Defrost; Hot Gas Defrost - Carel ir33+FMC Guía Rápida

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
cct Compressor cut-OFF time
cPd Maximum compressor pull down time
AH High temperature alarm threshold
AL Low temperature alarm threshold
3.3

Defrost

The type of defrost selected by parameter d0.
If d0 = 0/2/4 the controller performs a defrost by heater or a static defrost by temperature or time.
If d0 = 1/3 the controller performs a hot gas defrost.
For this function, see the standard user manual.
Cod. Parameter
d0 type of defrost
0 = Heater by temperature
1 = Hot gas by temperature
2 = Heater by time
3 = Hot gas by time
4 = Heater by time with temperature control
3.4

Hot gas defrost

If d0 = 1/3 the controller performs a hot gas defrost.
The parameter cdf defines the hot gas defrost speed.
The hot gas defrost can be set as d0 = 1 -> hot gas defrost by temperature or d0 = 3 -> hot gas defrost by time.
Cod. Parameter
cdf Compressor frequency for hot gas defrost
d0 type of defrost
0 = Heater by temperature
1 = Hot gas by temperature
2 = Heater by time
3 = Hot gas by time
4 = Heater by time with temperature control
UOM Dis. Type
°C/°F F A
°C/°F F A
Hz/°C C A
Sec. C I
Sec. C I
Hz C I
Hz C I
Hz C I
Min. C I
Hours C I
°C/°F C F
°C/°F C F
UOM Dis.
- C
UOM Dis.
Hz C
- C
11
ir33+ wide Fullmotion - +040000055 - rel. 1.0 - 09.06.2014
ENG
Def. Max Min
-20 50 -50
1 0,1 20
2 800.0 0
120 999 0
0 255 0
53 255 0
100 255 0
52 255 0
1 255 0
1 240 0
-14 200 -50.0
-26 200 -50.0
Tab. 3.b
Type Def. Max Min
I 1 4 0
Tab. 3.c
Type Def. Max Min
I 140 255 0
I 1 4 0
Tab. 3.d