1592015610 User manual IC200D EVO GB rel1.0 10.11.2015_rev10 IC200D 77/192
30.6 PRE-VENTILATION AND POST-VENTILATION
Pre-ventilation:
in chiller and heat pump mode when first compressor is swtiched on if FA06>0 and/or FA30>0 the fan runs
at maximum speed for FA06 and/or FA30.
Post-ventilation:
in heat pump mode if FA31>0 and outside temperature > FA32, when last compressor is switched off the
condenser fan (if on at that moment) is forced at FA33 speed for FA31 seconds (outside temperature probe
is required).
30.7 CONDENSER FAN IN DEFROST
During defrost the condenser fan regulate as shown below.
The basic adjustment is that of the operation in chiller, with the following differences:
• the threshold temperature / pressure for enabling the fan is determined by parameter dF18
• Once the fan is started, the modulation occurs between the pressure values FA09 and FA09 FA11 +
• speed at the end of modulation is determined by the parameter FA34
• in case of increasing temperature / pressure to a value higher than FA35, fans are forced to maximum
speed of FA08
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