Manual Corrigo E Ventilation, revision M
Chapter 16
Configuration
78
Rotating exchanger
Liquid connected exchanger
Mixing dampers
Not connected
Damper limiting for minimum fresh air percentage is settable 0…100%.
In the submenu parameters for outdoor temperature control of exchanger can be set.
Outd. temp control of
exch: Off
Outd. temp start: 10°C
Diff. stop: 0.2°C
For detailed description of exchanger alternatives, see section 5.1.3 Heat exchanger.
16.8 Chiller
Cooling
Water
Select chiller type: Water, DX, DX with exchanger control or Not used.
For detailed description of DX-cooling, se section 5.1.4 Step controllers.
If DX cooling has been configured, there are submenus for setting of certain operation parameters.
Min limit lowering
If DX cooling is used in combination with room or extract air control, the supply air temperature
minimum limit value can be lowered to give smoother (more continuous) running of the chillers.
The set lowering of the limit value is activated when the DX cooling is running.
Lowering of min
limit for supply air
control on active
DX cooling: 5.0°C
This parameter is also used for setting the lowering of the cooling setpoint when running DX
cooling with exchanger control.
See 5.1.4.
Blocking the DX cooling at low outdoor temp
Outdoor temperature dependent blocking of DX cooling is individually settable for each cooling
step. If the outdoor temperature is below the set value, it is not possible to activate the cooling step.
The function has a 1K hysteresis, i.e. if a cooling step is blocked, it can only be activated again
when the outdoor temperature has risen to 1K above the set value.
Block DX-cooling,
step1, at outdoor temp.
lower than 13.0 °C
Blocking of DX cooling on cooling pump alarm
DX cooling can be blocked on activation of the cooling pump alarm.
