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These variants are described below.
5.8.1 Control by a VS 3015 C
Introduction
The ECO compressors are controlled via the VS 3015 C pack controller.
Requirements
•
DIP switch S1 - coding switch 5 set to ON, see Basic settings with S1, page 77
•
The parameter "ECO-Betrieb" (menu 3-2-4) must be set to YES.
•
The parameter "ECO-compressor" (menu 3-2-4) must be set to YES.
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 EIN" limit value.
•
In HRC mode, the gas cooler outlet temperature must be above the "T.ECO EIN WRG" limit value.
•
In HRC mode, the HRC outlet temperature must be above the "T.ECO EIN WRG" 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.ÖG MD-V" limit value for 3
minutes.
•
The minimum standstill time of the ECO operation must be complied with, see parameter "ECO-
Standzeit".
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.
ECO operation
If any of these conditions is not met, the enable is withdrawn immediately!
Содержание VS 3015 C
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