W220 Mercedes
+ Mercedes-Benz Cars of a class S (W220)
+ Operation manual
+ Routine maintenance
+ Engine
- Cooling and heating systems
+ cooling System
- Systems of ventilation, heating and air conditioning
Air central air - the general information and precautionary measures
Arrangement of the basic electric elements of central air of air
+ Power supply system and release
+ engine Electric equipment
+ Automatic transmission
+ Power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ electric equipment Cхемы
Air central air - the general information and precautionary measures
Function chart of a contour of KVManagement of KV on temperature
Management of the KV refrigerator compressor (interpretation of designations is given above)
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Management of the fan of system of cooling/KV (interpretation of designations is given above)
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Management in temperature (interpretation of designations is given above)
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Management of blocking of systems of comfort (interpretation of designations is given above)
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Central air of air consists of the condenser located before a radiator of system of cooling, the evaporator close to the heat exchanger of a heater, the compressor given by a driving belt, a receiver / dehumidifier, and also the various tubes connecting components listed above. On an entrance of the evaporator the zaslonka providing pressure difference, necessary for system work is established.
The fan submits warm air from salon to the evaporator (analog of a radiator) where heat of air is transferred to a coolant. Thus the coolant evaporates and leaves the evaporator.
Schemes of the devices interconnected with KV and components are presented on illustrations.
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The system is under pressure. Do not try to disconnect any tubes concerning central air of air, previously without having removed from it working liquid. Liquid removal from system — rather difficult operation which should be carried out at service station. In system there is a R134a type coolant. Be convinced that at station there is necessary for this purpose such as a coolant an equipment. Use goggles, disconnecting system tubes. |
If on your car air central air is established, at carrying out service of its any component observe the following precautionary measures:
a) The coolant of R134a which is using now, is much less aggressive, than a coolant of the R12 type used earlier. Nevertheless, it is very hazardous to health. Do not allow its hit in eyes or on skin — you can burn. Though it also is not toxic, its pairs can cause asthma — do not delete it from system, being indoors. Its pair it is heavier some air therefore are not under the car at its removal from system.
b) Do not allow contact паров a coolant with open fire. At its combustion poisonous gas is allocated. The gas mixed with air in a certain proportion, can become explosive. Steam inhalation through the lit cigaret can lead to tragic consequences.
c) Do not allow coolant hit in the atmosphere. Unlike R12 the coolant of the R134а type does not cause destruction of an ozone layer, but leads to emergence of greenhouse effect in the atmosphere.
d) In system the consolidations made of a special material, intended for work with the set type of a coolant (for R134а — green color) are used. Casually not to mix various types of coolants, for filling of a certain type of a coolant adapters are used a certain type.
e) The discharge of system should be carried out on HUNDRED Daimler-Benz.
f) Before carrying out any works connected with heating of any knots of the car (welding, the soldering, drying after painting), discharge system. To discharge system it is also necessary before carrying out service any of knots of central air of air.
