11002347AA
date of change: 20.08.2014
Page: 12/19
8 Logic >> Explanations for the functions of the control conditions
8.1 Cooling and defrosting with hot gas >>
delivery state FR4.1
Cooling:
COMP active (compressor on) FAN active (fan on)
DEF inactive (magnetic valve off)
Hot gas defrosting:
COMP active (compressor on) FAN inactive (fan off) DEF active (magnetic valve on)
8.2 Cooling and defrosting with recirculated air >> see changes in parameters point 5.2.
Cooling:
COMP active (compressor on) FAN active (fan on) DEF inactive (magnetic valve on)
Recirculated-air defrosting:
COMP inactive (compressor off) FAN active (fan on)
DEF inactive (magnetic valve off)
8.3 Neutral zone (c heating with hot gas) and defrosting with hot gas >> see
changes in parameters point 5.3.
Cooling (valid if SP > HI):
COMP active (compressor on) FAN active (fan on)
DEF inactive (magnetic valve off)
Heating (valid if SP < LO):
COMP active (compressor on) FAN active (fan on)
DEF active (magnetic valve on)
Neutral zone (ON/OFF at SP):
COMP inactive (compressor off) FAN active (fan on)
DEF inactive (magnetic valve
off)
Defrosting with hot gas:
COMP active (compressor on) FAN inactive (fan off) DEF active (magnetic valve on)