Zetor 8621 Forterra turbo, Operator'S Manual

Page: 33 / 315

33
CONTROLS
F 50 F 51 F 52
∗ AC CONTROL
The switch with symbol of flake controls
air-conditioning.
It is necessary to create overpressure in
the cab for the proper function of AC.
That
ř s why we recommend to shut all
windows, doors and cab roof cover.
COOLING THE CAB
For fast cooling the inner space of cab
move the heating shut off lever (2) into
the left position (i.e. fresh air inlet is
closed). Choose the desired blower
speed by the four speed blower switch
(position 1, 2, 3). Set outlets with desired
angle to avoid direct blowing to persons
in the tractor cab (possible injury
because of intensive cooling of person
ř
s
body).
AC OPERATION
With switched AC and permanently
closed heating shut off lever (2) in left
position (i.e. fresh air circuit closed) the
inner air is breathed out. Persons could
become tired. That
ř s why we recom-
mend do move the lever (2) into the right
position (fresh air opened) immediately
after cooling down and reduction of the
inner temperature to desired level. The
fluent regulation of system is carried out
by partial opening of the heating valve
with heating control lever (3).
At the same time dry air from AC system
becomes moisture by this way.
PDF byl vytvo r en zku s ebn ı verz ı FinePrint pdfFactory http://www.fineprint.cz