5-23
68PH5-74E
System Operating Instructions
Natural ventilation
Select “VENTILATION” and “FRESH AIR”,
the temperature selector to the desired
temperature position, and the blower
speed selector to off. Fresh air will flow
through the vehicle during driving.
Forced ventilation
The control settings are the same as for
natural ventilation except you set the
blower speed selector to a position other
than off.
Normal heating (using outside air)
Select “HEAT” and “FRESH AIR”, the tem-
perature selector to the desired tempera-
ture position and the blower speed selector
to the desired blower speed position. Set-
ting the blower speed selector to a higher
blower speed position increases heating
efficiency.
Quick heating (Using recirculated air)
The control settings are the same as for
normal heating except you select “RECIR-
CULATED AIR”. If you use this heating
method for an extended period of time, the
air in the vehicle can become contami-
nated and the windows can become misty.
Therefore, use this method only for quick
heating and change to the normal heating
method as soon as possible.
Head cooled/Feet warmed heating
Select “BI-LEVEL” and “FRESH AIR”, the
temperature selector to the desired tem-
perature position, and the blower speed
selector to the desired blower speed posi-
tion. Unless the temperature selector is in
the fully COLD position or fully HOT posi-
tion, the air that comes out of the center
and side outlets will be cooler than the air
that comes out of the floor outlets.
Normal cooling
Set the air flow selector to “VENTILATION”,
the temperature selector to the desired tem-
perature position and the blower speed
selector to the desired blower speed posi-
tion, and turn on the “A/C” switch. Setting
the blower speed selector to a higher
blower speed position increases cooling
efficiency.
You can switch the air intake selector to
either “FRESH AIR” or “RECIRCULATED
AIR” as you desire. Choosing “RECIRCU-
LATED AIR” increases cooling efficiency.
Quick cooling (Using recirculated air)
The control settings are the same as for
normal cooling except you select “RECIR-
CULATED AIR” and the highest blower
speed.
NOTE:
• If you select “RECIRCULATED AIR” for
an extended period of time, the air in the
vehicle can become contaminated.
Therefore, you should occasionally
select “FRESH AIR”.
• If your vehicle has been left in the sun
with the windows closed, it will cool
faster if you open the windows briefly
while you operate the air conditioner with
the air intake selector at “FRESH AIR”
and the blower at high speed.
Dehumidifying
Set the air flow selector to a desired air
flow selector position, the temperature
selector to the desired temperature posi-
tion and the blower speed selector to the
desired blower speed position. Also select
“FRESH AIR” and turn on the “A/C” switch.
NOTE:
Because the air conditioner dehumidifies
the air, turning it on will help keep the win-
dows clear, even when blowing heated air
using the “DEFROST” or “HEAT &
DEFROST” functions.