Xpelair Xcell 400 QV, Installation And Operating Instructions Manual

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7.6 MVHR automatic control – connection PCB (Xcell 400 QVI model only)
German translations from the PCB:
- Rauchmelder – Smoke Detector
- Feuchtesensor – Humidity Sensor
- CO
2
Sensor – CO
2
Sensor
- Eingänge 24V – 24V DC Inputs
- EIN – Input
- Ausgänge 24V – 24V DC Outputs
- AUS – Output
The Connection PCB is situated under a metal Cover Plate on top of the MVHR.
Remove the four fixing screws to remove the Cover Plate.
Ensure all cables are fitted to the PCB via the rubber grommets also located on top of the MVHR.
When all connections have been made, replace the Cover Plate and secure with the four fixing screws provided.
Automatic controllers and sensors are powered with an input voltage of 24V DC, see the relevant wiring diagrams
below for the automatic controller(s) to be connected to the MVHR.
24V DC outputs are available for bussed control (e.g. BMS systems):
Output 0 (AUS_0) - Operating display
Output 1 (AUS_1) - Filter display
Output 2 (AUS_2) - Fan fault message
Output 3 (AUS_3) - Automatic defrost protection for living areas
Output 4 (AUS_4) - Smoke detector monitoring
Note:
1. The link wire between RM and RM must only be removed if required. Refer to the relevant section for the any
other controllers connected to the PCB for more details.
2. The link wire between EIN_0 and EIN_1 must only be removed if required. Refer to the relevant section for the
any other controllers connected to the PCB for more details.