Light Duty Technology Cost Analysis, Power - US Environmental ...
Light Duty Technology Cost Analysis, Power - US Environmental ...
Light Duty Technology Cost Analysis, Power - US Environmental ...
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D.6 Climate Control System and <strong>Cost</strong> Summary Overview<br />
D.6.1 Climate Control Hardware Overview<br />
The HEV technology configuration drove both a heating and defrosting, and<br />
refrigeration/air conditioning, subsystem change. An auxiliary water pump was added for<br />
the heating and defrosting subsystem to maintain hot coolant flow through the heater core<br />
during ICE shutdown mode. In the refrigeration/air conditioning subsystem, an electric<br />
compressor is required to maintain cool air flow in the passenger compartment during<br />
ICE shutdown mode. Beyond the compressor there is little to no difference in plumbing<br />
of the refrigerant lines. The condensers and evaporators are found to be the same on both<br />
vehicles and are excluded from the analysis.<br />
D.6.1.1 Heating Defrosting Subsystem<br />
The Fusion HEV auxiliary coolant pumping subsystem contains an auxiliary water pump<br />
(shown in Figure D-59) mounting bracket, electrical jumper harness, and additional<br />
coolant lines/hardware required to splice into conventional engine coolant pumping<br />
system.<br />
Figure D-59: Auxiliary Water Pump<br />
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