Bosch Climate 5000 Series Service Manual page 45

Dial-switch ENC1: The indoor PCB is universal designed for whole series units
from 18K to 55K.
This ENC1 setting will tell the main program what size the unit is.
Usually there is glue on it because the switch position cannot be changed
at random unless you want to use this PCB as a spare part to use in
another unit. Then you have to select the right position to match the size
of the unit.
"53" means 5.3kW (18K),"105" means 10.5kW (36K), and so on.
Figure 60
Bosch Climate 5000 Series Ducted Type (Medium & High Static) Air Conditioner / Heat Pump (11.2022)
Service Manual
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