- Install the manometer to the highway.
- Start the engine, leave to work at the frequency of rotation of a bent shaft of 2000 min. –1 and set the mode of the maximum cooling with a high frequency of rotation of the fan.
- Open all windows or doors.
- Install the thermometer in an air supply lattice in interior of the car.
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- Install damp and dry thermometers as it is possible closer to an entrance opening of the block of cooling.
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- Check that pressure shown by the manometer is in limits of 1,373-1,575 kPa. If pressure too high, pour water on the condenser. If pressure too low, close the forward party of the condenser.
- Check that air temperature in an air supply lattice in interior of the car is in limits of 25-35 °C.
- According to the schedule calculate relative humidity of air, comparing temperature of damp and dry thermometers.
- Take temperature in an air supply lattice in interior of the car and calculate a difference the dry thermometer and the thermometer in an air supply lattice.
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- Check that if crossing of relative humidity and a difference of temperatures are in admission limits, so the air conditioning system works normally.
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