Bosch REG 73-1 - 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

INSTALLATION
- 5 -
2 - ELECTRICAL CONNECTIONS - THRI/THI/THISION BOILERS
- Remove the shunt (4) from the connector (2),
- Connect the QAA 73 sensor (1) to the
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
t
he X10-02 terminal.
For a double circuit:
- The shunt and its connector (3) remain in
pl
ace.
- 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
co
nnector (3).
X10-01 X10-02
2
1
3
4
1122
LMU
6 720 812 406_02.1GX
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
2.1.2 - Setting the QAA 73
For the QAA 73 setting, refer to the technical
instructions of the boiler.
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.
!
After using the QAA 73 to modify
or read the setting of each LMU ma-
nagement unit:
- disconnect the QAA 73 from
co
nnector (2),
- reposition the shunt (4) on the
con
nector (2) then connect it to
the X10-01 terminal,
- reposition the connector (3) on
the X10-02 termi
nal.