Zetor FORTERRA HSX Series, Operator'S Manual, Page: 46 / 222

Air circulation in cabin control (D)
Proper function of the heating and air-condition system
Fast heating of the cabin area
Fast cooling of the space of the cabin
a - Surrounding (outside) air is sucked in through filters to
cabin - sucking the air from cabin is closed.
b - Air is sucked in from the space of the cabin and again
blown off to the cabin (inner air recirculation for fast
adjustment of temperature in the cabin).
The intake of air from the outside of the cabin is
completely locked and there is no surplus pressure in
the cabin which would prevent pervasion of unfiltered
air to the cabin! Do not use this position of the control
with work of the tractor!
F_02_17b
It is necessary to create surplus pressure in the cabin for
proper function of the heating or air-condition. We
therefore recommend you to close all the windows and
doors and tilting cover of the cabin.
F11N009
Proceed accordingly:
1 - Turn the heating valve control (A) to the position on the
right (fully opened heating valve).
2 - Set air circulation in cabin control (D) to the position of
inner circulation.
3 - Select applicable gear of the ventilator run (position 1,
2, 3) by ventilator control (B).
4 - Set the expiration under the requested angle to avoid
direct fanning of the people in the cabin.
5 - After heating the space of the cabin, set the air
circulation in the cabin control (D) to the position of
sucking the outer air - see fig. F_02_17b position (a)
F_02_18a
Proceed accordingly:
1 - Switch the heating valve control lever (A) to the
position to the left
2 - Set the air circulation in the cabin lever (D) to the
position of outer air sucking
3 - Select an applicable gear of the ventilator run (position
1, 2, 3) by ventilator control (B)
4 - Switch the air-condition system by a switch (C)
5 - Set expiration under the requested angle so that direct
fanning of people in the cabin does not occur (the
possibility of illness due tointensive cooling of parts of
body).
F_02_18
ACQUAINTANCE WITH THE TRACTOR
45