User manual

1592022700 User manual iCHILL 200CX Rel. 1.0 22/04/2009
Pg.48/114
Modulating control of the condenser pump in Chiller mode:
Modulating control of the condenser pump in Heat pump mode:
31 CONDENSER FAN REGULATION
With the parameters CF43..CF46 is possible to select the analog output (OUT1..OUT4) and the signal to manage the condenser fan in
proportional mode.
If the condenser fan is managed by PWM output, the parameter CF54 “Power supply frequency” has to be configured different to 0.
This parameter allows to select the power supply frequency (50Hz or 60Hz) and enable/disable the frequency alarm.
If the condenser fan is not managed by PWM output, set the parameter CF54= 0.
The FA01 and FA02 parameters define the operative mode of the condenser fans.
Par. FA01 Fan regulation
0 = Output not enabled
1 = Always on
2 = ON/OFF step regulation
3 = ON/OFF continuous step regulation
4 = proportional fan speed
Par. FA02 Fan operative mode
0 = Fan on only if compressor on
1 = Independent from the compressor, off during the stand–by / or from remote OFF
Parameter combination FA01 – FA02
Par. FA01 = 1 + Par. FA02 = 0
Fans on when the compressor on (the fans work following the same output algorithm)