Chery A15 / 480 LHD model. Instruction - page 2

4. Control system The control system mainly consist of the electrical component, vacuum
hose and control mechanism. On one side, it is available to control the temperature and
pressure of refrigeration and heating system, and, on the other side, it is also used to control
the temperature of air inside the vehicle, the blowing rate and direction.

5. Air purification system The air purification system mainly indicates the dust filter,
which is used to filter the outside air inhaled, and continuously discharge the vitiated air
generated inside the vehicle to make the air inside the vehicle clean and hygienic.

Air-Conditioner Compressor

Air-Conditi
on Harness

Evaporator Assembly

REFILLING OF REFRIGERANT AND REFRIGERANT OIL

Caution:

· If there are some moist materials or other
foreign

materials

circulating

in

the

refrigeration

system,

the

cooling

performance of the refrigeration system will
considerably decrease and generate the
abnormal noise. So, after any refrigeration
and circulation part is removed, the
openings shall be immediately plugged to
avoid the entrance of moist materials or
other foreign materials.

· If the service reservoir is used to refill the
refrigerant, it is very dangerous to open the
valve located at engine high pressure side.
During the operation, the pressure inside the
service reservoir will rise, which may cause
the explosion of the reservoir, what’s more,
the metal fragment from explosion and the
refrigerant sputtered will be serious harmful
to the operators. Thus, it is recommended to
pay more attention to the close of the
high-pressure-side valve during the course
of engine operation.

Caution:

· Take care not to exceed the starndard
value(s)

specified

in

the

technical

specification during refilling the

refrigerant

into the refrigeration system. If exceeding
the standard values, it will considerably
reduce the efficiency of the A/C system, and
even damage the refrigerant recirculation
parts.

· In accordance with the regulation, the
refrigerant shall be refilled from the
high-pressure side at all time. If it is refilled
from the low-pressure side, the valve leaf of
A/C compressor will loosen and give off the
abnormal noise.

1-Refrigerant tank

2-Unlock valve

3-Low-pressure manual valve

4-High-pressure manual valve

5-Low-pressure gauge

6-High-pressure gauge

7-Connect to low-pressure service valve hose

8-Connect to high-pressure service valve hose

9-A/C compressor

Charging the refrigerant

High
pressur
e

Low
pressur
e

High
pressur
e

Low
pressur
e

1. Precautions for Refrigerant Concerned

(1) To avoid the refrigerant contacting with

your skin, wear rubber gloves and safety
goggles while handling the refrigerant.

(2) Handle the refrigerant concerned at a well

ventilated location. Since the refrigerant is
a colorless gas at room temperature and its
density is greater than that of air, the
refrigerant will deposit in the maintenance
location, which may easily cause the
maintenance personnel choked.

(3) Do not allow the refrigerant to contact with

fire. Otherwise it may generate the toxic
gas.

(4) The O-ring can be applied once only.

(5) Chery

model-A15LHD

adopts

the

refrigerant

R134a

which

cannot

be

interchanged with R12. Also compressor
oils cannot be mixed. During the course of
handling, any tool that has touched certain
kind of refrigerant must not touch any other
kind of refrigerant.

2

. Method to Refill Refrigerant

If the 400g tanked refrigerant is required, a
refrigerant tank unlock valve shall be applied
(shown in the figure). The operation
procedures are as follows:

(1) Before the unlock valve is installed on the

refrigerant tank, turn the butterfly handle 1
in the counterclockwise direction till the
needle valve returns back completely.

(2) Turn the plate-shaped nut 3 in the

counterclockwise direction to lift it up to
the highest position, and then tighten the
valve and the dummy club at the center of
refrigerant tank.

(3) Install the intermediate filling hose of

manifold pressure gauge on the joint 5, and
then turn the plate-shaped nut in the

Refrigerant Tank Unlock Valve

1-Butterfly Handle

2-Refrigerant Tank Refilling Valve

3-Plate-shaped Nut

4- Needle Valve

5-Refilling Valve Joint

clockwise direction and tighten it by hand
as possible.

(4) Turn the butterfly handle 1 in the

clockwise direction to make the valve
needle 4 in its front end punch a small hole
in the dummy club of refrigerant tank.

(5) Turn the butterfly handle 1 in the

counterclockwise direction, which the
refrigerant will flow into the manifold
pressure gauge along the charging hose.

(6) Then turn the butterfly handle 1 in the

clockwise direction to the lowest position,
and it can close down the refrigerant tank
again. However, do not detach the unlock
valve, otherwise the refrigerant inside the
tank will leak out.


3. Refrigerant Refilling Procedures

(1) Connect the manifold pressure gauge to

the refrigerant tank, shown in the picture
below.

(2) Unscrew the handle of unlock valve 2 in

the counterclockwise direction to enable
the refrigerant to enter the intermediate
charging hose. In this case, do not open the
handle valves in the both sides.

(3) Unscrew the nuts of intermediate hose of

manifold pressure gauge, and then tighten
the nuts of intermediate hose after the air
inside the intermediate hose are drained
when you see the white refrigerant gas
overflow and heard the “fizzle” sound.

(4) Turn on the high-pressure manual valve 4,

shown in the figure below, stand the
refrigerant tank 1 upside down so as to let
the refrigerant in liquid-state charge into
the refrigeration system. In this case, do
not switch on the A/C unit to prevent the
refrigerant from returning back to the tank.

LOW-PRESSURE
SEVICE VALVE

RECYCLING

RECEIVER

HIGH-PRESSURE

SEVICE VALVE

REFRIGERATION DEVICE

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