Subaru Legacy/Outback

1999-2003 of release

Repair and car operation



Subaru Legasi, Autbek
+ Cars Subaru Legacy, Outback
+ The operation manual
+ Routine maintenance
+ The engine
- Systems of cooling, heating
   Specifications
   + System of cooling of the engine
   - Heating/ventilation/air conditioning systems
      Removal and installation дефлекторов and air lines
      Removal and installation of resistive assemblage drive the electromotor of the fan of a heater
      Removal, check and installation drive the electromotor of the fan of a heater
      Removal and installation of the control panel by functioning of systems of heating/ventilation/air conditioning
      Removal and installation of assemblage of a heater
      Removal and installation of the heat exchanger of a heater
      Check of serviceability of functioning and service of systems of heating and air conditioning
      Compressor K/V - a design and a functioning principle
      Condenser K/V - a design and a functioning principle
      Receiver-dehumidifier К/В - a design and a functioning principle
      The gauge-switch of pressure К/В - a design and a functioning principle
      Evaporator K/V - a design and a functioning principle
      Broad valve K/V - a design and a functioning principle
      Condition check, removal and installation of the compressor of system K/V
      Removal and installation of the condenser of system K/V
      Removal and installation of a receiver-dehumidifier of system K/V
      Removal and installation of the inlet block of system K/V, evaporator replacement
      Replacement of connecting hoses of a refrigerator path
      Check of serviceability of functioning of the gauge-switch of pressure
      Removal and installation of information gauges of system of an automatic central air (climate control)
+ The power supply system and release
+ Engine electric equipment
+ Manual box and differential
+ Automatic transmission
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment



Broad valve K/V - a design and a functioning principle

Design of the broad valve

1 — the Thermosensitive element
2 — the Diaphragm
3 — From the evaporator (low pressure)
4 — the Throttle

5 — To the evaporator (low pressure)
6 — Klapannyj a ball
7 — To the compressor
8 — From a receiver-dehumidifier


The design of the broad valve is presented on an illustration.

The broad valve is connected both to inlet, and to final to dilator ports. The valve serves for transformation arriving to it from a receiver-dehumidifier which is under a high pressure of a liquid coolant in a suspension arriving in the evaporator of low pressure. The cooled coolant being under low pressure easily evaporates, taking away heat from air filling salon.

The valve carries out the problem after transformation of a working body of system at the expense of automatic control of the coolant expense according to current thermal loading.

The coolant temperature is supervised by the special thermosensitive element which has been built in in низконапорный the channel of the broad valve. Management of account characteristics is made by means of the ball valve which is settling down in высоконапорной of a part of assemblage.

At increase in thermal loading at system the coolant temperature on an evaporator exit rises that conducts to increase of pressure Р1 around installation of a thermosensitive element. As soon as the size of the effort developed by pressure Р1 becomes above the sum of the efforts developed by pressure Р2 on an exit of the evaporator and a spring (F), i.e. the condition is satisfied: Р1> Р2 + F, occurs отжимание downwards the diaphragms, leading to lifting over the saddle клапанного a ball and corresponding increases in the expense of a coolant.


At decrease in thermal loading the return picture takes place.
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