CIAT AirControl CTA Manuel De Régulation page 81

Maximum flow
rate
Rated flow
1.5.17 Adiabatic cooling
The aim is to introduce fresh air into the room in question without using the unit's cooling coil during a cooling request.
The action will be to cool the return air flow, which is hot, from a dual-flow unit equipped with a rotary or plate heat exchanger,
by increasing its humidity level via a trickle humidifier.
This will allow the fresh air going through the heat recovery unit to be refreshed.
This humidifier will be controlled by the relay output NO17 if:
- The function is requested
- The unit comprises a heat recovery unit
- The unit is operating
- There is a supply air cooling requirement
- The fresh air temperature is greater than the supply air cooling setpoint.
1.5.18 The fault relays
One relay per fault summary level is provided:
- "Maintenance" fault summary
- "Danger" fault summary
"Maintenance" faults are alarms which only send information to notify the operator. They can be validated by pressing the key for
3 seconds if they have disappeared.
The "Danger" faults, which are of a higher level, are alarms which send information to notify the operator, but also start a process
to secure the unit. They can be validated by pressing and holding the
button for 3 seconds if they are no longer present, and once the unit is switched Off.
100
0
EN - 15
Need for
variation (%)
EN