ventilation system

Putting warning labels of "No touch, high voltage parts are under repairing"

Cautions for removing 12V battery

Cautions for auxiliary restraint system of airbag and safety belt pretension

Cautions for R-134a

Contamination of refrigerant

Normal precautions for refrigerant

Precautions for dye leakage inspection

Precautions for compressor lubricant

Precautions for electrical compressor maintenance

Preparation work

Lubricant refrigerant

Special tool

System introduction

Introduction

Components

Ventilation system layout

Air vent

Defrosting vent

Feet vent

Blower motor

Air conditioner filter

System

Ventilation system

Mixture rate of vent and air flow

Relation between switch position and throttle position

Dismantling and installation

Vent assembly

Air conditioning filter

Dismantling and assembly

Defrost air flue

Blow face air flue

 

 

 

 

 

 

 

 

 

 

 

 

 

 


Putting warning labels of "No touch, high voltage parts are under repairing"

Before repairing the high voltage parts, put a warning label of "No touch, high voltage parts are under repairing" at obvious position of the repaired vehicle to remind other personnel.

Cautions for removing 12V battery

Before removing the 12V battery, turn the key to “ON” gear and then to “LOCK” gear.

Reminder:

            The automatic charging function of the 12V battery may activate even if the key is at “LOCK” gear.

            When the key is turned from “ON” to “LOCK” gear the automatic charging function of the 12V battery will not activate.


Cautions for auxiliary restraint system of airbag and safety belt pretension

When the auxiliary restraint system of airbag and safety belt pretension is used together with the front seat belts, it can lower the damage to the driver and front-seat passenger during a collision. The auxiliary restraint system includes safety belts and airbag for driver and front-seat passenger. For the detailed information of auxiliary restraint system, please refer to section of “Airbag system” and “Seat belt”.

Warning:

In order to avoid any accident, do follow below tips:

            In order to avoid personnel injury or death caused by failure of the auxiliary restraint system or collision after the failure, all repair work can only be executed by authorized dealer of JAC.

            It may cause auxiliary restraint system accident and personnel injury if the auxiliary restraint system is not repaired by standard including dismantlement and installation. As for the method to remove the airbag module, you can refer to the section of “Airbag system”.

            Do not use electrical testing equipment to test any circuit of the auxiliary restraint system except for the operation specified in the repair manual. The wiring harness and connectors of the auxiliary restraint system are in yellow or orange.

Cautions for using power tools(pneumatic or electric) and hammer

            When the key is at “ON” gear, do not use power tools or hammer to operate near the airbag diagnostic sensor or other sensor of the airbag system area, otherwise the vibration may activate the sensor and cause the airbag to explode which may result in severe damage.

            When using the power tools or hammer, put the key at “LOCK” gear and pull out the negative pole of the 12V lead-acid battery and then wait for at least one minute.

Cautions for R-134a

Warning:

            The coolant R-12 and R-134a should not be mixed used, otherwise the electrical compressor may operate abnormally. In order to make sure the coolant R-134a being pure and recyclable, use a filling device to refill or reclaim the coolant according to the process specified on the coolant label.

            The R-134a air conditioner system requires specialized compressor lubricant. If non-specialized lubricant is used, it may cause the electrical compressor to work abnormally.

            It is prohibited to put the R-134a exposed in the air.

Warning:

            When dismantling the refrigerating circuit parts of the air conditioner, seal the refrigerating circuit connectors of each parts immediately in order to avoid the moisture in the air entering the refrigerating circuit.

            The sealing lid can only be removed when installing the refrigerating circuit parts of the air conditioner system and all components should be installed as soon as possible in order to avoid the moisture in the air entering the refrigerating circuit.

            The compressor lubricant should be sealed securely otherwise it will be useless when moisture absorbed.

            Do not inhale coolant or vaporous compressor lubricant otherwise it will cause discomfort to eyes, nose and throat. Use special tool to reclaim refrigerant. If there is leakage of the conditioner system, the repairing place should be in open air. Any other question about the safety and health of refrigerant, please refer to the manufacturer of the coolant and compressor lubricant.

