air conditioning Hyundai Nexo 2019 Owner's Manual

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Convenient features of your vehicle
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OFE048300/OFE048308
1. Driver’s temperature control knob
2. Passenger’s temperature control knob
3. SYNC button
4. Front windshield defroster button
5. Fan speed control button
6. OFF button
7. AUTO (automatic control) button
8. Air intake control button
9. Rear window defroster button
10. Driver only button
11. Mode selection button
12. Air conditioning button
■ Type A
■Type B

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Convenient features of your vehicle
3
Automatic Temperature
Control Mode
The Automatic Climate Control
System is controlled by setting the
desired temperature.
1. Press the AUTO button (7).The modes, fan speeds, air intake
and air-conditioning will be con-
trolled automatically by the tem-
perature setting you select.
2. Press the temperature control but- ton (1,2) to the desired tempera-
ture. If the temperature is set to
the lowest setting (Lo), the air con-
ditioning system will operate con-
tinuously. After the interior has
cooled sufficiently, adjust the but-
ton to a proper temperature set
point whenever possible.
To turn the automatic operation off,
select any button of the following:
- Mode selection button
- Front windshield defroster button (Press the button one more time to
deselect the front windshield
defroster function. The 'AUTO' sign
will illuminate on the information
display once again.) - Fan speed control button
The selected function will be con-
trolled manually while other functions
operate automatically.
For your convenience and to improve
the efficiency of the climate control,
use the AUTO button and set the
temperature to 72°F (22°C).
Never place anything near the
ambient light/solar sensor to
ensure better control of the heat-
ing and cooling system.
Manual Temperature Control
Mode
The heating and cooling system can
be controlled manually by pushing
buttons other than the AUTO button.
In this case, the system works
sequentially according to the order of
buttons selected.
When pressing any button except the
AUTO button while using automatic
operation, the functions not selected
will be controlled automatically.
1. Start the vehicle.
2. Set the mode to the desired posi-
tion.
To improve the effectiveness of heating and cooling, select the
mode according to the following:
- Heating:
- Cooling:
3. Set the temperature control to the desired position.
4. Set the air intake control to Fresh mode or Recirculation mode posi-
tion.
5. Set the fan speed control to the desired speed.
NOTICE
OFE048068N

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OFE048302
The mode selection button controls the direction of the air flow through the
ventilation system.
6. If air conditioning is desired, turn
the air conditioning system on.
7. Press the AUTO button to convert to full automatic control of the system.
Mode selection (11)

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Convenient features of your vehicle
Information
Operating the system primarily in
Fresh mode is recommended. Use
Recirculation mode temporarily only
when needed.
Prolonged operation of the heater in
Recirculation mode and without the
A/C ON can cause fogging of the
windshield.
In addition, prolonged use of the A/C
ON in Recirculation mode may result
in excessively dry, dehumidified air in
the cabin and may promote formation
of musty vent odor due to stagnant air.
Fan speed control (5)
The fan speed can be set as desired
by pushing the fan speed control but-
ton.
More air is delivered with higher fan
speeds.
Pressing the OFF button turns off the
fan.
Operating the fan when the
POWER button is in the ON posi-
tion could cause the battery to
discharge. Operate the blower
when the vehicle is in the ready
() mode.
Operating the fan when POWER
button is in the ON position could
cause the battery to discharge.
Operate the fan when the vehicle
is in the ready () mode.
NOTICE
NOTICE
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Continued use of the climate
control system operation in
Recirculation mode for a pro-
longed period of time may
cause drowsiness to the
occupants in the cabin. This
may lead to loss of vehicle
control which may lead to an
accident.
Continued use of the climate
control system operation in
Recirculation mode with the
A/C OFF may allow humidity
to increase inside the cabin.
This may cause condensation
to accumulate on the wind-
shield and obscure visibility.
Do not sleep in your vehicle or
remain parked in your vehicle
with the windows up and
either the heater or the air
conditioning ON for pro-
longed periods of time. Doing
so may increase the levels of
carbon dioxide in the cabin
which may lead to serious
injury or death.
WARNING

