Carel ir33+ FMC - Defrost; Hot Gas Defrost

11
ENG
ir33+ wide Fullmotion - +040000055 - rel. 1.0 - 09.06.2014
Cod. Parameter UOM Dis. Type Def. Max Min
St Set point °C/°F F A -20 50 -50
rd Set point dierential °C/°F F A 1 0,1 20
cPr PID control proportional term Hz/°C C A 2 800.0 0
ctI PID control integral time Sec. C I 120 999 0
cdt PID control derivative time Sec. C I 0 255 0
csc Soft start frequency Hz C I 53 255 0
cMf Maximum compressor frequency Hz C I 100 255 0
cmf Minimum compressor frequency Hz C I 52 255 0
cct Compressor cut-OFF time Min. C I 1 255 0
cPd Maximum compressor pull down time Hours C I 1 240 0
AH High temperature alarm threshold °C/°F C F -14 200 -50.0
AL Low temperature alarm threshold °C/°F C F -26 200 -50.0
Tab. 3.b
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 UOM Dis. Type Def. Max Min
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
- C I 1 4 0
Tab. 3.c
3.4 Hot gas defrost
If d0 = 1/3 the controller performs a hot gas defrost.
The parameter cdf denes 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 UOM Dis. Type Def. Max Min
cdf Compressor frequency for hot gas defrost
Hz C I 140 255 0
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
- C I 1 4 0
Tab. 3.d