7:2 (24), 0-004-7614-0 (GB) TAC AB, 1998-10-23
TAC 2413 Handbook Functional description
When the controller is in the timed operating mode, and the holiday
period starts, the clock symbol will be shown in the display window
and the AHU stops.
Air handling off
When the controller is “Off”, the symbol on the left is shown in the
display window and the AHU stops. Externally controlled stops via
X1 or X2 are shown by a flashing symbol.
P No. Parameter Min. Max. Factory set. Change Comment
P 00 Time. Indication and Off, Manual, Auto
choice of operating mode. 1/2 and 1/1 speed.
P 12 Weekly program 1/2 speed 07-17 Mon-Fri, one speed op.
P 13 Weekly program 1/1 speed
P 15 Yearly program 1 6 Choice of holiday period
P 16 Holiday start date 01 00 12 31 0100 Start date of holiday period
chosen above
P 17 Holiday end date 01 00 12 31 0100 End date of holiday period
chosen above
Changing the operating mode
The operating mode of the controller may be changed by the follo-
wing:
• The operator’s panel, by changing parameter P 00. Every
change must be confirmed by pressing the enter button for it to
be registered in the controller.
• The input for 1/2 speed operation (one speed operation) (X1).
• The input for 1/1 speed operation (X2).
• The holiday periods of the yearly program.
• The weekly program times of operation.
Priorities
Operating modes may be changed only by a function with equal
or higher priority than the function which has initiated the current
operating mode. The functions have the following priority (1 is
the highest priority):
1. Operating modes set from the operator’s panel of the controller
2. Input for half speed operation (one speed operation), X1
Input for full speed operation, X2
3. Yearly program during timed operation
4. Weekly program during timed operation
For example: The yearly program cannot affect the control if the input
for half speed operation is on.
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