Sterling 360, Driver'S And Maintenance Manual, Page: 94 / 213

8-10
Heating and air conditioning
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2. With the switch in the floor/defrost 50-50
position , air is directed equally toward the feet
and windshield.
•
For cool airflow toward the windshield:
Place the air selection switch in the defrost
position.
2 Using the controls
2.1 To cool the cab
Press the air conditioner switch to turn on the air
conditioner. The A/C indicator illuminates while
the air conditioner is operating.
Set the dial on the temperature control switch to a
comfortable temperature. To cool the cab faster,
turn the dial on the temperature control switch coun-
terclockwise to maximum cooling and the dial on
the fan switch clockwise to maximum speed.
3 Checking the refrigerant level
If the level of the refrigerant is too low, the A/C will
not work as well. Check the refrigerant level when-
ever a problem appears. Set the air conditioner to
maximum--turn the dial of the fan switch to maxi-
mum speed (position ) and the dial of the temper-
ature control switch to maximum cooling (position
). Observe the sight glass through the grille.
Check for the presence of bubbles. The refrigerant
level is normal if no bubbles are visible through the
glass with the A/C on. If bubbles are visible, the
refrigerant level is too low. Have your system
charged at any authorized Sterling service facility.
Refrigerant level low
Refrigerant level normal
Refrigerant level too high, or no refrigerant
If you observe condition and the A/C does not
work well, have the air conditioner inspected by
an authorized Sterling service facility.
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