Installation, Operation and Maintenance Manual
Marvel Plus
12
Subject to change without notice.
120.5-IM (1018)
Menu and Sub-Menu Areas
To enter the menu area, press the
Prg
button one time� The
active menu ready for selection will be the one with all capital
letters� Each menu item may or may not have submenus�
The “SYSTEM STATUS” menu is the first menu displayed
when pressing the
Prg
button� To go into the System
Enables screen, press the button and once the System
Enables screen appears in capital letters, “SYSTEM
ENABLES”, press the button to enter the system enables
submenu, or to go into another menu, press the or
button until the preferred menu is selected (appears
in capital letters) and press the button� All additional sub
menus for each main menu will appear once entered�
Enables
U01
System Enables
System ON/OFF
ON
Compressor 1 >
ON
Compressor 2 >
ON
This screen is the main screen to turn the unit on or off and
enable or disable the compressors� To turn the unit on or
off, or to enable or disable a component on these screens,
press the button to relocate the cursor to the component
to enable or disable� Next, press the or button one
time to toggle the setting on or off; then press the button
again to initiate the change�
System Enables
U01
System Enables
Dehumidification >
OFF
Humidification >
OFF
Heater 1 >
ON
Heater 2 >
ON
Heater 3 >
ON
This screen is used to turn dehumidification, humidification
and heater stages on and off�
Constant or Variable Air Flow Enables
U01
System Enables
Enable >
VAV
Control by >
Supply
This screen allows the user to enable either CAV (Constant
Air Volume) or VAV (Variable Air Volume) control based
on the type of unit and to enable either Supply or Return
Temperature control modes�
Set Points
Return Air
Temperature
Setpoint >
075.0°F
Band >
02.0°F
The Set Points menu is used to adjust the settings for
the specific modes of operation to maintain Return Air
Temperature, Supply Air Temperature, Duct Static Pressure,
etc�
