User Manual

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Building Technologies Division CC1N7491en
18.07.2018
Parameterization
Parameterization by QAA73 (service tool):
Users Installer / service
Features Changing various LMU34 parameters
Parameter types Non-safety-related
Parameter levels Heating engineer
Connection of QAA73 To LMU34
The LMU34 can be configured for different applications by setting parameters via the
QAA73. To make this procedure easy for the installer, 16 sets of parameters have been
defined, every set consisting of 9 parameters, and one set for each application. The
installer will only select the particular parameter set he needs. He cannot select single
parameters.
Only the manufacturer of the LMU34 can define these parameter fields.
The boiler manufacturer is able to set the parameters via OCI425 / ACS425.