32
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 lo-
cated after the cooling coil, in the fan section, where it is desig-
nated 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 for-
ward 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.
IMPORTANT: Table 8 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
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 50KC*A/B0 Series
Page 4: ...4 Fig 2 Dimensional Drawing...
Page 5: ...5 Fig 2 Unit Dimensional Drawing cont...
Page 22: ...22 Fig 38 Electro Mechanical Control Wiring Diagram...
Page 23: ...23 Fig 39 Electro Mechanical Control Wiring Diagram with Humidi MiZer System...
Page 24: ...24 Fig 40 Electro Mechanical Power Wiring...
Page 25: ...25 Fig 41 PremierLink Wiring Schematic...
Page 26: ...26 Fig 42 PremierLink Wiring Schematic with Humidi MiZer System...
Page 27: ...27 Fig 43 RTU Open System Control Wiring Diagram...
Page 28: ...28 Fig 44 RTU Open System Control Wiring Diagram with Humidi MiZer System...
Page 43: ...43 Fig 57 TXV Metering Device Position in Reheat Coil Typical Diagram for Sizes 04 06 TXV...
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