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3.2
Assembly of the plinth
The plinth [2] can be mounted on the wall or on a recessed
junction box.
The screw holes are arranged in the same manner as with older
Bosch control units. This allows boreholes from previous
installations to be used.
Ø 6 mm
Ø 6 mm
Ø 3,5 mm
2
Fig. 5
3.3
Electric connection
Power is supplied to the user interface via the BUS cable. The
leads may be connected to either pole.
If the maximum total length of the BUS connections between all
BUS-participants is exceeded or the BUS system has a ring
structure, commissioning of the system is not possible.
Maximum total length of BUS connections:
2
•
100 m with 0.50 mm
2
•
300 m with 1.50 mm
▶ If several BUS participants are installed:
– Maintain a minimum clearance of 100 mm between
each of the BUS participants
– Connect BUS participants selectively serially or as star
pattern.
▶ To avoid inductive interference: Make sure all low-voltage
cables are routed separately from supply voltage carrying
cables (min. clearance 100 mm).
▶ In the case of external inductive interferences (e.g. from
photovoltaic systems), use shielded cables (e.g. LiYCY)
and earth the shield on one side. |Connect the shield to the
building's earthing system, e.g. to a free earth conductor
terminal or water pipes, and not to the connecting terminal
for earth leads in the module.
RT 800 – 6721838942 (2023/01)
Ø 6 0
2
0010038008-001
conductor cross-section
conductor cross-section.
▶ Establish a BUS connection to the heat source.
Ø 3,5 mm
2
Fig. 6
Connection of the control unit to a heat source
[2] Wall plinth
3.4
Hooking in or removing the user interface
Hooking in the control unit
1. Hook in the control unit at the top
2. Click the control unit in at the bottom.
1.
Fig. 7
Hooking in the control unit
2
<100 m: 0,5 mm
2
100 – 300 m: 1,5 mm
1.
Ü b e rs ic h
t
1
, 1 0 .0 8 .2
D ie n st ag
1 4 : 5 0
6 0 %
2 0 °
Installation
BUS
2
1
0010038013-001
2.
0010041892-001
5
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