McQuay WGS130AA: WGS140AW, Operating Manual

Page: 72 / 98

72 WGS 130A to 190A OM WGS-5
Menu Descriptions
Unit Controller
Various menus are shown in the controller display. Each menu screen shows specific
information. In some cases menus are used only to
view the status of the unit, in some cases
they are used for checking and clearing alarms , and in some case they are used to set the
setpoint values that can be changed.
The menus are arranged in a matrix of screens across a top horizontal row. Some of these
top-level screens have sub-screens located under them. The content of each screen and its
location in the matrix are shown in Unit Controller Menu Matrix. Each menu screen’s
detailed description begins on page 73.
The ARROW keys on the controller are used to navigate through the menus. The keys are
also used to change numerical setpoint values contained in certain menus.
As an alternate to selecting screens with the menu function, it is possible to scroll through
all of them with the 4 arrow keys. For this use, the screens are arranged logically in a
matrix as shown below.
Shortcut Menus
These menus are accessed by pressing the Menu button at any time. The hierarchical
structure of the shortcut menus is shown below.
Table 24, Unit Controller Shortcut Menus
LEVEL 1 LEVEL 2 LEVEL 3
STATUS VIEW UNIT STATUS (1-4)
UNIT
TEMP VIEW UNIT TEMP (1-3)
CIR 1 VIEW CIR 1 STATUS (1-5)
CIR STATUS
CIR 2 VIEW CIR 2 STATUS (1-5)
CIR 1 VIEW REFR CIR 1 (1-5)
REFRIGERANT
CIR 2 VIEW REFR CIR 2 (1-5)
FANS VIEW FANS
VIEW
TOWER VIEW TOWER (1-2)/
LOG EVENT/ALARM LOG
ALARM
ACTIVE ALARM ACTIVE
UNIT SPs SET UNIT SPs (1-15)
COMPRESSOR SPs SET COMP SPs (1-4)
ALARM LIMITS SET ALARM LIMITS (1-4)
SET
TOWER SPs SET TOWER SPs (1-8)