Emerson Dixell iChill IC207D - OUTPUT STEP RELE’ CONDENSER FAN; PWM OUTPUT FOR FAN CONTROL; PROPORTIONAL REGULATION OF CONDENSER FANS

1592015610 User manual IC200D EVO GB rel1.0 10.11.2015_rev10 IC200D 75/192
Fans on in proportional regulation (PWM, 4..20mA or 0..10V) according to condenser temperature/pressure
(only when the compressor is on).
When the compressor turns off the fans are thermoregulated depending on the condensing
temperature/pressure.
30.1 OUTPUT STEP RELE’ CONDENSER FAN
Par FA01 = 2 ON/OFF step regulation
E.G.: 1 circuit and 4 step of ventilation
OUT relè
step n° 1
step n° 2
step n° 3
step n° 4
Out relè step n° 1
ON
OFF
OFF
OFF
Out relè step n° 2
OFF
ON
OFF
OFF
Out relè step n° 3
OFF
OFF
ON
OFF
Out relè step n° 4
OFF
OFF
OFF
ON
Par FA01 = 3 ON/OFF continuous step regulation
E.G.: 1 circuit and 4 step of ventilation
Continuous step regulation
OUT relè
step n° 1
step n° 2
step n° 3
step n° 4
Out relè step n° 1
ON
ON
ON
ON
Out relè step n° 2
OFF
ON
ON
ON
Out relè step n° 3
OFF
OFF
ON
ON
Out relè step n° 4
OFF
OFF
OFF
ON
30.2 PWM OUTPUT FOR FAN CONTROL
When the condenser fan is switched on it works at maximum speed for FA03 time, then it modulate
according to condenser pressure/temperature or evaporator pressure (heat pump mode).
FA04 parameter allows to adapt the signal to the motor (current-voltage phase displacement of a line-
powered ac load).
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).
30.3 CONDENSING UNIT: COMMON OR SEPARATE CONDENSER
FA05 defines the condenser unit
Par. FA05 type of condenser
FA05=0 Common condenser unit (only one common fan but a probe for each condenser is needed)
FA05=1 Separate condenser units (one fan and one probe for circuit are needed)
If FA05= 0 the condenser fan of the circuit 1 and circuit 2 works in parallel:
 CHILLER mode: the regulation probe is the probe that has the higher value
 HEAT PUMP mode: the regulation probe is the probe that has the lower value
30.4 PROPORTIONAL REGULATION OF CONDENSER FANS
Condenser fan in Chiller mode.