Control Of Air Circulation In The Cab (D); Proper Function Of The Heating And Air-Conditioning System; Fast Heating Of The Cab Space - Zetor PROXIMA POWER Z90 2012 Operator's Manual

CONTROL OF AIR CIRCULATION IN
THE CAB (D)
a - Surrounding (external) air is suc-
tioned to the cab via filters - air suc-
tioning from the cab is closed.
b - Air is suctioned from the inside of
the cab (air recirculation fast quick ad-
justment of temperature in the cab).
In this position the air inlet from
the outside of the cabin is com-
pletely closed and in the cabin
there is no overpressure that pre-
vents penetration of unfiltered air
to the cabin!
Only use this position of the con-
trol for the necessary time!
ACQUAINTANCE WITH THE TRACTOR
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PROPER FUNCTION OF THE HEATING
AND AIR-CONDITIONING SYSTEM
To ensure proper functioning of the heat-
ing or air-conditioning system it is neces-
sary to create overpressure in the cab.
Therefore, we recommend you to close
all the windows, doors and upper lid of
the cabin.
37
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FAST HEATING OF THE CAB SPACE

Proceed as follows:
1. Turn the heating valve control (A) to
the right position (heating valve fully
open).
2. Set the control of air circulation in
the cab (D) to the internal circulation
position.
3. Use the fan control (B) to select the
corresponding fan speed (position 1,
2, 3)
4. Set the outlets to the required angle
to avoid direct blowing of air to the
persons in the cab.
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