Corrigo ventilation 3.4 manu

12 Chapter 2 About Corrigo Manual Corrigo Ventilation, revision R
2.2.2 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. Certain functions are necessary,
while others can be considered optional. 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 maximum
number of I/Os is 3*28 (a 2- or 3-port Corrigo with two expansion units).
The Corrigo is 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 control).
 Extract air control (cascade control).
 Seasonal switching between supply air temperature control and room/extract air
temperature control.
 Outdoor compensated room/extract air control. Can also be controlled as cascade control.
 Extra, separate temperature control circuit for after-heaters, etc.
 Extra control sequences Y4 and Y5 (in addition to Y1, Y2 and Y3) for free integration
into the controller output.
With control of:
 Heat exchanger (liquid connected, plate or rotating) or mixing dampers.
 Heating coil: Water with or without frost protection or electric with high temperature limit
switch.
 Cooling: Water or DX cooling in up to 3 steps.
 Circulation pumps heating, cooling, exchanger.
Fan control
 1- or 2-speed supply air 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) or opposite function (pressure controlled extract air fan with slave
connected supply air fan, output dependent or flow dependent).
Humidity control
It is possible to use either humidification or dehumidification, or to use combined humidification
and dehumidification.
Timer control
For starting and stopping the unit, annual clock function. Up to 5 timer outputs for control of
external functions such as lighting, doorlocks etc.