Bosch BMS-WT2-XXC - Wiring Connections

Installation Instructions
Climate 5000 Series Gen 3 Wired Wall Thermostat (02.2022)
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6.2 Wiring
For Wall Mounted Indoor Units
Install the Adapter Board and the Display Board on the Wall Mounted indoor unit.
Figure 5
Adapter board
4-core shielding wire on the controller
The connection cable A
X
Y
E
5V
White
Yellow
Brown
Red
The connection cable B
(To connect to the
adapter board port
CN41/CN42)
CN40
Display board
CN1
The connection
cable C
CN18
Main board
CN32
CN43
The connection cable D