Daewoo Nexia

Since 1994 of release

Repair and car operation

Daewoo Nexia
+ The maintenance instruction
+ Maintenance service
+ The engine
+ 3. The engine (two top camshafts)
+ Cooling system
+ Fuel and exhaust systems
+ Electric chain
+ 7. Ignition system
+ 8. The electronic block of management and gauges
+ Transmission
+ 10. A five-speed transmission and the main transfer RPO MM5
+ 11. Automatic Transmission
+ Steering
+ Running gear
+ 14. A forward suspension bracket
+ 15. A drive of forward wheels
+ 16. A back suspension bracket
+ Brake system
+ Body
- Heating, ventilation
   19.2. Air central air
   19.3. Diagnostics of malfunctions
   19.4. Features of the conditioner
   19.5. Work of a central air of air
   + 19.6. Management of air central air
   19.7. The relay and switches
   + 19.8. Diagnostics of malfunctions
   + 19.9. Maintenance service
   + 19.10. Removal and installation of knots of a central air of air
   19.11. Compressor V-5 – the work description
+ Electric equipment

19.2. Air central air

At use in a central air of air of coolant HFC-134a (under the special order).

Coolant HFC-134a (R-134a) is applied in common with the special refrigerating oil PAG intended for greasing of knots of a friction of the refrigerating unit. This coolant is not compatible to coolant CFC-12 (R-12) and mineral oils. It is forbidden to use coolant R-12 and lubricant oils on a mineral basis in air central airs (KB), working on coolant HFC-134a (R-134a). It is forbidden to apply To these systems KB also the service equipment intended for conditioners, filled with coolant R-12. Otherwise the conditioner or the service equipment will fail. For service of conditioners of air where coolant R-134a is used, it is necessary to apply only the equipment corresponding to requirements of standard SAE J2210.

The prevention

Contact to steams and air suspensions of a coolant and refrigerating oil can lead to irritation of a mucous membrane of eyes, a nose and a throat. Avoid a steam inhalation and suspensions of a coolant and refrigerating oil. At casual leak of a coolant from system KB air a working premise before continuing work. The conditioner of air working on coolant R-134a, and the corresponding service equipment is forbidden for checking on tightness by means of compressed air.

The mix of air with coolant R-134a at an elevated pressure is inflammable and can blow up. Serious traumas of people and the big material damage are thus possible. Never check by means of compressed air the service equipment and the conditioners of air filled with coolant R-134a.
Additional security measures are resulted in the documentation of manufacturers of coolants and oils for air conditioners.