36
To use the keypad when working with menus:
•Press the ▲ (Up arrow) button to move to the previous
menu.
•Press the ▼ (Down arrow) button to move to the next
menu.
• Press the (Enter) button to display the first item in the cur-
rently displayed menu.
• Press the (Menu Up/Exit) button to exit a menu’s item
and return to the list of menus.
Fig. 50 — W7220 Controller Menu Buttons
To use the keypad when working with Setpoints, System and Ad-
vanced Settings, Checkout tests and Alarms:
1. Navigate to the desired menu.
2. Press the (Enter) button to display the first item in the
currently displayed menu.
3. Use the and buttons to scroll to the desired parameter.
4. Press the (Enter) button to display the value of the cur-
rently displayed item.
5. Press the ▲ button to increase (change) the displayed param-
eter value.
6. Press the ▼ button to decrease (change) the displayed param-
eter value.
NOTE: When values are displayed, pressing and holding the or
button causes the display to automatically increment.
7. Press the (Enter) button to accept the displayed value and
store it in nonvolatile RAM.
8. “CHANGE STORED” displays.
9. Press the (Enter) button to return to the current menu
parameter.
10. Press the (Menu Up/Exit) button to return to the previous
menu.
MENU STRUCTURE
Table 12 illustrates the complete hierarchy of menus and parame-
ters for the EconoMi$er
®
X system.
The Menus in display order are:
•STATUS
•SETPOINTS
• SYSTEM SETUP
• ADVANCED SETUP
• CHECKOUT
•ALARMS
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 setup and configured for the installed system.
The setup process uses a hierarchical menu structure that is easy to
use. You 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 12 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 AND if you have 2 speed fan DCV MIN
(high and low speed) and DCV MAX (high and low speed
will appear).
IMPORTANT: During setup, the economizer module is
live at all times.
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