Data Sheet for Product

Siemens A6V11478118_en_c

Smart Infrastructure 2021-01-20

Accessory

Connection kits

Type/ASN Stock number/SSN Designation MOQ

AQB9120/101A S55843-Z120-A101 Connection kit for ventilation duct,

two metal nipples 90° angled, including one tube 2 m long

AQB9220/101A S55843-Z220-A101 Connection kit for ventilation duct,

two plastic nipples, straight, including one tube 2 m long

Field of application

Focus segment

● Air handling units (AHU), with communication between controller and field devices and

connected to cloud enabling plant digitalization.

● Support of Ecodesign directive ErP 2016/2018 through the use of bus-compatible

sensors for monitoring filters, including cloud visualization

Typical use

The QBM97.. Modbus air pressure sensor and I/O extension is used in ventilation systems

and air handling units (AHU):

● to measure and monitor pressure in air ducts and over filters and fans

● on the supply and extract air side

The QBM97.. is ideally suited for a multitude of tasks in the HVAC industry:

● measures relative and differential pressure and flow of air and non-aggressive gases

● available with one or two differential pressure sensors

● allows the observation of pressure or volumetric flow at two individual points in the

system

Topology

AHU topology with Modbus field devices and sensors

● The following digital AHU topology illustrates an example for using the QBM97 Modbus

air pressure sensor in an AHU application with peripheral bus for Modbus field devices

and sensors.

Modbus

VSD

QBM97 QBM97

VSD