ECKELMANN WRG 3010 E, Инструкция по эксплуатации, Страница: 18 / 113

Firmware V1.4 20.05.2021 18/113
5 Function of WRG 3010 E
In installations with only one heat exchanger, the HT or LT assignment is freely selectable - it only needs to be
enabled accordingly during configuration in LDSWin, see chapter
Visualisation in LDSWin - HT / LT / Power
Signal Setpoints . Inadvertent enabling without these system components really existing would result in the
alarms being sent to the system centre.
Example : The temperature sensors, pump and valve were connected to the connections for HT and LT was
enabled in LDSWin, then all alarms for LT are enabled. In the absence of signals at the input terminals, all
alarms (LT) such as sensor break, pump fault and valve fault are sent to the system centre. In installations with
two heat exchangers, the first one after the NT compressors is always assigned to HT. The following heat
exchanger, between HT and the gas cooler, is always assigned to LT.
Unlike the other E*LDS products, the complete operation is only possible via LDSWin (not via the system
centre); for details, see chapter Operation of WRG 3010 E .
A prerequisite for all functional units is that the Emergency Stop has been correctly connected:
- heat recovery at the digital input 4 (terminals 56/57) and
- air conditioning operation at the digital input 23 (terminals 94/95)
* The monitoring of these digital inputs is protected against wire break, i.e. it works inverted; for a
"good" state, 230 V AC must be applied to the digital input!
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