Zetor PROXIMA POWER Z90 2012, Operator'S Manual

Page: 39 / 222

38
ACQUAINTANCE WITH THE TRACTOR
E123 E124 E125
FAST COOLING OF THE CAB SPACE
1. Turn the heating valve control (A) to
the left position.
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. Use the switch (C) to switch on the
air-conditioning system.
5. Set the outlets to the required angle
to avoid blowing of air directly to the
persons in the cabin (possible oc-
currence of an illness due to inten-
sive cooling of body parts).
HEATING OR AIR-CONDITIONIG
OPERATION DURING WORK OF THE
TRACTOR
When internal air circulation is on, the air
inlet is closed and the air in the cab space
may be breathed up by the operators. This
situation may cause feelings of tiredness.
Note: During work set the switch (D) in
accordance with individual requirements to
a temperature in a position between (a)
and (b) so that the fan can suction air from
the outside via filters.
When pesticides are sprayed and a
heating filter with active carbon is
used, the recirculation control must
be in the “air suctioned from the out-
side” position and the fan control in
the “maximum” position to create
overpressure in the cab.
IMMEDIATELY AFTER COOLING
DOWN THE CAB
Immediately after cooling of the cabin and
reduction of the internal temperature to
the required value we recommend you to:

Switch the air circulation control (D)
over from position (b) (air recirculation)
to position (a) (suctioning of external
air).

Perform smooth regulation of air tem-
perature with the air-conditioning on by
partially opening the heating valve (A).
At this setting the air entering the cabin
from the outlets is not dried so inten-
sively.

You can also smoothly regulate the air
temperature with the air-conditioning on
by reducing the fan output by switching
the control (B) to position 1 or 2.