TAC AB, 1998-10-23 0-004-7614-0 (GB), 2:1 (2)
TAC 2413 Handbook The air handling controller TAC 2413
2 The air handling controller TAC 2413
TAC 2413 is a digital controller which is able to control, monitor and
supervise air handling units (AHU) in buildings.
TAC 2413 controls the room temperature or the supply air temperature
by controlling a heating coil, a cooling coil and heat recovery in se-
quence. The controller also contains functions for timed operation,
alarms, pump and fan control, and so on.
TAC 2413 has a clock which may be used to set weekly and yearly
programs, as well as powerful control functions for automatic opera-
tion. Reading and setting temperatures and other parameters is a
simple process. The display window provides you with clear informa-
tion in the form of numbers and symbols.
The controller may be mounted on a norm rail EN 500 22
(TS 35 mm), in a panel or on a wall.
2.1 Function
When the AHU starts, the return air fan (FF) is always started first;
then, supply air fan (TF) starts running. Both fans start on half
speed, no matter what speed has been chosen. If full speed has
been chosen, it is activated 30 seconds later than TF starts.
During the transition from full speed to half speed operation, both
fans are stopped for 10 seconds, then, FF is started before TF.
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