BMW I01 Product Information page 145

I01￿High-voltage￿Components
8.￿Electric￿Heating
Index
1
2
3
4
5
The￿maximum￿electrical￿power￿of￿the￿electric￿heating￿is￿5.5 kW￿(280 V￿x￿20 A).￿The￿electric￿heating￿is
done￿by￿three￿heater￿coils,￿each￿with￿a￿power￿of￿about￿0.75 kW,￿1.5 kW￿and￿2.25 kW.￿The￿switching
of￿the￿heater￿coils￿(individually￿or￿together)￿is￿effected￿within￿the￿electric￿heating￿using￿an￿electronic
switch￿(Power￿MOSFET).
Explanation
Connection￿for￿coolant￿supply￿from￿the￿electrical￿12 V￿coolant￿pump￿or￿with
corresponding￿optional￿equipment￿from￿the￿heat￿pump￿capacitor
Connection￿for￿coolant￿return￿(to￿the￿heat￿exchanger￿for￿the￿passenger
compartment)
Sensor￿for￿temperature￿of￿the￿coolant￿at￿the￿output￿of￿the￿electric￿heating
High-voltage￿connection
Three￿heater￿coils
139