Unigas C85A - Inputs and Outputs

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Building Technologies Basic Documentation LMV5... CC1P7550en
HVAC Products 18 Addendum 4: LMV52... with O2 trim control and O2 module 11.12.2008
O2 module
In comparison with the LMV51... system, the extra components to be connected with
the LMV52… system are the O
2 module and the O2 sensor QGO... and, optionally, the
combustion air and flue gas temperature sensors. The O
2 module is to be connected to
the basic unit via the CAN bus. The O
2 module must be located in the vicinity of the
QGO... (< 10 m), aimed at keeping interference on the sensitive detector lines as low
as possible. For sensor heating, the O
2 module requires a separate mains connection
facility.
18.8.1 Inputs and outputs
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Achtung!
Schutzleiterverbindung zwischen Gehäuse-Oberteil
und Gehäuse-Unterteil herstellen.
Important!
Make protective earth connection between
the two housing sections.
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X89-02
T2.5 IEC 60127-2/I