HVAC
9
the air flows over the cold evaporator fins. This cold
dehumidified air is then mixed with the hot air (
if re-
quired)
to attain the temperature selected by the
occupant; the mixing control is done by the heater
door opening.
REAR AC
In this vehicle a separate AC unit is installed for rear
seat occupants. The refrigerant from the condenser
is split into 2 paths, one to the front HVAC unit and
other to the rear AC unit. The rear AC unit similar to
front AC unit consisting of a TXV valve, an evapora-
tor and a blower. It has ducts to the second and third
row seats.
NOTE
The rear seat occupants only have a separate AC
unit but no separate Heater unit.
Rear AC unit is an auxiliary system, hence it can-
not work when the front HVAC is turned OFF.




