NANO AMT

HVAC

835

HVAC

Refrigerant flow through A/CSystem is as follows:

(1) Compressor draws

Low pressure, heat laden

vapour

refrigerant from the Evaporator. (Suction

port - large line), and compresses the vapour.

(2)

High pressure, heat laden vapour

from the

compressor goes into the Condenser. The vapour

gives up its latent heat to the cooler outside air

through the Condenser and changes back to

liquid

due to condensation. Now it is a

high

pressure liquid.

(3) The

high pressure liquid

now encounters an

orifice (small opening) either an Orifice tube or

Expansion Valve. When the liquid passes through

this opening, its pressure is reduced and it gets

very cold.

(4) The

lowpressure sub cooled liquid

absorbs heat

from the cabin through the evaporator and the liquid

inside turns into

vapour

(like water absorbing heat

and turning to steam)

(5) This

Low pressure, heat laden vapour

from the

evaporator is now drawn into the compressor and

cycle continues to flow.

A -

Air direction mode selection knob

B -

Blower speed selection knob

C -

Temperature control knob

D -

AC ON / OFF switch

E -

Air recirculation / Fresh air lever

Fresh

Recirculation