2:6 (8), 0-004-7516-1 (GB)
TAC AB, 1999-08-18
TAC Xenta 102 Handbook
The zone controller TAC Xenta 102
2.3.5 Air flow control with one stage electric reheat (TAC Xenta
102-EF)
The controller maintains the zone temperature by sequence con-
trolling the air flow controller (VAV-Compact) and the electric
heating coil. The air flow is minimum and maximum limited.
When heating, the controller controls the electric heating coil via a
relay in combination with setting the air flow to its minimum
value.
2.3.6 Air flow control with one stage electric reheat and fan (TAC
Xenta 102-EF)
The controller controls the zone temperature by sequence
controlling the air flow controller (VAV-Compact) and the
electric heating coil. The air flow is minimum and maximum
limited. When heating, the controller controls the electric
heating coil by means of a relay in combination with the fan
running to increase the air circulation through the heating coil.
In this application (electric fan), the minimum limitation
may have separate settings for cooling and heating.
Window
contact
Carbon dioxide
sensor
Wall
module
Occupancy
sensor
Figure 2.6 Control application for TAC Xenta 102-EF
Damper and air
flow controller
Electric
heating coil