CITROEN CX Series - Page 358

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II. OF'ERATING
PRINCIPLE
The refrigerating
system
has
faur main
camponents
-
the
compressor
(4)
-
the
condenser (7)
-
the pressure
release
valve (3)
-
the evaporator
(1)
The
refrigerating
fluid
usedis
the
P12
L
64.1 a
1
E==
=1EL==========
Compressor
(4)
Manufacturer
ASPERA
FRIGO,
type HG
700
(
or
SANKYO type
SD
508.
on
EMBÄUT
CLIMAT
ASPERA
twin-cylinder
or
Fitted
anta the gearbox
by means of a
mounting bracket
SANKYO
five-cylinder
rotary
The
campressor
circulates
the refrigerating
fluid draws
in
the fluid
which is
in
a low-pressure
vapour state.
compresses
it
(
which
increases
its
temperature
)
and
expels
it
inta
the
condenser.
The
condenser
is
driven by the engine
via the water pump
by
twa
trapezaidal beits
(
ASPERA
)
or one trapezoidal
belt
(
SANKYO
).
An
electro-magnetic
ciutch is fitted
to
the
compressor pulley.
Its operation
controlled
by a switch on the
centre
console
is intermittent due
ta
the
presence
of an ambient
temperciture
thermostat
(2)
which
is not
adjustable
and
which senses
the temperature
near
the evaporator
cooling
fins.
In
case
of
excessive
pressure
in
the
return
circuit,
a pressure
switch (6) opens the
supply
circuit to the
compressar
du tch.
Condenser (7)
-
Monufacturer
CHAUSSON
It aliows the fluid
to condense
and
to
release
its latent heat
to
the
outside air
circulating around the
fins, It is
secured
to the
front
LH.
side of
the engine
cooling radiator.
At the
condenser
outlet,
the
fluid
is in
the
high-
pressure
liquid state. The fluid
fiows through the tank (5)
(
which contains a dehydrating
filter
)
and
flaws
towards the pressure
release
valve.
A
5-blade
electric
fan accelerates
the
circulation of
air
around the
condenser
fins.
De-watering
tank.(5)
-
Manufacturer
SINGER
It contains a dehydrating
filter
element,
and
is fitted
with a visible level
indicator,
which aliows the
amount and
state of the fluid
to be checked,
anda
high-pressure
switch
(6).
The
de-watering
tank
is fitted
on the front panel
by means
of
a
mounting bracket
at the rear
L.H.
side of
the
engine cooling radiator.
Pressure-release
valve (3)
it
is
incorporated
in
the heater
unit and regulates
the
output of fluid towards the
evaporator.
Evaporator
(1)
Manufacturer
SOFICA
The air
flowing
through the evaporator
releases
its
calories
which
will
couse
the
iow
pressure
fluid
to
be
transformed
inta
vapour.
It is incorparated in
the
heater unit,
upstream
from
the
heater radiator.
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