
1-2
°C/°F
LSE
Minimum set point value
-58.0...HSE
-50.0
1-2
°C/°F
OSP
Offset point. Value to be added to set point if
reduced set point is activated Economy function).
-30.0...30.0
0
2
°C/°F
Cit
Minimum compressor ON time. Minimum time for
activating a compressor before deactivation Not
active if=0
0...250
0
2
min
CAt
Maximum compressor ON time. Maximum time for
activating a compressor before deactivation Not
active if=0
0...250
0
2
min
Ont (1)
Compressor activation time if probe is faulty. If set
to 1 with OFt=0 the compressor always remains on
whereas if OFt>0 it operates in duty cycle mode
(see
Duty Cycle
diagram)
0...250
0
1-2
min
OFt (1)
Compressor shut-down time if probe is faulty. If set
to 1 with Ont=0 the compressor always remains off
whereas if OFt>0 it operates in duty cycle mode
(see
Duty Cycle
diagram)
0...250
1
1-2
min
dOn
Delay in activating compressor relay after start-up
0...250
0
1-2
sec
dOF
Delay after shut-down; between compressor relay
shut-down and subsequent start-up the specified
time must elapse.
0...250
0
1-2
min
dbi
Delay between switch-ons; the specified time must
elapse between two subsequent switch-ons
0...250
0
1-2
min
OdO
Delay in activating outputs after start-up of instru-
ment or after a power failure. Not active if=0
0...250
0
1-2
min
dty
Defrost type:
0 = Electrical or Off Cycle defrost (Compressor
OFF during Defrost;
1 = Reverse cycle defrost (hot gas - Compressor
On during Defrost);
2 = ’Free’ : Independent defrost (compressor cycles ON/OFF according to temperature during defrost)
0/1/2
0
1-2
flag
dit
Period of time elapsing between the start of two
defrosts 0=function disabled
0...250
6
1-2
hours
dt1
Unit of measurement for defrost times (par. dit)
0=”dit” expressed in hours
1=”dit” expressed in minutes
2=”dit” expressed in seconds
0/1/2
0
2
flag
NOTE: At level 1 the folders will only display all the level 1 parameters. At level 2 the folders will only display all the
level 2 parameters. The symbol 1-2 indicates the parameters that are displayed at both menu levels
Defrosting controller
-dEF label
Compressor controller
-CP label
dt2
Unit of measurement for duration of defrosting
(dEt parameter)
0= “dEt” parameter expressed in hours
1= “dEt” parameter expressed in minutes
2= “dEt” parameter expressed in seconds
0/1/2
1
2
flag
dCt
Selection of defrosting time count mode.
0=compressor operating hours DIGIFROST®
method). Defrosting active only if compressor is
on.
1 = equipment operating hours; defrost counting is
always active when the machine is on
2=compressor stop Each time the compressor stops
a defrosting cycle according to par. dtY
3=con RTC. Defrosting at times set by dE1...dE8,
F1...F8 parameters.
0/1/2/3
1
1-2
flag
dOH
Delay between start of first defrosting operation
and start-up of instrument.
0...59
0
1-2
min
dEt
Defrosting time-out; determines maximum dura-
tion of defrosting.
1...250
30
1-2
min
dE2
Defrosting time-out on second evaporator; deter-
mines maximum duration of defrosting on 2nd
evaporator
1...250
30
2
min
EWDR 983-985/CS (LX) - EWDR 985/CSK (LX)
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