VENTILATION, HEATING, AIR CONDITIONING AND AIR PURIFICATION SYSTEM
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• The vehicle equiped with the DI engine has the supplementary heating
devices to increase the heating effect before the engine coolant fully
warms up. The supplementary heating devices are as follows:
-
PTC (Positive Temperature Coefficient)
SUPPLEMENTARY HEATING DEVICE
PTC
This supplementary heater is an electrical air heating type and installed on the heater outlet port. This device
improves the heating effect by increasing the temperature of flowing air into the passenger room.
This device is operational/non-operational when the engine control unit supplies/cuts off the voltage to the PTC
according to the coolant temperature and the ambient temperature.
XX
XX
X Operational Condition
This device is activated when the blower switch is at any position other than the “OFF” position and the coolant
temperature and the ambient temperature is within a specified range.
XX
XX
X Non-operational Condition
• The blower switch is at the “OFF” position
• Defective ambient temperature sensor
• During engine cranking
• Battery voltage is too low
• During pre-glowing process (
indicator ON)
09-Ventilation, Heating, Air Conditioning and Air Purification System.p65 2006-05-17, ¿ÀÈÄ 12:59Page 5 Adobe PageMaker 6.5K/Win
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