Opel Vectra B

Since 1995 of release

Repair and car operation



Opel of Vektra
+ 1.1. Controls and control devices
+ 2. Maintenance service
+ 3. Engines
- 4. Heating, ventilation
   + 4.1. Cooling system
   + 4.2. A heating system and ventilation
   4.3. Air central air
+ 5. Fuel system
+ 6. Systems of start, ignition
+ 7. Transmission
+ 8. Brake system
+ 9. A running gear
+ 10. A body
+ 11. An electric equipment
+ 12. The basic malfunctions


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4.3. Air central air
THE GENERAL DATA

On some models air central air is established. The system works as follows. The compressor compresses a reagent and submits it to the condenser where the reagent becomes liquid and reduces the temperature. The liquid reagent passes through the expansion valve to the evaporator where extends from a liquid under a high pressure to gas under low pressure. This expansion is accompanied by fall of temperature which cools the evaporator. The reagent comes back to the compressor and the cycle repeats. Air which has passed through the evaporator, gets to the distributor where mixes up with the hot air which has passed through a heater therefore the set temperature of air is reached.

Unique action which can be executed independently, on air central air is a replacement drive a compressor belt.


The prevention

Air central air is under pressure, therefore it is impossible to weaken any connections in a central air pressure is not removed yet.


The central air should be served by exclusively prepared technicians trained in safe working methods, with application of the appropriate equipment, with observance of rules of the depressurization, acquainted with receptions of gathering and order of storage of an automobile coolant.

At work on air central air it is necessary to consider the following:

Air central air is filled by reagents which are very dangerous substances. At work with reagents they should not get on an upholstery, clothes, to eyes and on a body of the person. At hit on a body reagents will cause strong обморожение. Also it is impossible to spend works with reagents in the closed volume since reagent steams can cause an asthma. Reagents it is heavier than air, therefore gather in the bottom parts of a premise or a viewing hole.

At work near to a central air put on goggles.

At coolant hit on a skin or eyes do not pound the amazed place. Immediately wash out cold water within not less than 15 minutes. Immediately address to the doctor or in a medical institution. Self-treatment is not supposed.

It is impossible to influence reagents of a central air of air an open flame since poisonous gas is thus formed, and in certain cases can occur and explosion.

Discharge air central air only in corresponding containers since otherwise the serious damage will be caused to the surrounding nature.

In case of any separation of a central air of air, in an order THAT is necessary to make refuelling and system reduction at station.

If it is necessary to make welding, the soldering or other works connected with heats about a central air, it is necessary for discharging preliminary.

Clearing of the condenser or the evaporator by means of water steam is not supposed, it is necessary to use only cold water or compressed air.