Mitsubishi Outlander XL. Manual - part 1342

HEATER UNIT

ZC600160

Mode selection damper

Air mixing damper

Heater core

Evaporator

Outside/Inside air 
selection damper

Clean air filter

Intake duct

Blower case

0000

The following new unit integrated blower, heater and
evaporator to increase the air flow, reduce noise, and
improved cooler and heater performance;:

｠

Integrated heater/cooling unit has been adopted for
large air flows and low noise.

｠

Crushable space has been secured to reduce the
risk of passenger injuries.

｠

Air  mix  damper  that  is  also  used  as  a  reheating
prevention  damper  has  been  adopted  to  improve
the air cooling performance.

｠

The A/C condensate water outlet (drain port) has
been installed to behind the evaporator to restrain
the clogging of drain by foreign materials.

｠

The outlet air temperature of the defroster has been
set lower than that of foot to prevent overheating the
driver’s face.

｠

Fin thermo sensor to directly measure evaporator
temperature  reduces  occurrence  risk  of  an
evaporator freeze which will lead to the compressor
lock.

｠

Clean air filter has been introduced as standard to
protect  the  unit  from  the  intrusion  of  foreign
materials (fallen leaves and others). and, it removes
the  pollen  and  dust,  and  improves  the  air  quality
inside the passenger compartment.

｠

Clean  air  filter  media  and  cover  have  been
separated  to  reduce  the  waste  material  amount
generated during the filter replacement.

｠

The installation position of clean air filter has been
set to the backside of glove box to facilitate the filter
replacement  operation.  And,  the  one-touch  tab
structure has been adopted for the cover installation
to enable the replacement operation without tools.

OPERATION

HEATER, AIR CONDITIONING AND VENTILATION

55-5

HEATER UNIT

ZC6003610000

Front defroster

Side defroster

Side defroster

Side 
outlet

Side 
outlet

Center 
outlet

Heater core

Evaporator

Heater outlet

Heater outlet 
to compartment

Recirculation

Fresh

Blower motor

Clean air filter

CRUSHABLE SPACE

ZC600362

Drain port

Front side

Crushable space

0000

Crushable space

Evaporator

Heater core

The  evaporator  and  heater  core  has  been
longitudinally installed in the vehicle length, and the
crushable  space  has  been  adopted  so  that  the
structure absorbs the impact in case of a collision and
reduces the risk of passenger injuries.

HEATER CONTROL

M25501000009USA0000010000

HEATER CONTROLLER

ZC600015

MAX

  A/C

ZC600016

ZC600017

ZC600018

ZC6003210000

Rear window defogger switch

Outside/Inside air 
selection switch

Mode selection knob

Temperature adjustment knob

Blower knob

A/C switch

Rear window 
defogger switch

Outside/Inside air 
selection switch

Mode selection knob

Temperature 
adjustment knob

Blower knob

A/C switch

Rear window defogger switch

Outside/Inside air 
selection switch

Mode selection knob

Temperature adjustment knob

Blower knob

A/C switch

Rear window defogger switch

Outside/Inside air 
selection switch

Mode selection knob

Temperature 
adjustment knob

Blower knob

A/C switch

<MANUAL A/C>

Maximum  
A/C position

<VEHICLES FOR USA>

<VEHICLES FOR CANADA>

<VEHICLES FOR USA>

<VEHICLES FOR CANADA>

<AUTOMATIC A/C>

55-6

HEATER, AIR CONDITIONING AND VENTILATION

HEATER CONTROL

The features of the heater controller described below
have  been  designed  for  better  appearance,  easier
operation, and improved visibility.

｠

Each  dial  for  the  air  outlet  switching,  fan  volume
control,  and  temperature  adjustment  has  been
enlarged to improve operability.

｠

Ring lights have been adopted to inside the dials to
improve appearance during nighttime.

｠

A confirmation sound at switch operation has been
added.

