Remote Air Conditioning System - Toyota Prius Manual

Remote Air Conditioning System (2010 Model)
The remote air conditioning system is provided to enhance occupant comfort by
heating or cooling the vehicle interior while the vehicle is shut off and the
charge cable assembly is plugged in.
The remote air conditioning system is similar to a remote engine start system
used in a conventional gasoline vehicle to precondition the vehicle interior
while the vehicle is parked. Unlike a conventional gasoline vehicle, the Prius
Plug-in hybrid does not start the gasoline engine. Instead, to heat or cool the
vehicle interior, it utilizes power from the charge cable assembly to operate the
high voltage air conditioning compressor. The compressor operates in a
conventional manner for cooling, and it operates as a heat pump for heating.
The system can only be activated remotely by pushing the smart key A/C
button and will operate for up to 30 minutes when certain conditions are met.
Safety Concerns
Since the operation of the remote air conditioning system allows high voltage
electrical flow, it is important to recognize how the system is activated,
deactivated, and disabled.
System Activation:
When the remote air conditioning system is activated, the high voltage cables
are energized. Household electricity flows from the charge inlet, its voltage is
then boosted and it is provided to the HV battery assembly and air conditioning
compressor. The system can operate when all of the following operating
conditions are met:
•
The charge cable assembly is connected.
•
The doors and hood are closed.
•
The vehicle Power switch is off.
•
The brake pedal is not being depressed.
•
The shift position is park (P).
•
The charge level of the HV battery assembly is above a specified level.
•
There is a difference between the set temperature and actual cabin
temperature.
The following points can be used to confirm that the remote air
conditioning system is operating:
•
Air is flowing from the interior vehicle vents, and blower fan noise or
compressor noise is heard.
•
The charge cable assembly is connected and the charge indicator is
illuminated.
•
The instrument cluster lights are on, the READY indicator is off, and
all of the conditions in the preceding list are met.
Charge Indicator
Charge Cable
Assembly
Charge Cable Assembly and Charge
Indicator
Air Conditioning
Compressor
DC Flow
AC Flow
Remote Air Conditioning System Operation (READY Indicator Off)
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Remote Air Conditioning System A/C
Button
12 Volt Auxiliary
Charger Assembly
DC Flow
HV Battery Assembly
Charge Inlet
A/C Button
Battery