92
Reheat mode
In Reheat mode the air is initially cooled and dehumidified, and is
subsequently reheated. The heat exchanger for heat pump opera-
tion makes the heat absorbed by the refrigerant while cooling the
air available to the cabin.
If required, the system can also access the waste heat from the
electric driveline via the heat exchanger for the hybrid battery. This
operating mode avoids windscreen fogging.
649_039
Filling valve, service connection
Low-pressure side
Filling valve, service connection
High-pressure side
Valve block
Internal heat exchanger
High pressure sender
G65
Electrical AC compressor
V470
Condenser upstream of
main radiator
Heat exchanger
for heat pump operation
High-voltage heater
(PTC)
Z115
Evaporator
Heat exchanger in air conditioner
for cabin heating
Heat exchanger for
hybrid battery
(chiller)
Refrigerant expansion valve 1
N636
Thermal
expansion valve
Coolant
temperature
sensor 1
G902
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