Air Flow System
The purpose of the air flow system is to provide
air to the heating, ventilation, defroster, and air
conditioning systems.
Control of the air flow is accomplished by four
types of systems which are Subaru model specific:
Ê Manual cable - Justy
Ë Manual cable/vacuum -Loyale
Ì Manual cable/electric - Legacy,
Impreza, and XT
Í Automatic electric - SVX

Manifold Gauges

The manifold gauges measure the pressures of the low side or suction side and
the high side or discharge side of the system. The gauges are calibrated in "psi for
pressure" and "inches of mercury for vacuum". Note that zero (0) psi is equal to sea
level or 14.7 psi, or the pressure at the altitude level at which the gauge is being used.
The gauge set consists of the valve body, the connectors for the low pressure,
charge or evacuation, and high pressure hoses, and the gauges. The service valves
are infinitely adjustable between fully open and fully closed.

Subaru of South Hills

3260 Washington Road
Directions McMurray, PA 15317

  • Sales: 833-217-9021
  • Service: 833-218-4106
  • Parts: 833-218-4113

Sales Hours

  • Monday 9am - 8pm
  • Tuesday 9am - 8pm
  • Wednesday 9am - 8pm
  • Thursday 9am - 8pm
  • Friday 9am - 5pm
  • Saturday 9am - 5pm
  • Sunday Closed