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3
Air conditioning (12)
Push the A/C button to manually turn
the system on (indicator light will illu-
minate) and off.
OFF mode (6)
Push the OFF button to turn the cli-
mate control system off. You can still
operate the mode and air intake but-
tons.
Driver only
If you press the DRIVER ONLY but-
ton( ) and the indicator light
illuminates, cold air mostly blows in
the direction of the driver's seating
position. However, some of the cold
air may be vented out of other seat-
ing position ducts to keep indoor air
pleasant.
If you use the button with no passen-
ger in the front passenger seat, ener-
gy consumption may be reduced.DRIVER ONLY button will be turned
off under the following conditions:
1) Defrost on (the DRIVER ONLY
button indicator is not turned off)
2) DRIVER ONLY button re-push DRIVER ONLY
OFE048311

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Convenient features of your vehicle
System Operation
Cooling / Ventilation
1. Select the Face Level mode.
2. Set the air intake control to freshmode.
3. Set the temperature control to the desired position.
4. Set the fan speed control to the desired speed.
Heating
1. Select the Floor Level mode.
2. Set the air intake control to freshmode.
3. Set the temperature control to the desired position.
4. Set the fan speed control to the desired speed.
5. If desired, turn the air conditioning ON with the temperature control
knob set to heat in order to dehu-
midify the air before it enters into
the cabin.
If the windshield fogs up, select the
Floor & Defrost mode or press
the Front Defrost mode.
Operation Tips
If dust or unpleasant fumes are entering the car through the venti-
lation system, temporarily set the
air intake control to the recircula-
tion mode. Return the control to the
fresh mode when the unpleasant
air outside has diminished. This will
help keep the driver alert and com-
fortable.
To help prevent the inside of the windshield from fogging, set the air
intake control to fresh mode and
the fan speed to the desired posi-
tion, turn on the air conditioning
system, and adjust the temperature
control to the desired temperature.
Air conditioning
Your HYUNDAI vehicle air condition-
ing system is filled with R-1234yf
refrigerant.
1. Start the vehicle.
2. Press the air conditioning button.
3. Select the Face Level mode.
4. Set the air intake control to Recirculation mode temporarily to
allow the cabin to cool quickly.
When the desired temperature in
the cabin is reached, change the
air intake control back to Fresh
mode.
5. Adjust the fan speed control and temperature control to maintain
maximum comfort.
When maximum cooling is desired,
set the temperature control to the
MAX A/C position, then set the fan
speed control to the highest setting.

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When using the air conditioning
system, monitor the temperature
gauge closely while driving up
hills or in heavy traffic when out-
side temperatures. Air condition-
ing system operation when climb-
ing a steep grade or in high out-
side ambient temperatures can
cause fuel cell stack overheating.
Continue to use the fan, but turn
the air conditioning system off if
the temperature gauge indicates
fuel cell stack overheating.
Air conditioning system operation
tips
If the vehicle has been parked indirect sunlight during hot weather,
open the windows for a short time
to let the hot air inside the vehicle
escape.
After sufficient cooling has been achieved, switch back from recircu-
lation mode to fresh mode. To help reduce moisture inside of
the windows on rainy or humid
days, decrease the humidity inside
the vehicle by operating the air
conditioning system with the win-
dows and sunroof closed.
Use the air conditioning system every month only for a few minutes
to ensure maximum system per-
formance.
If you operate air conditioner exces- sively, the difference between the
temperature of the outside air and
that of the windshield could cause
the outer surface of the windshield
to fog up, causing loss of visibility. In
this case, set the mode selection
knob or button to the position
and fan speed control to the lower
speed.
System Maintenance
Cabin air filter
[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin air filter is installed behind
the glove box. It filters the dust or other
pollutants that enter the vehicle
through the heating and air condition-
ing system.
Have the The cabin air filter replaced
by an authorized HYUNDAI dealer
according to the maintenance sched-
ule.
NOTICE
OIK047401L

