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For a detailed explanation of these parameters, see the standard ir33+ user manual.
Cod. Parameter
St
Set point
rd
Set point differential
cPr
PID control proportional term
ctI
PID control integral time
cdt
PID control derivative time
csc
Soft start frequency
cMf
Maximum compressor frequency
cmf
Minimum compressor frequency
cdf
Compressor frequency for hot gas defrost
cct
Compressor cut-off time
cPd
Maximum compressor pull down time
type of defrost
0 = Heater by temperature
1 = Hot gas by temperature
d0
2 = Heater by time
3 = Hot gas by time
4 = Heater by time with temperature control
dH1
Defrost valve delay
dH2
Drain post heat
dd
Dripping time after defrost (fans off )
AUX configuration for drain heater
5 = pump down valve
7 = delayed compressor (see c11)
H1
11 = reverse with neutral zone
12 = second compressor
13 = no function
14 = drain heater management
F0
Evaporator fan management
F1
Fan activation temperature (only if F0 = 1 or 2)
Evaporator fans with compressor off
F2
0 = see F0; 1 = Always off
F3
Evaporator fans during defrost: 0/1=on/off
Post dripping time after defrost ( drain heater remains on
Fd
during this time / fans off with control active)
rn
Neutral zone
rr
Reverse differential
Operating mode
r3
0 = Direct with defrost control (cooling)
1 = Direct (cooling)
/A2
Probe 2 configuration (S2)
0 Absent
1 Product (display only)
2 Defrost
3 Condenser
4 Frost
Probe 3 configuration (S3/ DI1) see /A2
/A3
1 Digital input 1
Probe 4 configuration (S4/ DI2) see /A2
/A4
1 Digital input 2
c0
Compressor, fan and AUX start delay at power on
c1
Minimum time between successive compressor starts
c2
Minimum compressor OFF time
ir33+ wide Fullmotion - +040000055 - rel. 1.0 - 09.06.2014
4.
PARAMETER TABLE
18
UOM
Dis. Type Def.
°C/°F
F
A
-20
°C/°F
F
A
1
Hz/°C
C
A
2
Sec.
C
I
120
Sec.
C
I
0
Hz
C
I
53
Hz
C
I
100
Hz
C
I
52
Hz
C
I
140
Min.
C
I
1
Hours
C
I
1
I
-
C
1
Sec
C
I
180
sec
C
I
180
min
C
A
2
I
-
C
14
-
C
I
0
°C/°F
C
I
5
I
-
C
1
I
min.
C
3
°C/°F
C
A
4
°C/°F
C
A
2
I
-
C
0
-
C
2
I
I
-
C
0
I
-
C
0
Min
C
I
0
-
-
-
-
-
-
-
-
Max
Min
50
-50
0,1
20
800.0
0
999
0
255
0
255
0
255
0
255
0
255
0
255
0
240
0
4
0
999
0
999
0
15
0
14
1
2
0
200
-50
1
0
15
0
60
0
20
0.1
1
0
4
0
4
0
4
0
15
0
-
-
-
-
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