HEATER SYSTEM

id071100002500

Outline

• The heater system warms the heater core using the engine coolant warmed while the engine is operating, and warms the air passing through the heater core.

• A PTC heater has been adopted to temporarily improve the A/C unit heating performance for diesel engine vehicles which have good thermal efficiency (with PTC heater).

Function

Heater core

• The heater system intakes a portion of the warmed engine coolant into the heater core and circulates it.

PTC heater (With PTC heater)

• The heater system warms the air passing in the A/C unit using the heat generated by the PTC heater.

Structure/Construction

Structural View

L.H.D. (SKYACTIV-G 2.0, SKYACTIV-G 2.5 (without cylinder deactivation), SKYACTIV-G 2.5 (with cylinder deactivation))

ac5wzn00004745

L.H.D. (SKYACTIV-D 2.2)

ac5wzn00003726

L.H.D. (SKYACTIV-G 2.5T)

ac5wzn00005179

R.H.D. (SKYACTIV-G 2.0, SKYACTIV-G 2.5 (without cylinder deactivation), SKYACTIV-G 2.5 (with cylinder deactivation))

ac5wzn00004746

R.H.D. (SKYACTIV-D 2.2)

ac5wzn00003728

R.H.D. (SKYACTIV-G 2.5T)

ac5wzn00005180

Operation

1. Engine coolant flows into the heater core by the operation of the water pump.

2. When the warmed engine coolant circulates in the heater core, the heater core warms up.

ac5wzn00003729

3. The air passing through the warmed heater core is warmed by heat exchange.

ac5wzn00003730

PTC heater (With PTC heater)

• For the PTC heater operation, refer to the [PTC HEATER]. (See PTC HEATER.)