12
SYSTEM OVERVIEW
inVENTer Connect controller platform | Operating instructions
SK19-Connect switching contact
Figure 4: SK19-Connect switching contact
The switching contact is a radio interface and is used to integrate safety devices,
e.g. a 4 Pa pressure sensor, into the ventilation system while simultaneously operating the
ventilation system with fireplaces.
WARNING:
For joint operation with fireplaces, safety measures must be taken to prevent a
negative pressure from developing in the building. The responsible chimney sweep and/or
building planner decides which measures need to be carried out.
If this interface is used in conjunction with an external pressure sensor (4 Pa pressure sensor),
the air pressure indoors is continuously monitored. As soon as this exceeds the safety-relevant
limit value, the sensor transmits this to the controller.
The system reacts as follows:
•
The controller switches off all ventilation units paired with it. The LED on the Easy Connect e16
controller flashes alternately RED and WHITE.
•
The closing flaps on the Connect inner covers remain open or are opened.
The LED on all Connect inner covers flashes alternately RED and GREEN.
•
The LED on the SK19-Connect switching contact flashes alternately RED and GREEN.
The function remains active until the air pressure drops below the safety-relevant limit again. Then
all of the ventilation units connected to the controller switch back to their originally set operating
mode.
If the connection between the switching contact and the controller is interrupted, the system reacts
in the same way as when the safety-relevant limit of the air pressure is exceeded.
Sensor hierarchy
TIP:
Several sensors that perform the same task in a zone can be paired with the controller. The
controller then arranges these according to the following sensor hierarchy:
Sensor hierarchy
Sensor type
Component example
Priority 1
Sensor - mains connection
CS2-Connect CO2 sensor
Priority 2
Sensor - battery-operated
FTS19-Connect Indoor
Priority 3
Sensor - controller-integrated
Easy Connect e16
Table 1: Sensor hierarchy
1 Housing with sensor electronics
2 LED (multi-coloured)
3 Button
1
2
3