Emerson Dixell iChill IC200D EVO Series, Инструкции по установке и эксплуатации

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1592015610 User manual IC200D EVO GB rel1.0 10.11.2015_rev10 IC200D 88/192
14 Pb4 of I/O expansion module (ICX207D)
15 Pb5 of I/O expansion module (ICX207D)
16 Pb6 of I/O expansion module (ICX207D)
17 Pb7 of I/O expansion module (ICX207D)
18 Pb8 of I/O expansion module (ICX207D)
19 Pb1 of electronic expansion valve 1 (IEV)
20 Pb2 of electronic expansion valve 1 (IEV)
21 Pb3 of electronic expansion valve 1 (IEV)
22 Pb4 of electronic expansion valve 1 (IEV)
37.
DEFROST CYCLE
The following condition are mandatory to enable the defrost:

The Ichill has to be configured as Heat pump unit

DF01>0 (defrost enabled)
dF01 Defrost configuration:
0= Not enabled
1= Start and stop for temperature / pressure
2= Start depends on probe selected by par. dF24 and stop for time duration (dF05)
3= Start depends on probe selected by par. dF24 and stop for external contact
4= Defrost only with condenser fan
5= Start from digital input and stop on probe selected by par. dF24
37.1 AUTOMATIC DEFROST PROCEDURE
Phase 1
When the condenser temperature/pressure or evaporating pressure falls below dF02 and at least one
compressor is ON, the delay between two defrost dF09 starts counting.
The display of the keyboard shows the symbol
blinkking.
dF09 counter is reloaded in case of power down, after a defrost cycle, when the Ichill change the operation
mode (from heat pump to chiller) or when the Ichill is in STD-BY or remote OFF.
dF09 counter is stopped if the last compressor of the circuit is turned off or if the pressure-temperature of the
condensing-evaporating probe increase over dF02.
Phase 2
When dF09 counter is elapsed the defrost procedure starts.
If one digital input is configured as “end defrost” is active, the unit waits until the contact is de-activated.
If one probe is configured as combined defrost:

If the combined defrost probe of the 1
st
circuit is lower than dF10 and/or the combined defrost probe of the
circuit 2 is lower than dF12, the process proceeds to phase 3.

If the combined defrost probe of the 1
st
circuit is higher than dF10 and/or the combined defrost probe of the
circuit 2 is higher than dF12, the process doesn’t proceed to phase 3
Phase 3
If dF07=0 the reversiong valve is activated without stopping any conmpressor and the defrost cycle is
immediately activated.
If df07>0:
1. Compressors are turned off
2. After dF07 / 2 the reversing valve is activated;
3. After dF07 / 2 the compressor is activated; if dF14=1 and / or dF15=1 all the compressor are activated
(with a delay of dF16).
Phase 4
Defrost ON
Condenser fan management:

If dF17=0: condenser fan are always off;

If dF17=1: condenser fans start if the condensing temperature-pressure value is higher than dF18 and
the regulation is the standard chiller regulation.