User manual

1592022700 User manual iCHILL 200CX Rel. 1.0 22/04/2009
Par. FA01 = 1 + Par. FA02 = 1
Independent from the compressor status but off in stand–by.
Par. FA01 = 2 + Par. FA02 = 0
Fans on, with ON/OFF regulation and with temperature/pressure transducer control, only when the compressor is on (at least one relay
is configured as fan control). When the compressor turns off also the fans are forced off.
Par. FA01 = 2 + Par. FA02 = 1
Fans on, with ON/OFF regulation and with temperature/pressure transducer control, only when the compressor is on (at least one relay
is configured as fan control). When the compressor turns off the fans are thermoregulated depending on the condensing
temperature/pressure.
Par. FA01 = 3 + Par. FA02 = 0
Fans on, with ON/OFF continuos regulation and with temperature/pressure transducer control, only when the compressor is on (at least
one relay is configured as fan control). When the compressor turns off also the fans are forced off.
Par. FA01 = 3 + Par. FA02 = 1
Fans on, with ON/OFF continuos regulation and with temperature/pressure transducer control, only when the compressor is on (at least
one relay is configured as fan control). When the compressor turns off the fans are thermoregulated depending on the condensing
temperature/pressure.
Par. FA01 = 4 + Par. FA02 = 0
Fans on, with proportional regulation (PWM, 0..10V) and with temperature/pressure transducer control, only when the compressor is on.
When the compressor turns off also the fans are forced off.
Par. FA01 = 4 + Par. FA02 = 2
Fans on, with proportional regulation (PWM, 0..10V) and with temperature/pressure transducer control, only when the compressor is on.
When the compressor turns off the fans are thermoregulated depending on the condensing temperature/pressure.
31.1 ON/OFF CONDENSER FAN
Par FA01 = 2 ON/OFF regulation
N° 1 circuit with 3 steps of ventilation
Step regulation
OUT relè Step n° 1 Step n° 2 Step n° 3
Out relè step n° 1 step N° 1 ON step N° 1 OFF step N° 1 OFF
Out relè step n° 2 step N° 2 OFF step N° 2 ON step N° 2 OFF
Out relè step n° 3 step N° 3 OFF step N° 3 OFF step N° 3 ON
Par FA01 = 3 ON/OFF continuous step regulation
N° 1 circuit with 3 steps of ventilation
Continuous step regulation
OUT relè Step n° 1 Step n° 2 Step n° 3
Out relè step n° 1 step N° 1 ON step N° 1 OFF step N° 1 OFF
Out relè step n° 2 step N° 2 ON step N° 2 ON step N° 2 OFF
Out relè step n° 3 step N° 3 ON step N° 3 ON step N° 3 ON
31.2 PROPORTIONAL FAN CONTROL (PWM OR 0..10V)
If FA01=4 (proportional control) the FA03 and FA04 (only for PWM output) parameters has to be configured to adapt the output signal to
a characteristic of the load.
The fan start-up is always made at the maximum speed for the time set in FA03, then the speed follows the probe value.
The F04 delay, in micro – seconds, allows to adjust the output for each kind of the fan motor.
If FA01=3, when the compressor starts-up and the proportional regulation requires to turn off the fan (cut-off), if FA14≠0 the fan is forced
at the minimum speed for the time set in FA14 itself. if FA14=0 the function is disabled.
31.3 CONDENSING UNIT: COMMON OR SEPARATE
The parameter FA05 defines the condenser unit
FA05=0= Common condenser unit.
FA05=1= Separate condenser units.
If Pa FA05= 0 the outputs, configured as condensing fan control, will follow the same regulation algorithm.
The regulation includes:
• CHILLER mode: the fan works on the maximum probe value of the two circuits
• HEAT PUMP (no evaporator probe configured): the fan works on the minimum probe value (condenser temperature/pressure)
of the two circuits
• HEAT PUMP (evaporator probe configured): the fan works on the minimum probe value (evaporator temperature/pressure) of
the two circuits
If par. FA05 = 1 and if the evaporating pressure probe are not configured, the fan output controls are separated and are controlled by
the condenser temperature/pressure probes. When the evaporator probes are configured, in heat pump the ventilation is controlled by
these transducers.