Subaru 2002 Impreza Service Manual page 366

HEATER SYSTEM
HVAC Svstem (Heater. Ventilator and
NCI
1.
Heater
System
A: GENERAL
0
The Impreza's HVAC system uses an integral air conditioning unit with thin-wall, high-perfor-
mance heater core at the front and evaporator core at the rear. Being compact in size, this unit
enables providing sufficient front passenger's legroom while ensuring a high air-distribution effi-
ciency by minimizing air flow resistance in all air passages. Overall, the system can create com-
fortable interior air conditions quietly and in all seasons by its excellent heating, cooling, ventilat-
ing, and defrosting performances.
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There are three ventilation grilles in the dashboard; a trapezoidal grille at the center and round
grilles at both sides. The side grilles are rotatable for air flow direction adjustments.
0
To ensure adequate ventilation, large-size air outlets are provided behind the side portions of
the rear bumper where high-level vacuums are generated during driving.
AC-2