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Conditions for the enable of ECO operation
The following values are included for the enable of the ECO operation
:
•
In normal operation, the outdoor temperature must be above the "
Temp.ECO ON
" limit value.
•
In HRC mode, the gas cooler outlet temperature must be above the "
Temp.ECO ON HR
" limit value.
•
In HRC mode, the HRC outlet temperature must be above the "
Temp.ECO ON HR
" limit value
if the gas cooler package is bypassed using the gas cooler bypass valve.
•
Opening degree of the medium pressure valve that must be above the "
Min.op.deg.MPV
" limit value for
3 minutes.
•
The minimum standstill time of the ECO operation must be complied with, see parameter "
ECO
idletime
".
Conditions for the block of ECO operation
The following values are included for the blocking of the ECO operation
:
•
No low pressure compressor is running (at least one LP compressor must run).
•
There is a high pressure fault.
•
The outdoor temperature sensor or the medium pressure transmitter has a measuring circuit error.
Configuration
The following parameters are required for the control of the ECO compressor. The ECO compressor draws in
the refrigerant before the medium pressure valve and pumps the refrigerant to the high pressure side before
the gas cooler.
Menu
ECO POS: XXXXX
Description
Input
Defaul
t
Dim.
3-2-4 ECO-Mode X
Activation of the ECO operation (YES)
Y/N
N
-
3-2-4 Temp.ECO ON XX °C Switch-on temperature for the ECO operation solenoid valve
--: The switch-on temperature for the HRC ECO operation solenoid valve is
ignored.
--,
20..40
29
°C
3-2-4 Temp.ECO ON HR XX
°C
Switch-on temperature for the HRC ECO operation solenoid valve when gas
cooler bypass is active
--: The switch-on temperature for the HRC ECO operation solenoid valve is
ignored.
--,
15..40
29
°C
3-2-4 Hysteresis XX K
Difference for the ECO operation switch-on temperature, using which the
temperature
for the shutdown of the ECO operation is defined.
2..10
4
K
3-2-4 Min.op.deg.MPV
Minimum opening degree of the medium pressure valve for the enable of
the ECO compressors
10..80
60
%
3-2-4 ECO idletime
Minimum standstill time of the ECO compressor
10..360 300
sec.
If any of these conditions is not met, the enable is withdrawn immediately!
Содержание VS 3015 C
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