Bosch CANbus LCD Mode D'emploi page 11

2 Room temperature sensor CANbus LCD
CAUTION: Do not mix up the 12V and
CANbus connections!
The processors are destroyed if 12V is
connected to the CANbus.
B Check that the four cables are connected
to the contactors as shown in (Fig 18).
NOTICE: The room temperature sensor is
normally at the end of the CANbus and must
therefore be terminated. Termination
settings performed as shown in (Fig 19).
For a description of the functions and
settings in the control unit, see installation
manual for the heat pump.
Installation location requirements:
• If possible, interior wall without drafts or heat
radiation.
• Unimpeded circulation of room air under room sensor
(dotted area in image 17 must be kept clear).
0,3 m
T5
0,3 m
Fig. 17 Recommended installation location for room
sensor
B Connect the room temperature sensor to the
terminals correctly. The +12V, CANH, CANL and GND
terminals (Fig. 18) must be connected to the
corresponding terminals on the circuit board (31-34
or 35-38). See External connections wiring diagram in
the installation instructions for the heat pump.
For a description of the CANbus LCD, see installation
instructions for the heat pump.
6 720 648 080 (2011/03)
Room temperature sensor CANbus LCD
4
3
Fig. 18 Connections
1 CANH
2 CANL
3 +12V
4 GND
12 3 4 5 6 7
1
2
Fig. 19 Terminating CANbus LCD
1 Lightly press the microswitch
2 Set circuit address chosen with the room sensor wheel
3 See LCD display for choice of circuit address
4 Press to switch CANbus termination setting on off
ON
Fig. 20 Terminating CANbus LCD
Termination settings are used to mark the start and end
of a CANbus loop. Ensure that the correct circuit board
is terminated and that all other switches are in the
opposite position.
1
2
6 720 648 080-01.1I
12 3 4 5 6 7
3 4
6 720 648 080-06.1I
A B
OFF T5
T5
6 720 648 080-07.1I
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