Siemens Climatix S300 HRV - Zero Pressure Calibration

Remark:
Above information is available for all ebm-papst Modbus fans with interface version
>=5.0.
Error and warning codes are shown as decimal value, for example error code ‘17’.
They must be converted into a bit string, for example ‘0000000000010001’.
According to EBM Papst documentation, this means FB (General fan fault) and
PHA (Phase error).
When using a Modbus fan, both fans must be Modbus fans.
6.2.6 Zero pressure calibration
● Both devices (POS9.., QBM97..) have integrated pressure sensors and
therefore also inbuilt zero-pressure-calibration mechanisms.
● To perform calibration, all pressure hoses must be disconnected and exposed
to the same ambient pressure.
● The calibration process can be manually initiated by activating the calibration
parameter.
Available parameters
Parameter BACnetobject R/RW Note
Zero pressure calibration trigger POS9 ZePClbTrgPos9
MVAL, 628
RW 1: Ready
2: Trigger (initiates calibration)
Zero pressure calibration trigger QBM #1 ZePClbTrgQbm
MVAL, 638
RW 1: Ready
2: Trigger (initiates calibration)
Zero pressure calibration trigger QBM #2 ZePClbTrgQbm(2)
MVAL, 790
RW 1: Ready
2: Trigger (initiates calibration)
Engineering of communicative devices
Modbus components
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