Dual Zone Air Conditioning (A/C) System Description. Buick Park Avenue 1998

For 1990-2009 cars only

Makes 🢒 Buick 🢒 1998 🢒 Park Avenue 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Dual Zone Air Conditioning (A/C) System Description

The automatic A/C system (C68) consists of the following components:

•

A heater

•	A ventilation system

•	An air conditioning system

This system is controlled by electronic circuits and by vacuum circuits. These circuits determine the following locations:

•	The air intake locations

•	The discharge locations

The electronic circuits also control the following items:

•

The mode

•	The A/C compressor clutch operation

•	The blower fan operation

•	The discharge air temperature

The driver may select the following options from the system control panel:

•	A desired interior temperature

•	The blower fan speed

•	The mode of operation

In the automatic mode of operation, the system determines the following settings:

•	The appropriate air intake locations

•	The discharge locations

•	The blower fan speed

•	The discharge air temperature

These settings depend on the temperature and information that is selected by the driver. This information is provided by the system's network of sensors.

The automatic A/C system utilizes a variable displacement orifice tube (VDOT) type of refrigeration system. Refer to Refrigeration System Description .