Electrical Connections - Thri/Thi/Thision Boilers; Using And Setting The Qaa 73 For The Boilers Of Type 0.9-9/2-13/2-17/5-25/10-35/10-50; Using And Setting The Qaa 73 For The Boilers Of Type 10-100 - Bosch REG 73-1 Installation Instructions Manual

2 - ELECTRICAL CONNECTIONS - THRI/THI/THISION BOILERS

- Remove the shunt (4) from the connector (2),
- Connect the QAA 73 sensor (1) to
connector (2) and place it on the X10-01
terminal of the LMU while making sure the
terminals connections are correct.
For a single circuit:
- Remove the shunt and its connector (3) from
the X10-02 terminal.
For a double circuit:
- The shunt and its connector (3) remain in
place.
- In cases where a room thermostat is instal-
led, it will be connected to the X10-02 termi-
nal after removing the shunt from the
connector (3).
2.1 - Using and setting the QAA 73 for the boilers of type 0.9-9/2-13/2-17/5-25/10-35/
10-50
2.1.1 - Using the QAA 73
For the QAA 73 using, refer to the "instructions"
leaflet supplied with the QAA 73 sensor

2.2 - Using and setting the QAA 73 for the boilers of type 10-100

For the setting and using of the QAA 73, refer to
the technical instructions of the boiler.
the
1
2.1.2 - Setting the QAA 73
For the QAA 73 setting, refer to the technical
instructions of the boiler.
!
- 5 -
LMU
After using the QAA 73 to modify
or read the setting of each LMU ma-
nagement unit:
- disconnect the QAA 73 from
connector (2),
- reposition the shunt (4) on the
connector (2) then connect it to
the X10-01 terminal,
- reposition the connector (3) on
the X10-02 terminal.
INSTALLATION
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4
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