            The compressor lubricant is forbidden to get in touch with polystyrene which may make it ineffective.


Contamination of refrigerant

If the refrigerant is not pure, please take below measures:

            Explain to consumer that it is forbidden to release refrigerant which will contaminate the atmosphere.

            Recycling polluted refrigerant may damage the recycling equipment and contaminate the coolant in the device.

            Use special refrigerant filling device to reclaim and refill the refrigerant and do not reclaim polluted refrigerant. The handling of refrigerant must abide by local rules and regulations. As for replacing the parts of cooling system, please refer to related chapter in maintenance manual.

Normal precautions for refrigerant

Warning:

            It is forbidden to release refrigerant in the air. Please use special recycling equipment  to release refrigerant.

            It is required to wear eyes and hand protective equipment during operation relating to refrigerant and air conditioner system.

            Do not keep refrigerant stored in more than 52℃ temperature.

            Do not use open flame to burn refrigerant tank. Put the refrigerant tank in warm water if heating is needed.

            Do not throw or press the refrigerant tank.

            Do keep the refrigerant away from open flame because it will release poisonous gas.

            Make sure the working place is with good ventilation otherwise the refrigerant will inhale oxygen in the air and cause personnel to suffocate.

            Do not make pressure or leakage test for repairing equipment of R-134a and air conditioner system filled with compressed air. The mixture of R-134a and air is combustible and it will cause personal injury or property loss in the event of burning. Please consult the refrigerant manufacturer for more safety information.

Precautions for dye leakage inspection

                    The air conditioner system does not contain fluorescent leakage detection dye.

                    Do not use fluorescent leakage detection dye in the air conditioner system.

Precautions for compressor lubricant

            It is required to use specialized compressor lubricant RL168H for the air conditioner system otherwise it will cause malfunction of the air conditioner system.

            Do not use recycling and filling device of normal lubricant refrigerant.

            The recycling and filling device of conventional lubricant refrigerant can only be used for the vehicle after thoroughly and clean rinse.

Precautions for electrical compressor maintenance

            The intake and exhaust vent of the compressor should be installed sealing-plug to avoid any entrance of air or impurities.

                    After the compressor is removed, its placed state must be same with the state when it is  installed on the vehicle.

                    The compressor needs to operate for more than two minutes after installation.


Preparation work

Lubricant refrigerant

名称

Usage

Remark

Refrigerant  R-134a

Used for refrigeration cycle

 

Compressor lubricant RL68H

Compressor lubricant

 

Special tool

Tool name

Picture

Tool name

Picture

Triple table

473e071ad2d44ef5ad2a72df637a52ca# #嵌入式对象5

High strength invisible lamp

35ee376d311946bf805dc3617a166bd1# #嵌入式对象3

Refillable recycling tank of  fifty pounds

d344b89832cf4119bfd4a43b0fa68e68# #嵌入式对象12

Microthermometer

0218cf4591bd41a684a2b21650ba8557# #嵌入式对象9

Lip shape sealing removal tool for air conditioning system

5455fdea86314d74b178a4439ce05da7# #嵌入式对象14

O-ring sealing removal tool

d749d750928945b09cab07408ad53d93# #嵌入式对象15

O-ring sealing installation tool

34ab0a2e7243456db25e269b52308fc1# #嵌入式对象17

Refrigerant recycling, regeneration and refilling system

8507cf3f5db24916b7d3c52bd1e2139c# #嵌入式对象20

Heating gun

Insulated gloves

Insulated shoes

Motor tool


System introduction

Introduction

Air conditioner ventilation system is composed of blower unit, heating unit and refrigeration unit.

The air conditioner filter is installed above the blower motor.

Components

Ventilation system layout

Serial number

Component name

Function

1

Ventilation opening

Left blow to face

Adjusting blowing direction of left facial side

2

Side defrost

Adjusting blowing direction of left and right window area

3

Front defrost

Adjusting blowing direction of front windshield glass

4

Right blow to face

Adjusting blowing direction of right facial side

5

Right blow to feet

Adjusting blowing direction of right area of feet

6

Right central blow to face

Adjusting blowing direction of central right facial area

7

Left central blow to face

Adjusting blowing direction of central left facial area

8

Left blow to feet

Adjusting blowing direction of left area of feet

9

Air duct assembly

Defrosting air duct

Guiding defrosting direction

10

Face blowing duct

Guiding face blowing direction

Air vent

Reversible vent with grating is installed at central position of ① and side dashboard of ②. The wind direction can be adjusted by reversing the vent.

Defrosting vent

The front defrosting vent of ① is used to remove the frost on the front windshield glass. The side defrosting vent of ② is used to remove the frost on the side window glass of driver and passenger.

Feet vent

Uniformly heating the front row seat feet area.

IMG_256  IMG_256   

Blower motor

The blower motor is installed at the right position of air conditioner central accessories.

Using three fixing bolt of ①for installation.

 

Air conditioner filter

            Air conditioning filter is composed of a filter lid and filter core.

            The type of air conditioning filter is particle which can remove foreign body and abnormal smell , filter dust, pollen and other dirt so as to main a comfortable interior environment.

            If the air conditioning filter is not replaced for a long time, it can lead to block of filter, increased noise of blower, reduction of air volume. The replacement cycle is 5000km to 12000km. For those areas with severe atmosphere pollution and poor road condition, it is required to check and replace it regularly.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

System

Ventilation system

Ventilation system is controlled by touch panel. For system control, please refer to chapter of “Air conditioner controlling system.

Mixture rate of vent and air flow

 

 

Module

Mixture rate of air volume(%)

Blow to face

Blow to feet

Defrost

Left side①

Left central⑦

Right central⑥

Right side④

Right side⑤

Left side⑧

Front defrost③

Side defrost②

22

21

28

29

17

10

16

17

20

20

6

6

33

33

17

5

5

5

25

26

31

8

5

5

73

17

Relation between switch position and throttle position

Defrosting function can be divided into front defrosting and rear defrosting. There are two specialized air vents in front defrosting. Rear defrosting is operated by heating wiring attached on the rear windshield glass.

 

Switch position

Throttle position

Defrost throttle

Blowing to face throttle

Blowing to feet throttle

Fresh air blow throttle

Mixed throttle

Module switch

Blow to face

I

M

I

Blow to face/feet

N

R

Blow to feet

H

N

Q

Defrost/blow to feet

G

L

S

Defrost switch

F

N

S

Fresh air blow switch

A

Interior cycling air switch

B

Temperature controlling switch

16°C

Full cooling

C

17°C-

31°C

Controlling by temperature button

32°C

Full heating

E


Dismantling and installation

Vent assembly

 

disassembly

1 Remove dashboard assembly, please refer to the chapter of “Dashboard”.

2 remove fixing screw from dashboard assembly.

3 remove the  snap 1, 2, 3, 4

4 remove air conditioner flue

Installation

Install in the reverse order of removal.

 

 

 

 

 

 

 

 

Air conditioning filter

Dismantling

1 Remove storage box.

2 Press the button of two sides of air conditioning filter lid and remove air conditioning filter lid.

3 Take out air conditioning filter core.

Installation

Install it in reverse order of removal.


Dismantling and assembly

Defrost air flue

Disassemble

1 Remove the fixing bolt from the air duct assembly to separate the defrosting air duct and the blowing air duct.

2 remove defrost air flue from air flue assembly

Assembling

Follow the opposite sequence of the disassembly sequence.

Blow face air flue

Disassemble

1 Remove the fixing bolt from the air duct assembly to separate the defrosting air duct and the blowing air duct.

2 remove blow face air flue from air flue assembly

Assembling

Follow the opposite sequence of the disassembly sequence.