｠

AUTO and OFF positions of the fan volume control
dial have been exchenged with one another. This

change prevents the dial to pass the AUTO position
when  the  fan  volume  control  is  turned  OFF,  and
eliminates  the  necessity  of  manual  reselection
when  switching  the  inside/outside  air  selection
manually, thus improving the operability. <Vehicles
with automatic A/C>

｠

When the air outlet switching dial and fan volume
control dial are turned to the AUTO position, the A/
C switch has been made to automatically turn ON
to  improve  convenience.  (Using  the  customize
function, this function can be cancelled.) <Vehicles
with automatic A/C>

A/C COMPRESSOR

M25501000011USA0000010000

ZC600338

Discharge cavity capacity

0000

High-efficiency scrolling compressor built into the oil separation
enhance the cooling performance. Compressor discharge cavity
capacity  has  been  expanded  to  reduce  discharge  pulse,
vibration, and noise.

A/C COMPRESSOR CLUTCH WITH THERMAL

FUSE

A thermal fuse is installed in the A/C compressor field core. If
the compressor fails, the thermal fuse will be blown due to friction
heat  produced  by  the  drive  belt  and  locked  compressor.  This
deenergizes  the  A/C  compressor  clutch  and  allows  the
compressor to run freely.

A/C-ECU

M25501000012USA0000010000

CONTROL

FORCED DEF CONTROL
When  air  outlet  position  is  switched  to  DEF,  A/C  is
automatically  turned  ON,  and  outside/inside  air
selection  damper  is  set  to  the  fresh  air  position  to
quickly defrost the windshield screen.

MAX A/C CONTROL <Vehicles with manual A/C>
When the preset temperature is set to the maximum
cooling,  the  control  status  becomes  as  described
below.

Subject to control

Control status

Air mix damper

MAX COOL position

Air outlet mode

Selected position

Air volume

Selected position

Outside/inside

 air

selection damper

Air recirculation position

A/C switch

ON

HEATER, AIR CONDITIONING AND VENTILATION

55-7

A/C COMPRESSOR

MAX COOL, MAX HOT CONTROL <Vehicles with
automatic A/C>
When the set temperature is at 18.0 °C <61°F> (MAX
COOL) or at 32.0 °C <89°F> (MAX HOT) with the air
outlet  and  air  volume  at  the  AUTO  positions,  the
following controls are made automatically by the A/C-
ECU.

Subject

 to

control

MAX COOL

MAX HOT

Air

 mix

damper

MAX

 COOL

position

MAX

 HOT

position

Air

 outlet

mode

FACE position

FOOT position

Air volume

Maximum

Maximum

Outside/
inside

 air

selection
damper

Air

 recirculation

position*

Fresh

 air

position*

A/C switch

ON*

OFF*

NOTE: 

"*" indicates that when the automatic

control is cancelled because of the customize
function, the automatic control is not performed.

IDLE-UP CONTROL
A/C-ECU and the ECM communicate with each other
through the CAN communication. The idle-up speed
of the engine is controlled in two steps depending on
the  A/C  load  to  secure  the  air  cooling  performance
during  summer  and  to  improve  fuel  economy  in
seasons with moderate temperature.

DETECTION CONTROL FOR REFRIGERANT
LEAKS
A/C-ECU determines if the refrigerant amount is less
than specified or refrigerant pressure is abnormal by
using the ambient temperature (ambient temperature
sensor  to  measure  refrigerant  inflation  rate)  and
refrigerant pressure (measured by the A/C pressure
sensor).  When  refrigerant  amount  or  refrigerant
pressure is judged abnormal, the compressor is cut-
off to protect the A/C system.

NOTE: 

When abnormality occurs, the A/C indicator

flashes.

REAR WINDOW DEFOGGER TIMER CONTROL
To reduce electrical load to battery, the defogger is
automatically turned OFF, 20 minutes after it is turned
ON or while engine is stopped.

PROTECTION CONTROL AT AIR BAG
DEPLOYMENT (DURING COLLISION)
When  the  air  bag  deployment  is  detected,  the  A/C
system is shut down.

CUSTOMIZE FUNCTION
Depending  on  the  user's  preference,  the  following
functions  can  be  adjusted.  The  programmed
information  is  held  even  when  the  battery  is
disconnected.

｠

Automatic control for inside/outside air selection
Press and hold (approximately for 10 seconds) the
inside/outside  air  selection  switch  to  cancel  the
automatic control for inside/outside air selection.

｠

A/C automatic control
Press and hold (approximately for 10 seconds) the
A/C switch to cancel the A/C automatic control.

55-8

HEATER, AIR CONDITIONING AND VENTILATION

A/C-ECU