Sauter flexotron®800
ventilation
About flexotron®800
P100012082
9
2.2
Select language
In the basic display, press the Right button three times to go to the language selection.
Choose language
English
Press OK to choose language. Use the up and down arrows to move between
languages and press OK to confirm your choice.
After a few seconds, the display will show a start display in English for the chosen
application. After another few seconds, the display text will change to the selected
language, if another language than English has been selected.
flexotron®800
08:06:03 09:32
System:Stopped
Sp: 19.5 Act: 20.1°C
2.3
Ventilation application
The temperature controller is based on a supply air PI-controller for heating control with
a pre-programmed set of control modes. A number of different control functions as well
as analogue and digital in- and output functions can be bound to this controller. The
choice of which functions are to be used is free, the only restriction is the physical
number of inputs and outputs of the different models.
The flexotron®800 are designed for DIN-rail mounting.
The program for an air handling unit contains, apart from other things, the following
functions:
Different temperature control modes
Supply air temperature control, with or without outdoor temperature compensation
Room temperature control (cascade controller).
Extract air temperature control (cascade controller).
Seasonal switching between supply air temperature control and room/extract air
temperature control.
Extra, separate temperature control circuit for after-heaters etc.
With control of:
Heat exchanger (Liquid connected- , plate- or rotating) or mixing dampers.
Heating coil; Water with frost protection or electric.
Chiller: Water-heated or DX in up to three steps.
Circulation pumps heating, cooling, exchanger.
Fan control
1- or 2-speed supply air fans and extract air fans.
Frequency controlled supply and extract air fans with pressure or flow control, manual
control or external control from a VAV system. Pressure controlled supply air fan with
slave connected extract air fan (output dependent or flow dependent).
Humidity control
Either humidification or dehumidification, or both humidification and dehumidification.
Timer control
For starting and stopping the unit. Up to five timer outputs for control of external
functions such as lighting, doorlocks etc.
Demand control
In buildings with strongly varying occupancy the fan speeds or mixing dampers can be
controlled by the air quality measured by a CO
2
/VOC sensor.