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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.
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.
See Table 14 for damper minimum position settings and
readings on the checkout menus.
Time-Out and Screen-Saver — 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.
1 and 2 Speed Fan Operation — For 1 speed fan dry bulb and
enthalpy operation see Tables 15-18. For 2 speed fan operation
see Tables 19-22.
IMPORTANT: Table 13 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 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.
Содержание WeatherMaker 48TC 04
Страница 4: ...4 Fig 2 Unit Dimensional Drawing ...
Страница 5: ...5 Fig 2 Unit Dimensional Drawing cont ...
Страница 21: ...21 Fig 34 48TC B07 Unit with Humidi MiZer Adaptive Dehumidification System Humidistat Wiring ...
Страница 39: ...39 Fig 45 PremierLink Wiring Schematic ...
Страница 40: ...40 Fig 46 PremierLink Wiring Schematic with Humidi MiZer System ...
Страница 48: ...48 Fig 65 Typical RTU Open System Control Wiring Diagram ...
Страница 49: ...49 Fig 66 Typical RTU Open System Control Wiring Diagram with Humidi MiZer System ...