| 412-00 Climate Control System - General Information
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2014 Fiesta
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| Description and Operation
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Procedure revision date:
               05/13/2013
               
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Climate Control System - Vehicles With: Electronic Automatic Temperature Control (EATC) - Overview
   
   
   
   
   
Overview 
   
   
The climate control system consists of the following components: 
   
   
      
      
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 compressor
         
      
 
      
      
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 compressor clutch assembly
         
      
 
      
      
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 condenser core
         
      
 
      
      
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 evaporator core
         
      
 
      
      
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         Receiver/drier
         
      
 
      
      
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         Connecting refrigerant lines
         
      
 
      
      
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         Thermostatic Expansion Valve (TXV)
         
      
 
      
      
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         Heater core and evaporator core housing
         
      
 
      
      
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 control module
         
      
 
      
      
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         Ambient air temperature (AAT) sensor
         
      
 
      
      
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         Evaporator temperature sensor
         
      
 
      
      
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         Center register air discharge temperature sensor
         
      
 
      
      
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         Footwell air discharge temperature sensor
         
      
 
      
      
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         In-vehicle temperature sensor
         
      
 
      
      
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         Sunload sensor
         
      
 
      
      
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         Air distribution door actuator
         
      
 
      
      
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         Air inlet door actuator
         
      
 
      
      
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         Temperature door actuator
         
      
 
      
      
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         Blower motor
         
      
 
      
      
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         Blower motor speed control
         
      
 
      
   
   
   
The 
 system heats or cools the vehicle interior depending on the  
 control panel selection. 
   
   
   
      
      
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         The driver may override the automatic mode of operation. 
         
      
 
      
      
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         The control panel selection determines heating or cooling, air distribution and enables blower motor operation. 
         
      
 
      
      
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         The temperature control setting determines the outlet air temperature. 
         
      
 
      
      
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         The fan speed control varies the blower motor speed. 
         
      
 
      
      
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         During 
 operation, the system reduces the relative humidity of the air inside the vehicle. 
         
      
 
      
   
   
   
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