McQuay WGS130AA: WGS140AW, Руководство по эксплуатации

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70 WGS 130A to 190A OM WGS-5
setpoint values. The SCROLL mode allows the user to move about the matrix (from one
menu to another, one at a time) by using the four ARROW keys.
When in the MENU mode (as shown in Figure 10), pressing the LEFT ARROW key will
select the ALARM menus, the RIGHT ARROW key will select the VIEW menus and the
UP key the SET menus. The controller will go the next lower menu in the hierarchy, and
then other menus can be accessed by using the ARROW keys. Pressing the MENU key
from any menu screen will automatically return to the MENU mode as shown in Figure 10.
Another way to navigate through the menus is to press the MENU key when in the MENU
mode (as above). This will switch the controller to the SCROLL mode.
The controller will
automatically go to the first screen as shown below (the upper-left menu on the menu matrix
shown on pages 72 and 87. From there, the four ARROW keys can be used to scroll up,
down, or across to any other menu.
Figure 11, Display in the Shortcut (SCROLL) Mode and Keypad Layout
Air Conditioning
VIEW UNIT STATUS
Unit = COOL
Compr. #1/#2=OFF/OFF
Evap Pump = RUN
ENTER Key
Pressing the ENTER key changes the function of the ARROW keys to the editing function
as shown below:
LEFT key Default, changes a value to the factory-set default value.
RIGHT key Cancel, cancels any change made to a value and returns to the original
setting.
UP key Increment, increases the value of the setting
DOWN key Decrement decreases the value of a setting.
These four edit functions are indicated by one-character abbreviation on the right side of
the display (this mode is entered by pressing the ENTER key).
Changing Setpoints
Most menus containing setpoint values have several different setpoints shown on one menu.
When in a setpoint menu, the ENTER key is used to proceed from the top line to the second
line and on downward. The cursor will blink at the entry point for making a change. The
ARROW keys (now in the edit mode) are used to change the setpoint as described above.
When the change has been made, press the ENTER key to enter it. Nothing is changed until
the ENTER key is pressed.
For example, to change the chilled water setpoint:
1. Press MENU key to go to the MENU mode.
2. Press SET (the UP Key) to go to the setpoint menus.
3. Press UNIT SPs (the Right key) to go to setpoints associated with unit operation.
MENU Key
ENTER Key + Green light for comp. On
ARROW Keys (4)
Red light for fault indication