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Once the low superheating threshold has been exceeded, the regulator corrects the
adjustment by opening the valve, for each second that passes, of the value expressed with
parameter Et18 / Et38
•
Et19 / Et39 = maximum aperture percentage of the valve in cooling and heating mode
Under special circumstances there might be the need to change the maximum aperture value
of the valve. This can be done by setting the suitable value for this parameter.
•
Et20 / Et40 = minimum aperture percentage of the valve in cooling and heating mode
Under special circumstances there might be the need to change the minimum aperture value
of the valve. This can be done by setting the suitable value for this parameter.
•
Et21 / Et41 = filter for the pressure measurement in cooling and heating mode
These parameters can be used to slow down the pressure reading, which effectively serves
as a filter in the event of extensive pressure
•
Et22 / Et42 = filter for the temperature measurement in cooling and heating mode
These parameters can be used to slow down the temperature reading, which effectively
serves as a filter in the event of extensive temperature
•
Et23 / Et43 = time for which aperture is maintained from when the adjustment starts
When the adjustment starts, the valve is open at the value set under parameters Et1 / Et4
and it is "frozen" in this state for the Et23 / Et43 time.
If the IEV is connected via LAN to the Ichill 200EVO, the consent to turn on the compressor
is given once this time has elapsed; if the IEV is in STD_ALONE mode when the adjustment
starts, the valve will keep the aperture set for the Et23 / Et43 time without "synching" with the
start-up of the compressor
•
Et24 / Et44 = time to update the aperture and closure of the valve
This parameter is used to change, if necessary, the time to update the aperture and close of
the valve
•
Et25 / Et45 = aperture time of the valve in the event of a probe error
In the event of a probe failure, the aperture of the valve is increased by Et26 / Et45 percent
every Et25 / Et45 seconds
•
Et26 / Et46 = aperture percentage of the valve in the event of a probe error
In the event of a probe failure, the aperture of the valve is increased by Et26 / Et45 percent
every Et25 / Et45 seconds
•
Et47 = LOP alarm signal delay
•
Et48 = MOP alarm signal delay
•
Et49 = High superheating alarm signal delay
•
Et50 = Low superheating alarm signal delay
•
Et51 = PID proportional constant in defrost mode
During operation in defrost mode, the valve's adjustment is carried out in accordance with
the cooling mode, except for the fact that the value of the PID proportional constant, which is
the dedicated Et51 parameter
•
Et52 = Number of aperture steps of valve 1 before the adjustment in defrost mode
At the time of entry in defrost mode, the valve sets itself to the number of steps set under
parameter Et52 for the Et53 time
•
Et53 = Time for which the steps of valve 1 are maintained before the adjustment for defrost
•
Et54 = Number of aperture steps of valve 2 before the adjustment in defrost mode
At the time of entry in defrost mode, the valve sets itself to the number of steps set under
parameter Et54 for the Et55 time
•
Et55 = Time for which the steps of valve 2 are maintained before the adjustment for defrost
•
Et56 = Increase/decrease opening percentage when the PID is saturated in cooling mode
1592026270 IEV12-14D GB r.1.0 21.02.2019
IEV
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