27
NOTE: Some parameters in the menus use the letters MA or
MAT, indicating a mixed air temperature sensor location before
the cooling coil. This unit application has the control sensor locat-
ed after the cooling coil, in the fan section, where it is designated
as (Cooling) Supply Air Temperature or SAT sensor.
SETUP AND CONFIGURATION
Before being placed into service, the W7220 Economizer module
must be set up and configured for the installed system.
The setup process uses a hierarchical menu structure that is easy to
use. Press the
▲
and
▼
arrow buttons to move forward and back-
ward through the menus and press the button to select and confirm
setup item changes.
TIME-OUT AND SCREENSAVER
When no buttons have been pressed for 10 minutes, the LCD dis-
plays a screen saver, which cycles through the Status items. Each
Status items displays in turn and cycles to the next item after
5 seconds.
IMPORTANT: Table 7 illustrates the complete hierarchy.
Your menu parameters may be different depending on your
configuration.
For example, if you do not have a DCV (CO
2
) sensor, then none
of the DCV parameters appear and only MIN POS will display.
If you have a CO
2
sensor, the DCV MIN and DCV MAX will
appear.
IMPORTANT: During setup, the economizer module is
live at all times.
Summary of Contents for WeatherMaster 50GC 04-06 Series
Page 4: ...4 Fig 2 50GC 04 06 Unit Dimensional Drawing...
Page 5: ...5 Fig 2 50GC 04 06 Unit Dimensional Drawing cont...
Page 6: ...6 Fig 2 50GC 04 06 Unit Dimensional Drawing cont...
Page 22: ...22 Fig 42 Typical 50GC 04 06 Control Wiring Diagram 208 230V W7220 Control Unit Shown...
Page 23: ...23 Fig 43 Typical 50GC 04 06 Power Wiring Diagram 208 230V Unit Shown...
Page 41: ......
