Mitsubishi Evolution X. Manual — part 70
NOTES
55-1
GROUP 55
HEATER, AIR
CONDITIONING AND
VENTILATION
CONTENTS
GENERAL DESCRIPTION. . . . . . . . .
HEATER AND AIR CONDITIONING
SYSTEM . . . . . . . . . . . . . . . . . . . . . . .
HEATER CONTROL . . . . . . . . . . . . .
A/C-ECU. . . . . . . . . . . . . . . . . . . . . . .
A/C COMPRESSOR . . . . . . . . . . . . . .
CONDENSER . . . . . . . . . . . . . . . . . . .
DUCT. . . . . . . . . . . . . . . . . . . . . . . . . .
VENTILATION SYSTEM. . . . . . . . . . .
GENERAL DESCRIPTION
TSB Revision
HEATER, AIR CONDITIONING AND VENTILATION
55-2
GENERAL DESCRIPTION
M2551001500084
The new HVAC unit integrates blower, and evapora-
tor, it increases the air flow but reduces air flow resis-
tance and air flow noise.
FEATURES
.
ENHANCEMENTS IN COMFORT
• With the adoption of automatic A/C system, the
air inlets (fresh air/recirculation air), the vents,
temperature at the vents and fan speed are auto-
matically controlled according to the outside tem-
perature and cabin temperature so that the
optimum air conditioning is achieved.
• By the adoption of clean air filter, the air quality in
the cabin has been kept.
.
ENHANCEMENTS IN OPERATION
PERFORMANCE
• Operability has been enhanced by the adoption
of large triple dial.
• Customize function has been added for the
enhanced convenience.
.
ENHANCEMENTS IN FUEL ECONOMY
• The high efficiency compressor with a 2-step and
the oil separator has reduced A/C system work-
load, thus enhancing the fuel economy.
• The idle-up speed is controlled in two steps to
secure the air cooling performance during sum-
mer and to enhance the fuel economy in the
moderate seasons.
• The cooling fan control depending on the refriger-
ant pressure and on the vehicle speed reduce
alternator load, thus enhancing the fuel economy.
.
ENHANCEMENT IN SAFETY
• A/C system will shut down automatically if the air
bags are open.
• Crushable space has been adopted into HVAC
unit to reduce the risk of passenger injuries if a
collision occurred.
.
GLOBAL ENVIRONMENT PROTECTION
• New refrigerant system (HFC134a) has been
adopted.
• Clean air filter media and its cover are separated
to reduce waste materials, when replacing the fil-
ter.
.
ENHANCEMENTS IN SERVICE QUALITY
• Reduction of refrigerant gas leakage and
enhancement in serviceability by incorporating
condenser and receiver
• Clean air filter is installed to the backside of glove
box to facilitate the filter replacement.
.
ENHANCEMENTS IN RESPONSIBILITY
Reliable information transmission is achieved by
connecting A/C-ECU and each ECU via CAN com-
munication.
SPECIFICATIONS
ITEM
SPECIFICATION
Air conditioning switch type
Rotary type
Compressor type
MSC90CAS
Cooling output
5.5 kw
Heating output
5.7 kw
Refrigerant
Type
R134a (HFC-134a)
Charge quantity g (oz.)
480 - 520 (16.9 - 18.3)
GENERAL DESCRIPTION
TSB Revision
HEATER, AIR CONDITIONING AND VENTILATION
55-3
CONSTRUCTION DIAGRAM
AC608755
AD
Interior temperature
sensor
AC608760
AB
Ambient air temperature sensor
AC708434
Heater unit
Liquid pipe
A/C pressure sensor
Suction
flexible hose
Discharge
flexible hose
Condenser
A/C compressor
AC
Low-pressure side valve
High-pressure
side valve
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