AC Central Controller

This Control represents an outdoor unit combining several AC Control indoor units.
Depending on the requirements of the assigned AC Unit Controllers, it is decided whether the Heating or Cooling mode is active.
AC Unit Controllers with opposite requirements will be paused to avoid conflicts on the outdoor unit.

Table des matières


Entrées

Abréviation Résumé Description Unité Valeurs
ϑo Outdoor Temperature If this input is not connected, the System Variable "Outdoor Temperature" is used. If this value is not available, the value -1000 is displayed. °
Off Off Impulsion : les sorties sont réinitialisées/désactivées.
On : le bloc est verrouillé.
Entrée dominante.
Le nom du capteur connecté est utilisé dans l'interface utilisateur.
- 0/1
Ec Excess cooling Surplus or cheap cooling energy available.
In cooling mode, Intelligent Room Controllers will overcool or allow premature start of cooling.
- 0/1
Eh Excess heating Surplus or cheap heating energy available.
In heating mode, Intelligent Room Controllers will overheat or allow premature start of heating.
- 0/1




Sorties

Abréviation Résumé Description Valeurs
H Heating Device unit is in heating mode 0/1
C Cooling Device unis is in cooling mode 0/1
AC API Connector Connecteur intélligent basé sur l'API.
API Commands
-




Paramètres

Abréviation Résumé Description Unité Valeurs Valeur défaut
Mode Mode 0 = Device is turned off.
1 = Automatic changeover based on the AC Unit Control demands.
2 = heating only if there is sufficient demand.
3 = cooling only if there is sufficient demand.
- 0...3 -1
ϑLimH Temperature Limit Heating If the outdoor temperature is above (ϑLimH), the system will not switch to heating mode, even if there is a demand.
Ce paramètre est seulement visible dans certaines configurations.
° 18
ϑLimC Temperature Limit Cooling If the outdoor temperature is below (ϑLimC), the system will not switch to cooling mode, even if there is a demand.
Ce paramètre est seulement visible dans certaines configurations.
° 15
Otm Outdoor Temperature Mode If enabled, the average outdoor temperature of the last 48h, next 48h or the current temperature is used to select heating/cooling mode according to (ϑLimH) and (ϑLimC).
If the value is not available, this parameter has no effect.
0 = Disabled
1 = Average Outdoor Temperature of the past 48h
2 = Value of the System Variable 'Expected Average Outdoor Temperatur 48h'
3 = Current Outdoor Temperature
- 0...3 2




Propriétés

Résumé Description Valeur défaut
Configuration Add or remove AC Unit Controller function blocks -
Coût énergétique(Chauffage) Coût de l'approvisionnement énergétique. Les objets avec la configuration «coût élevé» ne sont utilisé par les blocs seulement si aucune source prioritaire n'est disponible -
Coût énergétique(Refroidissement) Coût de l'approvisionnement énergétique. Les objets avec la configuration «coût élevé» ne sont utilisé par les blocs seulement si aucune source prioritaire n'est disponible -




Decision heating / cooling process

The influencing factor for the decision is the sum of the requirements for all AC Unit Controllers in °m2 (Temperature difference Target / Actual Temperature * Room Size). Requirement types: heating, cooling... In Heating or Cooling only mode, operation is started when there is sufficient demand for the configured mode, otherwise the controller remains OFF.


Excess heating or cooling

To use inexpensive cooling or heating energy as efficiently as possible, a room can be „overcooled“ or „overheated“. This function is excellent, for example, when combined with the Energy Manager for optimizing self-consumption of solar power or with the Spot Price Optimizer.

With the inputs (Eh) and (Ec), the room controllers are informed that there is surplus/inexpensive energy available or that a specific mode would be favorable. The room controllers are then allowed to go into preparation mode before the scheduled time. If the room controls are already in Comfort mode, they are allowed to overheat or overcool to the average between the two comfort temperatures.