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If the vehicle is being driven in
severe conditions such as dusty or
rough roads and/or if transporting
pets or occupants smoke inside the
vehicle, then more frequent cabin air
filter inspections and changes are
required.
If the air flow rate suddenly decreas-
es, the system should be checked at
an authorized HYUNDAI dealer.
Checking the amount of air conditioner refrigerant andcompressor lubricant
When the amount of refrigerant is
low, the performance of the air con-
ditioning is reduced. Overfilling also
reduces the performance of the air
conditioning system.
Therefore, if abnormal operation is
found, have the system inspected by
an authorized HYUNDAI dealer.
It is important that the correct
type and amount of oil and refrig-
erant is used. Otherwise, damage
to the compressor and abnormal
system operation may occur. The air conditioning system should
be serviced by an authorized
HYUNDAI dealer.
Air Conditioning refrigerant label
The actual Air Conditioning refriger-
ant label in the vehicle may differ
from the illustration.
Each symbols and specification on
air conditioning refrigerant label
means as below :
1. Classification of refrigerant
2. Amount of refrigerant
3. Classification of Compressor lubri-
cant
Refer to chapter 8 for more detail
location of the air conditioning refrig-
erant label.
NOTICE
ODH043366
■ Example
Because the refrigerant
is mildly inflammable at
very high pressure, the
air conditioning system
should only be serv-
iced by trained and cer-
tified technicians. It is
important that the cor-
rect type and amount of oil and
refrigerant is used. Otherwise, it
may cause damage to the vehi-
cle and personal injury.
WARNING

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Convenient features of your vehicle
To defrost outside windshield
1. Set the fan speed to the highest(extreme right) position.
2. Set the temperature to the extreme hot (HI) position.
3. Press the defroster button ( ).
4. The outside (fresh) air position will be selected automatically.
If the position is selected, fan
speed may increase slightly to
improve airflow.
Defogging logic
To reduce the probability of fogging
up the inside of the windshield, the
air intake or air conditioning are con-
trolled automatically according to
certain conditions such as or
positions. To cancel or reset the
defogging logic, do the following.
Automatic climate control system
1. Turn the POWER button to the ON position.
2. Press the defroster button ( ).
3. While pressing the air conditioning button (A/C), press the air intake
control button at least 5 times
within 3 seconds.
The Automatic Temperature Control
information screen will blink 3 times
to indicate that the defogging logic
has been disabled.
Repeat the steps again to re-enable
the defogging logic.
If the battery has been discharged or
negative (-) battery cable is discon-
nected, it resets to the defog logic
status.
OFE048306

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3
Auto Defogging System
(Additional Feature with
Automatic Temperature
Control System) (if equipped)
Auto defogging helps reduce the pos-
sibility of fogging up the inside of the
windshield by automatically sensing
the moisture on inside the windshield.
The auto defogging system operates
when the heater or air conditioning is
on.
Information
The auto defogging system may not
operate normally, when the outside
temperature is below 14 °F (-10 °C).When the Auto Defogging
System operates, the indi-
cator will illuminate.
If a high amount of humidity is
detected in the vehicle, the Auto
Defogging System will be enabled.
The following steps will be performed
automatically:
Step 1) The A/C button will turn ON.
Step 2) The air intake control will change to Fresh mode.
Step 3) The mode will be changed to defrost to direct airflow to the
windshield.
Step 4) The fan speed will be set to MAX.
If the air conditioning is off or recircu-
lated air position is manually select-
ed while Auto Defogging System is
ON, the Auto Defogging System
Indicator will blink 3 times to signal
that the manual operation has been
canceled.
To cancel or reset the
Auto Defogging System
Press the front windshield defroster
button for 3 seconds when the
POWER button is in the ON position.
When the Auto Defogging System is
canceled, the ADS OFF symbol will
blink 3 times and ADS OFF will be
displayed on the climate control
information screen.
When the Auto Defogging System is
reset, the ADS OFF symbol will blink
6 times without a signal.
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