HEXA

HVAC

C. REAR AC UNIT

The rear AC unit is similar to the front HVAC unit,

only difference being that there is no Heater Coil. It is

mounted in the right D pillar.

It consists of a Blower, Evaporator Coil and

TXVSince the TXV blocks the flow of refrigerant

when there is no load on evaporator (

for working of

TXV refer the previous section ‘Evaporator Coil and

TXV)

, it eliminates the need of a separate shut-off

Valve.

As this is an auxiliary unit, it cannot operate inde-

pendent of front HVAC. For rear AC to operate front

HVAC should be turned ON.

D. COMPRESSOR

SPECIFICATION

MODEL

QS90

DISPLACEMENT

VOL.

89 cm

/ rev.

LUBRICANT

SX10 or Equivalent

QUANTITY

+20

The Compressor used in this vehicle is scroll type

compressor.

This compressor has two identical scrolls arranged

at 180º around a offset center; one of them is fixed

(fixed scroll) and the other (orbit scroll) is turned at a

constant attitude, so that the space made between

the scrolls symmetrically around the rotating shaft

moves from outside toward the center while reducing

its volume; this is the principle of compression.