Corrigo ventilation 3.4 manu

104 Chapter 17 Configuration Manual Corrigo Ventilation, revision R
Retardation time
1/1-1/2-speed
10 s
17.30.3 Heating at start-up and high speed blocking
At outdoor temperatures below the set value, the heating output will be forced to 100% before start-
up.
Two speed fans and pressure controlled fans can be blocked from using high speed at outdoor
temperatures lower than the set value. This function should not be combined with the function
”Outdoor compensation of pressure setpoint”. See the section Demand control.
Both functions need an outdoor temperature sensor.
Outd temp for
heat start: 3.0°C
Blocking of
1/1-speed: -10°C
17.30.4 Start delay exchanger
Start delay exch
0 s
17.30.5 Exchanger to 100% at start and alarm delay at start
To minimise the risk of freeze-up problems, the heat exchanger can be forced to maximum capacity
for the set time at start-up.
To eliminate the risk of, for example, fan pressure alarms at start-up, all alarm functions can be
suppressed for the set time.
Exch 100% at start
2 s
Alarm delay at start
60 s
For the function ”Slave control of the extract air fan”, the fan will start directly at 50 % after the
start delay, in order for the heating of the exchanger to work for this operating mode. When the
supply air fan starts, the extract air fan will be slave controlled by the flow in the supply air duct.
17.30.6 Split controller signal
Splits the controller output (Heating Controller Output signal = HCOut) between the analogue
temperature control output signals Y1, Y2 and Y3 for "Heating", "Heat exchanger" and "Cooling",
"Y4" and "Y5".
To create a neutral zone, leave a percentage gap between sequences.
The set P-band for the supply air controller is for the whole controller signal. This means that the P-
band for each sequence is proportionate to the split percentage values given to sequences.
Example:
P-band for the supply air controller is set to 33K. The HCOut is set so that cooling gets 0…30 % =
30 %, the exchanger gets 32…50 % = 18 % and the heater gets 54…100 % = 46 %. The individual
P-bands will then be:
Chiller: 30 % of 33°C = 10°C
Exchanger: 18 % of 33°C = 6°C
Heating: 46 % of 33°C = 15°C