LG RCWFH Series, Инструкция по эксплуатации, Страница: 57 / 140

ENGLISH
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6) Guide Vane Maximum
This function is to protect the motor from overload or to block a load of the Chiller artificially.
This blocks the guide vane from opening bigger than the setting.
7) Hot Gas (Vane %)
This is an item to set when applying a hot gas bypass valve.
Action to open a hot gas bypass valve is implemented when opening reaches the setting when closing the vane
after reading feedback signals for controlling the opening of the guide vane.
If this value is set to 30%, the hot gas bypass vale opens from the point when opening of the main guide vane
reaches 30%, and when opening of the guide vane becomes 0%, the hot gas bypass valve opens to 100% (hot
gas maximum setting).
8) Hot Gas Maximum
This is an item to set when applying the hot gas bypass valve.
This item is to set the maximum value of opening of the hot gas bypass valve and blocks the valve from opening
larger than the setting.
If this value is set to 50%, the hot gas bypass valve does not open larger than that value.
9) Hot Gas Minimum
This is an item to set when applying the hot gas bypass valve.
The item is to set the minimum value of opening of the hot gas bypass valve and blocks the valve from closing
smaller than the setting.
If this value is set to 5%, the hot gas bypass valve does not close smaller than that value.
Main Guide Vane Opening Rate (%)
Hot gas valve opening rate(%)
Control signal
Control signal
Stops opening starts opening
Hot gas valve action point
30%
10%
5%
Figure 39. Hot Gas Valve Action