Manual 2100-559A
Page 4 of 6
START-UP NOTE: Upon initial power-up, indoor fan will cycle on for approximately 30 seconds, and then shut off.
System will be in the “OFF” position. Default time and date will be 12:00 a.m., Jan. 1, 2000.
In order for the system to operate in either heating or cooling mode(s), the controller must be
initially programmed with specific HVAC model number, specific system enabling and appropriate
temperature setpoints.
BASIC SETUP
Home, Main Menu and Override Screens
FIGURE 2
ECU Series Controller Home, Overide and Configuration Screens
BASIC OPERATION
Navigate the menus and change settings by pressing a
combination of the four arrow buttons and the ENTER
button.
• ENTER button to select and/or exit value editing
• UP or DOWN button to move among entries
• RIGHT or LEFT button to move among value fields
• LEFT button to return to the Home screen
FIGURE 3
ECU Series Controller Buttons
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