TEC Zoning Control System for Stand-Alone and BACnet® MS/TP ...
TEC Zoning Control System for Stand-Alone and BACnet® MS/TP ...
TEC Zoning Control System for Stand-Alone and BACnet® MS/TP ...
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The system mode can be set to either Off or Auto. The Auto mode allows therooftop controller to determine, from the average PI dem<strong>and</strong> (if a network isdetected) or from the return air sensor PI dem<strong>and</strong>s (if a network is not detected), ifthe rooftop unit is in heating mode or cooling mode.FIG:mn_usr_mnuFigure 18: Main User MenuSequence of Auto Status Display ScrollingThe <strong>TEC</strong>2664Z-2 Rooftop <strong>Control</strong>ler features a two-line, eight-character statusdisplay. A low-level, backlight is always active, <strong>and</strong> can only be seen in the dark.When the rooftop controller is left unattended, an auto scroll status displayindicates the actual status of the system.<strong>TEC</strong> <strong>Zoning</strong> <strong>Control</strong> <strong>System</strong> <strong>for</strong> <strong>St<strong>and</strong></strong>-<strong>Alone</strong> <strong>and</strong> <strong>BACnet®</strong> <strong>MS</strong>/<strong>TP</strong> Networked ApplicationsTechnical Bulletin49