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Building Technologies Basic documentation LMV37.4... CC1P7546en
HVAC Products 3 Type summary 01.12.2009
2.3 General
The burner management system is operated and parameterized either via the AZL2…
display and operating unit or with the help of the PC tool. The AZL2… with LCD and
menu-driven operation facilitates straightforward use and targeted diagnostics. When
making diagnostics, the display shows operating states, the type of error and the point in
time the error occurred. Passwords protect the different parameter levels of the burner /
boiler manufacturer and heating engineer against unauthorized access. There is also a
COM port which can be accessed from a superposed system, such as a building auto-
mation and control system (BACS). A PC with ACS410 software can be connected via
the BCI and OCI410… interface. Among other things, the ACS410 software affords con-
venient readout of settings and operating states, parameterization of the LMV37.4...,
and trend recordings. The burner / boiler manufacturer can select from different types of
fuel trains and make use of a wide choice of individual parameter settings (program
times, configuration of inputs / outputs, etc.), enabling him to make optimum adaptations
to the relevant application. The actuators are driven by stepper motors and can be posi-
tioned with high resolution. Specific features and actuator settings are defined by the
LMV37.4... basic unit.
3 Type summary
Microprocessor-based basic unit for single-fuel burners of any capacity, electronic air-
fuel ratio control, up to 2 actuators, integrated gas valve proving system
Product no. Mains voltage Parameter set Product no. of flame detector
LMV37.400A1 AC 120 V Europe QRA2… / QRA4.U / QRA10… / QRB… / ION
LMV37.400A2 AC 230 V Europe QRA2… / QRA4.U / QRA10… / QRB… / QRC… / ION
LMV37.420A1 AC 120 V North America QRA4.U / QRB... / ION
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