Establish a manometer to the highway.
Start the engine, leave to work at frequency of rotation of a cranked shaft of 2000 mines–1 and establish a mode of the maximum cooling at high frequency of rotation of the fan.
Open all windows or doors.
Establish the thermometer in a lattice of supply of air in car salon.
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Establish damp and dry thermometers as it is possible closer to an entrance opening of the block of cooling.
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Check that the pressure shown by a manometer, is in limits of 1,373-1,575 kPas. 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 a lattice of supply of air in salon of the car is in limits 25–35°C.
According to the schedule calculate relative humidity of air, comparing temperature of damp and dry thermometers.
Take temperature in a lattice of supply of air in salon of the car and calculate a difference the dry thermometer and the thermometer in a lattice of supply of air.
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Check that if crossing of relative humidity and a difference of temperatures are in admission limits, means, central air of air works normally.
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