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• Press the (Enter) button to display the first item in the
currently displayed menu.
Fig. 44 — W7220 Controller Navigation Buttons
Press the
(Menu Up/Exit) button to exit a menu's
item and return to the list of menusTo use the keypad when
working with Setpoints, System and Advanced 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 parame-
ter.
4. Press the
(Enter) button to display the value of the
currently displayed item.
5. Press the ▲ button to increase (change) the displayed pa-
rameter value.
6. Press the ▼ button to decrease (change) the displayed pa-
rameter 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 pre-
vious menu.
MENU STRUCTURE — Table 11 illustrates the complete hi-
erarchy of menus and parameters for the EconoMi$er
tem.
The Menus in display order are:
• STATUS
• SETPOINTS
• SYSTEM SETUP
• ADVANCED SETUP
• CHECKOUT
• ALARMS
IMPORTANT: Table 11 illustrates the complete hierar-
chy. Your menu parameters may be different depending
on your configuration.
For example if you do not have a DCV (CO
then none of the DCV parameters appear and only MIN
POS will display. If you have a CO
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).
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 located 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.
IMPORTANT: During setup, the economizer module is
live at all times.
The setup process uses a hierarchical menu structure that is
easy to use. Press the ▲ and ▼ arrow buttons to move forward
and backward 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 displays a screen
saver, which cycles through the Status items. Each Status items
displays in turn and cycles to the next item after 5 seconds.
27
®
X sys-
) sensor,
2
sensor, the DCV MIN
2
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